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7/30/2019 Sludge and Grit Removal Solutions
http://slidepdf.com/reader/full/sludge-and-grit-removal-solutions 1/20
TUMWATER inc.Fadi Kassir
Fadi Kassir, Cell (614) 790-0069, Email
[email protected] Post Office Box 20025, Seattle,
Market disruptive, stepchange.
“CleanTech Now”
Integrated solutions to treatand/or prevent sludge and gritaccumulation in Wastewater
Treatment Plants and SurfaceLagoons
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• New small and medium scale cost-effective “next-gen”technologies have become available but these often require moreexamples, proof of life and precedents before they are generallyaccepted.
• TUMWATER is a collaborative alliance for newly launched
technology companies to cooperate on a substantial level toprovide integrated solutions for the delivery of equipment andservices to general industry and to sustainable communities.
• TUMWATER Triple MMO™ Platform is being built to providecomplete integration of alliance partners technologies, productsand solutions offering (marketing, process simulations,economical and treatment performance projections).
• The TripleMMO™ interface caters to practitioners and will providethem access to configure manageable and affordable integrated
solution options to select, approve, fund, and execute at scalerenovation projects or new equipment installations.
TUMWATER Introduction
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TUMWATER Introduction - Continued
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Surface Ponds and Lagoons
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Secondary and Tertiary Lagoons
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In-situ Biodegradation Test – A Case Study
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Destratification - Geyser Inertia Pump (GIP)
Less Air for Destratification than Aeration
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Artificial Stream – Comparison of Three Pump Types
Pump Power
Mechanical Pump 11 KW
Airlift Pump 7.5 KW
Geyser Inertia Pump 3.0 KW
Pumping Rate 3000 GPM
Submergence 15 feet
Lift 0.5 feet
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Compare these Pumps
Airlift (AP) ↔ Pulse Pump (GPP) ↔ Ejection Pump (GEP)
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Surface Lagoons Pump Out – Discharge with Disinfection
Step
Plan View
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Surface Lagoons Pump Out – Discharge with Disinfection
Step
Side View
G L
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Geyser Mixing System IGeyser Large
Bubble Mixer
Header System
with 6 Outlets
Also offered as single large
bubble generator without theheader
Water Jet Covers Tank Periphery
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Geyser Mixing System II
Geyser Large Bubble Mixer
Header System with 6 Outlets
Water Jet Header with Holes
to Lift Settled solids in Hard
to Reach Corners
Water Jet Covers Tank Periphery
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Geyser Mixing System II
InstallationLayout
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Solution Economics – Geyser Pulse Mixing System vs Mechanical
Mixers
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Classifier ejects grit to totes
Existing headers, reused for fast
Removed grit
increased from1/16” to 1/8”
(8) 4” Hybrid Pumps
Carrolton WWTP, GA (9 MGD) – After Retrofit
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Capacity =100,000 GPD Submergence = 10 feet Lift = 3 feet
Air Flow for Aeration [CFM]
Blower [HP]
4” Pulse Pump4” Airlift Pump
60
Electricity Cost for Aeration [$/year]
Air Flow for Sludge Thickening [CFM]
3.5
3,429
30
Blower [HP] 1.5
Electricity Cost for Sludge Thickening [$/year]1,470
Labor Unit Cost [$/hr] 30
Maintenance Period [hr/day] 1.5
Labor Cost [$/year] 16,425
TOTAL COST[$/year]
21,324
6
0.3
294
6
0.3
30
0.3
3,285
3,873
294
Conventional Airlift Pump vs. Geyser Pulse Pump
Better Pumping, Lower Energy Requirements
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Problems•Uneven flows (Flow Equalization and Recirculation forBNR)•Carbon starvation in bio-nutrient removal (BNR)•High energy consumption (Aeration)•Segregation/ Channeling/ Frequent shut downs•Grit Trapping/ Sludge Accumulation/ Reduction of capacity
Solutions
•Adjusted Flow Equalization and Recirculation rates•Eliminated grit and sludge build-up in all tanks/basins•Improved sludge mixing in anoxic zones, and in aerationprocess basins/tanks•Enhanced aeration efficiencies, better pumps and mixers
Integrated Technical Solutions – Additional Applications
S
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Geyser reduces electricity consumption, ascompared to:
•Submersible Pump
•Centrifugal Pump
•Airlift Pump
No maintenance
No cleaningNo clogging
Easy to control pumping rate
Easy to monitor pumping rate
Summary
Hard to Beat Service OpportunitiesReplace Rotating Equipment with Geyser Pulse Pumps and
Mixers
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