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BIOFILTRATION
Every day, 50,000 litres of polluted water flow from South Africa's Stiebeuel River into natural filter beds, where stones, sand and biochar clean it in 5 days, removing 99% of harmful bacteria and creating water for irrigationResearchers in South Africa are using a nature-based filtration system to treat polluted water from the Stiebeuel River in Franschhoek. At ...- Bengaluru: Waste processors need bio-filters to quell the stinkThe state government, under pressure to deal with the garbage crisis, spent `440 crore to set up municipal solid waste management units at ...
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