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McMaster Innovation Park114A-175 Longwood Road South
Hamilton, ON L8P 0A1Canada
Brazil Water and Wastewater Mission to Ontario
Dynamic Process Modeling and Simulation
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Who are we?
EnviroSim ActivitiesProducts - development & worldwide sales
BioWin – municipal wastewater modeling and simulation
PetWin+ – petrochemical effluent modeling and simulation
BW Controller
People Development
BioWin and PetWin+ Training
Workshops & Seminars
Professional Services
Model Based Consulting
Wastewater Characterization and Kinetic Studies
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December, 2012
Products
BioWin
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BioWin
Wastewater Process Simulator
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Interface
Clear and easy to use…
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BioWin Features
Ease of Use
Always developed as a Windows application
Does not require multiple steps to build a simulation
Does not require add-ons
Shorter learning curve
Report generation (in MS Word)
Data to Excel
Support
Strong technical backup
Tried and tested
Used by most consultants around the world
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December, 2012
People Development
Courses
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People Development
Comprehensive range of courses & workshops
BioWin Introductory training
BioWin Advanced training
Calibration course
Custom courses
Knowledge transfer workshops
Data requirements and analysis
Plant model calibration and verification
Plant model application: “what if” (scenario) analysis
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December, 2012
Professional Services
Model Calibration, Process Design,
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Professional Services
Consulting
Collaborative – teaming
Our methodologies and calibration expertise
Wastewater Characterization
Key for calibration
EnviroSim’s research & experience ensures that our calibrated wastewater treatment models are truly predictive
Field Experimental Services
Effective quantification of real world variables
Experienced experts and proven sampling & analysis programs ensure that influent wastewater characteristics and nitrification kinetics are effectively captured.
North Shore WWTP Auckland, New Zealand
Chelmsford WWTP Ontario, Canada
Czajka WWTP Warsaw, Poland
Metropolitan WWTP Minneapolis, U.S.A.
Christies Beach WWTP, Adelaide, Australia
Shek Wu Hui STW, DSD, Hong Kong
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December, 2012
Applying BioWin
Reducing Operating Costs
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BioWin Application – Operating Cost Savings
The situation…
Reactor / Clarifiers
Recently upgraded nutrient removal process
Auckland, NZ
Design: 103 mgd(mean daily flow)
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BioWin Application – Operating Cost Savings
The situation…
Meets Current Final Effluent Requirements
Total N: 9.5 mg/LBOD: 15 mg/L
Aeration Control Strategy• Single airflow
control valve for each R/C
• Position controlled by any one of four DO probes in aerated zones
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BioWin Application – Operating Cost Savings
The situation…
DO in aerated zones highly variable
Aeration power costs $NZ 1.7M annually
Explore cost saving potential of improved DO control strategies
AND
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BioWin Application – Operating Cost Savings
The approach…
Model Configuration in BioWin
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BioWin Application – Operating Cost Savings
The approach…
Plant-wide intensive sampling campaign to supplement historical data
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BioWin Application – Operating Cost Savings
The approach… Dynamic model predicted versus observed operational data…
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BioWin Application – Operating Cost Savings
The application…
Compare Improved and Existing DO Control Strategy
Methodology:• Selected an “average week”
• Synthesized diurnal “reactor feed” profile
• Entered actual observed DO data
• Model calculated airflow rates
• Calculated power consumption from airflow
• Compared cumulative power consumption
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BioWin Application – Operating Cost Savings
The application…
Compare Improved and Existing DO Control Strategy
Methodology:• Compared cumulative power
consumption
• Generated cumulative power trend over one week
• Proposed control strategy improvements indicated significant potential power reduction
Current Control
Proposed Control
Projected Red’n
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BioWin Application – Operating Cost Savings
Conclusions and benefits…
Annual Cost Savings: $NZ 399,000 (@ $0.083 / kWh)
Conclusions• BioWin simulation can be used effectively as a test
of the economic benefits of different aeration control strategies
• BioWin simulation is particularly appropriate for complex aeration systems where implementation is relatively costly
• Significant cost savings can be made by improving aeration control
Benefits• Cost saving NZ$399,000 per year (at
$0.083/kWh)
• Reduction in air consumption by @ 20%
• Reduction in blower power consumption by @13,000 kWh/d (8% of total power)
• Return on investment
• Immediate Cash Saving
• Improved Process & Stability
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Thank You…
Richard [email protected]
In South America:Daniel A. Nolasco
NOLASCO & Assoc. [email protected]