BWSSB Explores IISc’s Zero Bacteria Technology for Apartment Sewage Treatment Plants
Introduction
The Bengaluru Water Supply and Sewerage Board (BWSSB) is set to revolutionize wastewater treatment in apartments by exploring the implementation of Zero Bacteria technology, developed by scientists at the Indian Institute of Science (IISc).
This cutting-edge technology aims to enhance the quality of treated wastewater, making it safer for reuse and reducing contamination risks. The initiative reflects Bengaluru’s commitment to sustainable water management as the city faces growing challenges related to groundwater depletion and pollution.
BWSSB Chairman Ram Prasath Manohar shared this development on Tuesday at the IGSTC Bilateral Workshop 2025, hosted at IISc, Bengaluru.
Why Bengaluru Needs Advanced Sewage Treatment
Bengaluru, often called the Silicon Valley of India, is experiencing rapid urbanization, leading to a significant strain on its water resources. Key concerns include:
- Rising groundwater depletion due to excessive borewell usage.
- Polluted water bodies from untreated or poorly treated sewage.
- Increased water demand due to population growth.
- To tackle these challenges, BWSSB is focusing on sustainable wastewater management solutions, and the Zero Bacteria technology developed by IISc is a major step in that direction.
What is Zero Bacteria Technology?
The Zero Bacteria technology, developed by IISc scientists, is designed to eliminate bacterial contamination from treated wastewater.
Key Features of the Technology:
- Complete removal of harmful bacteria from sewage-treated water.
- Enhances water quality, making it suitable for non-potable reuse in gardening, flushing, and groundwater recharge.
- Reduces dependency on freshwater sources, promoting sustainable water use.
- If successfully implemented, this innovative solution will ensure apartment sewage treatment plants (STPs) in Bengaluru produce safer, high-quality treated water.
BWSSB’s Collaboration with IISc & Other Agencies
To strengthen water sustainability in Bengaluru, BWSSB has formed a task force that includes:
- Indian Institute of Science (IISc)
- Central Groundwater Authority
- BWSSB
This team is working on:
- Monitoring borewells to track groundwater extraction.
- Using Artificial Intelligence (AI) to assess water levels and detect misuse.
- Developing strategies for efficient water utilization, especially during summer months.
- By leveraging AI and advanced technology, BWSSB aims to prevent groundwater depletion and ensure a sustainable water supply for the city’s growing population.
The Importance of Water Security in Bengaluru
Speaking at the IGSTC Bilateral Workshop 2025, BWSSB Chairman Ram Prasath Manohar emphasized the critical need for water security in Bengaluru.
Why Water Security is Essential?
Preventing Future Water Shortages:
- Bengaluru is highly dependent on Cauvery River water and borewells.
- Sustainable solutions are needed to meet future demand.
Reducing Water Pollution:
- Untreated sewage contaminates lakes, rivers, and groundwater.
- Advanced treatment technologies like Zero Bacteria can prevent this.
Promoting Sustainable Urban Development:
- With increasing real estate and apartment complexes, managing sewage and water recycling is crucial.
- Better wastewater treatment = Less strain on natural resources.
- By adopting innovative technologies like Zero Bacteria and AI-based groundwater monitoring, Bengaluru can secure its water future while reducing pollution and wastage.
Conclusion
The BWSSB’s collaboration with IISc to implement Zero Bacteria technology marks a significant milestone in Bengaluru’s water sustainability efforts.
With advanced wastewater treatment, AI-based groundwater monitoring, and strategic partnerships, the city is taking proactive steps to manage its water crisis.
As Bengaluru continues to grow, adopting innovative and sustainable solutions will be key to ensuring long-term water security for its residents.
Stay tuned for further updates on this groundbreaking initiative!