ROWP SC Compania de Apa SA Buzau sect Nehoiu Paltineni - Nehoiu Wastewater Treatment Plant

ROWP SC Compania de Apa SA Buzau sect Nehoiu Paltineni is a wastewater treatment plant located in Nehoiu, Buzău County, Romania. The facility serves a population of approximately 3,176 residents and has a designed capacity of 14,774 m³/day, indicating it is sized for a larger agglomeration than its current served population. The plant provides primary treatment, which involves physical processes such as sedimentation to remove settleable solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) between 2,000 and 10,000 are generally required to have secondary treatment. However, primary treatment may be acceptable in less sensitive areas or as a transitional stage. The plant's capacity suggests it could accommodate future growth or industrial loads. The treated effluent is discharged into a local watercourse that ultimately drains into the Buzău River, a tributary of the Siret River, which flows into the Danube River and then the Black Sea. The plant plays a role in protecting the Buzău River basin from untreated wastewater, supporting downstream aquatic ecosystems and water quality.

The plant discharges into a tributary of the Buzău River, which flows through the Carpathian foothills and into the Siret River, a major tributary of the Danube. The Danube then empties into the Black Sea. The Buzău River supports diverse aquatic life and is used for irrigation and recreation. Primary treatment reduces suspended solids but does not remove nutrients or pathogens, so downstream water quality may be affected, especially during low-flow periods. The region's mountainous terrain and seasonal rainfall influence dilution capacity.