Rainwater harvesting

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Drinking | Cooking | Bathing Drinking | Cooking | Bathing Rain Water Rain Water Harvesting Harvesting

Transcript of Rainwater harvesting

Page 1: Rainwater harvesting

Drinking | Cooking | BathingDrinking | Cooking | Bathing

Rain Water HarvestingRain Water Harvesting

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• Data to estimate, how much water can be harvested• Annual Rainfall in mm• Rainy days• Collection surface area

Harvest volumeHarvest volume

For example, at Bangalore, India you could harvest over 90,000 liters of rainwater every year from a roof area of a house built on a 30 ft x 40 ft plot size.

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• We use, per person per day• 7 liters for cooking and drinking• 65 liters for washing & bathing

Fresh water consumptionFresh water consumption

So, for a family of four, you would need:

(7+65) x 4 x 365 L = 1,05,120 Liters per year

This requirement can be met with rain water.

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Rain WaterRain Water is zero TDSis zero TDS is available in abundanceis available in abundance is soft wateris soft water is FREEis FREE

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