Project Overview
The Hebbal Sewage Treatment Plant (STP) in Bengaluru is a landmark in sustainable wastewater management — combining large-scale sewage treatment with energy recovery and water reuse.
Delivered under an EPC + O&M contract for the Bengaluru Water Supply and Sewerage Board (BWSSB), the project integrates:
1.A 100 MLD STP based on Sequencing Batch Reactor (SBR) technology with advanced BNR.
2.A 160 MLD sludge handling facility with advanced anaerobic digesters.
3.A 1.0 MWe biogas power generation system, making the plant nearly energy self-sufficient.
4.Fine filtration systems enabling reuse of secondary treated water for irrigation.
The Challenge
!Managing sewage at scale for a growing urban population.
!Rising power costs and the environmental impact of conventional energy use.
!Ensuring compliance with Pollution Control Board norms.
!Meeting sustainability goals for reuse of treated water.
The Results
✓100 MLD sewage treated daily, protecting Bengaluru’s environment and waterways.
✓1.0 MWe renewable energy generated, reducing reliance on external grid supply.
✓Operational cost savings from biogas-to-energy integration.
✓Treated water reused for irrigation, conserving freshwater for citizens.
✓A model of decarbonised water treatment, aligning with circular economy goals.
Why It Matters
The Hebbal STP demonstrates how wastewater treatment can become a resource hub — producing clean water, renewable energy, and environmental benefits. As India’s first large-scale STP of its kind, it sets the stage for future-ready, self-sustaining urban utilities.
