Ympäristömittauspäivät 2015

ValmetWastewater Applications

Product Manager Heli Karaila Valmet

Valmet

Valmet has over 200 years of industrial history

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1942Rauma-Raahe

1951Valmet

1968-1996Several M&As i.e.1986 KMW1987 Wärtsilä paper finishing machinery1992 Tampella Papertech

1999Metso createdthrough merger ofValmet and Rauma

Key acquisitions2000 Beloit Technology2006 Kvaerner Pulping Kvaerner Power2009 Tamfelt

End of 2013Demerger toValmet and Metso

1797 Tamfelt1841 Götaverken1856 Tampella1858 Beloit1860 KMW1868 Sunds

Defibrator

2015Metso ProcessAutomation Systemsto Valmet

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Orders receivedEUR 3,400 millionNet SalesEUR 2,800 millionEmployees 12,000

Market position#1-2 Services#1-2 Pulp#1-3 Energy#1-2 Paper, board, tissue#1-3 Pulp and paper

automation

Based on combined figures from 2014

Sales bybusiness line

ServicesPulp and EnergyPaperAutomation

Sales bygeographic area

Unique offering covers process technology,automation and services

Valmet develops and suppliesadvanced technologies, automationsolutions and services

We combine pulp, paper and energytechnology, process know-how andautomation

Enabling innovative product and servicedevelopmentIncreasing competitiveness

Full scope offering differentiatesValmet from its competitors

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Customer

Services Automation

Process technology

Valmet AutomationProven performance from a trusted partner

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Valmet has delivered more than4,500 automation systems40,000 analyzers and measurements

Over 1,000 power plants worldwide utilizeprocess automation

Valmet is#1 in QCS, analyzers and measurements#1 in pulp performance optimization using advancedcontrols.#3 in pulp & paper control systems

Niche leader in Bio and Waste-to-Energy power plantautomation

Our presence today

1600+ Personnel

30+ Countries

55+ Automation ServiceHubs

Continued commitment to moving our

1980s 1990s 2010 2014 2015 2016

Automation foundationDamatic ClassicDamatic XDDamatic XdiPaperIQKajaani anazyzers

Metso DNA (nowValmet DNA)Integrated conditionmonitoringTurbomachinerycontrolsVirtualizationCompact controllersHigh-densityMetso IQ (nowValmet IQ)IQ FiberImage-basedsensors

New MD & CDControlsNew IQ ProfileractuatorsIQ Induction ProfilerNext gen WebInspection systemsRotaryOC, LCLS, Alkali RMR Moisture, FS5KappaQCCorroredAlkali C

Introducing the next levelin automation

Valmet DNA growth storycontinuesValmet IQ family furtherstrengthenedAnalyzer and measurementportfolio will grow evenstronger

Industry leading offering

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Valmet Wastewater applications

Cost efficient andfit-for-purposesolutions

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We have recognizedopportunities for ourcompetences in demandingwastewater measurementapplicationsDeveloping Wastewater sectorcreates attractive businessopportunity for usWith advanced applications wecan provide the customers with:

Cost savingsIncreased capacityProcess efficiencyIncreased process performance

Wastewater opportunities

Our aim is to be the preferred supplier of waste-water measurements and processperformance solutions

Wastewater Process / Sludge measurements

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Valmet Automation offering to the waste water

Valmet Total Solids Transmitter; Valmet TSValmet Low Solids Measurement; Valmet LSValmet SDO , Sludge Dewatering OptimizerValmet Conductivity Measurement productsValmet DNA automation system

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Valmet Automation offering to the waste water

Valmet Total Solids Transmitter; Valmet TSValmet Low Solids Measurement; Valmet LSValmet SDO , Sludge Dewatering OptimizerValmet Conductivity Measurement productsValmet DNA automation system

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,

Valmet LS and SDOResearch phasedonein MMEA

Sludge / Solids researchcontinues

Valmet TS -Total Solids measurementA microwave measurement principleSensor type and sizes:

Standard model PN16 /232 psiSizes: DN50, DN80, DN100, DN150, DN200, DN250, DN300

High pressure model PN 100/1450 psiSizes: DN100, DN150, DN 200

Measurement range: 0 - 40 TS%organic and inorganic materials

Sensitivity: 0.001 TS%Repeatability: 0.01 TS%Enclose class: IP65ATEX certification NEW !

Certificate No. VTT 12 ATEX 058X II 3G Ex nR IIC T6 GcArea classification : Zone 2For biogas / biofuel applications, where flammablegases ( e.g methane ) could exists.

Communication4-20mA + HART® Total Solids4-20 mA Process temp. /-ConductivityProfibus PA

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Valmet TS measurement principle

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Valmet TS measures the time of flight of a microwave signal in the sludge

Microwavedelay time

(ps)

Total solids (%)

Valmet LS

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system that really works in

Customer statement

Total suspended solids 0-5000 mg/lSpecially developed to centrateapplicationEntrained air index, helps inindentifying polymer overdosingRobust to impurities with optimumoptical properties

Total suspended solids measurement

Waste water treatment plan overview

©Valmet

Waste water treatment process

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Valmet LS flow path

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After sample valve (1) the sample flowsto dearation vessel (2) where it isdeaerated and any debris is screenedout. The sample is then pumped (3) tothe optical unit and measured (4).Finally the sample flows to thelaboratory sampling point (5).

