PMID- 33819908 OWN - NLM STAT- MEDLINE DCOM- 20210421 LR - 20210421 IS - 1873-2976 (Electronic) IS - 0960-8524 (Linking) VI - 331 DP - 2021 Jul TI - Efficient removal of nitrate, manganese, and tetracycline by a polyvinyl alcohol/sodium alginate with sponge cube immobilized bioreactor. PG - 125065 LID - S0960-8524(21)00404-1 [pii] LID - 10.1016/j.biortech.2021.125065 [doi] AB - The co-existence of nitrate, manganese (Mn), and antibiotics are of a wide concern. In this study, a denitrifying and manganese-oxidizing Zoogloea Q7 bacterium was immobilized using polyvinyl alcohol/sodium alginate with sponge cube (PVA/SA@sponge cube) in the reactor. The optimal operation parameters of the bioreactor were explored. Maximum nitrate, Mn(II), and tetracycline (TC) removal efficiencies of 93.00, 72.34, and 57.32% were achieved with HRT of 10 h, pH of 6.5, Mn(II) concentration of 20 mg L(-1), and TC of 1 mg L(-1), respectively. Fluorescence excitation-emission matrix (EEM) proved that the microorganism in the bioreactor was greatly active. Scanning electron microscope (SEM) images demonstrated that Zoogloea Q7 was commendably immobilized on the novel material. X-ray diffraction (XRD) analysis suggested that the bioprecipitate was mainly composed of MnO(2) and MnCO(3.) Through high-throughput analysis, Zoogloea sp. Q7 was considered to be the dominant bacteria present in the bioreactor. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Chang, Qiao AU - Chang Q AD - School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. FAU - Ali, Amjad AU - Ali A AD - School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. FAU - Su, Junfeng AU - Su J AD - School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. Electronic address: sjf1977518@sina.com. FAU - Wen, Qiong AU - Wen Q AD - School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. FAU - Bai, Yihan AU - Bai Y AD - School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. FAU - Gao, Zhihong AU - Gao Z AD - School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. FAU - Xiong, Renbo AU - Xiong R AD - School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. LA - eng PT - Journal Article DEP - 20210327 PL - England TA - Bioresour Technol JT - Bioresource technology JID - 9889523 RN - 0 (Alginates) RN - 0 (Anti-Bacterial Agents) RN - 0 (Manganese Compounds) RN - 0 (Nitrates) RN - 0 (Oxides) RN - 42Z2K6ZL8P (Manganese) RN - 9002-89-5 (Polyvinyl Alcohol) SB - IM MH - Alginates MH - Anti-Bacterial Agents MH - Bioreactors MH - Denitrification MH - Manganese MH - Manganese Compounds MH - *Nitrates MH - Oxides MH - *Polyvinyl Alcohol OTO - NOTNLM OT - Bacterial immobilized reactor OT - Denitrification OT - Manganese-oxidizing bacteria OT - Microbial community structure OT - Tetracycline removal EDAT- 2021/04/06 06:00 MHDA- 2021/04/22 06:00 CRDT- 2021/04/05 20:24 PHST- 2021/02/15 00:00 [received] PHST- 2021/03/20 00:00 [revised] PHST- 2021/03/22 00:00 [accepted] PHST- 2021/04/06 06:00 [pubmed] PHST- 2021/04/22 06:00 [medline] PHST- 2021/04/05 20:24 [entrez] AID - S0960-8524(21)00404-1 [pii] AID - 10.1016/j.biortech.2021.125065 [doi] PST - ppublish SO - Bioresour Technol. 2021 Jul;331:125065. doi: 10.1016/j.biortech.2021.125065. Epub 2021 Mar 27.