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