Sludge mineralisation method makes British water more sustainable
Through 25 years Orbicon has worked on a purifying technique that is now used in England in a new manner. The World’s largest sludge mineralization plant for water supply Hanningfield Reservoir is a 354 hectares water body near Essex in Northern England. The water is purified and becomes drinking water for approximately 1.5 million people. During the process a lot of reddish sludge is generated. Earlier, the sludge was mechanically treated, but now Orbicon has been consultant on constructing a 4 hectares plant distributed on 16 reed beds for Northhumbrian Water. The Secretary of State for Environment, Food and Rural Affairs paid a visit The British Secretary of State for Environment, Food and Rural Affairs, Richard Benyon, stopped by a few weeks ago to see the new plant, which is the first of its kind. "It's really exciting and I would like to see it elsewhere in the country", he says on a BBC television broadcast. A sustainable solution Through more than 25 years Orbicon has worked on and developed this sludge mineralisation method. So far it has been used for waste water treatment, but for the first time a plant for drinking water purification sludge has been constructed. The process is natural and much more sustainable – both environmentally and economically compared to conventional mechanical treatment techniques.The sludge is pumped into basins, where reed grow. The sludge is dewatered and a large part of the compounds are naturally mineralised, and the sludge volume reduces. After approximately 15 years the basin is drained and the remaining sludge is applied as fertiliser on farmland.
If you want to read more about this innovative solution, you can do so at stateofgreen.com, which also enables you to contact with the solution provider for a visit of the demonstration site