The Coimbatore Corporation, PSG, and Siruthuli have signed a Memorandum of Understanding to establish a Centre of Excellence for sustainable water and waste management [1].
This partnership aims to modernize urban infrastructure in Tamil Nadu by shifting away from centralized systems toward more flexible, nature-based environmental protections. By integrating academic research with municipal governance and NGO activism, the city seeks to create scalable models for water recovery and waste reduction.
The new center will prioritize the development of decentralized sewage-treatment systems [1]. Rather than relying solely on massive, single-point treatment plants, the initiative focuses on localized solutions that reduce the energy and cost associated with transporting waste across the city.
To achieve these goals, the partners will implement several nature-based solutions [1]. These include the use of constructed wetlands, and stabilization ponds to filter water naturally. The center will also explore phytoremediation, phyco-remediation, and bioremediation — processes that use plants, algae, and microorganisms to remove contaminants from polluted soil and water [1].
Coimbatore is leveraging the technical expertise of PSG and the environmental advocacy of Siruthuli to ensure these systems are both scientifically sound and community-supported [1, 2]. This collaborative approach allows the city to test experimental biological treatments before deploying them on a wider urban scale [1].
“The center will prioritize the development of decentralized sewage-treatment systems.”
This agreement signals a strategic shift in Indian urban planning toward 'green infrastructure.' By focusing on decentralized, biological treatment methods rather than traditional chemical or mechanical plants, Coimbatore is attempting to lower the carbon footprint of its utility services while restoring local ecosystems through bioremediation.
