Overview
Surathkal STP is an under-construction wastewater treatment plant in Chelairu, Karnataka, India, serving over 110,000 people. It is located within 50 km of the coast and will discharge into local water bodies.
Surathkal STP is a municipal wastewater treatment plant under construction in Chelairu, a locality in Mangaluru taluk, Dakshina Kannada district, Karnataka, India. Designed to serve a population of approximately 110,240, the plant will address the wastewater needs of this growing urban area near the Arabian Sea coast. As a large agglomeration (over 100,000 people), the plant is expected to meet India's Central Pollution Control Board (CPCB) standards for sewage treatment, which typically require secondary treatment and compliance with discharge norms. The plant's designed capacity is 1.00 million liters per day, though treatment process details are not yet finalized. The treated effluent will likely be discharged into local streams or rivers that flow into the Arabian Sea, contributing to the protection of coastal ecosystems. The plant's proximity to the coast (within 50 km) underscores the importance of proper treatment to prevent marine pollution and safeguard the region's biodiversity.
Environmental context
The plant is located in the coastal region of Karnataka, within the Netravati-Gurupura river basin, which drains into the Arabian Sea. The area supports diverse aquatic life and is important for fisheries and tourism. Proper wastewater treatment is critical to prevent nutrient loading and pathogen contamination in the coastal waters, which are ecologically sensitive and support mangrove ecosystems and marine biodiversity.
Frequently asked questions
Surathkal STP is located in Chelairu, Mangaluru taluk, Dakshina Kannada district, Karnataka, India, near the Arabian Sea coast.
The plant is designed to serve a population of approximately 110,240 people, classifying it as a large agglomeration under Indian wastewater regulations.
The treated effluent is expected to be discharged into local water bodies that drain into the Arabian Sea, though specific discharge details are not yet finalized as the plant is under construction.
The plant operates under India's Central Pollution Control Board (CPCB) standards, which mandate secondary treatment and compliance with discharge norms for large agglomerations.
For agglomerations of this size, Indian regulations typically require secondary treatment (e. g. , activated sludge process) followed by disinfection, with nutrient removal in sensitive areas.
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