Compendium of Projects Exhibited during the 2nd NLEPC - Vol I

RAIN WATER HARVESTING
The common components of a rainwater harvesting
system are:
Catchment: Rooftops are the best among them because of
the large coefficient of run off generated from them and
there are less chances of contamination of water.
Conveyance: Conveyance system basically includes rain
gutters and down pipes which collects the rain water from
catchment to the storage tank.
Storage: Tanks should be covered to prevent mosquito
breeding, evaporation losses contamination and algal
growth. Leakage from tanks should be prevented.
Filter: A simple filter of gravel, sand and charcoal can be
made all of which are easily available.
Purification: Use Chlorine or UV light to purify the
collected rainwater for potable use.
Distribution: Before supplying for human consumption
the water should be filtered purified and kept in a PVC
tank connected to a tap for withdrawal.
Recharge structures: Rainwater may be charged into the
groundwater aquifers through dug wells, bore wells,
recharge trenches and recharge pits.
Benefits of Rainwater Harvesting: Rainwater harvesting
increases water security. It is the perfect solution to meet
water requirements especially in the areas which do not
have sufficient water resources.
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2012
nd
2 National Level
Exhibition
& Project
Competitions
Details of the participant
Name
Jason Kharmujai
Class
VIIth
Innovation in Science Pursuit for Inspired Research
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School Name & Address
East – End Chambers School
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Name of the Mentor Teacher
Rajesh Kharbaomon
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Name of the District & State
East Khasi Hills District, Meghalaya