Dipping a toe in global waters

“Vetturale di natura (vehicle of nature)" said Leonardo Da Vinci, when he observed water and studied hydrodynamics. Then there are others who explore the world of water in a different way. One of them is Joshka Wessels. She has documented and researched the technology and rehabilitation of thousand-year old underground water tunnels called qanats in countries like … Continue reading Dipping a toe in global waters

Water filtration by tomato and apple peels

In order to enhance the ability of apple peels towards extraction of negatively charged pollutants, Mr Ramakrishna immobilised naturally occurring zirconium oxides onto the surface of apple peels. Zirconium loaded apple peels were found to be able to extract anions such as phosphate, arsenate, arsenite, and chromate ions from aqueous solutions. Read more:  NUS researchers … Continue reading Water filtration by tomato and apple peels