The Waste Water Management (WWM) zone in BWSSB is in charge of collection, conveyance, treatment and safe disposal of waste water generated in the area of BBMP. It includes laying and maintenance of 400 mm and above sized sub mains, mains and outfall sewers of the city in addition to the contraction, operation and maintenance of the wastewater treatment plant to treat the waste water to the standards prescribed by KPSCB. At present this zone is maintaining about 1498 Kms of sewer lines and 27 wastewater treatments plants of total capacity 1112.50 MLD which will be increased to 1583.50 MLD by adding 9 more STPs by the end of September 2020. WWM zone is also looking after re-use of treated water for non portable purposes.
The expanding Bengaluru has been witnessing a rapid increase in population and had registered a 40% growth since a couple of decades, and now reached a whopping 125 lakh population mark! Drinking water to Bengaluru is being pumped at an altitude of 1500 ft, from an approximate distance of 100 Km away from city. The City’s underground water level has depleted by 1000ft to 1200ft which is alarming. Hence, water has become a precious commodity now.
The Water Board has already installed 25 Waste Water Purifying/ Processing Units in various places, of which 4 are Third Stage Purifying Units, where treated waste water is being used of Re-usage. The Third Stage Treated water can be availed for Re-use and installation of 11 additional units are in progress. Apart from this, 16 other waste water processing units are being initiated by the Water Board. These waste water purifying units are intended to be completed by the year 2023-24, and thus the total waste water purifying units overall capacity would be 1713.50 million litres daily, by the year 2023-24.
List of STPs in BWSSB | |||||
---|---|---|---|---|---|
Sl.No | Name | Capacity in MLD | Location near to | Level of Treatment | Types of process for treating sewage |
Existing | |||||
1 | K&C valley | 248 | Belur Nagasandra (near Challaghatta) | Secondary | Activated Sludge Process (ASP) |
2 | K&C Valley | 60 | Belur Nagasandra (near Challaghatta) | Secondary | ASP with power generation |
3 | Lalbagh | 1.5 | Lalbagh kere | Tertiary | Activated aeration + plate settlers + UV disinfection |
4 | Cubbon Park | 4 | Cubbon Park (upgraded) | Tertiary | Membrane Bio Reactor |
5 | K.R.Puram Ph-I | 20 | Tambuchetti playa Road | Secondary | UASB + Extended Aeration |
6 | Yelemallappa Chetti kere | 15 | Yelemallappa Chetti kere | Secondary | Sequential Batch Reactor |
7 | Bellandur Amani kere | 90 | Vartur kere | Secondary | Activated Sludge Process (ASP) |
8 | Kadabeesanahalli Ph-I | 50 | Marathalli Outer Ring Road | Secondary | Extended Aeration |
9 | Kadugodi | 6 | Kadugodi | Secondary | Sequential Batch Reactor |
10 | Halasuru | 2 | Halasuru Lake | Secondary | Sequential Batch Reactor |
11 | Rajacanal - Ph-I | 40 | Geddalahalli near Hebbal | Secondary | Extended Aeration |
12 | Hebbal | 60 | Nagavara kere | Secondary | Activated Sludge Process (ASP) |
13 | Jakkur | 15 | Jakkur kere | Secondary | Upflow Aerobic Sludge Blanket (UASB) + Extended Aeration |
14 | Yelahanka Ph-I | 10 | Allalasandra kere | Tertiary | Activated sludge Process (ASP) + filtration + Chlorination |
15 | Rajacanal | 40 | Geddalahalli near Hebbal | Secondary | Sequential Batch Reactor |
16 | Horamavu Agara | 20 | In between Kalkere and Horamavu Agara kere | Secondary | Sequential Batch Reactor |
17 | Nagasandra Ph-I | 20 | Near Madavara kere (near Tumkur Road) | Secondary | Extended Aeration |
18 | Mallathahalli | 5 | Mallathahalli kere | Secondary | Sequential Batch Reactor |
19 | Nagasandra | 20 | Near Madavara kere (near Tumkur Road) | Secondary | Sequential Batch Reactor |
20 | Chikkabanavara | 5 | Chikkabanavara kere | Secondary | Sequential Batch Reactor |
21 | Mailasandra Ph-I | 75 | Mailasandra | Secondary | Extended Aeration |
22 | V.Valley | 180 | Mysore Road | Secondary | Two stage high rate trickling process |
23 | Kempambudhi | 1 | N.R.Colony | Secondary | Extended Aeration |
24 | Doddabele | 20 | Doddabele | Secondary | Sequential Batch Reactor |
25 | Kengeri | 60 | Near Kengeri bus stand | Secondary | Secondary-Activated Sludge Process |
26 | Doddabele | 40 | Doddabele | Secondary | Sequential Batch Reactor |
27 | Sarakki | 5 | Near Sarakki Lake | Secondary | Sequential Batch Reactor |
Total | 1112.5 |