50th Annual Wastewater Operators’ Association Conference WWOA Abstra… · 50th Annual Wastewater Operators’ Association Conference ... Registration Booth – North Hall Entrance

50th Annual Wastewater Operators’ Association

Conference

La Crosse Center / Radisson Hotel

La Crosse, Wisconsin

October 11 to October 14, 2016

Host: City of La Crosse Wastewater Treatment Facility

Working to Keep Wisconsin Working to Keep Wisconsin Working to Keep Wisconsin Working to Keep Wisconsin

Waters CleanWaters CleanWaters CleanWaters Clean

2016 Conference Committees

Local Arrangements: Mark Johnson and Jared Greeno

50th Anniversary Committee:

Chair: Wade Peterson

Leo Templeton Pete Albers Dan Bush Carol Strackbein Joe Gehin Ken Sedmak Roy Lembcke Kelly Zimmer Lyle Lutz Jon Butt Jeff Bratz Karen Harter

Technical Committee:

Chair: Jeff Bratz

Lyle Lutz Kelly Zimmer Sharon Thieszen Jeff Smudde Bernie Robertson Jeff Simpson Karen Harter Kris August Jim Smith Mark Zimmerman Don Lintner Troy Larson Rick Mealy Rusty Schroedel Kris Gauger Brian Greffin Dean Falkner Gary Hanson

Exhibit & Manufacturers & Consultants Committee:

Chair: Tom Mulcahy Co-Chair: Carol Strackbein

Dave Dodge Kevin Freber Karen Harter

WWOA OFFICERS

Officers: President Lyle Lutz President Elect Sharon Thieszen Vice President Jeff Bratz Past President Kelly Zimmer Director (2017) Jeff Simpson Director (2017) Jeff Smudde Director (2016) Don Lintner Director (2016) Jim Johnson Director (2017) Kris August Executive Secretary Karen Harter

CONFERENCE MEETING ROOM GUIDE

Registration Booth – North Hall Entrance

WWOA Promotions – North Hall Entrance

Pre-Conference Work Shops – Upper South Hall – Laboratory and Lift Station Rooms

Regional Officers Meeting – Level 2 Skywalk – Zielke Room

Tuesday Meet and Greet – Upper South Hall

Welcome Address & Keynote – Upper South Hall Ballrooms A / B / C

Technical Sessions – North Hall – Rotifer / Aliquot / Biomass Rooms

Exhibitor Expo – Arena and North Hall

Wednesday Walk Around Lunch – North Hall

Operator Competition – North Hall

Wednesday Social Hour – Exhibitor Area

Thursday Operators Lunch and Meeting – Upper South Hall Ballrooms A / B

Plant Tour Departs – Convention Center Entrance – South Hall

Thursday Social Hour – Upper South Hall

Awards Banquet – Upper South Hall Ballrooms A / B / C

Entertainment – Upper South Hall Ballrooms A / B / C

Farewell Breakfast – Radisson Ballroom A

Thank YouThank YouThank YouThank You

The WWOA would like to recognize the following individuals and organizations for their special contributions to the Conference:

Local Arrangements: Mark Johnson & Jared Greeno (La Crosse WWTP)

On-site Pre-Conference Registrations: Mona Jackson (ByTec Resources)

Registration Help: Mary Kundle (Fond du Lac WWTP), Steve Meifert & Barb Thieme (Sheboygan WWTP)

Signage: Troy Larson and Strand Associates

Abstract Booklet – Amy Kistner (AECOM)

Photography – Tom Crouse (Donohue & Associates)

Evaluation Tabulations – Shelly Callahan (Becher-Hoppe)

The WWOA Board offers special thanks to everyone that contributed to the Conference. Your hard work is appreciated by all.

50th Annual Conference

Wisconsin Wastewater Operators’ Association

Tuesday, October 11, 2016 10:00 a.m. Shotgun start Golf Outing: Fox Hollow Golf Course, La Crosse, WI 10:00 a.m. Shotgun start Sporting Clays: Sparta Rod and Gun Club, Sparta, WI 9:30 a.m. Bike Ride: La Crosse River State Trail, La Crosse, WI 1:00 p.m. – 4:30 p.m. Registration Opens: North Hall Registration Booth 1:00 p.m. – 4:00 p.m. Pre-Conference Workshops: Upper South Hall Rooms Laboratory & Lift Station 4:30 p.m. – 6:00 p.m. Regional Officers Meeting: Level 2 Skywalk – Zielke Room 6:00 p.m. – 9:00 p.m. Meet and Greet: Upper South Hall (Beer, Wine, Soda, Cash Bar) 6:00 p.m. – 7:15 p.m. Dinner buffet w/brats and burgers – Upper South Hall Wednesday, October 12, 2016 7:00 a.m. – 5:00 p.m. Registration Opens: North Hall Registration Booth (Scan In & Out) 8:30 a.m. – 8:45 a.m. Welcome Address: Upper South Ballrooms A / B / C WWOA President Lyle Lutz 8:45 a.m. – 10:00 a.m. Keynote Address: Upper South Ballrooms A / B / C Joe Gehin, Ken Sedmak, Duane Schuettpelz 10:00 a.m. – 5:00 p.m. Exhibitor Expo: Arena and North Hall 10:45 a.m. – 12:00 p.m. Technical Sessions: North Hall Rooms Rotifer / Aliquot / Biomass 12:00 p.m. – 1:30 p.m. Walk Around Lunch: North Hall 12:30 p.m. – 4:30 p.m. Operator Competition: North Hall 1:30 p.m. – 4:00 p.m. Technical Sessions: North Hall Rooms Rotifer / Aliquot / Biomass 4:00 p.m. – 5:00 p.m. Exhibitors Social Hour: Arena Exhibit Area Thursday, October 13, 2016 7:00 a.m. – 4:30 p.m. Registration Opens: North Hall Registration Booth (Scan In & Out) 8:00 a.m. – 11:30 a.m. Exhibitor Expo: Arena and North Hall 8:00 a.m. – 11:45 a.m. Technical Sessions: North Hall Rooms Rotifer / Aliquot / Biomass 12:00 p.m. – 12:30 p.m. Operators’ Luncheon: Upper South Ballrooms A / B 12:30 p.m. – 1:30 p.m. Business Meeting: Upper South Ballrooms A / 1:30 p.m. – 4:00 p.m. Plant Tours Departure: Convention Center Entrance by South Hall (must pre-register at Conference Registration Booth for bus transportation) 1:30 p.m. – 4:00 p.m. Technical Sessions: North Hall Rooms Rotifer / Aliquot / Biomass 6:00 p.m. – 7:00 p.m. Social Hour: Upper South Hallway 7:00 p.m. – 9:00 p.m. Awards Banquet: Upper South Ballrooms A / B / C 9:00 p.m. – 11:00 p.m. Entertainment: Upper South Ballrooms A / B / C Studebaker 7, Dance and Door Prizes (hosted beer & soda), Card Playing Friday, October 14, 2016 7:30 a.m. – 11:00 a.m. Registration Opens: Radisson Hotel Lobby 8:30 a.m. - 10:30 a.m. Farewell Breakfast: Radisson Ballroom A – Paul Kent

