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The effect of step-feeding distribution ratio on high concentration perchlorate removal performance in ABR system with heterotrophic combined sulfur autotrophic process.

Author(s): Li H, Li K, Guo J, Chen Z, Han Y, Song Y, Lu C, Hou Y, Zhang D, Zhang Y

In a lab-scale anaerobic baffled reactor (ABR) with eight compartments, the heterotrophic and sulfur autotrophic processes were combined to remove perchlorate. And then, the step-feeding distribution ratio of the heterotrophic perchlorate reduction unit (HP...

Article GUID: 33485237
Acceleration mechanism of bioavailable Fe(Ⅲ) on Te(IV) bioreduction of Shewanella oneidensis MR-1: Promotion of electron generation, electron transfer and energy level.

Author(s): He Y, Guo J, Song Y, Chen Z, Lu C, Han Y, Li H, Hou Y, Zhao R

The release of highly toxic tellurite into the aquatic environment poses significant environmental risks. The acceleration mechanism and tellurium nanorods (TeNPs) characteristics with bioavailable ferric citrate (Fe(III)) were investigated in the tellurite...

Article GUID: 32853890
Exploring the biophysicochemical alteration of green alga Asterococcus superbus interactively affected by nanoparticles, triclosan and illumination.

Author(s): Xin X, Huang G, An C, Lu C, Xiong W

J Hazard Mater. 2020 May 21;398:122855 Authors: Xin X, Huang G, An C, Lu C, Xiong W

Article GUID: 32473326
Effect and ameliorative mechanisms of polyoxometalates on the denitrification under sulfonamide antibiotics stress.

Author(s): Guo H, Chen Z, Lu C, Guo J, Li H, Song Y, Han Y, Hou Y

Bioresour Technol. 2020 Feb 22;305:123073 Authors: Guo H, Chen Z, Lu C, Guo J, Li H, Song Y, Han Y, Hou Y

Article GUID: 32145698
Effect of dissolved oxygen on simultaneous removal of ammonia, nitrate and phosphorus via biological aerated filter with sulfur and pyrite as composite fillers.

Author(s): Li Y, Guo J, Li H, Song Y, Chen Z, Lu C, Han Y, Hou Y

Bioresour Technol. 2019 Oct 28;296:122340 Authors: Li Y, Guo J, Li H, Song Y, Chen Z, Lu C, Han Y, Hou Y

Article GUID: 31704601
Enhanced denitrification performance and biocatalysis mechanisms of polyoxometalates as environmentally-friendly inorganic redox mediators.

Author(s): Guo H, Chen Z, Guo J, Lu C, Song Y, Han Y, Li H, Hou Y

Bioresour Technol. 2019 Jul 16;291:121816 Authors: Guo H, Chen Z, Guo J, Lu C, Song Y, Han Y, Li H, Hou Y

Article GUID: 31344631
Title:Effect and ameliorative mechanisms of polyoxometalates on the denitrification under sulfonamide antibiotics stress.
Authors:Guo H,  Chen Z,  Lu C,  Guo J,  Li H,  Song Y,  Han Y,  Hou Y
Link:https://www.ncbi.nlm.nih.gov/pubmed/32145698?dopt=Abstract
DOI:10.1016/j.biortech.2020.123073
Category:Bioresour Technol
PMID:32145698
Dept Affiliation: ENCS
1 School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China.
2 Department of Building, Civil, and Environmental Engineering, Concordia University, 1455 de Maisonneuve Blvd. W. Montreal, Quebec, Canada.
3 School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China. Electronic address: lucaicai2010@163.com.
4 School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China. Electronic address: jianbguo@163.com.

Description:

Effect and ameliorative mechanisms of polyoxometalates on the denitrification under sulfonamide antibiotics stress.

Bioresour Technol. 2020 Feb 22;305:123073

Authors: Guo H, Chen Z, Lu C, Guo J, Li H, Song Y, Han Y, Hou Y

Abstract

The environmental risks of the sulfonamide antibiotics have attracted much attention recently. In this study, the inhibition effects of sulfadiazine (SDZ) on denitrification electron transfer system (ETS) and ameliorative mechanisms of phosphomolybdic acid (PMo12) were first explored. When denitrification was under 2 mg/L SDZ stress, experiments indicated that PMo12 enhanced NO3--N reduction efficiency and rate from 68.30% to 100.00% and 124.22 to 184.59 N/g VSS/h, respectively. Electron transfer rate and consumption efficiency in denitrification ETS were enhanced to ameliorate SDZ inhibition, which was due to the more secreted riboflavin and cytochrome c and the increased denitrifying enzymes activity with PMo12 mediation. In addition, the microbial growth inhibition and cell membrane damage were ameliorated due to the more EPS surrounding microbe with PMo12 mediation. Higher diversity of denitrifying microbe with PMo12 mediation also promoted denitrification under SDZ stress. This work provided promising strategy to ameliorate antibiotics inhibition in the wastewater bio-treatment.

PMID: 32145698 [PubMed - as supplied by publisher]