DOI: 10.1016/j.watres.2018.12.043
Scopus记录号: 2-s2.0-85059421812
论文题名: Enhanced fermentative hydrogen production from industrial wastewater using mixed culture bacteria incorporated with iron, nickel, and zinc-based nanoparticles
作者: Elreedy A. ; Fujii M. ; Koyama M. ; Nakasaki K. ; Tawfik A.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 349
结束页码: 361
语种: 英语
英文关键词: Enzymatic activity
; Fermentative hydrogen generation
; Intermediate metabolites
; Metal nanoparticles
; Microbial community structure
; Mono-ethylene glycol
Scopus关键词: Bacteria
; Ethylene
; Ethylene glycol
; Hematite
; II-VI semiconductors
; Iron
; Metal nanoparticles
; Nickel oxide
; Polyols
; Zinc oxide
; Enzymatic activities
; Hydrogen generations
; Intermediate metabolites
; Microbial community structures
; Mono ethylene glycols
; Hydrogen production
; acetaldehyde
; acetic acid
; alcohol dehydrogenase
; aldehyde dehydrogenase
; ethylene glycol
; ferric oxide
; hydrogen
; hydrogenase
; iron nanoparticle
; metal nanoparticle
; metal oxide
; nickel
; nickel nanoparticle
; RNA 16S
; vasopressin
; zinc
; zinc oxide
; bacterium
; chemical compound
; community structure
; enzyme
; enzyme activity
; hydrogen
; metabolite
; microbial community
; microbial ecology
; nanoparticle
; relative abundance
; wastewater
; wastewater treatment
; anaerobic digestion
; archaeon
; Article
; bacterium culture
; biomass
; Clostridiaceae
; enzymatic assay
; enzyme activity
; fermentation
; metabolite
; microbial community
; mixed cell culture
; nonhuman
; priority journal
; scanning electron microscopy
; waste water
; Clostridiaceae
; Clostridiales
英文摘要: The present study assessed the efficiency of utilizing mixed culture bacteria (MCB) incorporated with individual nanoparticles (NPs), i.e., hematite (α-Fe2O3), nickel oxide (NiO), and zinc oxide (ZnO), dual NPs (α-Fe2O3 + NiO, α-Fe2O3 + ZnO, and NiO + ZnO), and multi-NPs (α-Fe2O3 + NiO + ZnO) for hydrogen production (HP) from industrial wastewater containing mono-ethylene glycol (MEG). When MCB was individually supplemented with α-Fe2O3 (200 mg/L), NiO (20 mg/L), and ZnO NPs (10 mg/L), HP improved significantly by 41, 30, and 29%, respectively. Further, key enzymes associated with MEG metabolism, such as alcohol dehydrogenase (ADH), aldehyde dehydrogenase (ALDH), and hydrogenase (hyd), were rapidly and substantially enhanced in the medium. NiO and ZnO NPs notably promoted ADH and ALDH activities, respectively, while α-Fe2O3 exhibited superior impact on hyd activity. Maximum hydrogen production rate was concomitant with higher acetic acid production and lower residual acetaldehyde and ethanol. HP using MCB supplemented with individual NiO (20 mg/L) and ZnO NPs (10 mg/L) further improved by 8.0%–14% when dual and multi-NPs were used; the highest HP was recorded when multi-NPs were used. In addition, NPs incorporation resulted in substantial increase in the relative abundance of Clostridiales (belonging to family Clostridiaceae; > 83%). Overall, this study provides significant insights into the impact of NPs on hydrogen production from MEG-contaminated wastewater. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122044
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8550, Japan; Sanitary Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, 21544, Egypt; School of Environment and Society, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8550, Japan; Water Pollution Research Department, National Research Centre, Giza, 12622, Egypt
Recommended Citation:
Elreedy A.,Fujii M.,Koyama M.,et al. Enhanced fermentative hydrogen production from industrial wastewater using mixed culture bacteria incorporated with iron, nickel, and zinc-based nanoparticles[J]. Water Research,2019-01-01