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« BackNews: Project To Improve AD Efficiency For Yorkshire Water

Project To Improve AD Efficiency For Yorkshire Water

Yorkshire Water has teamed up with experts at the University of York to improve the efficiency of its anaerobic digestion (AD) plants to help it meet its commitment to treating all of its sewage using AD rather than incinerators by 2020.

During the AD process, the sewage is turned into biogas that can be used for electricity generation. The remaining digested sludge is also put to good use as an agricultural fertiliser. The water company noted that by processing all of its sewage through AD it will lower its carbon footprint and save money. These savings could then be passed onto customers.

Professor James Chong and his team at the University of York will be looking at the microbes that drive the AD process and seeking to identify the ideal conditions needed in the digester to improve its efficiency.

To do this, they have built 60 identical digesters in a laboratory environment. The hope for Yorkshire Water is that they can improve the efficiency of their existing AD plants, allowing them to treat more sewage with the existing infrastructure, rather than needing to build more AD plants to achieve the same output.

Speaking to Water & Wastewater Treatment, Ben Roche, director of wastewater service delivery at Yorkshire Water, explained the organisation estimates that, by the end of this year, it will have reduced its carbon footprint by 80 per cent in the past decade. However, he stressed there’s more to do.

“With Yorkshire’s population set to grow by a further one million people by 2045, it is vital we pull out all the stops to ensure we have the capacity to deal with demand,” he asserted.

Earlier this year, the Anaerobic Digestion and Bioresources Association noted that AD could help the government meet its ambitious target of hitting net zero emissions by 2050.

If you’re looking for a vacuum relief valve for your AD plant, get in touch with us today