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Kerala Faces Liquid Waste Challenge: Gap Widens
18 Feb
Summary
- Kerala generates 596 MLD of untreated sewage in urban areas.
- State has a sewage treatment capacity gap of 11 million litres daily.
- Unique settlement patterns pose challenges for setting up STPs.
As of January 2026, Kerala generates an estimated 596 million litres per day (MLD) of untreated sewage in its urban areas. While projects for treating 435.83 MLD are underway, the remaining sewage is managed through various onsite facilities. The state's total liquid waste generation is projected at 4,043 MLD for 2026, with a current STP capacity of 247.08 MLD.
Authorities are implementing a strategy of 'network-based STPs' and Faecal Sludge Treatment Plants (FSTPs) in both urban and rural local bodies. Sixty-five land parcels have been identified for these facilities, with seven plants already operational and ten under construction. However, setting up new STPs remains a challenge due to Kerala's distinct settlement patterns, geographical diversity, and land availability constraints.
