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Dynamic licensing – integrated control of urban wastewater systems. STREAM-Engineering Doctorate project By: Biniam Biruk Ashagre Academic Supervisors: Dr Guangtao Fu Prof David Butler Industrial Supervisor: Ms Kerry Davidson Safe and Sure project weekly meeting: 29/08/2013 . Sponsors:. - PowerPoint PPT Presentation
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Dynamic licensing – integrated control of urban wastewater systems
STREAM-Engineering Doctorate project
By: Biniam Biruk Ashagre
Academic Supervisors: Dr Guangtao FuProf David Butler
Industrial Supervisor: Ms Kerry Davidson
Safe and Sure project weekly meeting: 29/08/2013 Sponsors:
In this presentationWhat is dynamic licensing?Why dynamic licensing?Aim and objectives of the projectStudy sitesMethodology and Work planWhat is done so far?
What is dynamic licensingIt is an approach that align the real time
operation of wastewater treatment plants in harmony with the dynamic capacity of receiving water.
Why dynamic licensing?
Drivers
Environmental legislation like
Water Framework Directive
Strict discharge standards leads to Increased energy
demand and carbon footprint
Climate change
regulations
Demands reduction in
carbon footprint
Economic point of
view
Demands reduction in energy
consumption
Suggestion
The use of holistic view inspired by WFD and allow WwTPs to run dynamically in synergy with the environment
Aim of the projectThe aim of the project is to develop an
integrated catchment based control strategy in which several WwTPs can operate optimally using a dynamic licensing approach without affecting downstream water quality.
Main objectives1. To come up with a control strategy by
integrating river, WwTP and the sewer system so as the WwTPs can operate optimally to:
i. Reduce energy consumptionii. Reduce carbon footprintiii. Meet the effluent quality which is determined by
the dynamic receiving capacity of receiving river
Main objectives
Figure A conceptual representation of integrated urban wastewater modelling as the first objective. Prepared in collaboration with Sam Dickinson
Main objectives2. To come up with a control procedure to optimize catchments
for the best possible downstream river water quality while assuring a reduced energy consumption and carbon footprint.
Control procedures will be developed for very WwTP based on downstream river quality and upstream WwTPs will work in coordination with downstream WwTPs
Study sitesCupar catchment• Catchment Area (km2): 307.4
• 9 WwTWs (inc. Cupar)
• 1 Septic Tank
• 31 network CSOs
• Sewer Networks: 10
(7 with CSO’s)
Study site: Cupar WwTP
Figure Cupar wastewater treatment plant (STOAT)
Sludge Tank
Storm Screen
Two storage tanks
Replace AS reactors with OD
Screen & Skip
Upper Intake
Intermittent pumped inlet
Study site: Selkirk WwTP
Study sitesSelkirk
Catchment• Catchment Area (km2):
499.0
• No of WwTWs (inc. Selkirk): 1
• 1 Septic Tank???
• No Network of CSOs: 10
• No of Sewer Networks: 2 (1 with CSO’s)
Methodology and work plan
Work Plan
Thank you!