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INNOVATIVE TWO- COMPONENT POLYMER MEMBRANES AS VIABLE MEANS FOR HEAVY METALS REMOVAL FROM WASTEWATER
Abstract
This study deals with the synthesis and characterization of functional membranes, suitable for the removal of heavy metal ions from synthetic wastewater, using various copolymers together with low amount of biosorbent. The membranes were obtained at room temperature by phase inversion. The kind of biosorbents were investigated, the 1st one based on nutrients and the 2nd one based on bioactive substances. The obtained functional membranes were characterized by different techniques: Fourier Transform Infrared (FTIR) spectroscopy, Optical Microscopy (OM) and Electrochemical Impedance Spectroscopy (EIS). Moreover, water content and porosity of the prepared membranes were determined. OM showed that the incorporation of low amount of biosorbent into the mesoporous channels results in a reduction in the pore size. The value of water content in membrane was over 70% when using biosorbent. The prepared membranes can be used for removal of heavy metal ions from wastewaters by different electrochemical processes (i.e. electrodialysis, reverse osmosis, ultrafiltration).
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