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 self reporting 700 100 90 600 Pollution incidents 80 % self reported 500 70 60 400 50 300 40 30 200 20 100 10 0 0 2012 2013 2014 2015 2016 Pollution incidents Self report 500 Category 1 - 3 pollution incidents (inc consented) 465 450 400 400 350 340 Pollution Incidents 300 282 263 259 250 229 232 229 200 150 100 50 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Penalty Reward Performance Commitment Last Year (YTD) YTD Actual Year End Forecast Budget
Technology and control Pumping station Ground- availability water monitoring We monitor critical data across the sewer network and proactively deploy resources to areas in need Pump energy consumption
Technology and control We deploy temporary Live rainfall data equipment to protect customers before they flood Hydraulic model Storm chasing 1,600 depth loggers Groundwater We dispatch level monitoring tanker crews to predicted flood Pumping station wet locations to well level proactively manage flooding 13 5
Environmental response Sound understanding of Industry environmental leading impact Environmental specialist on site within an hour
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 • Real time Network Management System locations susceptible to flooding / pollution. (NMS); identifying real time network status Thames Tideway Tunnel (enabling works) and health, providing predictive responses • Used to assist planning of construction works to to event data allowing enhanced manage network performance risk and maintain management of assets to avoid service levels of service. failures and optimise performance of the network and treatment works .
Advanced Energy Recovery 07 November 2016 Nigel Watts, Nick Mills and Keith Colquhoun
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 9
Advanced Energy Recovery THP & AD Bio-gas Combined Heat & Power 10
Advanced Energy Recovery THP & AD Bucher Press Bio-gas High Dry Solids Dewatering Combined Heat & Power 11
Advanced Energy Recovery Sustainable Thermal Drying THP & AD Bucher Press Bio-gas High Dry Solids Dewatering Combined Heat & Power 12
Advanced Energy Recovery Sustainable Thermal Drying THP & AD Bucher Press Bio-gas High Dry Solids Dewatering Pyrolysis Combined Heat & Power Char 13
Advanced Energy Recovery Sustainable Thermal Drying THP & AD Bucher Press Bio-gas High Dry Solids Dewatering Pyrolysis Combined Heat & Power Char Combined Heat & Power 14
Advanced Energy Recovery Sustainable Thermal Drying THP & AD Bucher Press Bio-gas High Dry Solids Dewatering Heat Pyrolysis Combined Heat & Power Char Combined Heat & Power 15
Chemical Investigations Programme (2) 07 November 2016 Yvette De Garis and Howard Brett
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.
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.
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.
Summary 20
Please make your way back to the lecture theatre 21
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