biogas

New Biogas Upgrading Facility in London Using Wastewater

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DMT Environmental Technology (DMT), a global renewable gas leader, announces they will be the biogas upgrading technology provider for the first collaboration between Thames Water and SGN Commercial Services. As one of the two contractors selected, SGN Commercial Services was awarded an eight-year framework, valued at £70 million, by Thames Water. Furthermore, SGN Commercial Services will design, construct, operate and maintain biogas processing installations at Thames Waster’s wastewater treatment facilities.
New Biogas Upgrading Facility in London Using Wastewater
Courtesy of DMT

The collaboration begins with Deephams Sewage Treatment Works, a sewage treatment facility close to Picketts Lock, Edmonton, England. This £7.3 million project will transform biogas generated during the sewage treatment process into biomethane using DMT’s membrane separation technology. The DMT system also includes a unique twin compressor system and an enhanced pre-treatment system to remove high levels of hydrogen sulfide, VOC’s and siloxanes often present in biogas derived from wastewater.

With expected completion set for March 2022, Deephams Sewage Treatment Works will produce six million cubic metres of biomethane annually. This is enough renewable energy to heat 3,500 homes in the borough of Enfield. Additionally, the new plant will significantly improve air quality around Deephams and reduce the need to burn off excess gas.

SGN Commercial Services is part of the SGN group who own and operate the gas distribution networks in the south of England, across Scotland and in the west of Northern Ireland. DMT and SGN Commercial Services have had a long-standing partnership delivering ground-breaking biomethane projects since 2012. This includes Rainbarrow Farm, the UK’s first commercial gas to grid biogas plant from anaerobic digestion located in Poundbury.

“DMT is delighted to be working with SGN Commercial Services again. Both teams have the experience and expertise to deliver future biomethane projects for Thames Water," said Stephen McCulloch, Business Director at DMT Environmental Technology.

This past June, Thames Water announced its roadmap to achieve net zero carbon emissions across all operations by 2030. They also aim to become carbon negative by 2040. To do so, the company plans to increase its gas-to-grid installations. As the UK’s largest water and wastewater services company, Thames Water has been an early adopter of gas-to-grid technology since 2010. Currently, their 25 wastewater sites that use anaerobic digestion processes collectively produce more than 800 GWh of biogas.

Tags: Hydrogen
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