Presenters

Presenter Session Time Room

Ahmed, BulBul K-1 10:00 AM Aliquot Allen, Rick H-1 & H-2 8:00 AM Aliquot Allen, Rick N-2 & N-3 2:20 PM Aliquot Anderson, Travis/Harenda, Jeff E-4 3:30 PM Aliquot Arnott, Dave J-1 10:00 AM Rotifer Astfalk, Tim F-1 1:30 PM Biomass Bartel, Bruce E-2 2:05 PM Aliquot Bartolerio, Nick/ Carlson, Jane

M-2 2:20 PM Rotifer

Bernius, Jean L-1 10:00 AM Biomass Blazejovshy, Mike F-3 2:55 PM Biomass Bushby, Lisa D-1 1:30 PM Rotifer Butt, Jon/ Hammond, Todd

B-1 10:45 AM Aliquot

Dey, Rick/Hawley, Joan Pre-Con #2 1:00 PM Liftstation Doriott, Jerry M-1 1:30 PM Rotifer Enloe, Lisa A-1 10:45 AM Rotifer Fitzwilliams, Tom I-2 8:50 AM Biomass Foley, Tom/Ghavi, Omkar E-3 2:55 PM Aliquot Greeno, Jared /Kane, Mark K-2 10:55 AM Aliquot Heidemann, Ben M-3 3:15 PM Rotifer Johnson, Mark E-1 1:30 PM Aliquot Kleinschmidt, Jim/Szwedo, John C-1 10:45 AM Biomass Larson. Troy/Neitzel, Jim C-2 11:25 AM Biomass Laschinger, Gene/Warp, Sam O-2 2:20 PM Biomass Lewis, Bryan F-4 3:30 PM Biomass Lynne, Eric /Lintner, Don B-2 11:25 AM Aliquot Mealy, Rick A-2 11:25 AM Rotifer Mealy, Rick Pre-Con #1 1:00 PM Laboratory Morrow, Pat D-2 2:05 PM Rotifer Orr, James F-2 2:05 PM Biomass Paul, Greg G-1 8:00 AM Rotifer Paul, Greg/Brooks, Ben J-2 10:55 AM Rotifer Raisbeck, Wendy O-3 3:15 PM Biomass Raynovic, Mike L-2 10:55 AM Biomass Salmi, Marc N-1 1:30 PM Aliquot Sauer, Dave D-3 2:55 PM Rotifer Sexton, Bart G-2 8:50 AM Rotifer Sorenson, Kim I-1 8:00 AM Biomass Steinbach, Tom D-4 3:30 PM Rotifer Theiszen, Sharon O-1 1:30 PM Biomass

WWOA Pre-Conference Workshops Located in the Upper South Hall

Tuesday, October 11, 2016 1:00 p.m. - 4:00 p.m.

Room / Moderator

Time

Workshop #1 Laboratory

Jake Becken

Workshop #2 Lift Station

Aaron Eichhorst

1:00 p.m. to

2:25 p.m.

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(Fear No Lab Math)

Rick Mealy

CMOM: Next Steps – O&M and Flow Monitoring for Effective Rehabilitation

Joan Hawley/Rick Dey

2:25 p.m. to

2:40 p.m. Break Break

2:40 p.m. to

4:00 p.m.

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(Fear No Lab Math)

Rick Mealy

CMOM: Next Steps – O&M and Flow Monitoring for Effective Rehabilitation

(continued)

Joan Hawley/Rick Dey

Pre-Conference Workshop Summary

Pre-Conference Workshop #1 – 1:00 PM - 4:00 PM Moderator: Jake Becken Room – Laboratory Located in the Upper South Hall Presenters: Rick Mealy Presentation: Fear No Lab Math There’s a lot of math in labwork and many folks fear math. That doesn’t have to be the case. This is designed to be an entertaining but informative workshop session to remove the black box from things like magic numbers (i.e. 8.34). Contrary to what many believe, it does not take a “math mind” to understand math. Nor is there only a single solution to any math problem. There are several ways to “get there”, and this workshop will look at alternative paths to the solution. People still struggle with geomeans, so we will discuss different ways to understand its simple calculation. Sometimes all you need is a little help. In addition, we’ll cover linear regression, geomean, standard deviation and the “Nerd” factor.

Pre-Conference Workshop #2 – 1:00 PM – 4:00 PM Moderator: Aaron Eichhorst Room – Lift Station Located in the Upper South Hall Presenter: Joan Hawley/Rick Dey Presentation: CMOM: Next Steps – O&M and Flow Monitoring for Effective Rehabilitation

Yeah! - My CMOM Plan is done - but now what in the heck do I do? Just because the CMOM Plan is done does not mean that utility is done with implementing CMOM program elements. The CMOM Plan is just the first step in ensuring that the collection system infrastructure is properly maintained, have the ability to minimize wet weather events (infiltration and inflow (I/I)) and eliminate sanitary sewer overflows (SSOs). This interactive workshop will focus on what other steps should the utility be doing on an annual basis with the focus on operation and maintenance (O&M), rehabilitation of the collection system and how to reduce I/I and to address minimize wet weather events and SSOs and satisfying the regulatory agencies Workshop Outline:

• Baseline inspection of the collection system that will be used to develop the rehabilitation/replacement program

� How to put together a comprehensive baseline inspection program � Interpreting inspection data – and how to use it � Using inspection data to determine end of asset life to budget replacement or rehabilitation

• Fundamentals of a good rehabilitation program including private lateral � How to put together a cost-effective rehabilitation package and defining project scope � What works and what doesn’t work for rehabilitation programs � Specifications � Manhole rehabilitation

• Effective Flow monitoring � Why is flow monitoring critical? � How to identify weather related problem areas? � How to quantify wet weather flows � Reporting events and how to eliminate problem areas � Where should flow monitors be installed? Examples of good and bad locations � Data – junk in – junk out…How to use data effectively. � Technology discussion � Data Collection & What type of data/alarms are needed � What tools are effective to detect infiltration and inflow?

• Examples of what utilities are doing for effective CMOM programs. (O&M, Rehabilitation, Flow Monitoring, SSO Reduction)

WWOA TECHNICAL PROGRAM SCHEDULE Wednesday, October 12, 2016

CECs: 5.0 Wastewater, 3.0 Waterworks, 5.0 General Septage

South Hall Ballrooms A-B-C Welcome Address – WWOA President Lyle Lutz – 8:30 a.m.

Keynote Speaker – Joe Gehin, Duane Schuettpelz and Ken Sedmak 8:45 a.m. – 10:00 a.m.

