Context: CSIR-Central Mechanical Engineering Research Institute, Durgapur unveiled the first-ever Waste Water Treatment Technology Model which purifies Waste Water for Irrigation/Farming purposes.

Aqua Rejuvenation Plant (ARP)

• Aqua Rejuvenation Plant (ARP) is an Integrated Waste Water Rejuvenation Model which has Six-Stage purification profile for comprehensive treatment of Waste Water, based upon diverse purification parameters.
• The approx. 24,000 litres of Water that can be rejuvenated using ARP will be sufficient for almost 4 acres of Agricultural Land (barring seasonal variations in water requirements).
• The used filtration media have been specially developed to handle Indian Sewage Water Parameters and based upon Geographical Variations they may be modified.
• The filter media is also locally source-able, so as to ensure that there would not be any stress in the Supply Chain for scaled-up Manufacturing of ARP.

• The treated water which is now being used for irrigation can be used even for drinking purpose also when little more time is given for settling.
• The system has dual benefit as while the treated water is being used for irrigation purpose, the filtered sludge generated is also utilized as manure / fertilizer.
• The bio char prepared from dry leaves falling in autumn season is also used for mixing in soil as it reduces the water requirement for irrigation thus saving precious water.
• The Institute was earlier also using alternate technologies like sprinkle system and others for reduced water requirement for such purpose.

https://pib.gov.in/PressReleasePage.aspx?PRID=1691622

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