Negative impact of synthetic organic compounds on the environment keeps growing because of their wide use. One of them is BPA which is commonly found in industrial wastewaters, especially from plastic industry. Even though some synthetic organic pollutants can be removed from the environment with conventional wastewater treatment plants, they are still detected in drinking water. In the scope of our masters thesis we developed a robust, flow-through microsystem for continuous degradation of organic pollutants like BPA. With the reaction between Fe(II) ions and potassium persulfate we can generate reactive sulphate radicals, which we used for continuous BPA degradation. Controlled Fe(II) release is essential for effective sulphate radical generation and with that effective degradation. For this purpose we developed responsive Fe/alginate hydrogel which sol-gel transformation we can control with electrochemical stimulation. System allows controlled in situ iron ion release.
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