Continuing the project “Safety Plan for Diffuse Pollution Control of Watersheds”, scientists at the RTU Institute of Water Systems and Biotechnology are developing solutions to reduce water pollution.
Within the framework of the project, work is actively underway on the creation of a pilot plant for the reduction of diffuse pollution. Its operating principle is the recovery of nitrogen compounds from sewage sludge compost runoff or infiltrate, using a membrane contactor system. Typically, the infiltrate is returned to the wastewater treatment system in an untreated form, thus creating an additional pollution load on the treatment facilities. As the infiltrate flows through the pilot plant with a selective membrane, the recovery of nitrogen compounds will be achieved. The resulting compound – ammonium sulfate – can be used as fertilizer.
In laboratory conditions, scientists from the Institute of Water Resources and Energy (IWRI) tested the device to verify the efficiency of nitrogen recovery. After successful results, the assembly of the pilot device was started, so that it could soon be installed at the wastewater treatment plant of the project partner SIA “Liepājas ūdens”. It is expected that the installation of the pilot device will help reduce the release of nitrogen compounds into treated wastewater and combat the eutrophication process in the Baltic Sea.
https://centralbaltic.eu/project/wssp/
The project is co-financed by the European Union, its total budget is 2.6 million EUR, the implementation period is 01.05.2024–01.10.2027.
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