Overview
ZV Marbach Krettenbachtal is a wastewater treatment plant in Zell, Baden-Württemberg, Germany, serving approximately 6,450 people. It operates under the EU Urban Waste Water Treatment Directive.
ZV Marbach Krettenbachtal is a wastewater treatment plant located in Zell, within the Göppingen district of Baden-Württemberg, Germany. The facility serves a population of around 6,450, classifying it as a small to medium agglomeration under EU regulations. Its location in the Swabian Jura foothills places it in a region characterized by rolling hills and mixed agricultural and residential land use. As a German plant serving fewer than 10,000 people, ZV Marbach Krettenbachtal is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges into freshwater. Typical facilities of this scale employ biological treatment with activated sludge or similar technology to meet German effluent standards. The plant discharges into the Krettenbach stream, a tributary of the Marbach, which flows into the Fils river and eventually the Neckar River, a major Rhine tributary. The Neckar drains into the Rhine at Mannheim, ultimately reaching the North Sea. The local watershed supports diverse aquatic life and is part of a region with sensitive water bodies requiring nutrient removal to prevent eutrophication.
Environmental context
The plant's treated effluent enters the Krettenbach, a small stream that feeds the Marbach, then the Fils River, a tributary of the Neckar. The Neckar flows into the Rhine, which discharges into the North Sea. This watershed is ecologically sensitive, supporting fish species like brown trout and grayling, and requires careful nutrient management to avoid algal blooms in downstream rivers and the North Sea.
Frequently asked questions
ZV Marbach Krettenbachtal is located in Zell, in the Göppingen district of Baden-Württemberg, Germany. The address is Lorcher Straße, Zell, 73104.
The plant serves approximately 6,450 people, classifying it as a small to medium agglomeration under EU definitions.
The plant discharges treated effluent into the Krettenbach stream, which flows into the Marbach, then the Fils River, a Neckar tributary. The Neckar joins the Rhine, which drains into the North Sea.
As a German plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for discharges into freshwater from agglomerations of this size.
Plants of this scale in Germany typically use biological treatment processes such as activated sludge, often with nutrient removal to meet strict German effluent standards and protect sensitive receiving waters.
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