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Alternatives to rainwater harvesting

Decision to implement five thousand projects in Mumbai to solve the water problem

Namita Dhuri
Mumbai: The Municipal Corporation has started taking measures under the Environmental Action Plan to solve the water crisis facing Mumbai despite torrential rains and 5,000 rainwater harvesting projects will be operational in Mumbai in the next few months.

As a result of the growing population, there has been a huge increase in pollution in Mumbai. Mumbai is now beginning to feel the effects of the deteriorating climate. As the surface temperature rises, so does the air temperature. Rainfall schedule is bad. As some days of monsoon are very dry, the municipality has to cut off water. On the other hand, the expected rainfall over a long period of time falls in a few hours. Proper management of water will be done through rainwater harvesting project to avoid economic and loss of life in such a situation.

What will the project look like?

5 drainage pits will be constructed in 1 thousand 40 parks of the municipality. After that, it is planned to construct drainage pits at Police Station, Fire Station and Vindhan Vihiri (Borewell). The project has already been set up in more than 100 municipal schools. The original concept of the project is by Shubhjit Mukherjee and the corporation is implementing the project under his guidance. ‘Mumbaikars use 35% of their water every morning only for toilets. There is no shortage of water in Mumbai; However, water is being wasted as a lot of water is being wasted, ‘said Mukherjee.

Needs and benefits

Due to large scale concreting in Mumbai, water does not seep into the soil. As a result, groundwater levels are declining. Cement concrete also retains heat, which also heats the surface environment. As a result, the amount of oxygen is reduced. Seawater is pushed back as rainwater seeps into the ground; However, without rainwater seepage, seawater seeps into the ground. This weakens the roots of the tree. Rainwater harvesting will increase groundwater levels, keep the climate cool, strengthen tree roots, and provide adequate space to carry water.

How to format?

A 6-foot hole is dug and a 4-foot drum is placed in the middle. Stones are placed around and below the drum. Fine holes are drilled on all sides of the drum. Also the water flowing from the roof is discharged into the drum through a PVC duct. The water that accumulates around the drum flows through the rocks and descends into the drum. Without retaining water in the drum, it descends through the holes into the rock below and slowly seeps into the ground.

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