title: The effects of manganese oxide octahedral molecular sieve chitosan microspheres on sludge bacterial community structures during sewage biological treatment.
abstract: This study examines the effects of manganese oxide octahedral molecular sieve chitosan microspheres (Fe3O4@OMS-2@CTS) on anaerobic and aerobic microbial communities during sewage biological treatment. The addition of Fe3O4@OMS-2@CTS (0.25 g/L) resulted in enhanced levels of operational performance for decolourization dye X-3B. However, degradation dye X-3B inhibition in the presence of Fe3O4@OMS-2@CTS was recorded as greater than or equal to 1.00 g/L. Illumina MiSeq high throughput sequencing of the 16 S rRNA gene showed that 108 genera were observed during the anaerobic process, while only 71 genera were observed during the aerobic process. The largest genera (Aequorivita) decreased from 21.14% to 12.65% and the Pseudomonas genera increased from 10.57% to 12.96% according to the abundance in the presence of 0.25 g/L Fe3O4@OMS-2@CTS during the anaerobic process. The largest Gemmatimonas genera decreased from 21.46% to 11.68% and the Isosphaerae genera increased from 5.8% to 11.98% according to the abundance in the presence of 0.25 g/L Fe3O4@OMS-2@CTS during the aerobic process. Moreover, the X-ray photoelectron spectroscopy results show that the valence states of Mn and Fe in Fe3O4@OMS-2@CTS changed during sewage biological treatment.
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.|Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan, 430073, China.|Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA.
authors.forename: Fei
authors.initials: F
authors.lastname: Pan
authors.affiliation: Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA.
authors.forename: Wen
authors.initials: W
authors.lastname: Liu
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Yu
authors.affiliation: School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430073, China.
authors.forename: Xianze
authors.initials: X
authors.lastname: Yin
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
authors.forename: Qingrong
authors.initials: Q
authors.lastname: Wang
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
authors.forename: Ziyan
authors.initials: Z
authors.lastname: Zheng
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
authors.forename: Min
authors.initials: M
authors.lastname: Wu
authors.affiliation: Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA.
authors.forename: Dongye
authors.initials: D
authors.lastname: Zhao
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
authors.forename: Qiu
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
authors.forename: Xiaoman
authors.initials: X
authors.lastname: Lei
authors.affiliation: School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
authors.forename: Dongsheng
authors.initials: D
authors.lastname: Xia
mesh_terms: D000693:Anaerobiosis; D001391:Azo Compounds / Q000378:metabolism; D001419:Bacteria / Q000145:classification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors / Q000382:microbiology; D048271:Chitosan / Q000737:chemistry*; D003116:Color; D052918:Environmental Restoration and Remediation / Q000379:methods*; D005290:Ferric Compounds / Q000737:chemistry; D006358:Hot Temperature; D017895:Manganese Compounds / Q000737:chemistry*; D008863:Microspheres; D009282:Naphthalenesulfonates / Q000378:metabolism; D010087:Oxides / Q000737:chemistry*; D010545:Peroxides / Q000737:chemistry; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D012722:Sewage / Q000382:microbiology*
chemical_list: D001391:Azo Compounds; D005290:Ferric Compounds; D017895:Manganese Compounds; D009282:Naphthalenesulfonates; D010087:Oxides; D010545:Peroxides; C520101:Reactive brilliant red X-3B; D012722:Sewage; C000499:ferric oxide; C038288:peroxymonosulfate; C027424:manganese oxide; D048271:Chitosan