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Erlangen wastewater treatment plant - expansion concept 2030: elimination of trace substances
Stand: 08.04.2024
The existing wastewater treatment process leaves trace substances from pharmaceuticals and personal care products as well as certain industrial and household chemicals almost completely in the treated wastewater.
A 4th purification stage is necessary to treat the wastewater accordingly before it flows back into the Regnitz.
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After wastewater treatment in the sewage treatment plant, trace substances remain in the wastewater. Despite their small quantity, these are harmful to the environment and aquatic ecology. An additional 4th treatment stage is intended to eliminate them from the wastewater as far as economically possible before it flows out of the sewage treatment plant and back into the Regnitz. Additional treatment of the wastewater with ozone and activated carbon is planned. An existing filter system will be converted and expanded for this purpose. Additional photovoltaic systems and 2 further storage tanks for sewage gas will ensure energy-neutral operation.
The entire expansion concept has been underway since 2020 and the 4th purification stage should also be completed by the end of 2026.
estimated at around 31.3 million euros
last: Decision in the building and works committee on April 9, 2024