Soni, Vikram and Mehrotra, Ravi and Datta, P. S. and Chander, S.
(2009)
A process for organic water.
Current Science, 96 (8).
pp. 1100-1103.
ISSN 0011-3891
Abstract
We present a local, self-sustaining, natural and economic
way to secure a quality drinking water resource
for a town or city. Most local rainfed aquifers in the
environs of cities suffer from long-term contamination
by chemical waste – either fertilizers and pesticides or
urban effluents. We propose a process by which such
aquifers can be restored to quality. This is accomplished
by first changing the land use of the catchment
area of local aquifers to forest, and then by a yearly
evacuation of water in the aquifer till quality is restored.
A model is used to estimate that, typically, by
yearly evacuation of the aquifer, pollution in the aquifer
water is reduced to 10% of its initial value in 5–7
years. This is an organic process to purify the water in
the aquifer. We also find that the area required for
this falls within 10% of the total area of the city, well
within the green area norm for a city.
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