DOI: 10.1016/j.watres.2018.01.052
Scopus记录号: 2-s2.0-85041554800
论文题名: The impact of loading approach and biological activity on NOM removal by ion exchange resins
作者: Winter J. ; Wray H.E. ; Schulz M. ; Vortisch R. ; Barbeau B. ; Bérubé P.R.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 134 起始页码: 301
结束页码: 310
语种: 英语
英文关键词: Biological ion exchange (BIEX)
; Column tests
; Ion exchange (IEX)
; Multiple loading tests (MLTs)
; Natural organic matter (NOM)
; Regeneration
Scopus关键词: Activated carbon
; Bioactivity
; Biogeochemistry
; Biological materials
; Impurities
; Ion exchange resins
; Ions
; Microorganisms
; Biological ion exchange (BIEX)
; Column test
; Multiple loading tests
; Natural organic matters
; Regeneration
; Ion exchange
; activated carbon
; ion exchange resin
; natural organic matter
; resin
; carbon
; activated carbon
; bioactivity
; ion exchange
; loading test
; microbial activity
; microbial community
; organic matter
; pollutant removal
; resin
; testing method
; water treatment
; adsorption
; alkalinity
; Article
; biological activity
; comparative study
; high performance liquid chromatography
; humic substance
; hydrodynamics
; ion exchange
; loading test
; microbial community
; molecular weight
; prediction
; priority journal
; size exclusion chromatography
; waste component removal
; devices
; procedures
; water management
; Carbon
; Ion Exchange
; Ion Exchange Resins
; Water Purification
英文摘要: The present study investigated the impact of different loading approaches and microbial activity on the Natural Organic Matter (NOM) removal efficiency and capacity of ion exchange resins. Gaining further knowledge on the impact of loading approaches is of relevance because laboratory-scale multiple loading tests (MLTs) have been introduced as a simpler and faster alternative to column tests for predicting the performance of IEX, but only anecdotal evidence exists to support their ability to forecast contaminant removal and runtime until breakthrough of IEX systems. The overall trends observed for the removal and the time to breakthrough of organic material estimated using MLTs differed from those estimated using column tests. The results nonetheless suggest that MLTs could best be used as an effective tool to screen different ion exchange resins in terms of their ability to remove various contaminants of interest from different raw waters. The microbial activity was also observed to impact the removal and time to breakthrough. In the absence of regeneration, a microbial community rapidly established itself in ion exchange columns and contributed to the removal of organic material. Biological ion exchange (BIEX) removed more organic material and enabled operation beyond the point when the resin capacity would have otherwise been exhausted using conventional (i.e. in the absence of a microbial community) ion exchange. Furthermore, significantly greater removal of organic matter could be achieved with BIEX than biological activated carbon (BAC) (i.e. 56 ± 7% vs. 15 ± 5%, respectively) when operated at similar loading rates. The results suggest that for some raw waters, BIEX could replace BAC as the technology of choice for the removal of organic material. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112913
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil Engineering, University of British Columbia, 6250 Applied Science Lane, Vancouver, BC V6T 1Z4, Canada; Department of Civil, Geological and Mining Engineering, Polytechnique Montreal, Montréal, QC H3T 1J4, Canada
Recommended Citation:
Winter J.,Wray H.E.,Schulz M.,et al. The impact of loading approach and biological activity on NOM removal by ion exchange resins[J]. Water Research,2018-01-01,134