Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, whether his Department has produced guidance for operators of sewage processing plants on the use of Nereda reactors in areas of high population density.

The operation of sewage processing plants is a matter for water companies who must comply with any permit conditions that have been set. The use of Nereda reactors, a particular type of wastewater treatment process, must be in accordance with any relevant permit conditions.