Project Overview
The 15 MLD Common Effluent Treatment Plant (CETP) at Sarigam, Vapi was commissioned by Gujarat Industrial Development Corporation (GIDC) to address the challenges of treating complex industrial effluents from multiple industrial units.
The plant features a unique eight-stage treatment system that ensures compliance with stringent environmental standards while enabling safe discharge or potential reuse.
The treatment process includes:
- Preliminary treatment
- Ammonia stripping
- Physical treatment
- Two-stage extended aeration system
- Advanced oxidation system
- Tertiary clariflocculation
- Filtration system
- Activated carbon filter
Project Objectives
- To treat complex and variable industrial effluents generated by multiple industries within Vapi.
- To ensure treated water meets CPCB and GPCB environmental norms.
- To enable safe discharge into the environment or reuse in industrial processes.
The Challenge
Industrial clusters often generate highly complex and variable effluents, containing ammonia, organics, and difficult-to-treat compounds. Achieving compliance while ensuring consistent plant performance demanded advanced and carefully integrated processes.
The Solution
Enviro designed a comprehensive multi-stage treatment process, integrating physical, chemical, and biological systems to address a wide range of contaminants. The two-stage extended aeration system combined with advanced oxidation and activated carbon polishing ensured stable performance and high effluent quality.
The Results
- Consistent treatment of 15 MLD of complex industrial effluent.
- Compliance with stringent discharge standards for ammonia, BOD, COD, and TSS.
- Enhanced protection of the local environment and water bodies.
- Demonstrated a scalable model for treating industrial cluster effluents.
Why It Matters
The Sarigam CETP illustrates Enviro’s ability to design and operate advanced multi-stage treatment systems for challenging industrial wastewater. It reinforces the role of centralised treatment facilities in supporting sustainable industrial growth.
