1Asstt. Professor (Water Resource Management), College of Post Graduate Studies, Barapani, Meghalaya
2Associate Professor, Department of Civil Engineering, KIIT Deemed University, Bhubaneswar, Odisha
3Vice Chancellor, Swami Vivekananda Technical University, Bhillai-490026, Chhattisgarh
4Professor, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu- 641003
In XIth five year plan of India; water is given prime importance in all the developmental sectors. So, its conservation is given topmost importance. In addition to conservation, the management of conserved water is a matter of concern in order to overcome the fascinating problems on water scarcity. A structure was constructed along with all system components to collect rooftop rainwater through a net work of pipelines and its efficacy was monitored in meeting the portable and non-portable water demands for a projected roof surface area of 624 m2 at Soil and Water Conservation Engineering (SWCE) workshop building of Tamil Nadu Agricultural University (TNAU), Coimbatore. Weekly water balance reveals that 37th to 48th week got a surplus supply of rainwater after meeting all demands. It has been found that per annum a sizable amount i.e. 294.4 m3 of rain water can be harnessed from its rooftop during rain, which indicates a good potential for harvesting rooftop rainwater. The designed structure is found to work well to meet the portable water demand of the SWCE workshop complex.
Demand, portable and non-portable water, rooftop rainwater harvesting structure, supply and Water balance
