ROWP SC MORANI IMPEX SRL Zarnesti Wastewater Treatment Plant, Zărnești, Romania

ROWP SC MORANI IMPEX SRL Zarnesti is a wastewater treatment plant located in Zărnești, a town in Brașov County, Romania. The plant serves a population of approximately 22,246, placing it in the medium agglomeration category under EU classification. Situated in the Carpathian foothills, the facility is part of the municipal infrastructure for the Zărnești urban area. As a Romanian plant serving a population between 10,000 and 150,000, it is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum standard. Romania has transposed this directive into national law, and plants of this scale are typically expected to meet secondary treatment standards. Regulatory compliance is overseen by the Romanian National Administration of Romanian Waters (ANAR). The plant discharges treated wastewater into the local water system, which ultimately drains into the Olt River basin and then the Danube River. The Danube flows into the Black Sea, making the plant's performance relevant to downstream water quality in both the Danube Delta and the Black Sea coastal zone. The region supports diverse aquatic life and is an important ecological corridor.

The plant's treated effluent enters the local watercourses that feed into the Olt River, a major tributary of the Danube. The Danube River flows through the Danube Delta, a vast wetland of ecological importance, before reaching the Black Sea. This watershed supports diverse aquatic species and provides critical habitat for migratory birds. The plant's location in the Carpathian Mountains region means its discharge affects sensitive mountain stream ecosystems downstream.