KEELBY STW - Secondary Wastewater Treatment Plant in West Lindsey, Lincolnshire

KEELBY STW is a municipal wastewater treatment plant located in Keelby, West Lindsey, Lincolnshire, England. The facility serves a population of around 2,097 and operates under the regulatory framework of the UK Environment Agency, which enforces the Urban Waste Water Treatment (England and Wales) Regulations 2000, transposing the EU Urban Waste Water Treatment Directive. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 3,222 cubic meters per day and currently treats an average daily flow of approximately 467 cubic meters, indicating significant spare capacity. Secondary treatment typically involves activated sludge or trickling filter systems. The plant's discharge volume and capacity suggest it is sized for future growth or seasonal variations. KEELBY STW discharges treated wastewater into local watercourses that ultimately drain into the Humber Estuary, a major ecological and economic resource. The Humber Estuary supports diverse bird populations and fish species, including migratory salmonids. The plant's operation helps protect the estuary's water quality and the downstream North Sea environment from nutrient and pollutant loads.

KEELBY STW discharges into local streams that flow into the Humber Estuary, a large tidal estuary on the east coast of England. The Humber Estuary is a vital habitat for overwintering birds and supports a range of aquatic life, including commercially important fish species. The estuary's waters eventually reach the North Sea, making the plant's secondary treatment important for reducing organic pollution and protecting downstream marine ecosystems.