Exhibits 10:00 a.m. – 5:00 p.m. in Arena/North Hall

Time

Session A: Tech - E Moderator: Bernie Robertson Room: Rotifer

Session B: Aeration Moderator: Jerry Doriott Room: Aliquot

Session C: Source Control Moderator: John Bond Room: Biomass

10:45 – 11:20

Basic Microsoft Excel for Small Systems Operators

Lisa Enloe

Fine Bubble Retrofit Does It Again

Jon Butt/Todd Hammond

Proactive Approach Reduces Chloride Discharges

Jim Kleinschmidt/John Szwedo

11:25 – 12:00

Interpreting Lab Reports for Dummies/Non-Chemists

Rick Mealy

Not Your Typical Turbo Blower

Eric Lynne/Don Lintner

A Phosphorus Deficit? – Impacts of Soluble BOD5 & Nutrient

Supply on a Municipal/Industrial Activated Sludge System

Troy Larson

Walk Around Lunch: North Hall – 12:00 - 1:30 p.m. Operators Competition: North Hall – 12:00 – 4:30 p.m. CECs: 6 hrs Wastewater

Time Session D: Regulatory Moderator: Rick Mealy Room: Rotifer

Session E:Biosolids Moderator: Troy Larson Room: Aliquot

Session F: Collection System Moderator: Jeff Simpson Room: Biomass

1:30 – 2:00

Operator Cert Rules

Lisa Bushby/Danielle Luke

Replace or Rehab Anaerobic Digesters La Crosse

Mark Johnson

CS 50 Yrs Old, Now What?

Tim Astfalk

2:05 – 2:40

A Plain English Guide to the Statewide Multi-Discharger

Phosphorus Variance

Pat Morrow

Solids Handling Upgrade at NEW Water

Bruce Bartel

Concrete and H2S in Wetwells & Tanks

James Orr

Break: Exhibit Area 2:40 p.m. – 2:55 p.m. Arena/North Hall

2:55 – 3:25

Receiving Water Quality Credits Phase 2

Dave Sauer

Biosolids Program Evaluation & Financial

Model

Tom Foley/Omkar Ghavi

Lateral Lining vs. Grouting Wauwatosa

Mike Blazejovshy

3:30 – 4:00

Adaptive Management/ Watershed Programs

Tom Steinbach

A Case Study for Retrofitting Anaerobic

Digestion Facilities at the City of Waukesha

Travis Anderson/

Jeff Harenda

Case Study in Sustainability Madison MSD Pump

Station #18

Bryan Lewis

Social Hour: Arena/North Hall 4:00 p.m. - 5:00 p.m.

Wednesday, October 12

Session: A Tech - E

Moderator: Bernie Robertson

Room: Rotifer

10:45 AM to 11:20 AM – Basic Microsoft Excel for Small Systems Operators

Presenter(s): Lisa Enloe

Affiliation: City of Neillsville Extreme Basic Excel: For those who have never used it. Basic Microsoft Menu bar: File, Home, Insert, Page, Layout, Formulas, Data, Review, View Toolbar: Clipboard, font, alignment, number, cells, editing Columns, Rows and Cells:

Changing the size, adding borders, alignment, hiding, inserting & deleting, copying (to include an explanation of the clipboard.

Saving and Printing the Excel worksheet. You should now be able to make your own forms!!! The best part of Excel - Making the computer do the math for you!!! How to use formulas: picking the cells needed, writing the formula, showing the formula Setting up a graph: choosing the data, changing the preset data labels and values.


Session: A Tech - E

Moderator: Bernie Robertson

Room: Rotifer

11:25 AM to 11:55 AM – Interpreting Lab Reports for Dummies/Non-Chemists

Presenter(s): Rick Mealy

Affiliation: Wisconsin DNR Many WWTPs subcontract out testing for parameters like metals, organics and more complex inorganic parameters. Often it feels like one needs a road map to understand these reports and determine what it is you need to know from the report to determine what in turn to report-- and how to report it-- on a DMR. This session will go through some of the tricks of the trade to translating lab reports from commercial laboratories. We will look at actual subcontract lab reports and point out the types of flags and qualifiers encountered and how to deal with them. We will also discuss things you can do to help choose the best subcontract laboratory for your needs.


Session: B Aeration

Moderator: Jerry Doriott

Room – Aliquot

10:45 AM to 11:20 AM – Fine Bubble Retrofit Does It Again

Presenter(s): Jon Butt/Todd Hammond

Affiliation: Symbiont & Grande Cheese Grande Cheese, Inc. (Grande) owns a whey processing facility in Juda, WI that has its own wastewater treatment plant discharging to the North Fork of the Juda Branch Creek. Driven by an increasing demand for food grade protein powder, Grande needed to increase production at the facility increasing the organic loading to wastewater treatment by over 120% and the nitrogen load (reported as TKN) by over 35%. Working with Symbiont, Grande replaced the jet aeration system with fine bubble diffusers in order to minimize any operational cost increases. In addition, Grande also replaced the rotary lobe PD blowers with a high speed turbo blower to further reduce operational cost increases. The results from the retrofit are:

1. The conversion from jet aeration to fine bubble diffuser reduced the operating horsepower by 50% (300 HP down to 150 HP) in spite of the higher organic load.

2. Replacing the old PD blower with a turbo blower reduced the horsepower by an approximately an additional 20%.


Session: B Aeration

Moderator: Jerry Doriott

Room – Aliquot

11:25 AM to 11:55 AM – Not Your Typical Turbo Blower

Presenter(s): Eric Lynne/Don Lintner

Affiliation: Donohue & Associates and New Holstein Utilities Detailed presentation about the blower selection, design, installation, startup, and operation of four new 50HP Inovair Gear-Driven Turbo Blowers. These blowers are new to the wastewater industry, especially in Wisconsin, and are gaining momentum. This installation provides quality feedback from the lessons learned that are beneficial to medium and smaller wastewater facilities and their operators. Electrical energy savings will be presented and comparisons made to the anticipated projections and how it compared to traditional positive displacement blowers. Justifications for variations in the energy savings will be documented. Unique and routine operational demands are also presented.


Session: C Source Control

Moderator: John Bond

Room – Biomass

10:45 AM to 11:20 AM – Proactive Approach Reduces Chloride Discharges

Presenter(s): Jim Kleinschmidt/John Szwedo

Affiliation: Baxter & Woodman Wisconsin has chronic criteria of 395 mg/L and a final acute value of 1,500 mg/L. The Village of Paddock Lake ultimate limit will be at criteria (395 mg/L). In their current WPDES permit, the Village has an interim limit of 612 mg/L from May to November and 685 mg/L from December to April. This interim limit was obtained through a variance and is their second permit variance for chlorides. Specific actions were included in the Village’s WPDES permit. The Village decided to initially focus on the following action: Require significant industrial, institutional and commercial users to evaluate their current water softening practices. The focus on significant users has paid significant dividends. The reduction in chlorides discharges for 2015 was approximately 220,000 pounds.


