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AQUAREC Project Centre for Water Systems D. Joksimovic

AQUAREC Project Centre for Water Systems D. Joksimovic. Presentation Outline. Background Integrated Decision Support Systems in Water Reuse WTRNet Structure and Features Development of design principles Conclusions. Background. AQUAREC Integrated Concepts for Reuse of Upgraded Wastewater

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AQUAREC Project Centre for Water Systems D. Joksimovic

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  1. AQUAREC ProjectCentre for Water SystemsD. Joksimovic

  2. Presentation Outline • Background • Integrated Decision Support Systems in Water Reuse • WTRNet Structure and Features • Development of design principles • Conclusions

  3. Background • AQUARECIntegrated Concepts for Reuse of Upgraded Wastewater • Objectives • Provision of policy guidelines and water quality standards for municipal wastewater reclamation and reuse • Collection and validation of best management practices • Development of reference manuals and as step by step guides for future end-users • Evaluation, selection and standardization of technological concepts and components for wastewater recycling

  4. AQUAREC Project WP1: Analysis of European water market and supply & demand studies WP2: Definition of key objectives for water reuse concepts WP3: Development of integrated water reuse strategies WP4: Development of analysis tools for social, economic and ecological effects of water reuse WP5: Methodologies for public acceptance studies and consultation WP6: Management guidelines for the implementation and operation of water reuse cycles WP7: Characterisation and assessment of technology in water reuse cycles WP8: Development and validation of system design principles for water reuse systems WP9: Project management and dissemination

  5. Background • AQUAREC Work Package 8 ObjectiveDevelop and validate design principles for water reuse systems by using simulation and optimisation software • Infrastructural aspects of wastewater reuse systems • Integration of distribution and treatment elements • Assess feasibility of decentralised water reuse systems • Systems integration and compatibility with industrialwater supply systems

  6. Wastewater Influent Reclaimed Water WWTP - Potential Reclaimed Water Users - Distributed Treatment - Storage Facilities - Pumping Facilities Integrated DSS in Water Reuse Treatment Train Simulation Model (Synthesis and Evaluation)

  7. Integrated DSS in Water Reuse • Generation and screening of treatment trains • Address limitations of existing tools • Open and user-friendly environment • Suggestions for complete treatment trains • Rules for combining unit processes • Water distribution systems • Network topology • Sizing of pumping, transmission and storage facilities

  8. WTRNet Structure ModelKnowledge Base Control Module Graphical User Interface Distribution SystemSizing Module TreatmentPerformance Module Optimisation Module

  9. WTRNet Features • Regional data • Hydraulic loading • Pollutant concentrations • General costing information • Evaluation criteria for treatment trains

  10. WTRNet Features • Evaluation Criteria

  11. WTRNet Features • End uses of reclaimed water • Industrial • Potable • Urban • Groundwater recharge • Environmental and recreational • Agriculture

  12. WTRNet Features • Unit processes information • Pollutant removal efficiencies • Costs • Construction • O&M • Resources • Land • Labour • Energy • Sludge and concentrates

  13. Sludge treatment and disposal WTRNet Features

  14. WTRNet Features

  15. WTRNet Features Treatment TrainEvaluation Results Effluent Quality Percent PollutantRemoved/Remaining Evaluation CriteriaScores Costs andResources Select End Use/Source water Combination Modify Treatment Train SuggestedTreatment Train Select Sludge Treatment and Disposal

  16. WTRNet Features Treatment TrainEvaluation Results Effluent Quality Percent PollutantRemoved/Remaining Evaluation CriteriaScores Costs andResources Select End Use and Source water Add More Processes by Selecting From Lists of PossiblePre- and Post-cursors Add Unit Process toTreatment Train Select Sludge Treatment and Disposal

  17. WTRNet Features Layout Distribution System Components Set Nodes Properties Set Links Properties Least Cost Distribution System Design Optimal operating strategy and storage sizes determined simultaneously Linear Programming used to sizepump stations and pipe segments

  18. WTRNet Features

  19. WTRNet Features

  20. No. of Potential End-users RawSewage PrimaryEffluent Secondary Effluent Small Large • Comprehensive GA for simultaneous selection of optimal set of end-users and treatment train WTRNet Features • Enumeration of all end-user combinations • Enumeration of treatment trains for each combination of end-users • Simple GA for selection of end-users • Enumeration of treatment trains for each combination of end-users

  21. Kyjov London Development of Design Principles • Applied WTRNet to two case studies

  22. 34% Development of Design Principles 45%

  23. Development of Design Principles

  24. Percentage of projected demand Overview of selected least-cost treatment trains 100% 75% - micro filtration, ion exchange25% - surface filtration, advanced oxidation (UV/H2O2), SAT 200% 6% - micro filtration, ion exchange55% - surface filtration, advanced oxidation (UV/H2O2), SAT3% - maturation pond, surface filtration, micro filtration35% - surface filtration, ion exchange, chlorine dioxide 300% 3% - micro filtration, ion exchange7% - surface filtration, advanced oxidation (UV/H2O2), SAT90% - surface filtration, ion exchange, chlorine dioxide 400% 100% - surface filtration, ion exchange, chlorine dioxide Development of Design Principles • Least-cost treatment patterns– Kyjov case study

  25. Conclusions • WTRNet allows efficient planning level evaluation of integrated reuse schemes • Treatment train assembly rules greatly reduce the number of design alternatives • Incorporated optimisation methodologies appropriate for the size of the problem

  26. Conclusions • Variability in total lifecycle cost is a direct result of the distribution system costs • Distribution system - a significant portion of total scheme lifecycle cost • Patterns in selection of least-cost treatment trains

  27. Acknowledgements • European Commission • AQUAREC Project partners • RWTH Aachen, Chemical Engineering Department, Germany • Aquafin NV – Water Body of Flanders, Belgium • Centre for Research and Technology, Hellas, Chemical Process Engineering Research Institute, Greece • Technical University Delft, Department of Water Management, Netherlands • Mekorot Water Company Ltd., Israel

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