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Article Abstract
Application of zero valent iron biochar (ZVI-BC) activated persulfate (PS) oxidation in various antibiotics treatments has been universally confirmed. Full utilization of biomass waste characteristics to reduce usage of toxic reagents in the preparation of ZVI-BC is an environmental optimization strategy. Herein, tetracycline (TC) degradation based on PS-oxidation activated by a novel ZVI-BC (ZVI-FeO-BC) was assessed, in which blueberry pomace extraction substitutes part of sodium borohydride and red mud substitutes iron salt. The ZVI-FeO-BC was a magnetic material loading ZVI on its surface by characterization detection. ZVI-FeO-BC/PS degradation system resulted in over 95.6 % of TC removal following to conditions optimization and ·OH, SO·, ·O radicals contributed 27.8 %, 29.4 % and 20.8 %, respectively. Although TC ultimately degraded into HO and CO, the presence of toxic intermediates during the reaction emphasizes the importance of the sufficiency of reaction. This study highlights the potential of natural waste as substitutes for toxic reagents in environmental remediation.
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| http://dx.doi.org/10.1016/j.biortech.2025.133074 | DOI Listing |
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