PMID- 35588671 OWN - NLM STAT- MEDLINE DCOM- 20220603 LR - 20221207 IS - 1095-8630 (Electronic) IS - 0301-4797 (Linking) VI - 316 DP - 2022 Aug 15 TI - A newly-constructed bifunctional bacterial consortium for removing butyl xanthate and cadmium simultaneously from mineral processing wastewater: Experimental evaluation, degradation and biomineralization. PG - 115304 LID - S0301-4797(22)00877-5 [pii] LID - 10.1016/j.jenvman.2022.115304 [doi] AB - Due to the technological limitations associated with beneficiation technology, large amounts of flotation reagents and heavy metals remain in mineral processing wastewater. Unfortunately, however, no treatment methods are available to mitigate the resulting pollution by them. In this study, a bacterial consortium SDMC (simultaneously degrade butyl xanthate and biomineralize cadmium) was constructed in an effort to simultaneously degrade butyl xanthate (BX) and biomineralize cadmium (Cd) by screening and domesticating two different bacterial species including Hypomicrobium and Sporosarcina. SDMC is efficient in removing the combined pollution due to BX and Cd with a 100% degradation rate for BX and 99% biomineralization rate for Cd within 4 h. Besides, SDMC can tolerate high concentrations of Fe(III) (0-40 mg/L). It has an excellent ability to utilize Fe(III) for enhanced removal of the combined pollutants. SDMC can effectively remove pollutants with a pH range of 6-9. Further, we discussed pathways for potential degradation and biomineralization: Cd(BX)(2)-Cd(2+), BX(-); BX(-)-CS(2), butyl perxanthate (BPX); Cd(2+)-(Ca0.67,Cd0.33)CO(3). The removal of the combined pollutants primarily entails decomposition, degradation, and biomineralization, C-O bond cleavage, and microbially induced carbonate precipitation (MICP). SDMC is a simple, efficient, and eco-friendly bifunctional bacterial consortium for effective treatment of BX-Cd combined pollution in mineral processing wastewater. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Lin, Hai AU - Lin H AD - School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China. FAU - Qin, Kangjia AU - Qin K AD - School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China. FAU - Dong, Yingbo AU - Dong Y AD - School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China. Electronic address: ybdong@ustb.edu.cn. FAU - Li, Bing AU - Li B AD - School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China. LA - eng PT - Journal Article DEP - 20220516 PL - England TA - J Environ Manage JT - Journal of environmental management JID - 0401664 RN - 0 (Environmental Pollutants) RN - 0 (Ferric Compounds) RN - 0 (Minerals) RN - 0 (Thiones) RN - 0 (Waste Water) RN - 00BH33GNGH (Cadmium) RN - 110-50-9 (butylxanthate) RN - H0G9379FGK (Calcium Carbonate) SB - IM MH - Bacteria/metabolism MH - Biomineralization MH - *Cadmium/chemistry MH - Calcium Carbonate MH - *Environmental Pollutants MH - Ferric Compounds MH - Minerals MH - Thiones MH - Wastewater OTO - NOTNLM OT - Biodegradation OT - Cadmium OT - Microbial consortium OT - Microbially induced carbonate precipitation (MICP) OT - Organic flotation reagents EDAT- 2022/05/20 06:00 MHDA- 2022/06/07 06:00 CRDT- 2022/05/19 18:23 PHST- 2021/10/18 00:00 [received] PHST- 2022/04/19 00:00 [revised] PHST- 2022/05/11 00:00 [accepted] PHST- 2022/05/20 06:00 [pubmed] PHST- 2022/06/07 06:00 [medline] PHST- 2022/05/19 18:23 [entrez] AID - S0301-4797(22)00877-5 [pii] AID - 10.1016/j.jenvman.2022.115304 [doi] PST - ppublish SO - J Environ Manage. 2022 Aug 15;316:115304. doi: 10.1016/j.jenvman.2022.115304. Epub 2022 May 16.