Ecotoxicity of coating materials for wastewater treatment plants
At the wastewater treatment plant Altenrhein , the concrete structures of the activated carbon filter, the nozzle bottom, the upholstery room and the sludge water channel are to be protected with a new organic coating. The ecotoxicity of the coating materials in question will be tested using various biological tests to ensure that they do not increase the ecotoxicity of the treated wastewater. This is particularly important as the newly built process stage eliminates such adverse ecotoxic effects.