Lake Rejuvenation by Secondary Treated Wastewater

440 MLD Secondary treated water from KC valley and Bellanduru STP in Bangalore is being pumped to fill 126 tanks of Kolar district.

Lakshmipura Lake

On Tuesday 2^nd July 2019, we visited Lakshmisagra Lake, the first lake in the series of lakes revived by treated waste water. Daily 440 MLD of secondary treated waste water from 56 km far is being discharged into the lake which overflows through the other end and is flows into the next lake. 

Lake Inlet

Inlet Channel

Overflow at the Outlet

This water is to be utilized just for ground water recharging and not for drinking or irrigation. Though, the surrounding farmlands were using this water through one open well which was completely filled, for their irrigation. They were growing various crops like tomatoes, chilies, cauliflower, and many more. Due to the lake, ground water table was quite high in that region.

Open well near the lake

Farmlands irrigated due to the open well

High water table

Many species of native fishes are also added in the lake. They act as bio-indicator to assess quality of water.A total of 1280 crores INR is estimated for the entire project.

Due to waste water, these lakes will be filled for the full year. So the farms will get water throughout the year, benefitting their yield.

By 
Kavina, Kruthika, Milan, Shimoli, Surabhi