“Water
is the elixir of life” a famous saying goes. The perennial rivers, lakes
etc., are becoming dry and ground water table is depleting in most areas of our
country. India is facing floods and droughts in the same year in many states.
The demand of water is increasing day by day not only for agriculture but also
for household and industrial purposes. The total available water for the World
per person per year is about 7000 cum, whereas for India and Tamil Nadu it is
about 2200 and 800 cum respectively (Sivanappan, R.K, 2001). It is estimated
that water need for drinking, other municipal and industrial uses will be
increased by 4 fold i.e., from 3.3 MHM to about 12.00 MHM in 2020/25.This
implies a concrete action has to be taken to conserve, harvest and manage the
water efficiently.
Rainwater
harvesting is the practice of collecting the rainwater by storing it for
immediate use or by recharging it into the ground to increase the level of
ground water table. A Modern
Rainwater Harvesting systems includes artificial recharging and
rooftop-harvesting methods, which is being implemented in Kumaraguru
College of technology, PKR Arts College, Shankara Eye Hospital and Kikani
Matriculation School of Coimbatore District. This paper deals with need for
artificial recharge of ground water and also suggests suitable rainwater
harvesting structures through case studies in Coimbatore District of Tamilnadu,
India.
Address:
Centre for Water and Environmental Studies,
Department of Civil Engineering,
Kumaraguru College of Technology,
Coimbatore- 6
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