Gewerbepark Dettelbach Wastewater Treatment Plant, Biebelried, Bavaria

Gewerbepark Dettelbach is a former wastewater treatment plant located in Biebelried, a municipality in the Kitzingen district of Bavaria, Germany. The plant served a population of 1,880 and was designed with a capacity of 5,400 cubic meters per day, though its actual discharge volume was 475.78 cubic meters per day. It is now closed and no longer operational. The plant provided advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal to protect sensitive water bodies. As a German facility, it would have operated under the national Wasserhaushaltsgesetz (Water Resources Act) and relevant state regulations. The area drains into the Main River system, which flows into the Rhine and ultimately the North Sea. The plant's closure may reflect consolidation of wastewater services in the region. Its advanced treatment capability would have helped protect local groundwater and surface water quality.

The plant is located inland in the Main River basin, which flows into the Rhine and then the North Sea. The region is characterized by agricultural land and small settlements. The advanced treatment provided nutrient removal, reducing the risk of eutrophication in downstream waters. The plant's closure may have shifted treatment to a larger facility, potentially improving overall efficiency and environmental protection.