ROWP Aqua Nova Hargita Statia de epurare Salonta - Secondary Wastewater Treatment Plant in Salonta, Romania

ROWP Aqua Nova Hargita Statia de epurare Salonta is a municipal wastewater treatment plant located in Salonta, Bihor County, Romania. The facility serves a population of approximately 9,532 and operates with a designed capacity of 21,463 cubic meters per day, treating an average daily flow of 819.89 cubic meters. As a secondary treatment plant, it provides biological treatment to reduce organic pollutants and suspended solids before discharge. The plant operates under Romania's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent above 2,000. For smaller agglomerations like Salonta (under 10,000 PE), secondary treatment is the standard requirement, ensuring compliance with EU effluent quality standards. The plant's capacity utilization is low, indicating ample reserve capacity for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Tisza River basin, part of the larger Danube River system. The receiving water body supports aquatic life and is used for agricultural and ecological purposes downstream. The plant plays a key role in protecting the local watershed from untreated sewage pollution, contributing to the ecological health of the region.

The plant discharges into the local hydrographic network within the Tisza River basin, which flows into the Danube River and eventually reaches the Black Sea. The downstream environment includes agricultural lands and wetlands that depend on good water quality for biodiversity and human use. Secondary treatment reduces organic load and suspended solids, helping to prevent eutrophication and maintain oxygen levels in receiving waters, which is critical for fish and other aquatic organisms.