DOI: 10.1016/j.watres.2018.04.037
Scopus记录号: 2-s2.0-85047397348
论文题名: Impact of ageing on the fate of molybdate-zerovalent iron nanohybrid and its subsequent effect on cyanobacteria (Microcystis aeruginosa) growth in aqueous media
作者: Su Y. ; Qian D. ; Adeleye A.S. ; Zhang J. ; Zhou X. ; Jassby D. ; Zhang Y.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 140 起始页码: 135
结束页码: 147
语种: 英语
英文关键词: Common ions
; Cyanobacteria
; Molybdate pollution
; nZVI
; Remobilization of Mo(VI)
Scopus关键词: Bacteria
; Groundwater
; Heavy metals
; Iron
; Metal ions
; Nanostructured materials
; River pollution
; Stabilization
; Chemical stabilization
; Common ions
; Cyanobacteria
; Microcystis aeruginosa
; Nanoscale zero-valent iron
; nZVI
; Remobilization
; Removal performance
; Molybdenum compounds
; chlorophyll a
; ferrous ion
; ground water
; iron nanoparticle
; iron oxide
; molybdic acid
; river water
; chlorophyll
; iron
; metal nanoparticle
; molybdenum
; molybdic acid
; water
; aqueous solution
; cyanobacterium
; environmental fate
; growth rate
; inhibition
; iron nanoparticle
; molybdenum
; pollutant removal
; remobilization
; transformation
; aging
; aqueous solution
; Article
; bacterial growth
; chemical composition
; chemical structure
; conductance
; controlled study
; growth inhibition
; immobilization
; Microcystis aeruginosa
; nonhuman
; pH
; priority journal
; synthesis
; transmission electron microscopy
; waste component removal
; water quality
; chemistry
; drug effect
; isolation and purification
; microbiology
; Microcystis
; procedures
; water management
; water pollutant
; Cyanobacteria
; Microcystis aeruginosa
; Chlorophyll
; Iron
; Metal Nanoparticles
; Microcystis
; Molybdenum
; Water
; Water Microbiology
; Water Pollutants, Chemical
; Water Purification
英文摘要: Nanoscale zerovalent iron (nZVI) has been proposed to remediate heavy metal ions in the subsurface. However, the fate of metal-nZVI hybrid has not been fully investigated. In this study, we investigated (1) the long-term removal performance of nZVI for molybdate (Mo(VI)); (2) the relationship between the ageing of Mo-nZVI hybrid in specific solution chemistries and the remobilization of Mo(VI) from the hybrid; and (3) the effects of Mo-nZVI hybrid on cyanobacteria (Microcystis aeruginosa). Results showed that although common ions have limited influence on the removal ratio of Mo(VI) by nZVI, they do impact the structure evolution and transformation of the Mo-nZVI nanohybrid formed thereafter. Ageing time was crucial for the chemical stabilization of Mo-nZVI hybrid, but common groundwater ions retarded the stabilizing process, which may lead to a significant remobilization of Mo(VI) from the hybrid after exposure to water bodies. While low levels of Mo(VI) ions could stimulate the growth of M. aeruginosa, aged Mo-nZVI hybrid inhibited the growth of M. aeruginosa, except when ageing occurred in the presence of HPO4 2−/CO3 2− (which also retarded hybrid stabilization). This study shows that nZVI can immobilize Mo(VI) ions in groundwater, and the derived metal-nZVI hybrid can effectively suppress the potential growth of M. aeruginosa in river water. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112694
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, China; Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, United States; Bren School of Environmental Science and Management, University of California, Santa Barbara, CA 93106-5131, United States; Institute of Urban Water Management, Technische Universität Dresden, Dresden, 01062, Germany
Recommended Citation:
Su Y.,Qian D.,Adeleye A.S.,et al. Impact of ageing on the fate of molybdate-zerovalent iron nanohybrid and its subsequent effect on cyanobacteria (Microcystis aeruginosa) growth in aqueous media[J]. Water Research,2018-01-01,140