STREAM-Engineering Doctorate project
By: Biniam Biruk Ashagre
Academic Supervisors: Dr Guangtao Fu
Prof David Butler
Industrial Supervisor: Ms Kerry Davidson
Sponsors:
Safe and Sure project weekly meeting: 29/08/2013
In this presentation
 What is dynamic licensing?
 Why dynamic licensing?
 Aim and objectives of the project
 Study sites
 Methodology and Work plan
 What is done so far?
What is dynamic licensing
 It 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?
Strict discharge standards
leads to Increased energy
demand and carbon
footprint
Environmental
legislation like Water
Framework Directive
Suggestion
Drivers
Economic
point of
view
Demands
reduction in
energy
consumption
Climate
change
regulations
Demands
reduction in
carbon
footprint
The use of
holistic view
inspired by WFD
and allow
WwTPs to run
dynamically in
synergy with the
environment
Aim of the project
 The 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 objectives
1.
To come up with a control strategy by integrating
river, WwTP and the sewer system so as the WwTPs
can operate optimally to:
i.
ii.
iii.
Reduce energy consumption
Reduce carbon footprint
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 objectives
2.
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 sites
 Cupar 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)
Screen
& Skip
Intermittent
pumped
inlet
Study site: Selkirk WwTP
Storm Screen
Replace AS
reactors with OD
Upper
Intake
Two storage
tanks
Sludge
Tank
Study sites
 Selkirk 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