Introducing Green Monomers Into Advanced Membrane Separation For Resource Recovery

In the textile industry, a massive amount of water is used in the dyeing process: it is estimated that about 40 kg of water is used to produce 1 kg of dyed textiles. Furthermore, salts and other additives are used. Up to 1.5 kg of salts are used per 1 kg of dyed textiles. The World Bank estimated that about 20% of industrial water pollution comes from the textile industry. Nanofiltration (NF) is one of the most viable water treatment solutions to the current worldwide water crisis. In textile wastewater treatment, loose NF technology is increasingly becoming applied in a new paradigm shift to separate, recycle, and reuse dye/salt mixtures as resources rather than to remove them as waste. In this thesis, the design and fabrication of membranes based on novel materials and green monomers with uniform and tailorable channels aims at the preparation of loose NF membranes with a remarkable water permeability. Furthermore, the research interest also lies in the design of anti-fouling loose NF membranes for the separation of dye/salt mixtures.