Kolindros Wastewater Treatment Plant, Kolindros, Greece

The Kolindros wastewater treatment plant is located in the town of Kolindros, within the Municipality of Pydna-Kolindros in the Pieria regional unit of Central Macedonia, Greece. The plant serves a population of approximately 2,847, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU UWWTD for sensitive areas. With a designed capacity of 8,300 m³/day and an actual discharge volume of 965.36 m³/day, the plant 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 Thermaic Gulf of the Aegean Sea. The plant's advanced treatment helps protect the downstream aquatic environment, including the coastal waters of the Thermaic Gulf, which support diverse marine life and are important for local fisheries and tourism.

The Kolindros plant discharges into the local watershed that flows into the Thermaic Gulf, a part of the Aegean Sea. The Thermaic Gulf is an ecologically sensitive area that supports diverse marine ecosystems, including seagrass meadows and fish nurseries. The advanced treatment provided by the plant helps reduce nutrient loading and protects water quality in the gulf, which is important for both biodiversity and local economic activities such as fishing and tourism.