Session: C Source Control

Moderator: John Bond

Room – Biomass

11:25 AM to 11:55 AM – A Phosphorus Deficit? – Impacts of Soluble BOD5 & Nutrient Supply on a Municipal/Industrial Activated Sludge System

Presenter(s): Troy Larson

Affiliation: Strand & Associates A Wisconsin community and their major industries are working together to identify the trigger of and solution for settling and thickening issues experienced at the City’s Wastewater Treatment Plant (WWTP). Real time nutrient analysis and a holistic review of the system contributors allowed a prioritized understanding of the remedial actions that were then considered. Workshops with all stakeholders have allowed for a unified and staged response. This presentation would focus on the monitoring, evaluation and alternatives analysis of a project recently completed by the City and key stakeholders. During the study it was determined that the activated sludge system operated for large periods of time without sufficient phosphorus. Capital upgrades and operational adjustments were reviewed and prioritized both at the WWTP and at the various industrial facilities. This presentation will discuss:

• Microscopic evaluation • Wastewater characterizations • In-Situ phosphorus, ammonia, nitrite, and nitrate monitoring • Alternative analysis • Corrective actions


Session: D Regulatory

Moderator: Rick Mealy

Room – Rotifer

1:30 PM to 2:00 PM – Operator Cert Rules

Presenter(s): Lisa Bushby/Danielle Luke

Affiliation: Wisconsin DNR Wisconsin Administrative Code NR114: Certification Requirements for Wastewater Treatment Plant Operators was revised on July 1, 2015. This presentation will focus on common questions regarding the revision. The new advanced certification point system will be discussed and examples will be provided. The new subclasses, such as collection systems, will also be covered.




Room – Rotifer

2:05 PM to 2:40 PM – A Plain English Guide to the Statewide Multi-Discharger Phosphorus Variance

Presenter(s): Pat Morrow

Affiliation: MSA Professional Services The widely-anticipated Statewide Multi Discharger Phosphorus Variance presents a unique compliance opportunity that may be a great fit for point sources in Wisconsin. DNR Guidance documents will be reviewed, and discussion will focus on eligibility requirements, projected sewer rates, and timelines for compliance. A case study comparing the 20-year Present Value of the MDV option versus a facility upgrade will be presented.




Room – Rotifer

2:55 PM to 3:25 PM – Receiving Water Quality Credits Phase 2

Presenter(s): Dave Sauer

Affiliation: Cedar Corporation Phosphorus water quality trading is one alternative which communities can complete to achieve compliance with Wisconsin water quality based effluent limits. Non-point source phosphorus credits are available using watershed improvements such as stream bank stabilization, at grade berm structures, grass buffer strips and lake sediment removal. The City of Sparta has completed several non-point source watershed improvements and has received several pounds of phosphorus credits for this work. Information will be presented on completed projects, discussions with County land conservation resource staff and how to screen and choose sites which are good candidates for these practices. Information will also be presented that these watershed improvements are far less costly than completing wastewater treatment facility upgrades for phosphorus.




Room – Rotifer

3:30 PM to 4:00 PM – Adaptive Management/Watershed Programs

Presenter(s): Tom Steinbach

Affiliation: City of Oconomowoc The City of Oconomowoc has begun an innovative program to address phosphorus regulation being promulgated in Wisconsin and throughout the US. The City’s program titled the ‘Oconomowoc Watershed Protection Program’ (OWPP) will address point and non-point phosphorus and sediment loading to the entire Oconomowoc River Watershed through a cooperative, partnership focused plan involving public and private entities in the entire 83,000 acre area. This presentation will describe how the City evaluated its options and how it was chosen for the first Adaptive Management Program in Wisconsin, review the OWPP structure, and explain the progress made thus far in reducing phosphorus levels in the watershed.


Session: E Biosolids

Moderator: Troy Larson

Room – Aliquot

1:30 PM to 2:00 PM – Replace or Rehab Anaerobic Digesters La Crosse

Presenter(s): Mark Johnson

Affiliation: City of La Crosse Replace or rehab anaerobic digesters in La Crosse? Presentation will discuss the process to evaluate the decision to replace versus rehabilitate four anaerobic digesters and present the experience and challenges of the completed project to rehabilitate one unit so far.




Room – Aliquot

2:05 PM to 2:40 PM – Solids Handling Upgrade at NEW Water

Presenter(s): Bruce Bartel

Affiliation: NEW Water NEW Water (GBMSD) is in process of replacing all of their solids handling facilities. The name of the project is the R2E2 (Resource Recovery and Electrical Energy) Project. This will be the largest capital project in the history of NEW Water. Currently NEW Water uses gravity belt thickeners to thicken waste activated sludge and gravity thickeners to thicken primary sludge. The combined thickened sludges are then dewatered with belt filter presses prior to being fed to multiple hearth incinerators with ash as the final disposal. The new solids handling facility will consist of adding two anaerobic digesters. The gas from the digesters will be recovered and used for energy recovery using internal combustion engines. The digested sludge will be dewatered using new centrifuges. The thickened sludge from the centrifuges will be fed to a new scalping dryer. The dried sludge will be fed to a new fluid bed incinerator. The energy recovered from the new processes is projected to decrease NEW Water’s energy consumption by close to 50%. The first phase of the R2E2 Project was completed in March 2015. The second and main phase of the project began in August 2015 with an expected completion date of mid-2018. This presentation will discuss the following:

• Solids processes that were considered as part of the project. • The types and sizing of equipment being installed. • The expected benefits from the project. • Recap of phase 1 construction. • Update on current construction progress.




Room – Aliquot

2:55 PM to 4:00 PM – Biosolids Program Evaluation & Financial Model

Presenter(s): Tom Foley/Omkar Ghavi

Affiliation: Clark Dietz Clark Dietz prepared an evaluation of WalCoMet’s existing biosolids management program and options for managing biosolids in the future. We utilized a two-phased approach to develop a long-term biosolids management program for WalCoMet. This approach will allow the District to continue their current management practices while providing a solid plan to meet the changing landscape of biosolids management. Factors such as phosphorus removal processes, reduction in available agriculture land, regulations on application rates, and the need for sustainability will all impact the way the District manages biosolids in the future. Biosolids management alternatives such as land application, composting, heat drying, lime stabilization, thermophilic digestion, and thermal hydrolysis were evaluated. The key to our approach was the development of a financial model that will allow the District to determine the cost of biosolids management over time. The model includes the costs of each feasible alternative determined in the evaluation process. The model allows inputs of changing costs of alternatives over time. Plots of costs trends will allow the District to predict the optimal timeframe when a change in management practices is warranted.




