News tagged with sludge

Eco-pottery product from water treatment sludge

Sludge is a by-product of water treatment. Sludge is produced during the clarification and filtration process in the water treatment system. It is also produced from the accumulated solids removed from sedimentation basin ...

dateJul 23, 2014 in Environment
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Rethinking the value of sewage sludge 

Researchers from the Plant Nutrition Group at ETH Zurich have been evaluating methods to develop an efficient and environmental friendly phosphate fertilizer from sewage sludge ashes. A new thermo-chemical process that extracts ...

dateAug 16, 2013 in Environment
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