PU Balozu komunala saimnieciba - Advanced Wastewater Treatment Plant in Baloži, Latvia

PU Balozu komunala saimnieciba is an advanced wastewater treatment plant located in Baloži, Latvia, within the Ķekavas novads municipality. The plant serves a population of approximately 3,242 residents, making it a small-scale facility in the Latvian wastewater infrastructure network. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 7,140 m³/day and a discharge volume of 928.46 m³/day, the facility operates well below its capacity, indicating potential for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Baltic Sea via the Daugava River basin. The plant's location more than 10 km from the coast reduces direct marine impact, but its proximity to the Baltic Sea underscores the importance of advanced treatment in protecting this sensitive marine environment.

The plant discharges into the Daugava River basin, which flows into the Gulf of Riga and the Baltic Sea. The Baltic Sea is a brackish, semi-enclosed sea with limited water exchange, making it sensitive to nutrient pollution. Advanced treatment at this plant helps reduce the load of nitrogen and phosphorus, supporting the ecological health of downstream waters and mitigating eutrophication risks in the Baltic Sea.