Sunday, November 20, 2016

Bangalore's Capacity to Treat its Wastewater

Over the last 60 years, Bangalore has witnessed a huge growth in its ever growing population. The city was home to over 778,977 people in 1951 is currently home to over 11.5 million people in 2016. Rapid Industrialization and urban development in the city has led to a tremendous growth in its population. 

This has also meant that the water use has increased and  so is the quantum of wastewater produce. The statutory organization Bangalore Water Supply and Sewerage Board (BWSSB) was set up in 1964 under the BWSSB Act whose core functions & responsibilities include 



  • Providing water supply & sewerage and sewage disposal systems.
  • Ensuring sufficient domestic water supply to the required standards.
  • Levying & collecting water/sanitation charges on a no loss/no profit basis.


  • Among other practices followed to treat wastewater, BWSSB has a network of centralized treatment system, where 'Blackwater' (water coming out of the toilets) is transported to Sewage Treatment Plants (STPs) with the help of sewer lines. The city has 14 such facilities to treat wastewater using different technology and several more are proposed to augment the treatment capacity. According to the BWSSB estimates, the quantum of the sewage generated was 985 MLD in the year 2011, which would increase to 1320 MLD by the year 2021.



    Sl no
    Location
    Capacity in MLD
    Treatment Facility
    1
    Vrishabhavathi Valley
    180
    Secondary –Trickling filters
    2
    K & C Valley I
    248
    Secondary: Activated sludge process
    3
    Hebbal Valley
    60
    Secondary: Activated sludge process
    4
    Madivala
    4
    Secondary: UASB + oxidation ponds+ constructed wetlands
    5
    Kempambudhi
    1
    Secondary: extended Aeration
    6
    Yelahanka
    10
    Activated sludge process + filtration+ chlorination (Tertiary)
    7
    Mylasandra
    75
    Secondary –Extended aeration
    8
    Nagasandra
    20
    Secondary -Extended aeration
    9
    Jakkur
    10
    Secondary –UASB +Extended aeration
    10
    K. R. Puram
    20
    Secondary –UASB +Extended aeration
    11
    Kadabeesanahalli
    50
    Secondary-Extended aeration
    12
    Rajacanal
    40
    Secondary-Extended aeration
    13
    Cubbon Park
    1.5
    Membrane
    14
    Lalbagh
    1.5
    Extended Aeration + Plate Settlers + UV disinfection

    Total Existing Treatment Capacity
    721

    List of the Existing Sewage Treatment Plants in Bangalore with their respective capacity. 



    Did you know which is the nearest STP from your location?  You can know it with the help of a click.



    It was easy to locate some STPs with the exact coordinates, but there are a few others which are marked based on the name of region. Therefore, if you have the exact coordinates for some STPs, then kindly share with us. This will help us to improve the details on the map.  


    Apart from this, what are other layer of information you want us to highlight in the map? Do let us know. 







    References

    http://www.indiaonlinepages.com/population/bangalore-population.html

    V.C Kumar, Potential of STP's in Bangalore, Executive Engineer, BWSSB














































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