SLIDE 1
Lawrence Gosden Managing Director, Wastewater
Welcome
Waste Water Quality Breakout
07 November 2016
Anthony Crawford, Matthew Hart and Andrew Hagger
Environmental protection
07 November 2016
Welcome Waste Water Quality Breakout 07 November 2016 Lawrence - - PowerPoint PPT Presentation
Welcome Waste Water Quality Breakout 07 November 2016 Lawrence - - PowerPoint PPT Presentation
Welcome Waste Water Quality Breakout 07 November 2016 Lawrence Gosden Managing Director, Wastewater Environmental protection 07 November 2016 Anthony Crawford, Matthew Hart and Andrew Hagger Environmental protection Number of incidents and
SLIDE 2
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Environmental protection
340 232 229 282
465 400 263 229
259 50 100 150 200 250 300 350 400 450 500 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Pollution Incidents Category 1 - 3 pollution incidents (inc consented)
Penalty Reward Performance Commitment Last Year (YTD) YTD Actual Year End Forecast Budget
10 20 30 40 50 60 70 80 90 100 100 200 300 400 500 600 700 2012 2013 2014 2015 2016 % self reported Pollution incidents
Number of incidents and self reporting
Pollution incidents Self report
SLIDE 4
Technology and control
Ground- water monitoring Pumping station availability Pump energy consumption We monitor critical data across the sewer network and proactively deploy resources to areas in need
SLIDE 5
5 13
1,600 depth loggers
Storm chasing
Hydraulic model Live rainfall data We deploy temporary equipment to protect customers before they flood We dispatch tanker crews to predicted flood locations to proactively manage flooding Pumping station wet well level Groundwater level monitoring
Technology and control
SLIDE 6
Environmental response
Environmental specialist on site within an hour Sound understanding
- f
environmental impact Industry leading
SLIDE 7
Real time management
Concept
Applications of models to manage network
Store Road (Rising Main Failure)
- System used to manage flows within network to
manage risk of flooding / pollution. Forest Hills (Sewer Crossing Railway)
- Development, implementation and monitoring of
flow diversion to facilitate sewer rehabilitation work. Bank Station (Sewer inspection)
- System used to develop safe system of work to
allow critical sewer inspection to take place. Summer 2016 – various locations
- System used to direct resources on site to
locations susceptible to flooding / pollution. Thames Tideway Tunnel (enabling works)
- Used to assist planning of construction works to
manage network performance risk and maintain levels of service.
- Real time Network Management System
(NMS); identifying real time network status and health, providing predictive responses to event data allowing enhanced management of assets to avoid service failures and optimise performance of the network and treatment works.
SLIDE 8
Advanced Energy Recovery
07 November 2016
Nigel Watts, Nick Mills and Keith Colquhoun
SLIDE 9
Recovery Benefits
- Energy recovery – as much as 90% of the energy potential in
sewage sludge recovered as renewable electricity.
- Increased energy resilience.
- Innovation – a world first.
- Reducing pressure on land banks for sewage sludge recycling.
- Reduced vehicle movements.
- Potential to replace SPGs.
- Biochar is a resource not waste, with opportunities to:
− Recover phosphorus, precious metals and carbon − Use as an odour filter material − Use as a carbon substitute by third parties − Avoid disposal to landfill
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Advanced Energy Recovery
THP & AD
Bio-gas Combined Heat & Power
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Advanced Energy Recovery
Bucher Press
High Dry Solids Dewatering THP & AD
Bio-gas Combined Heat & Power
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Advanced Energy Recovery
Bucher Press
High Dry Solids Dewatering
Sustainable Thermal Drying
THP & AD
Bio-gas Combined Heat & Power
SLIDE 13
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Advanced Energy Recovery
Bucher Press
High Dry Solids Dewatering
Sustainable Thermal Drying Pyrolysis Char
THP & AD
Bio-gas Combined Heat & Power
SLIDE 14
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Advanced Energy Recovery
Bucher Press
High Dry Solids Dewatering
Sustainable Thermal Drying Pyrolysis Char
THP & AD
Combined Heat & Power Bio-gas Combined Heat & Power
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Advanced Energy Recovery
Bucher Press
High Dry Solids Dewatering
Sustainable Thermal Drying Pyrolysis Char
THP & AD
Combined Heat & Power Bio-gas Combined Heat & Power Heat
SLIDE 16
Yvette De Garis and Howard Brett
Chemical Investigations Programme (2)
07 November 2016
SLIDE 17
Background
- National Environment Programme obligation for
all WaSCs for AMP 6, to understand the gap and solutions towards meeting ‘good’ Water Framework Directive status for chemicals.
- Investigating the sources, occurrence and
possible removal options for a vast number of metals, pharmaceuticals and industrial products in wastewater.
- £21 million programme of work; sampling,
analysis, construction, testing and reporting.
SLIDE 18
Current work
- 109 sewage works and receiving rivers
being sampled by us to inform this national project.
- Extremely low LODs for some substances,
so specialised lab analysis needed.
- Small proportion of sites also have influent
sampling, to investigate ‘emerging substances’.
- Five technology trials for chemical, metal
and phosphorus removal.
- Technology trials conclude in 2017.
- Programme of environmental sampling
ends 2020.
SLIDE 19
Next steps
- Results from environmental and STW
sampling will be used by EA to inform future permits and investment into PR19 and PR24.
- Technology trials will help inform possible
end-of-pipe solutions, work also looking at source control.
- Programme concludes in 2020.
- Emerging substances of concern will shape
future work.
SLIDE 20
Summary
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