DOI: 10.1016/j.watres.2018.09.042
Scopus记录号: 2-s2.0-85054081284
论文题名: Understanding the potential for selective natural organic matter removal by ion exchange
作者: Finkbeiner P. ; Redman J. ; Patriarca V. ; Moore G. ; Jefferson B. ; Jarvis P.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 146 起始页码: 256
结束页码: 263
语种: 英语
英文关键词: Coagulation
; Disinfection by-products
; Ion-exchange
; Natural organic matter
; Organic carbon
英文摘要: Dissolved organic carbon (DOC) removal from a river water source was investigated using ion exchange (IEX), coagulation and membrane filtration. This research linked the variable charge characteristics of the organic compounds present in the source water with removal by IEX and coagulation. The raw water charge density fluctuated considerably (between 5.4 and 10.7 meq mgDOC −1) and controlled removal of the charge loading. Importantly, charge density was not correlated with the organic carbon concentration. The combined IEX and coagulation process reduced the specific DBP-FP (sDBP-FP) of the final water, with values as low as 18 μg mgDOC −1 for both haloacetic acids and trihalomethanes. IEX removed a particular fraction of NOM that 1) enhanced coagulation efficiency, providing increased removal of overall DOC; and 2) enabled coagulation to subsequently remove higher levels of specific components of NOM that have a high DBP-FP. The component of NOM removed by IEX that had a positive impact on coagulation was identified to be charged low molecular weight organic compounds of all hydrophobicity levels, resulting in a reduced specific DBP-FP compared to coagulation alone. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112392
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Cranfield Water Science Institute, Cranfield University, Building 52a, Cranfield, Bedford, MK43 0AL, United Kingdom; Scottish Water, Castle House, 6 Castle Drive, Dunfermline, KY11 8GG, United Kingdom
Recommended Citation:
Finkbeiner P.,Redman J.,Patriarca V.,et al. Understanding the potential for selective natural organic matter removal by ion exchange[J]. Water Research,2018-01-01,146