PMID- 29964628 OWN - NLM STAT- MEDLINE DCOM- 20181211 LR - 20181211 IS - 0250-3301 (Print) IS - 0250-3301 (Linking) VI - 38 IP - 7 DP - 2017 Jul 8 TI - [Effects of Goethite, Magnetite and Gypsum on the Anaerobic Degradation of 2,4-Dichlorophenol]. PG - 2875-2882 LID - 10.13227/j.hjkx.201608169 [doi] AB - 2,4-dichlorophenol(2,4-DCP), a highly toxic and refractory organic compound, was commonly used in pesticide production and thus widely distributed in water and soil. Goethite, magnetite and gypsum were added into the anaerobic system which simulated the natural anaerobic process to evaluate their effects on the anaerobic degradation of 2,4-DCP. It indicated that goethite, magnetite and gypsum had no appreciable adsorption ability toward 2,4-DCP under anaerobic condition. Mass balance analysis showed that only the transformation of 2,4-DCP to 4-chlorophenol(4-CP) occurred in all experimental groups. The addition of sodium acetate doubled the reductive dechlorination rate of 2,4-DCP in comparison with the groups without exogenous carbon source. The reductive dechlorination rate of 2,4-DCP was enhanced by the addition of goethite and magnetite, which was caused by the improved metabolic activity of dechlorination bacteria that played an important role in the anaerobic degradation of 2,4-DCP. Gypsum greatly inhibited or even stopped the degradation process of 2,4-DCP through restraining the growth and activity of dechlorination bacteria. This study will shed light on the migration and degradation of refractory chlorinated organic contaminants in anaerobic sedimentary environment, and the treatment of such matters in environmental technology. FAU - Kong, Dian-Chao AU - Kong DC AD - Laboratory of Nanominerals and Environmental Materials, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China. FAU - Zhou, Yue-Fei AU - Zhou YF AD - Laboratory of Nanominerals and Environmental Materials, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China. FAU - Chen, Tian-Hu AU - Chen TH AD - Laboratory of Nanominerals and Environmental Materials, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China. FAU - Wang, Jin AU - Wang J AD - Laboratory of Nanominerals and Environmental Materials, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China. FAU - Li, Bi AU - Li B AD - Laboratory of Nanominerals and Environmental Materials, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China. LA - chi PT - Journal Article PL - China TA - Huan Jing Ke Xue JT - Huan jing ke xue= Huanjing kexue JID - 8405344 RN - 0 (Chlorophenols) RN - 0 (Iron Compounds) RN - 0 (Minerals) RN - 1310-14-1 (goethite) RN - R669TG1950 (2,4-dichlorophenol) RN - WAT0DDB505 (Calcium Sulfate) RN - XM0M87F357 (Ferrosoferric Oxide) SB - IM MH - Anaerobiosis MH - Bacteria/*metabolism MH - Calcium Sulfate/*chemistry MH - Chlorophenols/*metabolism MH - Ferrosoferric Oxide/*chemistry MH - Iron Compounds/*chemistry MH - Minerals/*chemistry OTO - NOTNLM OT - 2,4-dichlorophenol(2,4-DCP) OT - 4-chlorophenol(4-CP) OT - goethite OT - gypsum OT - magnetite OT - reductive dechlorination EDAT- 2018/07/03 06:00 MHDA- 2018/12/12 06:00 CRDT- 2018/07/03 06:00 PHST- 2018/07/03 06:00 [entrez] PHST- 2018/07/03 06:00 [pubmed] PHST- 2018/12/12 06:00 [medline] AID - 10.13227/j.hjkx.201608169 [doi] PST - ppublish SO - Huan Jing Ke Xue. 2017 Jul 8;38(7):2875-2882. doi: 10.13227/j.hjkx.201608169.