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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