The city of Mumbai gets 3637 MLD* of water from 5 lakes (Bhatsa, Upper vaitarna, Middle Vaitarna, Tulsi, Vihar). The water deficit in the city is of 1263 MLD*
*MLD = Million Litres Daily
CONSIDERATIONS:
Increase in demand - Increase in population
Decrease in demand - Assuming 5% of the people will switch to water efficient fixtures (reducing 30% consumption)
Increase in supply - Increase in number of reservoirs supplying water [source augmentation]
- Decrease in losses during transportation [On going projects]
Who is consuming the BMC water?
There are various levels of action which will help in bridging the gap.
For this project we have focused on macro level strategy as doing it in public places will be noticed by masses making them aware & they can then do it at their respective places.
After collection, the water can either be stored in tanks or recharged.
Storing the water in tanks gets practically unviable as
- Storage is much more expensive than recharge.
- Storing all the rain water in a tank is difficult
- The stored water wouldn’t last beyond monsoons & tank gets redundant.
Hence after collecting water, it is recharged.
In order to maximise the recharge it has to be recharged at the bed rock level through a bore well.
For maximum water to be recharged, it needs to sent under the surface soil layer into the bed rocks.
This can be done by sending all the water down with the help of a bore well into the water table.
A presentation was made for the unveiling the outcome of the project.
A prototype had been made to showcase & explain its functioning.
They are modular to adapt to variety of public spaces - parks, gardens, maidans, recreational grounds, promenades, beaches & roads.
