Hyderabad: The Buddha Purnima Project environmental wing of the Hyderabad Metropolitan Development Authority (HMDA) will sell eight million litres of non-potable water per day through three filling stations that will be constructed on Necklace Road in the coming months.
Though 50 million litres of treated water from two Sewerage Treatment Plants (STP) flows into the lake daily, Hussainsagar needs only 35 MLD for lake balance. Of the remaining 15 MLD, the civic body will use 7 MLD for landscaping and gardening around the water body and the rest will be sold. This the first time the lake’s water is being recycled and sold.
Member environment, BPP-HMDA R.P. Khajuria said that the non-potable treated water can be used for irrigation, construction, landscaping, gardening and washing purpose.
Two construction firms have approached the BPP and GHMC authorities and Imax has come forward to purchase as well. The price per tanker will be as per current borewell tanker charges.
According to the BPP officials, the South Central Railway has also come forward to accept 1.10 MLD recycled water (0.6 MLD at Nampally railway station and 0.5 MLD at Kacheguda station).
The treated water contains dissolved oxygen less than 3 milligrams per litre (mg/l), residual chlorine from 0.1 to 0.2 mg/l, and other elements like nitrogen, phosphorus, coliform and suspended solids.
“The main pipeline towards each filling station is designed to supply 450 cubic metres per hour to cater to demands in addition to filling tankers,” an official added.
Recycled Water availability
Tanker filling stations: 3 on Necklace Road
Filling points at each station: 4 (total tanker filling point 12)
Volume of each tanker: 10,000 litres
Maximum water flow at each filling point: 69 cubic metre per hour)
Time taken to fill a tanker: 10 minutes
Tanker filling capacity of each filling point: 4 tankers per hour (filling capacity at each station is 16 making it 48 tankers per hour for all centres combined)
Water consumed for tanker filling: 480m3 per hour
Total recycled water supplied through tankers over 8 hours - 3840 m3/8 hrs...