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.

I have marked the following STPs on a map, which would help you locate the nearest STP. You can click on the link below to see the map.

https://fusiontables.google.com/embedviz?q=select+col2+from+1CT2LtffXi5GHTDIHaYdypjCi6s6VJGWWzsbaDoNs&viz=MAP&h=false&lat=13.000456089209473&lng=77.6922489318847&t=1&z=11&l=col2&y=5&tmplt=6&hml=TWO_COL_LAT_LNG

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