Room – Aliquot

3:30 PM to 4:00 PM – A Case Study for Retrofitting Anaerobic Digestion Facilities at the City of Waukesha

Presenter(s): Travis Anderson/Jeff Harenda

Affiliation: Strand & Associates/City of Waukesha This presentation provides a case study of anaerobic digestion improvements at the Waukesha Wastewater Treatment Plant including the addition of an egg-shaped digester. This project was presented at WWOA early in construction with discussion emphasizing selection of project alternatives; this presentation will focus more on lessons learned in the construction, start-up and operation of the system. Construction of the project began in early 2014 and is anticipated to be complete in July of 2016. The digestion and dewatering facilities underwent complete rehabilitation as a part of this project. This project addresses several maintenance and operations challenges faced by plant staff due to aging infrastructure. Major components of the digestion upgrades include new mixing and heating equipment, multiple foam management strategies, a membrane gas-holder cover, and an egg-shaped digester. Topics discussed will include the following:

• Review of project drivers and discussion of digestion improvements • Construction of the egg-shaped digester and project sequencing • Review of new controls and instrumentation implemented • Operating strategies and system flexibility • Lessons learned throughout the construction phase of the project • Review of plant operational data with the new system in place


Session: F Collection System

Moderator: Jeff Simpson

Room – Biomass

1:30 PM to 2:00 PM – CS 50 Yrs Old, Now What?

Presenter(s): Tim Astfalk

Affiliation: Mead & Hunt The Town of Dunn Sanitary District No. 3 owns and maintains a sanitary sewer collection system serving a residential area along the south shore of Lake Waubesa in Dane county Wisconsin. The collection system is almost 50 years old and includes three lift stations and sections of gravity sewer within the normal high water level of Lake Waubesa. The Sanitary District recognized the need to plan for pending repair and replacement needs. An evaluation of the collection system was conducted using sewer videotaping, manhole inspections, and lift station inspections. A capital improvement plan was prepared which prioritized needed improvements and estimated costs for the improvements. An equipment replace fund was established for replacement of lift station equipment. The sanitary district has set their sewer rates to reflect the anticipated costs for the improvements.




Room – Biomass

2:05 PM to 2:40 PM – Concrete and H2S in Wetwells & Tanks

Presenter(s): James Orr

Affiliation: Dixon Engineering Participants will learn how to properly protect their wastewater infrastructure. They will learn about the costly effects of H2S gas and high strength waste corrosion on concrete surfaces in wet wells, holding tanks and digesters. Participants will learn about proper surface preparation methods for concrete. They will learn how and why low PH in concrete effects overall repair/coating performance. Participants will learn how and why some protective coating systems fail prematurely. In addition, participants will learn about soluble salts in concrete and what to do about it. The presenter will provide hands on training opportunities throughout the session. We will discuss proper coating selection, proper coating installation, proper ambient conditions, proper coating thickness and the role of high voltage holiday testing. A question and answer period of the session will follow if the participants remain interested.




Room – Biomass

2:55 PM to 3:25 PM – Lateral Lining vs. Grouting Wauwatosa

Presenter(s): Mike Blazejovshy

Affiliation: Visu Sewer An in-depth look at investigative techniques and lateral rehabilitation technology used to combat Private Property I&I issues in the City of Wauwatosa. Investigation work focused on the correlation between storm sewer exfiltration and infiltration into the sanitary system. Rain simulation and storm sewer dye flooding were used in combination with mainline and lateral televising to determine the highest priority locations and best approach for rehabilitation. A multi-phase pilot program was then launched to determine the cost and benefit of the various lateral lining and lateral grouting approaches commonly available to the sewer industry. After multiple iterations and continuous flow monitoring, the City of Wauwatosa developed a sustainable plan to roll out in a City-wide program to reduce infiltration in their sanitary system.




Room – Biomass

3:30 PM to 4:00 PM – Case Study in Sustainability Madison MSD Pump Station #18

Presenter(s): Bryan Lewis

Affiliation: AECOM Madison MSD needed a long term solution for managing wastewater from the district’s northeast service area. Many communities rely on this service with a current daily wet weather flow of 45 MGD conveyed to and treated at the district’s Nine Springs WWTP. Madison MSD addressed capacity and redundancy concerns working with AECOM for design and during construction of Pump Station 18 (PS 18). Trenchless technology design and micro-tunneling construction methods were used for the associated, new, relief interceptor and bypass sewers crossing major traffic corridors and environmentally-sensitive lands. Sustainable building practices, such as a “green” roof system, minimize operating costs through HVAC energy conservation and recovery. Odor control systems minimize environmental impacts. PS 18 is fully automated and provides functionality to split total tributary flow with existing PS 7 while maintaining the capability of diverting all flow to either station.

WWOA TECHNICAL PROGRAM SCHEDULE Thursday, October 13, 2016

CECs: 6.5 Wastewater, 2.5 Waterworks, 6.5 General Septage

Exhibits 8:00 a.m. – 11:45 p.m. in Arena/North Hall / Plant or Kwik Trip Dairy Tours 1:30 p.m. - 4:00 p.m. Front of La Crosse Center by South Hall

Time

Session G: Phosphorus Moderator: Gary Hanson Room: Rotifer

Session H: Pretreatment Moderator: Kris August Room: Aliquot

Session I: Economics Moderator: Mark Kane Room: Biomass

8:00 – 8:45

What, How and Why Fractions of P

Greg Paul

Managing Your FOG Producers

Rick Allen

Energy Savings With Air Valves

D. Kim Sorenson

8:50 – 9:35

Spray & Sub-surface Effluent Irrigation as Treatment

Strategy Bart Sexton

Cost of Clean 20 Yrs of Sewer Charge Trends in WI

Tom Fitzwilliams

Break: Exhibit Area 9:35 a.m. - 10:00 a.m. in Arena/North Hall

Time

Session J: Phosphorus Moderator: Jeff Smudde Room: Rotifer

Session K: SCADA Moderator: Kris Gauger Room: Aliquot

Session L: Laboratory Moderator: Kelly Zimmer Room: Biomass

10:00 – 10:50

The Phosphorus Journey – One Plant’s Story

Dave Arnott

Treatment Facility Performance Optimization Using Automatic Control &

Online Monitoring BulBul Ahmed

Working With Your Certified Lab

Jean Bernius

10:55 – 11:45

Convert Activated Sludge to BPR

Greg Paul, Ben Brooks

SCADA/PLC Latest Technology System Control &

Reporting

Jared Greeno, Mark Kane

Basic Lab Technologies for the 21

st Century NCL

Mike Raynovich

Operators Luncheon – 12:00 p.m. / Business Meeting – 12:30 p.m. – South Hall Ballroom A & B

