Taking its first step in direction of making handled sewage water fit to be eaten – the Brihanmumbai Municipal Company (BMC) is ready to improve certainly one of its present Sewage Therapy Plant (STP) with a capability of 15 million liters (MLD) into an Superior Tertiary Plant (ATP) that might disinfect and recycle sewage water, making it match for potable use.
At current, Mumbai generates 2,190 MLD of sewage day by day, of which solely 22.65 MLD or 1% is being recycled for non-potable utilization. The remaining quantum of untreated water will get flushed out from town via the sewage outfalls into the ocean and creeks. To mitigate this concern, the BMC had initiated a Rs 28,000 crore STP mission in 2023 underneath which it goals to assemble seven STPs with a complete capability to deal with 2,464 MLD of sewage day by day. These STPs are anticipated to grow to be operational by 2026 onwards in a phased method.
The BMC presently has 4 practical STPs at Colaba, Banganga, Chembur and Charkop.
Of those 4 STPs, the Colaba STP which is in operation since 2020, is the biggest, having a most capability to deal with as much as 37 MLD of sewage day by day. Nevertheless, as of immediately this STP recycles solely 15 MLD of sewage day by day.
At current, the handled water from this STP is getting used for non-potable utilization like gardening, cleansing of roads, firefighting and washing automobiles. Due to this fact, as a way to make this water fit to be eaten the BMC is discussing a proposal to improve it.
“At current, this STP features as a tertiary water therapy facility which recycles the water to an extent of creating it match for non-potable utilization. Now, our plan is to improve this plant into an Advance Therapy Plant (ATP) in order that the recycled water turns into fit to be eaten,” mentioned a civic official aware about this mission.
The official maintained that this step is being taken as much as bridge the hole of demand and provide of water in Mumbai. At current, Mumbai requires 4,200 MLD of water day by day, of which BMC is ready to provide 3,850 MLD.
As soon as the STP is prepared, civic officers mentioned {that a} distribution channel shall be arrange, via which handled water shall be provided to residential and business items for potable utilization. The civic authorities maintained that recommendations and objections can even be invited from residents earlier than making this plant operational.
“The water shall be disinfected and a strategy of mineralisation shall be carried out in order that the general high quality of recycled water matches up with the standard of ingesting water being provided by the BMC day by day,” mentioned the official.
The official maintained that tenders for appointing a contractor for this mission shall be floated subsequent 12 months. This shall be a pilot mission and after its completion an analogous mannequin shall be carried out on the remaining operational STPs at Banganga, Chembur and Charkop.
In the meantime, the seven new therapy crops that are being constructed are going to be ATPs geared up to recycle water for potable utilization from the start. Civic officers predict that these STPs, as soon as operational, will cut back the shortfall of water in Mumbai by a big margin.
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