Advanced reduction processes for the removal of metabolites from water

“Advanced oxidation processes (AOP) have obtained a lot of attention in literature over recent years. However, not all compounds can effectively be oxidized because, in fact, they already are in an oxidized form. This is true, for example for halogen containing organic compounds (Vellanki et al. 2013), or bromate (Jung et al. 2014, Xiao et al. 2017b). In order to change their properties, like their adsorption on activated carbon surfaces, it might be better to apply a reduction process instead of an oxidation process to make them less hydrophilic (Schoutteten et al. 2016). In recent years, some research has been done in this field. AOPs can be characterized by the production of highly reactive reducing radicals. Often these are generated by applying UV radiation in combination with sulfite, dithionite, sulfide, odide, NaBH4 or Fe2+ ions (Bao et al. 2019, Dong et al. 2018, Duan and Batchelor 2014, Hara et al. 1999, Liu et al. 2014, Xiao et al. 2017b, Xiong et al. 2019, Zhang et al. 2015).”

(Citation: Hofman-Caris, C.H.M., Harmsen, D.J.H. – Advanced reduction processes for the removal of metabolites from water – UVSolutions (2020)29 May)