Environmentally friendly waste water treatment
At Gdansk University of Technology, the EEA Grants financed a project to minimise the environmental impact caused by sewage treatment plants.
Funding from the EEA Grants financed research by Gdansk University of Technology into new methods for reducing pollution from waste-water treatment plants. Leakages from landfills and rejected water from processing sewage sludge, a toxic by-product of waste-water treatment, cause pollution that may contaminate groundwater and pose serious health risks.
In cooperation with waste-water treatment plants in northern Poland, the research team investigated opportunities for minimising the environmental impact caused by sewage treatment plants. Two test wetlands were created to determine the minimum areas of wetland required to cleanse the sewage water, which is often heavily polluted with ammonium, nitrogen and heavy metal. The researchers also developed methods for disinfecting treated municipal waste-water discharged into the surface water, and removing nitrogen compounds discharged from waste-water treatment plants. In addition, research was conducted into the possibilities of using sewage sludge as an energy source. The research results have been passed on to the participating waste-water treatment plants.
New methods of emission reduction of selected pollutants and application of by-products from sewage treatment plants.
Type & project assistance:
Gdansk University of Technology, Faculty of Civil and Environmental Engineering
Type of institution:
Grant agreement date:
20 March 2007
The purpose of the Project is to develop new methods for reduction of contaminant emission and application of by-products from wastewater treatment plants, with the overall objective of improving the quality of surface waters and ground waters in Poland by minimising the negative effects of discharged pollutants from wastewater treatment plants. Reference is made to the application, dated 29 November 2005, and correspondence with the Focal Point dated 6 September 2006 and 18 December 2006.
The completed Project shall include the following activities and results:
- investigating the possibilities for applying sequentially operated hydrophite beds for the treatment of highly contaminated wastewater;
- developing disinfection methods for the treated sewage discharged to the surface water;
- characterisation and bioavailability of nitrogen fractions in the effluent from municipal wastewater treatment plants; and
- estimation of energy potential of sewage sludge from municipal wastewater treatment plants.
The Project Promoter is Gdansk University of Technology, Faculty of Civil and Environmental Engineering.
The Polish Ministry of Science and Higher Education shall provide at least 15 percent of the estimated eligible Project cost.