Flag Fen – Advance Membrane High Purity Water Re-use Scheme

The Flag Fen High Purity Water Re-use Scheme was one of the first sites in Europe to use advanced membrane technology to treat sewage final effluent for re-use purposes. This project involved the mechanical and electrical design, installation and commissioning of membrane technology.

The water produced is 10 times purer than normal tap water. This high purity water is piped to the power station to be further polished by Ion Exchange demineralisation units before being used to produce the steam required in the electricity generation process. The site is unmanned but operating data is continuously transmitted through the telemetry system to Anglian Water’s operations staff. It has been operating successfully for over 15 years.