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UK - AD Plant

09/01/2019 | Project Number: 001944

Key Project Facts

Country: Location:
United Kingdom Leeds, West Yorkshire
Principal Facility Type: Facility Type:
Anaerobic Digestion Anaerobic Digestion, Biogas, Energy from Biomass
Principal Waste Type: Waste Type:
Sewage/wastewater Wastewater/sewage/sludge
Development Phase: Value:
Project Commencement £ 72,000,000
Output (MW):
Capacity (tonnes/year):
Commission Date:
Q2 2019

+ Project Updates

Construction of an AD plant at a sewage works.

On 9th September 2016, Yorkshire Water received approval for a £72 million new state-of the-art sludge treatment and anaerobic digestion (AD) facility at Knostrop Sewage Treatment Works in the centre of Leeds. The planning proposal for the facility was approved by Leeds City Council’s planning committee and the development contract was awarded to Black & Veatch, with the civil engineering element being delivered by Clugston Construction.

On 2nd November 2016, Edina revealed that, following a competitive tendering process, Black & Veatch had awarded the company the contract to supply and install two 2 MWe MWM-manufactured TCG 2020 V20 CHP generating sets. Both generating sets will be containerised at Edina’s manufacturing facility based in Lisburn, Northern Ireland, reducing site installation time, cost and carbon emissions.

Knostrop wastewater treatment works on Knowsthorpe Lane has been treating sewage from domestic properties and industry for approximately 100 years. The new facility will replace the existing sludge and biosolid incinerator which was constructed in 1993 and enable the more efficient and effective treatment of sewage combined with the additional benefit of renewable power production from the wastewater effluent.

Nevil Muncaster, Director of Asset Management, said; “This is the single biggest investment of our current investment period (2015-2020) and will not only provide increased treatment capacity for our sludges, but will also deliver significant operational cost savings.”

The facility will be capable of processing 131 tonnes of dry sludge a day and will generate enough renewable energy, using heat and power engines, to provide 55% of Knostrop’s energy needs – enough to power 8,000 homes. Yorkshire Water intends to generate approximately 18% of its energy needs by 2020. The new facility will achieve a 15% reduction in carbon emissions and contribute to achieving the recycling of 94% of the region’s sludge by 2020.

In April 2014, Leeds City Council granted planning approval to Kelda Water Services for the construction and operation of an AD plant at the Knostrop Sewage Treatment Works in Leeds. However, this project failed to materialise.

Project Progress

In June 2017, Yorkshire Water stated that it had reached a construction landmark in the project with the completion of the four new 25 metre high concrete sludge digester tanks.

Clugston Construction, working alongside main contractors Black and Veatch, completed the end of the civil construction phase in March 2018. This enabled the project to move onto the mechanical and electrical installation phase.

In June 2018, Yorkshire Water completed the construction of a massive gas bag at the site. Methane produced from sludge treatment will be stored in the bag, with up to 3,700 cubic metres of gas stored at any one time. The gas will then be turned into electricity which will help power the plant.

Commissioning started in September 2018 and in January 2019, Yorkshire Water advised AcuComm that handover is now expected in May.

+ Contact Information

Waste Projects across the world

AcuComm Database Status at
24th Jan 2019

Total number of contacts listed: 19,744

Total number of projects listed: 6698

Number of countries covered: 173

Projects created this quarter: 232

Projects updated this quarter: 578

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