In order to meet the demands made by residents of Delhi, the board has approved projects pertaining to augmentation of drinking water, groundwater rejuvenation, construction of water museum and STPs.
Besides the construction of a water museum, the Delhi Jal Board, in its 146th meeting held on Wednesday, cleared projects pertaining to augmentation of drinking water, Clean Yamuna, groundwater rejuvenation and sewage treatment plants.
Water Treatment Plant
In the meeting chaired by the Delhi CM and chairman of the DJB, it was announced that for drinking water augmentation, a new water treatment plant (WTP) would be built at Chandrawal which would provide additional 48 crore litre per day of drinking water. Carrying the advanced technology of ozonation and activated carbon, the project would cost a total of Rs 598 crore to ensure uninterrupted functioning of the plant.
The plant, which will take 3 years to complete, will be able to treat ammonia content to the extent of up to 4 parts per million (ppm) in the Yamuna. Earlier, the plant had to shut down following the presence of 1 ppm of ammonia in the raw water, resulting in disruption of water supply in its command area. This will resolve the issue of frequent stoppage of WTP due to ammonia discharge by Haryana.
The board also accorded approval to the construction of a new Sewage Treatment Plant (STP) at Okhla at a total cost of Rs 1161 crore. Bearing capacity of 564 MLD (56 crores and 40 lakh litres) per day, it will be the largest wastewater treatment plant in India and one of the largest wastewater treatment plant in the world.
It will treat sewage to stringent effluent parameters of Biological Oxygen Demand (BOD) and Total Suspended Solids (TSS) <10 mg/l along with nitrogen and phosphorus removal and disinfection which will improve the quality of water in river Yamuna.
Ground Water Rejuvenation
Under this project, the Delhi Jal Board has approved the development of a lake of 40 acres to be created near Rajghat Bus Depot. For this, water will be sourced from Delhi Gate, which is right now discharging treated water into the Yamuna. The project will reduce 675 kg of organic load pollutant flowing into the Yamuna. The total cost approved for the project is Rs 36.51 crore.
14 STPs in the command of Najafgarh Drainage Zone
The Delhi Jal Board, in the meet, also approved construction of 14 sewage treatment plants (STPs) in the command of Najafgarh Drainage Zone, along with laying of internal sewerage system in the area.
Boost to conservation and augmentation of groundwater resources
The board further approved the policy of empanelment of institutions/firms/agencies for implementation of rainwater harvesting system in NCT of Delhi.
To encourage rainwater harvesting system including rooftop water harvesting, the empanelment of these agencies will go in a long way in conservation and augmentation of groundwater resources.
These agencies will actively promote and provide policy guidelines/ technical know-how regarding rainwater harvesting to the large population of Delhi. This will enable the common man to easily install a rainwater harvesting system in his house. Around 2 crore residents of Delhi will get benefitted with this project.
Water Museum at Kilokari
A project related to the construction of a water museum at Kilokri has got an approval by the board. The water museum will be constructed to disperse information related to water, rainwater and historical linkage of Delhi with River Yamuna.
Besides, it will also have a dedicated training centre for schools kids, professionals, RWAs, NGOs and public at large where training related to water conservation, rainwater harvesting, de-centralised wastewater treatment, waterbody conservation and lake rejuvenation, groundwater recharge, etc will be provided.
DJB has a 3 acre of land adjacent to the Kilokri SPS which will be used for the construction of the museum. The total cost of the project is Rs 12 crore.