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Paper Details

Study on technical feasibility and economic viability of rooftop rainwater harvesting systems suitable for residential premises

R.H. RAJKUMAR*, P. NATARAJAN AND H.K. SHIVANAND

Journal Title:International Journal of Agricultural Sciences
Abstract


An investigation was carried out to study the technical feasibility and economic viability of rooftop rainwater harvesting systems suitable for residential premises in Tamil Nadu Agricultural University, Campus. Coimbatore. The technical feasibility and economic viability of rooftop rainwater harvesting systems revealed that among individual residential blocks and all residential blocks combination, the all residential blocks combination was found to be more feasible for installation of rooftop rainwater harvesting structure with a benefit cost ratio of 2.27 and pay back period of 1.78 years. Hence, this combination was more suitable than any other individual blocks for rooftop rainwater harvesting systems. All the residential blocks combination can generate 40,92,611 liters of water per annum. Due to rooftop rainwater harvesting a sum of Rs. 1,22,778 per annum would be saved from all residential blocks combination which otherwise could be incurred from transporting water from tanker to these buildings combinations. The recharge pit can be constructed for all those residential blocks which are having surplus water

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