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The breakthrough curves of Cr(VI) in a fixed bed with ACF-nZVI were measured, and compared with those in the fixed bed with ACF. The catalytic wet peroxide oxidation (CWPO) process for MO was also carried out using ACF-nZVI after reacting with Cr(VI) in the same fixed bed. The results showed that the breakthrough time of ACF-nZVI was significantly longer than that of ACF. Higher pH values were unfavorable for the Cr(VI) removal. The breakthrough time increased with decreasing inlet Cr(VI) concentration or increasing bed height. The Yoon\u2013Nelson and bed depth service time (BDST) models were found to show good agreement with the experimental data. The Cr(VI) removal capacity when using ACF-nZVI was two times higher than that when using ACF. Under the optimal empty bed contact time of 1.256 min, the fixed bed displayed high MO conversion (99.2%) and chemical oxygen demand removal ratio (55.7%) with low Fe leaching concentration (&amp;lt;5 mg\/L) after continuous running for 240 min. After three cycles, the conversion of MO remained largely unchanged.<\/jats:p>","DOI":"10.2166\/wst.2020.383","type":"journal-article","created":{"date-parts":[[2020,8,13]],"date-time":"2020-08-13T02:04:49Z","timestamp":1597284289000},"page":"732-746","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":5,"title":["Removal of Cr(VI) and methyl orange by activated carbon fiber supported nanoscale zero-valent iron in a continuous fixed bed column"],"prefix":"10.2166","volume":"82","author":[{"given":"Jian","family":"Liu","sequence":"first","affiliation":[{"name":"College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China"},{"name":"Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Hengyang Normal University, Hengyang 421008, China and Key Laboratory of Functional Organometallic Materials, University of Hunan Province, Hengyang Normal University, Hengyang 421008, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhengji","family":"Yi","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China"},{"name":"Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Hengyang Normal University, Hengyang 421008, China and Key Laboratory of Functional Organometallic Materials, University of Hunan Province, Hengyang Normal University, Hengyang 421008, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ziling","family":"Ou","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tianhui","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, 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