Layer-by-layer membrane modification for resource recovery, FHNW School of Life Sciences

New solutions for acidic wastewater and spent acid treatment challenges are needed in order to reach new levels of resource efficiency and closed loop processes. The application of currently commercially available membranes for acidic filtration is limited by a low flux and static membrane properties.

Within in this project, we developed layer-by-Layer (LbL) modified membranes with significant higher fluxes - up to 16 times - which can be tailored for any specific filtration task. The next step is the commercialization of acid resistant membranes to provide an economically viable resource recovery process from any acidic waste stream.