CSR's interest in natural wastewater treatment
systems has grown steadily over the years. It increased drastically in
1995, when CSR received a grant from the Commission of the European
Union, via BORDA (a German NGO), to build 4 wastewater treatment plants
in Auroville for study and demonstration of the viability of
"Decentralized Waste Water Treatment Systems" (DEWATS). CSR
has now acquired very valuable experience in designing and operating
plants of various types: "Aquatic Weed Lagooning Systems",
"Planted Filters" or "Reed Zoning Systems",
"Vertical Filters", etc.
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