Time Session M: Nutrients Moderator: Jim Johnson Room: Rotifer

Session N: Lagoons Moderator: Don Lintner Room: Aliquot

Session O: Poop-er-ee Moderator: Sharon Thieszen Room: Biomass

1:30 – 2:15

BNR at the Danbury SBR WWTP

Jerry Doriott

Cold Weather Nitrification/ Denitrification in Lagoons

Marc Salmi

Operator Tips & Tricks

2:20 – 3:05

Push It To The Limit LL Phosphorus Pilot at

Fond du Lac Nick Bartolerio, Jane Carlson Lagoon Management

Rick Allen

“Disposable” Wipes Pump Clogging & Odor City of

Marshfield Gene Laschinger, Sam Warp

3:15 – 4:00

Bio P: Process & Considerations

Ben Heidemann

What Can I Possibly Do With This Oversized Aeration System

Wendy Raisbeck

Social Hour – 6:00 p.m. Upper South Hall Awards Banquet/Entertainment – 7:00 p.m. Upper South Hall Ballrooms A-B-C

Thursday, October 13

Session: G Phosphorus

Moderator: Gary Hanson

Room – Rotifer

8:00 AM to 8:45 AM – What, How and Why Fractions of P

Presenter(s): Greg Paul

Affiliation: Op2Myz, LLC As operators evaluate their options for compliance with lower effluent phosphorus limits we scratch our heads and wonder how. One helpful tool in sorting out your treatment plant’s ability to meet the limit is to become familiar with the different forms or fractions of phosphorus. What fractions are we talking about? The presentation will go through each of the fractions How do you ID the fractions of P? The general procedures for analyzing or calculating them will be covered. Why do I need to know about the fractions of P? There are some fractions which are very difficult to remove chemically or biologically. Once you know the fractions of P in your system what do you do with it? Knowing the fractions will help you understand what the best treatment options are available to reduce it. The presentation will share examples of what some treatment plants are seeing in their system. There is much more to learn and know on this subject. This area of knowledge is important and still growing. Operators, engineers and researchers are still in the process of becoming familiar with the subject.


Session: G Phosphorus

Moderator: Gary Hanson

Room – Rotifer

8:50 AM to 9:35 AM – Spray & Sub-surface Effluent Irrigation as Treatment Strategy

Presenter(s): Bart Sexton

Affiliation: Sand Creek Consultants, Inc. Increasingly surface water discharges are coming under greater scrutiny and regulation. Currently, phosphorus, lead and copper are priorities, but regulation of nitrogen and pharmaceuticals in effluent appear likely to come under additional regulation in the next decade. An alternative to surface water discharge to consider is irrigation of effluent. By land applying effluent several additional treatments are afforded via plant uptake, soil microbes and soil chemical and physical properties. Irrigation is most easily enacted for current fill and draw systems, but subsurface irrigation can open the potential for year ‘round applications as well. Land availability and soil limiting factors will be discussed.


Session: H Pretreatment

Moderator: Kris August

Room – Aliquot

8:00 AM to 9:35 AM – Managing Your FOG Producers

Presenter(s): Rick Allen

Affiliation: Bio-Lynceus Fats, Oils, and Grease hits municipalities operational and maintenance budgets. Working directly with the producers can help off-set some of these expenses. In Managing Your FOG Producers, Rick Allen brings forth educational information on ways attendees can address this critical issue in their system. Rick Allen will discuss; why FOG happens, why it is more prevalent in wastewater systems today and many cost effective methods of removal. During this presentation attendees will learn about conventional methods of removal and control, along with new and innovative solutions to mitigate the problem. This program will address ways to work with your FOG Producers to implement Best Management Practices. Within these operational challenges, Rick will discuss some of the new emerging technologies to address FOG and what your organization needs to know. Educational case studies and long-term Operational and Maintenance information will be discussed to provide ways to get your FOG Producers helping to eliminate what they are releasing into systems. Rick has been in the ranks of educators helping to inform on pre-treatment protocols and suggestions for how to go about getting a program in place for FOG. Now he is taking his knowledge to the next level to help attendees get with the program with some innovative ideas on small steps and bit approaches that will be needed whether the organization has a jetter truck, requires grease trap maintenance, or just wants to understand the cost of FOG in their communities.


Session: I Economics

Moderator: Mark Kane

Room – Biomass

8:00 AM to 8:45 AM – Energy Savings with Air Valves

Presenter(s): D. Kim Sorenson

Affiliation: ARI USA It is estimated that air in pipelines results in a minimum of 10% increase in pumping costs – purely from the air pockets present in virtually every pumping/pipeline. The Energy Star Program of the EPA estimates that about $4Billion is spent annually in the US alone for energy costs to run drinking water and wastewater utilities. If the sector could reduce energy use by just 10% through investments in energy efficiency collectively it would save about $400 million annually. Properly applied and installed air valves have been proven to reduce energy costs by an average of 10%, as pump run times are decreased, and the energy required to pump the same volume of water/wastewater is reduced as the air is evacuated.


Session: I Economics

Moderator: Mark Kane

Room – Biomass

8:50 AM to 9:35 AM – Cost of Clean 20 Yrs of Sewer Charge Trends in Wisconsin

Presenter(s): Tom Fitzwilliams

Affiliation: MSA Professional Services What’s the true cost of safe and reliable wastewater treatment? This presentation will answer that question by providing a historical review of sewer user charges in Wisconsin over the past 20 years. The presentation will reveal results of the eighth survey report, with sewer service data gathered in January 2016. This year’s report will document the cost of sanitary sewer service in Wisconsin and provide communities with the ability to compare their current and proposed sewer rates with the rates of similarly-sized communities. With access to this information, communities are empowered to make the best decisions for a healthy and sustainable future. The new data will be compared to data collected since 1996. The data is used to illustrate the major factors impacting sewer rates, and will help the public understand why sewer rates can be vastly different in two neighboring communities. The research over the past two decades illustrates and provides reasons for the disparity in rates between residents of small communities versus those of large communities.


Session: J Phosphorus

Moderator: Jeff Smudde

Room – Rotifer

10:00 AM to 10:50 AM – The Phosphorus Journey – One Plant’s Story

Presenter(s): Dave Arnott

Affiliation: Ruekert & Mielke Inc. The City of Hartford, Wisconsin Water Pollution Control Facility (WPCF) received its Wisconsin Pollutant Discharge Elimination System (WPDES) permit renewal in July of 2012. The permit was one of the first in Wisconsin to include a phosphorus compliance schedule. In response to the phosphorus compliance schedule in its new permit, the City took an aggressive approach to consider all alternatives. This presentation will include a description and results of preliminary studies where the City considered the following compliance alternatives: site specific criteria, adaptive management, nutrient trading, consolidation with another nearby treatment facility and facility upgrades. The results of the phosphorus facilities plan will also be summarized.


