To supply water to Chennai, government sanctions more than Rs 86 crores
Posted on: 01/Jan/2019 10:20:17 AM
In the Chennai city, the north-east monsoon has failed and Chennai did not receive sufficient amounts of water are well known. Now the government of Tamil Nadu has issued administrative sanction for more than Rs 86 crores to increase or augment water supply to city of Chennai. This supply of water would be under special initiative programme.
To replicate Indian institute of Technology or IIT Madras successful model of recycling and reusing sewage water to rejuvenate the water bodies, TN government has given its approval to the Chennai Metropolitan Water Supply and Sewerage Board or CMWSSB.
As per an official it is now clear that in the places in and around Chennai there is only less than 14 percent of water available in the water bodies. Hence rejuvenation of the water bodies is very important. Looking out for various possibilities in this regard, IITM model, where sewage water is being treated and pumped into the lake, has been adopted. The official later hinted about the advantages of this model and said recharging of groundwater plus creation of sustainable water source is possible by this.
Comprising of members of various working group is Water Working Group and a member of this group spoke about how creating perennial water source for Chennai city is very important and it is also the main objective of this programme. It is worth mentioning here that the government has passed an order to take up the works at a cost of amount of Rs 86.29 crores. This would be as a part of the drought contingency measure. It is brought out that nearly 70 million litres a day or MLD would be drawn from different sources to augment water supply to the city of Chennai in the coming months.
It is known that Chennai city requires 850 MLD of water and currently CMWSSB has been supplying 650 MLD of water. The important piece of information is in Chennai in a day an average of 530 to 580 MLD of sewage that is 99% water and 1% waste is being generated. An official shared his views and spoke about how the sewage water could be treated in primary, secondary and tertiary plants and how around 500 MLD could be reused. He added that it would be let into a well close to the water bodies for the sake of rejuvenation and sustainable water source would be created.
The point is decentralised water source augmentation with onsite treatment plants would be established in Rettai Eri, Perumbakkam and Ayanambakkam lakes at a cost of Rs 39.15 crores. By means of water distribution system in places like Kolathur, Sholinganallur, Karapakkam and Mogappair etc, 10 MLD of water would be pumped out from these lakes and supplied to consumers.
To meet the demand, the quantum of water pumped out of the lakes would be gradually increased and by this Chennai citys permanent water crisis could be put to an end. Replication in other parts of Chennai city would also be carried out in the future.
