Removal of emerging micropollutants from wastewater by nanofiltration and biofilm reactor ( <scp> <i>MicroStop</i> </scp> )

Current wastewater treatment is not designed for the elimination of micropollutants (MP) and therefore these are released into aquatic environment by means municipal wastewater. The MicroStop project investigates a combination fixed-bed reactor (FBR) nanofiltration plant (NF) organic MP. NF acts as barrier MP while biological degradation pollutants to be induced in FBR. A simultaneous retentate should realized its return supplied with energy large separation matter primary clarification. experiments showed that can eliminate more than 95% selected detected on average, therefore, this method represents suitable pollutants. was used test potential results significant different took place degradability substances could verified detecting adsorption sludge fixed-bed. For certain (sulfamethoxazole carbamazepine) only little biodegradation detected, which confirmed values from literature. Apart two substances, average rate 78%. successful MP-retention connection rates demonstrated concept. Statement Industrial Relevance It undisputed conventional has upgraded, since it able residual following describes how MicroStop-process address where competitive processes such activated carbon or ozonation fail do so: process comprehensively retain microplastics, pathogenic germs metabolites extent before they reach environment. retentate, normally occurs residue NF, directly treated would excess sludge, easily treatment. effluent high quality. This other regions world irrigating plants, industrial even tap water. potentially increased consumption (i.e., due NF) taken account our concept extraction Novelty Significance FBR yet been investigated form. In addition, an elevated (Powerstep-process) idea complete redesign plants.