{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T20:28:26Z","timestamp":1776457706036,"version":"3.51.2"},"reference-count":25,"publisher":"IWA Publishing","issue":"11","content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2018,12,28]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Direct use of zero-valent iron (ZVI) in reductive removal of selenate (Se(VI)) is inefficient due to the intrinsic passive layer of ZVI. Here we observed that ZVI pretreated with H2O2 (P-ZVI-O) performs much better in Se(VI) removal from a mining effluent than other three modes of ZVI alone, acid washing ZVI (P-ZVI-A), and simultaneous addition of H2O2 and ZVI (ZVI-O) as well. The P-ZVI-O exhibits exceptionally high Se(VI) removal at a low dosage, wide pH range, with Se dropping down from 93.5 mg\/L to &amp;lt;0.4 \u03bcg\/L after 7-h reaction. Interestingly, the initial pH (2\u20136) of the mining effluent exerted little influence on the final Se(VI) removal. H2O2\/HCl pretreatment results in the formation of various reducing corrosion products (e.g. Fe3O4, FeO and Fe2+), which greatly favors the efficient Se(VI) removal. In addition, surface-bound Fe2+ ions participated in the reduction of Se(VI). Combined with the influence of Se valence as well as pH and Fe2+ (whether dissolved or surface bound), it is deduced that the P-ZVI-O mode induced efficient Se(VI) removal via the adsorption-reduction and\/or co-precipitation. This study demonstrates that H2O2\/HCl pretreatment of ZVI is a very promising option to enhance the efficiency of reductive removal of Se(VI) from real effluents.<\/jats:p>","DOI":"10.2166\/wst.2018.526","type":"journal-article","created":{"date-parts":[[2018,12,28]],"date-time":"2018-12-28T15:28:06Z","timestamp":1546010886000},"page":"2404-2413","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":9,"title":["Enhanced removal of selenate from mining effluent by H2O2\/HCl-pretreated zero-valent iron"],"prefix":"10.2166","volume":"78","author":[{"given":"Bing","family":"Wu","sequence":"first","affiliation":[{"name":"State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huichao","family":"Jia","sequence":"first","affiliation":[{"name":"State Key Laboratory of Pollution Control and 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