Overview
STP Kalyani I is an operational wastewater treatment plant in Kalyani City, West Bengal, serving approximately 73,493 people within the Kolkata Metropolitan Area.
STP Kalyani I is an operational wastewater treatment plant located in Kalyani City, West Bengal, India. It serves a population of around 73,493 people as part of the Kolkata Metropolitan Area's wastewater infrastructure. The plant is situated in the Nadia district and plays a key role in managing domestic sewage from this urbanized region. As a plant serving a medium-sized agglomeration, it is expected to comply with India's Central Pollution Control Board (CPCB) standards for sewage treatment. Indian regulations typically require secondary treatment for such facilities, with possible nutrient removal if discharging into sensitive water bodies. The treated effluent from STP Kalyani I likely discharges into local watercourses that drain into the Hooghly River, a distributary of the Ganges. The Hooghly River flows southward through the Sundarbans delta before emptying into the Bay of Bengal. This region supports diverse aquatic ecosystems and is ecologically sensitive due to its estuarine and mangrove habitats.
Environmental context
The plant's treated effluent likely enters local drains that feed into the Hooghly River, a major distributary of the Ganges. The Hooghly flows through the Sundarbans delta, a vast mangrove ecosystem that supports diverse aquatic life and acts as a critical nursery for fisheries. Downstream, the river discharges into the Bay of Bengal, influencing coastal water quality and marine biodiversity in the northern Indian Ocean.
Frequently asked questions
STP Kalyani I is located in Kalyani City, Nadia district, West Bengal, India, within the Kolkata Metropolitan Area.
The plant serves approximately 73,493 people, classifying it as a medium-sized agglomeration under Indian wastewater management standards.
Treated effluent from the plant is likely discharged into local watercourses that drain into the Hooghly River, a distributary of the Ganges, eventually reaching the Bay of Bengal.
The plant operates under India's Central Pollution Control Board (CPCB) standards, which mandate secondary treatment for sewage from agglomerations of this size, with possible tertiary treatment for discharge into sensitive areas.
For a plant serving around 73,000 people, Indian regulations typically require secondary biological treatment, such as activated sludge or sequencing batch reactors, to meet effluent quality standards for organic matter and suspended solids.
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