Overview
Zapresic wastewater treatment plant serves Grad Zaprešić, Croatia, with primary treatment and a designed capacity of 61,000 m³/day. It discharges into the Sava River, a major tributary of the Danube.
The Zapresic wastewater treatment plant is located in Grad Zaprešić, Croatia, near the Sava River. It serves the local population with a designed capacity of 61,000 cubic meters per day, reflecting the scale of municipal wastewater generated in this urban area northwest of Zagreb. The plant provides primary treatment, which involves physical processes to remove settleable solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are typically required to achieve at least secondary treatment, especially in sensitive areas. The treated effluent is discharged into the Sava River, which flows through Croatia into Serbia and eventually joins the Danube at Belgrade. The Sava River supports diverse aquatic life and is an important ecological corridor in the Danube basin. The plant's operations are critical for protecting water quality in this transboundary river system.
Environmental context
The plant discharges into the Sava River, a major tributary of the Danube River basin. The Sava flows through Croatia, Bosnia and Herzegovina, and Serbia, supporting diverse aquatic ecosystems and providing water for agriculture and industry. Downstream, the Danube carries water to the Black Sea, making the plant's effluent management important for regional water quality.
Frequently asked questions
The plant is located in Grad Zaprešić, Croatia, near the Sava River, approximately 15 km northwest of Zagreb.
The plant has a designed capacity of 61,000 cubic meters per day, serving the municipal wastewater needs of Grad Zaprešić and surrounding areas.
The plant provides primary treatment, which involves physical sedimentation to remove solids. For agglomerations of this size, the EU Urban Waste Water Treatment Directive typically requires secondary treatment.
The treated effluent is discharged into the Sava River, which flows through Croatia and Serbia before joining the Danube River, ultimately reaching the Black Sea.
As an EU member state, Croatia implements the Urban Waste Water Treatment Directive (91/271/EEC). Plants serving agglomerations over 10,000 population equivalent are required to provide secondary treatment, with more stringent requirements in sensitive areas.
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