Alloa WWTW - Wastewater Treatment Plant in Alloa, Scotland

Alloa WWTW is a municipal wastewater treatment plant located on Griffin Bank in Alloa, Clackmannanshire, Scotland. The facility serves a population of around 45,455, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD), which the UK has transposed into national regulations. As a plant serving over 10,000 people, Alloa WWTW is required to meet secondary treatment standards under the UWWTD. The designed capacity is 1.00 (likely in megaliters per day or similar unit), indicating the plant's infrastructure is sized to handle the incoming load. Typical plants of this scale in Scotland employ activated sludge or trickling filter processes. The treated effluent is discharged into the local water environment, likely the River Forth or its estuary, given Alloa's location on the north bank of the Forth. The Forth flows into the Firth of Forth and then the North Sea. This discharge supports the ecological health of the river and estuary, which are important for migratory fish and bird species.

Alloa WWTW discharges into the River Forth catchment, which flows into the Firth of Forth and ultimately the North Sea. The Firth of Forth is a major estuary supporting diverse aquatic life, including salmon, sea trout, and important bird populations. The plant's nutrient removal performance is critical to prevent eutrophication in the sensitive coastal waters of the Firth.