Bengaluru's largest lake catches fire yet again; waste burning, untreated sewage to be blamed

Bellandur, the largest lake in Bengaluru, caught fire on Thursday (February 16) evening after a garbage mound around it was set ablaze. Dry hyacinth and weed around the lake also caught fire further, intensifying the situation. The possibility of toxic chemicals, which are dumped into the lake, causing the fire to flare up cannot be ruled out.

In May 2015, the foam covering the water surface caught fire and burned for hours.

While illegal dumping of garbage on the banks of the lake is a persistent issue, the locals allege that weeds and dry grass are also regularly burnt in the area without supervision by garbage collectors.

The extent of the fire was such that it almost engulfed the entire lake. The smoke not only reached a nearby flyover, but also caused a scare among residents and motorists on the busy Sarjapur main road.

The local authorities are in state of denial and blamed it on the dry grass in the vicinity.

The locals have time and again approached the civic authority to stop the discharge of chemicals and other toxic substances from factories and households into the lake. Pollution regularly causes the Bellandur Lake to froth so heavily that the foam is on nearby roads. Often, flames are seen leaping off the water because of the phosphorus and oil on the surface.

Heres a tragic sight that sums up expolitation n killing of #Bengaluru ! #Bellandur lake on fire this morningpic.twitter.com/4DTF7QzZwT

— Rajeev Chandrasekhar (@rajeev_mp) February 17, 2017

Experts had often pointed out to a huge amount of sewage flows from Bellandur Lake to Varthur Lake due to the failure of Bangalore Water Supply and Sewerage Board (BWSSB) to manage the sewage of the city.  Bellandur, along with Varthur—the other major lake in Bengaluru— has been ruined because of the constant dumping of untreated sewage and toxic chemicals from small factories. The BWSSB has certainly failed to divert sewage water.

According to the Karnataka State Pollution Control Board Chairman Lakshman, notices have been issued to the BWSSB and other agencies to stop the dumping. He added that the board is in the process of inspecting sewage treatment plants in the area.

In April 2016, activists from the Namma Bengaluru Foundation had submitted an action plan to Bengaluru Development and Town Planning Minister K J George to rejuvenate this 131-year-old water body.

Talking to Down To Earth about the progress since then, Sridhar Pabbisetty, the CEO of Namma Bengaluru Foundation, says, “Government constituted an expert committee, with Namma Bengaluru Foundation, ATRI, Ministry of Science and other institutes as its members. After deliberating on means and ways to rejuvenate the lake, we submitted a report few months back, recommending short-term, mid-term and long-term measures.”

The government has accepted the short-term measures, which included de-weeding and improving aeration by installing a fountain. “I hope the government comes up with a plan for a time-bound implementation of the measures,” says Pabbisetty.  

The long-term measures, recommended by committee, included installation of sewage treatment plants (STPs) of 90 million litres per day (MLD) at Ammanikere, 60 MLD at Koramangala and Challaghatta valleys and 150 MLD to treat water from Koramangala and Ejipura drains.

Commenting on the fire incident, he says, “Yesterday’s fire was alarming. Fumes could be seen from quite a distance. We hope that the pollution control board finds out the reason and nature of the flame so that health hazards can be averted.”

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