Hydroxylamine(HA)is widely used in persulfate(PS)-based advanced oxidation processes due to its ability to promote Fe2+/Fe3+cycling and improve the removal efficiency of target pollutants.In this review,the degradation efficiency of various target organic pollutants by hydroxylamine enhanced catalyst/persulfate system were summarized.The mechanism of homogeneous/PS system and heterogeneous/PS systems driven by hydroxylamine were compared.The effects of the hydroxylamine dosages,pH values,and anions in water on the degradation of organic pollutants by HA/catalyst/PS system were discussed.Finally,the challenges and prospects faced in this field were proposed.
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