Harvesting rain - an urban rainwater system, Bangalore,India.
Автор: zenrainman
Загружено: 2008-06-20
Просмотров: 87169
Описание:
Collecting rainwater in a sump tank. This is one way of harvesting rain. Rooftop is kept clean. A first rain separator can segregate the first 2 mm of rain or be used when the rooftop needs cleaning.
A filter which is made from ferro-cement by the company APTEK removes carbonaceous material like leaves, twigs et al. Then the water is stored in an underground sump tanl to be used when required.
The rule of thumb for Bangalore is 6000 litres of storage to harvest rainwater from a 100 square metre roof area. This will help harvest about 80,000 litres to 100,000 litres of rain every year.
Bangalore has the advantage of good rain, 970 mm on average, which is also well distributed. The rainfall occurs over 60 rainy days from April to November.
Take advantage, harvest rain,reduce demand, recycle grey water adn help solve Bangalore's water problem.
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