Session: J Phosphorus

Moderator: Jeff Smudde

Room – Rotifer

10:55 AM to 11:45 AM – Convert Activated Sludge to BPR

Presenter(s): Greg Paul/Ben Brooks

Affiliation: Op2Myz, LLC/City of Medford Medford WWTP was originally designed as a chemical phosphorus removal facility. Plant staff converted the activated sludge system to AO Biological Phosphorus removal by reducing the air flow rate into the first two of five aeration basins, providing just enough energy for mixing. Prior to the trial, the average effluent TP was 0.70 ppm using 60-80 gpd ferric chloride. Ferric Chloride addition feed point is located between the aeration basin and final clarifiers. Eight months into the trial the plant was achieving TP levels between 0.1 and 0.2 ppm. The average ferric chloride feed rate during this trail period was 9 gpd. Future plans include changing the existing coarse air mixing to mechanical mixing to create an optimal anaerobic zone.


Session: K SCADA

Moderator: Kris Gauger

Room – Aliquot

10:00 AM to 10:50 AM – Treatment Facility Performance Optimization Using Automatic Control and Online Monitoring

Presenter(s): BulBul Ahmed

Affiliation: Sanitaire To reduce operational expenses and operator labor, Black River Falls, WI wastewater treatment plant implemented OSCAR® automatic process control and YSI online monitoring systems to automatically control air delivery, solids wasting and chemical feed for phosphorus removal. The aeration control system reduced energy consumption on average 10-15 % compared to manual blower operation. The solids inventory management system controlled wasting to maintain operator desired SRT of 14 (13.57 ± 0.13) days or MLSS concentration of 2100 (2,066 ± 54) mg/L. The automatic process control system also automatically maintained chemical dosing rate based on the real time effluent orthophosphate concentration and maintained desired effluent TP concentration of less than 1.0 mg/l. With the implementation of automation, this plant reduced FeCl3 usage approximately 50% in 2015 and was able to completely eliminate caustic dosing. The chemical savings paid for the cost of the control system in a matter of months.


Session: K SCADA

Moderator: Kris Gauger

Room – Aliquot

10:55 AM to 11:45 AM – SCADA/PLC Latest Technology System Control & Reporting

Presenter(s): Jared Greeno/Mark Kane

Affiliation: City of La Crosse/ LW Allen SCADA is a valuable tool for any WWTP for process, control and reporting. The City of La Crosse WWTP first became automated around the year 2000. As years pass and technology advances to keep the system reliable its import that equipment and software stay compatible. It’s just as important to maintain your SCADA system as it is your pumps. Reliable SCADA systems control pump and other process this then reflects quality of your effluent and becomes part of reportable data to DNR. In 2014 and 2015 La Crosse installed the latest software and PLC’s to have latest technology to control plant and reporting. Project was a joint effort between WWTP and 2 integrators.


Session: L Laboratory

Moderator: Kelly Zimmer

Room – Biomass

10:00 AM to 10:50 AM – Working With Your Certified Lab

Presenter(s): Jean Bernius

Affiliation: AgSource Laboratories If you are not going to do all your WPDES permit testing by yourself, you need to partner with a certified laboratory. How can labs and treatment plants work together to make this partnership work? Jean offers tips, hints and war stories about sampling correctly, paperwork and reading your laboratory report.


Session: L Laboratory

Moderator: Kelly Zimmer

Room – Biomass

10:55 AM to 11:45 AM – Basic Lab Techniques for the 21st Century NCL

Presenter(s): Mike Raynovic

Affiliation: North Central Laboratories Today’s lower limits have brought forth new equipment with greater accuracy and lower Limits of Detection. In order to attain these however, the technician needs to do his or her part in preparation of standards and calibration technique. This includes using the correct glassware and procedures to prepare standards. For spectrophotometers, we will discuss optical qualities of glassware, calibration technique, blank correction as well as the effected of time and temperature.


Session: M Nutrients

Moderator: Jim Johnson

Room: Rotifer

1:30 PM to 2:15 PM – BNR at the Danbury SBR WWTP

Presenter(s): Jerry Doriott

Affiliation: SEH A new Sequencing Batch Reactor (SBR) was constructed in 2009 for the Danbury community to provide wastewater treatment. Discharge from the WWTP is to seepage cells. BNR in the SBR occurs to meet the effluent limits. Presentation will summarize the operation of the system. Influent, effluent, the daily process testing, and quarterly groundwater monitor well test results will be discussed. Conclusion will show how the continuous flow SBR meets the requirements for nitrogen removal.




Room: Rotifer

2:20 PM to 3:05 PM – Push It to the Limit LL Phosphorus Pilot at Fond du Lac

Presenter(s): Nick Bartolerio/Jane Carlson

Affiliation: Strand & Associates The City of Fond du Lac Water Pollution Control Plant (WPCP) is currently exploring alternatives for meeting a total phosphorus water quality based effluent limit potentially as low as 0.04 mg/L. To evaluate how various technologies could contribute to future TP permit compliance, the City has recently conducted several pilot studies at the WPCP. These studies include:

1. The CoMag® ballasted settling system 2. The ACTIFLO® ballasted settling system. 3. The Ovivo TriSep membrane Tertiary Filtration System 4. The Aqua-Aerobic Systems, Inc. cloth disk and membrane filtration systems 5. The AirPrexTM struvite recovery system.

Summaries of these pilot studies and their results will be discussed in this presentation. The data gathered from these studies will help determine the most cost-effective approach for phosphorus compliance at the WPCP and will inform other communities facing similar challenges with future phosphorus permit limits.




Room: Rotifer

3:15 PM to 4:00 PM – Bio P: Process & Considerations

Presenter(s): Ben Heidemann

Affiliation: Town & Country Engineering This presentation will review the processes involved with biological phosphorus removal, discuss operational considerations for biological phosphorus removal systems, and describe items to consider when evaluating biological phosphorus removal. Design and operational considerations will be put into real world context of actual WWTP case studies and operational improvements.


Session: N Lagoons

Moderator: Don Lintner

Room: Aliquot

1:30 PM to 2:15 PM – Cold Weather Nitrification/Denitrification in Lagoons

Presenter(s): Marc Salmi

Affiliation: Environmental Dynamics Lagoons and lagoon-based treatment systems have evolved quickly over the past decade to keep up with more stringent effluent requirements; particularly ammonia. However, they remain a treatment process of choice for many thousands of communities throughout the United States and the State of Wisconsin for their simplicity and cost-effectiveness. This discussion will define specific challenges faced by lagoon-based treatment systems including biomass concentration, SRT, and temperature. Requirements for nitrification, including what it is and the process requirements to achieve total nitrogen removal, will be reviewed. Technologies common to the market will be discussed, along with their approach on how to create conditions that allow advanced treatment and nutrient removal. The session will conclude with a case studies, long-term data reviews, and field observations of advanced treatment lagoons including nutrient rebound from holding ponds at process water temperatures under 5C.


