RADIO NETHERLANDS WORLDWIDE Press Review June 28, 2007 -
NRC.next has a story on the latest in ecological water purification. A sewage plant in the northern province of Friesland has introduced an ecological filter for the additional purification of one fifth of the sewage. A million litres of water a day is being 'treated' by water fleas and a 'purification marsh' planted with reeds.
According to the paper, the water fleas disinfect the water by eating floating particles containing E Coli bacteria and viruses, while micro-organisms on the reed stems provide additional oxygen. The project is part of the Urban Water Cycle, a collaboration between the United Kingdom, Germany and the Netherlands.
Urban Water Cycle have an ambitious program.