Mandatory Compliance – STP installation is compulsory for apartments, resorts, commercial buildings, hospitals, and large establishments as per Kerala State Pollution Control Board (KSPCB) regulations for project approvals.
Prevents Water Pollution – Untreated sewage pollutes Kerala’s rivers, lakes, and backwaters, including iconic ecosystems like Vembanad Lake. STPs are essential to protect these sensitive water bodies.
Reduces Health Risks – Proper sewage treatment prevents contamination of water sources, reducing the spread of waterborne diseases and ensuring safer living conditions.
Protects Backwater Ecosystem – Kerala’s tourism and biodiversity depend heavily on clean backwaters. STPs help maintain ecological balance and support sustainable tourism.
Supports Sustainable Development – With increasing urbanization and tourism growth, STPs ensure efficient wastewater management, preserving natural resources and maintaining environmental sustainability.


KSPCB Regulations for STP
KSPCB Approval: Projects must obtain Consent to Establish (CTE) and Consent to Operate (CTO) from the Kerala State Pollution Control Board before installing and operating an STP.
Mandatory Rules: STPs are compulsory for apartments, resorts, commercial buildings, hospitals, hotels, and large establishments as per environmental and building approval norms.
Reuse Norms: Treated wastewater should be reused for flushing, gardening, landscaping, and cooling, ensuring it meets prescribed quality standards for safe reuse.
Discharge Standards: Treated water must comply with limits such as pH (5.5–9), BOD (typically ≤5 mg/L), TSS (≤5–30 mg/L), COD (≤50–100 mg/L), and controlled fecal coliform levels before discharge into the environment.
Monitoring: KSPCB conducts regular inspections and monitoring of STPs, with stricter norms enforced for sensitive areas like backwaters, coastal zones, and tourist regions
Visit: KSPCB website

A compact, plug-and-play sewage treatment plant designed for easy installation, low maintenance, and efficient wastewater treatment.

A time-based treatment system that processes wastewater in batches, ensuring high-quality output with flexible operation and control.

An advanced treatment process that uses biofilm carriers to remove organic pollutants efficiently with minimal space and maintenance.






We deliver simple, sustainable and failsafe sewage treatment technologies built for real-world India. We empower municipalities, contractors and builders with reliable, low-maintenance solutions that keep STPs running and water resources thriving. Our mission is clean water, healthy ecosystems and a greener future—one project at a time.
406 Pavani Anasuya Towers
Tarnaka Main Road, Secunderabad- 500017.
TollFree: 1800-102-3570
E-mail:Â hello@greensew.com
Website:https://greensew.com