Session: N Lagoons

Moderator: Don Lintner

Room: Aliquot

2:20 PM to 4:00 PM – Lagoon Management

Presenter(s): Rick Allen

Affiliation: Bio-Lynceus

In Lagoon Management, operators learn the importance of managing for lagoon efficiency to optimize the efficiency of collections and plant operations. Wastewater Lagoon Management provides recommendations for managing sludge, chemical and biological influences, technologies and opportunities to manage efficient wastewater systems and meet discharge requirements. Lagoon management covers the need to properly manage wastewater lagoons for optimal efficiency. Topics include using traditional methods of design & technologies to meet NPDES permits. Discussion about problems with meeting permits including ways to improve the overall efficiency of the lagoon for improved DO, TSS, BOD, AN, Ph and Phosphorous are covered. The attendees will learn what short circuits lagoon systems and how to address common problems. Discussion on managing sludge to improve digestion is covered. Examination of the influences on lagoons and ways to improve the digestive operations of the lagoon system are covered. Case studies are utilized as examples of how operators are using technology and lagoon management strategies to solve problems that are impacting the efficiency of lagoon systems. Analytical examples are used to demonstrate reduction in bio-solids, BOD, TSS, PH, and AN. Additional topics include how to use traditional mechanical and biological solutions for managing algae, weeds, E. Coli and pathogens in lagoon systems. Future concerns related to the measurement of pharmaceuticals and other contaminants are covered to help operators understand the impact of upcoming regulatory issues related to system management. Recommendations for managing chemicals, microbiology, current resources and technologies with the goal of creating a more balanced lagoon system are part of the solutions provided for professionals attending Wastewater Lagoon Management.


Session: O Poop-er-ee

Moderator: Sharon Thieszen

Room: Biomass

1:30 PM to 2:15 PM – Operator Tips & Tricks




Room: Biomass

2:20 PM to 3:05 PM – “Disposable” Wipes Pump Clogging & Odor City of Marshfield

Presenter: Gene Laschinger/Sam Warp

Affiliation: Town & Country Engineering and Marshfield Wastewater Facility The City of Marshfield’s Northeast Lift Station was experiencing weekly and sometimes daily pump plugging mainly due to disposable wipes. The 5,000gpm Lift Station handles the major portion of the north side of the City. The City was originally going to install a vertical screen to address the problem. After a thorough investigation of the problem, analyzing different alternatives, a solution was developed that not only solved the plugging problems but also addressed continued maintenance on the pumps, reduced the H2S in the system and improved efficiency of the system. The City of Marshfield issued an RFP to design and install a screen at the City’s 5,000 gpm Northeast Lift Station. This lift station pumps the majority of the north side of the City to a 36-inch interceptor. The lift station was experiencing weekly and sometimes daily pump plugging. This was mainly due to disposable wipes. The wetwell experienced severe grease and rag surface buildup which contributed to the plugging problem. (See photo of the rag pile) The facility also had problems with the extended pump shaft bearings being replaced on an annual basis. The pump motors are located on upper level, and the lift station is approximately 45 feet deep. The collection system experienced severe corrosion at the discharge of the 20-inch force main to a point where a 36-inch interceptor had to be re-lined several years ago (the discharge also had odor issues). Town & Country Engineering suggested an alternate approach when a proposal for the screen was submitted. Town & Country Engineering was hired to implement the screen and to look at the alternate approach. There were several meetings between the City’s engineering department, the superintendent of the wastewater facilities, facility operators, and Town & Country Engineering. Based on the staff’s input the following solution was developed instead of installing a screen:

1. The system consisted of four 2,700 gpm pumps with one VFD drive rotating between pumps. It was recommended installing two new pumps that are more adaptable for passing the rags and moving the two existing motors to the second level to minimize shaft bearing problems.

2. It was recommended installing new incoming power, MCCs and a control system. The new control system would operate on a matrix timing system so all pumps would operate for a set period of time to minimize plugging. All four pumps would be in the rotation, rather than operating one. The water level control system would use a ramp control rather than maintaining a fix water level.

3. The flow normally would go directly to a manual bar screen which required cleaning once or more times per day. It was recommended changing the flow to direct discharge into the wetwell to allow breakup of the surface, operating at lower wetwell water level, and always pumping the wetwell down when the pump was at the end of an operating cycle.

4. It was recommended to provide a flushing cycle to keep force main solids from settling out and minimize hydrogen sulfide generation. Since the project was completed, hydrogen sulfide monitoring shows reduction of sulfide concentrations at the discharge manhole, which will significantly reduce corrosion.

5. It was recommended upgrading the lift station’s SCADA control system. As result of these improvements, the wastewater treatment facility is presently replacing the entire SCADA system on the 30 MGD facility.

Since the facility has started up, the pumps have not plugged. They have experienced all four pumps running, pumping a full flow of over 6,000 gpm during rainstorm events, and the system has operated very successfully.




Room: Biomass

3:15 PM to 4:00 PM – What Can I Possibly Do With This Oversized Aeration System

Presenter: Wendy Raisbeck

Affiliation: Donohue & Associates

The City of Brookfield’s existing blower system was designed when the plant had course bubble activated sludge aeration diffusers. Upgrades in the late 1990s converted the aeration basins to fine bubble diffusers and added a post aeration process that was tied into the existing blower system. This left the multistage centrifugal blowers, aeration headers, and aeration flow control valves significantly oversized. Due to oversized equipment and the little ability to control the aeration, the City was significantly over aerating the Aeration Basins and using significantly more energy than required. An evaluation of various diffuser types, blower sizes, and post-aeration strategies was performed to provide a long-term strategy based on energy efficiency, control system robustness, and process performance. A summary of the selected upgrades are as follows: the ceramic diffusers were replaced with Teflon coated EDPM diffusers, one of the multistage centrifugal blowers was replaced with a properly sized high-speed turbocompressor, the oversized aeration flow control valves were replaced with properly sized aeration flow control valves, and the post aeration process remained connected to the aeration blowers but the location of the DO probe was moved so additional aeration is not typically required. The City will be able to significantly reduce energy usage from the aeration system. Because of these energy savings, Focus on Energy granted the City a significant grant for this project. The presentation will focus on the evaluation process and describe operations after the project was completed.

WWOA TECHNICAL PROGRAM SCHEDULE Friday, October 14, 2016

CECs: 1.0 Wastewater, 1 hr. Municipal Waterworks, 1.0 General Septage

Operators Farewell Breakfast – Radisson Hotel Ballrooms A & B 8:30 a.m. – 10:30 a.m.

Moderator: WWOA President Sharon Thieszen

Presenter: Paul Kent

New Development in Water and Wastewater Regulation: What’s Next

Conference Concluded

North Hall & Arena

SOUTH HALL—OPERATOR BUSINESS LUNCH/ANNUAL MEETING and AWARDS BANQUET

Documents

50th Annual Wastewater Operators’ Association Conference WWOA Abstra… · 50th Annual Wastewater Operators’ Association Conference ... Registration Booth – North Hall Entrance