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GreenSource: Sustainable water quality
January 21st, 2014
Local officials and the South African Water Research Commission worry about water quality and quantity in the northwest province of South Africa. Severe drought and groundwater pollution from mining, industrial activity and agricultural irrigation raise serious concerns about drinking water supplies. A group of companies plans to install 20 sustainable drinking water systems, called GreenSource, […]
Fog-catching fabrics collect water
May 1st, 2013
Researchers from Eindhoven University of Technology, The Netherlands, and Hong Kong Polytechnic University, China, turned a cotton fabric into water-collecting material by coating it with a polymer that changes its microstructure when air temperatures change. The spongy fabric absorbs moisture directly from the air when it is foggy, releasing it as water when the material […]
Cotton fabric collects water from fog
May 1st, 2013
Researchers from Eindhoven University of Technology, The Netherlands, and Hong Kong Polytechnic University, China, turned a cotton fabric into water-collecting material by applying a coating of PNIPAAm, a polymer, to the cotton fabric. At lower temperatures, this cotton has a sponge-like structure at microscopic level. Up to a temperature of 34°C it is highly hydrophilic, […]