For the people in Mumbai, 2014 ushered in a change like never before. Like several other changes, this one meant to improve availability of potable water was hardly noticed.
The project was a big step towards the Water Reuse, Recycle initiative under public – private partnership. The project is based on ‘Rotating Media Biological Reactor (RMBR)’, which has been installed with complete financial support from Hindustan
The 2011 census put Mumbai’s population at 12.44 million, making it India’s biggest city in terms of number of residents. If the project can be made to work in India’s biggest city under the public-private partnership model, it could serve as the way ahead for other cities too.
Earlier, the MCGM’s Bandra treatment facility used to do primary treatment and release 425 MLD (Million Litres per Day) of partially treated sewage in the sea by a submarine outfall of about 5 km length. It used to discharges huge amounts of sewage water at four places into the sea - Malavani, Varsova, Mahim causeway (Bandra Reclamation) and Colaba.
Now, the MCGM reuses this water with the help of the second level sewerage treatment plant at the above mentioned places which saves a lot of precious potable water.
The initiative is aimed at saving fresh water resources by using treated sewage water for non-drinking and non-domestic purposes. The recycled water can be used for horticulture, cleaning among other purposes. This project serves multiple purposes in one go and has also become a catalyst for similar projects across the country.