DST funding for expansion of Aakash Ganga project
Akash Ganga, the rainwater harvesting project (Principal Investigators : Prof. Rajiv Gupta, Professor of Civil Engineering at BITS Pilani and Mr B P Agrawal, Founder, Sustainable Innovations, US ) will be expanded and perfected in the next two years. The expansion will be in terms of sustainability, scalability, financial feasibility, viability and cultural integration. The duo team will work with two voluntary organizations, namely, Society for Community Organization and People’s Education (SCOPE) and Samudra Vikas Samsthan to expand and perfect the Project in the next two years. The expansion project received funding of Rs 60 lakhs from Department of Science and Technology, Government of India. This was stated by Prof Rajiv Gupta while he was speaking to the Media Relations Unit of the Institute.
Aakash Ganga, which has been implemented in six villages of Rajasthan, namely, Pilani, Raila, Harinagar, Lasedi, Indrasar and Kaakreu Kalan is a replicable and self sustainable rooftop rainwater harvesting scheme. The local village body acquires rights, from homeowners, for a fee to harvest their rooftop rainwater during the rainy season. The village body, in return, supplies the stored and filtered drinking water to the villages for a fee that is affordable, economically viable and socially equitable. Aakash Ganga has a multi-tier architecture consisting of a ‘Griha’ (Home) tank, attached to an individual house, Samooh (Collective) tank for collecting overflows from a group of houses, Sanjha (Common) tank for collecting overflows from Somooh tanks and other community structures, and a Gram (Village) reservoir, a large capacity reservoir for the village. Aakash Ganga deploys GIS to optimize the water collection network and location of storage tanks. The Griha tank with a storage capacity of 20000 litres has been designed to meet the drinking water needs of a house for 6-12 months with average rainfall of 400 mm. The network can be scaled to suit a large community.
Professor Rajiv Gupta said that Aakash Ganga is a comprehensive scheme which provides a network of tanks for providing water to the entire village, besides harvesting the rainwater. Its use of GIS images helps in the design and implementation of tanks for improving the functional efficiency of the system. It would use a wireless network to collect information about the distribution of water, tank leakage and maintenance which would go a long way in optimizing the water usage. Another facet of Aakash Ganga is the vegetation it supports as a result of which the villagers can grow a lot of low water dependent plants such as Amla, Beri, Lemon, Lac, Olive etc in the vicinities of the tanks which help in income generation for the village. Prof Gupta added that Aakash Ganga is scalable and is replicable in any rural or urban setting. The project team will also develop a software which will work as a tool for a Junior Engineer to replicate the scheme for other villages of the state. Above all, Akash Ganga is in perfect harmony with the village cultural ethos since the scheme provides facilities for worshipping at the water tanks, which also has a spin off ie it maintains cleanliness and hygiene near the tanks, Prof Gupta added.