Overview
UWWTP Šmarje pri Jelšah serves approximately 7,300 residents in Predenca, Slovenia. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.
UWWTP Šmarje pri Jelšah is a municipal wastewater treatment plant located in Predenca, a settlement within the Šmarje pri Jelšah municipality in eastern Slovenia. The plant serves a population of approximately 7,317 people, classifying it as a small to medium agglomeration under EU classification. As a Slovenian facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations between 2,000 and 10,000 population equivalent discharging into freshwater or estuaries. Slovenia has transposed this directive into national law, and the plant is subject to regular monitoring and permitting by the Slovenian Environment Agency (ARSO). The treated effluent from the plant is discharged into a local watercourse that ultimately drains into the Sava River basin, which flows into the Danube River and reaches the Black Sea. The plant plays a key role in protecting the local watershed and downstream aquatic ecosystems from nutrient pollution and organic loading.
Environmental context
The plant discharges into a tributary of the Sava River, which flows into the Danube and reaches the Black Sea. The Sava basin supports diverse aquatic life and is an important ecological corridor in the region. The plant's treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in downstream water bodies.
Frequently asked questions
The plant is located in Predenca, a settlement within the municipality of Šmarje pri Jelšah in eastern Slovenia. The address is Obrtniška ulica, Predenca, 3240 Šmarje pri Jelšah.
The plant serves approximately 7,317 residents, classifying it as a small to medium agglomeration under EU classification.
The treated effluent is discharged into a local watercourse that is part of the Sava River basin, which flows into the Danube River and ultimately reaches the Black Sea.
As a Slovenian facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. Compliance is monitored by the Slovenian Environment Agency (ARSO).
Under the EU UWWTD, agglomerations between 2,000 and 10,000 population equivalent are required to have at least secondary treatment. Many plants in this category use biological treatment processes such as activated sludge or trickling filters to meet effluent standards.
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