The picture is of a floating barrier made to arrest floating trash or garbage, designed by Bengaluru based AlphaMERS (patent applied). This does not treat chemical or dissolved pollutants. This design, originally made with River Ganga in mind, will now be applied to lakes and water streams with flowing waters. Long sections of such barriers are connected end to end, running from the riverbank or shore, laid diagonally across the flowing waters, and held in place by anchors. The water flows past, while trash is arrested by the barrier. Smaller particles are allowed to flow past to keep the resistance to water flow reasonably low. This trash slowly slides to the shore or bank from where municipal channels takeover and can easily recover /dispose. The water body now starts to look cleaner.
