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Peat soil laid over chalk rock, with a layer of clay in between, can reduce iron and sulphate contamination of mine water by more than 80%, according to researchers in Germany.
A sustainable wheelchair seat pan developed by the National Composites Centre has been nominated for a Med-Tech Innovation Award in the Materials Innovation category.
A catalyst made from turmeric and gold needs 100 times less energy to convert ethanol into electricity, claims a team from Clemson Nanomaterials Institute, USA, and the Sri Sathya Sai Institute of Higher Learning in India.