Featuring the best of green in Chennai

Bhabha Atomic Research Centre's technology helps in restoring city's lake


BARC is set to restore Villivakkam lake through natural wastewater technology developed by them.

Product or concept

  • BARC has developed the Hybrid Granular SBR (Sequencing Batch Reactor) that treats natural waste water.
  • Greater Chennai Corporation will be adopting this for Villivakkam Lake Restoration.

Problem being solved

To reduce pollutants In the water stressed city’s lake.

Process or technology involved

Bhabha Atomic Research Centre’s (BARC) treatment of wastewater in a natural process involves the following:

  • Natural microbes present in the wastewater are used for removing contaminants.
  • Through series of processes, the technology reduces the BOD and COD levels in wastewater.

Sustainability benefits

  • Relieves water supply demand to a certain level by increasing groundwater levels.
  • Ensures water quality is safe for aquatic life to survive.

User segments that will benefit

  • Apartment/Residential Complexes
  • Municipal Corporation
  • CSR Departments of Corporate Companies.
  • Government of India’s Environmental Mission.

People or organizations involved

  • Greater Chennai Corporation
  • Bhabha Atomic Research Centre’s

Innovations or USPs

  • No chemical addition is needed for nutrient removal.
  • After suitable treatment, excess microbial sludge harvested in the process can be used as chemical fertilizer-supplement to benefit organic farming.

Related engineering, science or business topics

  • Biotechnology
  • Chemical Engineering
  • Mechanical Engineering
  • Water and Waste Management

Awards & recognitions

Villivakkam Lake will be the first ever Indian lake to have been brought back to life through recycled wastewater.

Other interesting highlights

Greater Chennai Corporation has also requested for BARC’s technical guidance and support for its efforts in restoring the 6-km Mambalam canal. 

Lake to be restored located at:



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Know more about the people behind this

Bhabha Atomic Research Centre : Pioneers in nuclear research and power production in India.

Make a visit to get a first-hand experience

Bhabha Atomic Research Centre (BARC) : Scientists at BARC innovated the technology to provide more efficiency in the treatment processes.

Greater Chennai Corporation : The corporation is planning to use the technology and the process developed by Bhabha Atomic Research Centre (BARC) to clean the Villivakkam Lake. The Greater Chennai Corporation wards are located all over Chennai. To find out more information, you can contact the one closest to you.

Involve yourself/participate in activities

Purchase the product/solution

Connect with experts

Bionic Enviro : Bionics Enviro has over two decades of experience in providing wide range of research solutions for biological wastewater treatment problems. One can contact them to visit the wastewater treatment plants set up across the state.

CSIR - National Environmental Engineering Research Institute : CSIR-NEERI has various courses and experienced researchers working in wastewater treatment processes. One can contact the head of the labs and visit the centre.

Experiment through do-it-yourself projects

DIY Water Treatment Train : The article provides instructions on building the various treatment processes in a wastewater treatment plant for your home.

TUTORIAL - How to DIY build your own sewage system : The video provides a step by step approach in building a wastewater treatment plant for your home.

EXTREME Do-it-Yourself Resilience: A Home Scale Waste Water Treatment Plant : The article provides details to build a home-scale wastewater treatment plant.

Learn more

Microbes – friend or foe? : The article examines the various steps involved in wastewater treatment plants using microbes.

Can We Reuse Polluted Water? Yes, Add Bacteria : The article explores how microbes help in cost effective treatment of wastewater in cities.

What is Wastewater Treatment? : The article scans the different processes involved in treating wastewater.