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BEL to Set up Rs. 13.5 Crore sewage Treatment Plant to Restore Doddabommasandra Lake CSR

BEL to Set up Rs. 13.5 Crore sewage Treatment Plant to Restore Doddabommasandra Lake


Banglore: Bharat Electronics Ltd, is setting up a 10 MLD (million litres per day) Sewage Treatment Plant to rejuvenate the Doddabommasandra Lake at a cost of Rs. 13.5 Cr. BEL has taken up this initiative — a first-of-its-kind — as part of its Corporate Social Responsibility activities, in collaboration with the Karnataka Lake Conservation and Development Authority (KLCDA), BBMP and the Revenue Department.
The foundation stone for the installing and commissioning of the proposed Sewage Treatment Plant was laid today (Saturday, February 17, 2018) by the Chief Guest Mr. D V Sadananda Gowda, Hon’ble Union Minister for Statistics and Programme Implementation, Government of India. Mr. Krishna Byre Gowda, Hon'ble Minister for Agriculture, Government of Karnataka, presided over the function. Mr Sampath Raj R, Hon’ble Mayor, BBMP, Mr Gowtama M V, CMD, BEL, and Mr Nataraj Krishnappa, Director (Other Units), & Chairman, CSR Apex Committee, BEL, were also present.
The Doddabommasandra Lake contributes to recharging of groundwater in the Doddabommasandra watershed region. The lake covers an area of 50.31 hectares (124.35 acres). The Doddabommasandra watershed region replenishes the groundwater table of Vidyaranyapura, Govindayyanapalya, Doddabommasandra and Thindlu areas. 
Rainfall is the only source of water for this lake, which is presently running dry. Even the water collected during the monsoons is lost due to percolation and evaporation. The lake is fast being depleted of its biodiversity and socio-ecological balance.
BEL proposes to replenish the lake with wastewater treated at the proposed plant and create a large water body, rich in biodiversity.
The Sewage Treatment Plant will be designed on the latest ‘Sequential Batch Reactor Technology’ (SBR). This is an advanced version of the well-established ‘Activated Sludge Process’ of the Central Public Health and Environment Engineering Organisation (CPHEEO). 
The sewage is fed into the SBR Units for biological treatment involving organic matter degradation, nitrification, de-nitrification and phosphorous removal. The oxygen required for the process is supplied through ‘Fine Bubble Diffused Aeration System’ with auto control of oxygen levels in the basin. The complete operation, including filling of sewage, aeration, sludge recirculation and decanting will be SCADA/PLC-controlled.
The treated water, after meeting Pollution Control Board norms, will pass through the wetland comprising aquatic plants before flowing into the lake. 
BEL will construct the sewage treatment plant in the next 18 months and will maintain it for a period of 20 years.
Benefits to stakeholders.
The benefits of such a plant include recharging of groundwater, reduction of sewage load on the BWSSB treatment plant, improved groundwater table in areas in and around the lake which is home to a population of about 3 lakhs, prevention of pollution due to untreated sewage, favourable conditions for the growth of fauna and flora, improved microclimatic conditions leading to a balanced ecological system, new recreational opportunities for fishing, bird watching and educational visits.

Posted Date :  17-02-18

Categories : CSR