Question

undertaking rainwater harvesting in schools essay on karnataka​

Answer 1

Answer:

The schools for rainwater harvesting have been selected on the basis of not having any source of drinking water currently construction component of the programme is being implemented by the Engineering Department of the various Zilla Panchayat or the District Nirmithi Kendra.

Many schools presently do not have a reliable source of water for drinking and other purposes. The school rooftop rainwater harvesting system seeks to provide a source of water for toilet flushing, cooking, washing hands and feet before eating and after toilet use, hygiene and finally, for drinking purpose – if the water is treated well.

The amount of rainwater that can be collected depends on the rooftop area, the size of the tank and the rainfall at that place. For example, in a place where it rains 500mm and the roof area is 100sqm, the rainwater falling on the roof is 50,000 litres. Some amount of it will be absorbed by the roof and some amount will be lost in the collection process. If we assume 80% can be collected, then 40,000 litres of rainwater is available for collection.

Depending on the size of the rainwater tank and the distribution of rainfall, even a 3000-litre tank may be sufficient to collect this 40,000 litres of rainwater. We must, however, keep on using the rainwater in the tank and not wait for summer to use it. By painting an information board and keeping a small rain gauge in the school, a good school can involve students in monitoring rainfall, total rain in a year, water collected in the rainwater tank and teach them to ensure good maintenance of the system.