Water Supply and Demand for Different Sectors in Bhavani Basin
2021
Malaisamy, A.
The irrigated crops Demand based on water requirement is 2.12 m.ha.m (44.72 percent). This Demandsupply gap is 0.48 m.ha.m. (Palanisami 2013). India food grain need is 450 MT by the year 2050. The irrigation sector consumes the majority of water, and more attention is required in this sector. Almost all the utilizable potential will have to be harnessed to meet the demand for agriculture, industry, energy generation, and domestic consumption. The National Water Policy (2002) gives overriding priority to drinking water over other uses. Taking an average of 200 liters per capita per day (liter per consumer demand), the urban demand for water for the population of 1000 million (2012 estimate) would be 73.17 BCM, of which consumptive use should only be 14.63 BCM (20%). A quantity of 14.63 BCM is too tiny compared to the total potential to pose any supply problem. Due to improper wastewater management, the water Demand projected as 60 BCM compared to the actual demand 14.63 BCM. The drinking water Demand is 10 BCM at the present level of 40 liter per consumer and it would be 29 BCM by 2050 d (Ministry of Water Resources, 2018 estimate). • Domestic water demand shall be 820 Million by 2050. • Industrial uses of water are likely to be about 25 percent in the year 2025 AD. • The annual food grain requirement works out to be 450 MT by the year 2050.
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