Water company forced to stop processing trade waste to biogas

Severn Trent Water and the Environment Agency (EA) are at loggerheads over the regulator’s decision to effectively ban a long standing practice that has seen waste introduced directly into the water firm’s digester tanks

Anaerobic digester
sludge produced from the AD process has previously not been classed as waste

Severn Trent Water and the Environment Agency (EA) are at loggerheads over the regulator’s decision to effectively ban a long standing practice that has seen waste introduced directly into the water firm’s digester tanks.

Severn Trent told ENDS the problem arose because the EA needed to “clarify its national position” on environmental permitting requirements. While this took place it would “temporarily suspend all trade waste” from being added to its anaerobic digesters, which process mainly sewage sludge.

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