Decentralised Waste Water Treatment > Case Studies

Raja Canal Sewage Treatment Plant - Bengaluru, Karnataka

 
Key Highlights of the Projects
 
Year of Commission

2016
Total Installed Capacity 130 MLD
Total Utilization Capacity 130 MLD
Treatment Technology Sequencing Batch Reactor with tertiary treatment
Current Reuse Thermal Power Plant (Cooling Purpose)
Volume of Water Reuse Daily 130 MLD (Tertiary Treated)
Quality of treated water (Outlet) pH- 7.4. BOD-3.6mg/l, COD-11mg/l, TSS-2.3mg/l
Economics NA
 
Project Overview
 

• BWSSB commenced tertiary treatment of secondary treated water from Raja Canal STP for industrial use.
• Joint project between BWSSB and Karnataka Industry for the Aerospace Park near Kempegowda International Airport (Asia’s largest aerospace hub).
• Tertiary Treatment Plant (TTP) located at IT Park Industrial Area, Devanahalli.
• Commissioned in 2017 with a capacity of 45 MLD.
 
Implementation Cost
 

• 18 km dedicated pipeline connects Raja Canal STP to TTP.
• Total project cost: ₹114 crore, funded by Karnataka Industrial Area Development Board.
• BWSSB operates the plant; O&M contracted to SUEZ.
 
Current Operations
 

• Operating below capacity, treating only 5 MLD due to low industrial demand.
• Treated water stored in a 45 MLD sump and supplied as per demand.
 
Industrial Usage and Pricing
 

• Primary use: Horticulture within industrial premises.
• Water charges:
• ₹25/KL (end-to-end distribution).
₹18/KL (direct procurement by industries).
 
Quality Monitoring
 

• In-house and third-party lab tests conducted monthly.
 
Quality parameters
 

• pH: 7.68, Dissolved Oxygen: 4.4 mg/L, Biological Oxygen Demand: 3.2 mg/L, Chemical Oxygen Demand: 7.2 mg/L, Total Suspended Solids: 3.8 mg/L
 

 

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