DOI: 10.2166/wcc.2014.021
论文题名: The evolution of organic character in a drought- and flood-impacted water source and the relationship with drinking water treatment
作者: Fabris R. ; Braun K. ; Morran J.Y. ; Ho L. ; Drikas M.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2015
卷: 6, 期: 3 起始页码: 401
结束页码: 413
语种: 英语
英文关键词: Flood waters
; GAC
; MF
; MIEX
; NF
; NOM characterisation
英文摘要: A pilot-scale research investigation examining treatment technologies including coagulation, ion-exchange, activated carbon and membrane filtration and their impact on water quality coincided with a period of extensive variability in source water character. Distinct water quality periods as a result of extreme climatic conditions from drought to flood were observed and the natural organic matter (NOM) removal examined using a suite of organic characterisation techniques from simple ultraviolet (UV) absorbance to more advanced spectroscopic and chromatographic methods. The low specificUV absorbance (SUVA) and apparent molecular weight (AMW) distribution of the drought-impacted NOM was recalcitrant to coagulation with significant improvement in NOM removal resulting from the multi-step treatments. Among a number of discernible changes, floodwaters introduced high AMW, UV-absorbing NOM of terrestrial origin, which was shown to be more amenable to coagulation. Nevertheless the application of multi-step treatments resulted in further reduction in both the concentration and diversity of organic components. Filtration through granular activated carbon was observed to be the most variable treatment technology across the investigated period due to diminishing adsorption capacity. Conversely, the dual stage membrane filtration was shown to remove a broad range of organic matter, regardless of source water NOM concentration and character. © IWA Publishing 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67654
Appears in Collections: 气候减缓与适应
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作者单位: Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA, Australia
Recommended Citation:
Fabris R.,Braun K.,Morran J.Y.,et al. The evolution of organic character in a drought- and flood-impacted water source and the relationship with drinking water treatment[J]. Journal of Water and Climate Change,2015-01-01,6(3)