The unit has an automatic weak acidcleaning cycle, with programmableinterval timing, that backflushes theunit to clean the optics (6).

All parameters can be set and theresults monitored with a local userinterface (7).

1.

6.

2.

4.

3.

8 14 l/min

8-14 l/min

7.

10m cable

©Valmet

Strong measurement cell2 light sources, 6 signals

Absorption, back-scattering and depolarization signals

Optical measurementfrom the technology leader

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Led nir

Ledvis

Lednir/Ledvis ref.

Polarizer

Spiegel

Probe

BS

LinseSpiegel

Polarizer

Valmet LS

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Constant and continuous sampleflow by using the centrifugalpumpSample is deaerated andcontaminants screened beforeentering the measurement cellAutomatic cleaning

Always includes: measurement cell,sample lines and screens are cleanedautomatically, at configurable intervalsbased on real cleaning need.Automatic cleaning chemical addition(low concentration acid) atconfigurable intervals, independent ofnormal cleaning/flushing

Advanced self diagnosticNo measurement drift - light sourcesinside the measurement cell are re-calibrated using the clean flushingwaterDiagnostics alert if dirt accumulatingin measurement cell begins to affectTSS measurement

Two LED light sources measureabsorption / scattering /depolarization as light passesthrough the centrate critical foraccurate TSS!

Turnkey measurement system based on 20 years of experience

Valmet SDO

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Valmet SDO

Sludge dewatering control application

Centrifuge: Removes solids from water by way of centrifugal force.The Dry Cake target value varies but usually cake solids are in the12 35% range. It is important that the Dry Cake TS % is as high aspossible in order the transport costs and incineration costs areoptimizedReject water / Centrate TSS needs to be minimized in order thematerial is not circulating inside the plant and cause polymer anddewatering costs .The centrifuge controllablevariables are

Differential speed of centrifuge, torquePolymer dosing

Centrifuge depended items are max massflow, sludge consistencyand volumetric flow to the centrifuge

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Centrate TSS Dry Cake TS interactions- MPC technology needed

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Centrate TSS

Dry Cake TS

Manipulated variables

Difficult to control with separate loops

©Valmet

Polymer Torque

ValmetWastewaterapplications

Application Review

Laboratory measurement is not enough

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0

1000

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5000

6000

30.11.10 0:00 5.12.10 0:00 10.12.10 0:00 15.12.10 0:00 20.12.10 0:00 25.12.10 0:00 30.12.10 0:00

Mittari Labra

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500

1000

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19:12 0:00 4:48 9:36 14:24 19:12 0:00

Mittari Labra

Quality control ofcentrate waterbased on infrequentlytaken lab samplesis not adequate

Lab sample representscentrate quality at thatspecific moment:- After a half an hourthe situation can becompletely different!

mg/l

mg/l

Valmet LS Laboratory

Valmet LS Laboratory

©Valmet

Fieldresults

superior solid measurements

Valmet Total SolidsValmet TS (0-40% )

Valmet Low SolidsValmet LS (0-5000 mg/l)

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Fieldresults

40% reduction in polymerViikinmäki WWTP, Finland

Automatic control: Polymerdosage is managed on the basisof centrate quality within givenlimits

Two measurements: feed forwardand centrate

Improved centrifuge performanceand reduced polymer

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0

500

1 000

1 500

2 000

2 500

3 000

21.1. 22.1. 23.1. 24.1. 25.1. 26.1. 27.1.0,0

2,0

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10,0

TS-kuorma LINKO 4. REJEKTI SS Polymeeri

Manual control

Automatic control

--- sludge to drying --- polymer --- total suspented solids

Fieldresults

Reduction in centrate, improved dry cakeCity of Oulu

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18,5

19

19,5

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21,5

0

500

1000

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3500Centrate, Dry Cake

Centrate_TSS(mg/l)Dry Cake_TS(%)

Centrate TSS reduction from 2000 mg/l ->500 mg/lDry Cake TS improvement from 20.25 % ->21.25%

Control toauto mode

Fieldresults

Fieldresults

Sludge / Solidsdevelopment continuesexample MoFiResearch

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MOFIAutomated floc imaging device

Sludge is taken from the process lineinto deairing container

From the container the sample isdiluted and pumped through cuvette ofimaging unit

Imaging unit consists of standardmachine vision camera and LEDlighting

The sample dilution, pumping, imagegrabbing and cuvette flushing iscontrolled by PC software and controlelectronics

Floc images are then analyzed andseveral morphological features, suchas floc diameter, area aspect ratio, arecalculated in floc analysis

Reliable measurements -> Control, Optimization> performance increase and savings

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