The paper covers membrane filtration of MCPD and DCP molecules from wastewater which is created by production of PAE resins with low content of chlorine by-products. The chosen filtration process is reverse osmosis with two different membranes SUEZ AG1812HR and TriSep TurboClean 1812-X20-31. Several filtration cycles were carried out on the laboratory filtration device at different pressures, temperatures and inlet media flows. The efficiency of filtration and applicability in a real industrial process were monitored on the basis of two parameters: (i) temperature-corrected permeability, which depends directly on the measured quantities of the process, and (ii) the chlorine component retention rate, which depends on the concentration of DCP and MCPD in permeate and at entry. These concentrations were measured by gas chromatography. Reverse osmosis has been found to provide over 95% retention rates for DCP and MCPD even at inlet concentrations higher than 5000 ppm. At the same time, the results show that the filtration capacity of the membranes does not decrease after several days of testing. The reverse osmosis process has a high potential for incorporation into real process systems. This would reduce water consumption and the amount of hazardous waste and thus contribute to greater social responsibility and sustainable development.
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