DOI: 10.1016/j.watres.2017.12.025
Scopus记录号: 2-s2.0-85038263500
论文题名: High rejection reverse osmosis membrane for removal of N-nitrosamines and their precursors
作者: Fujioka T. ; Ishida K.P. ; Shintani T. ; Kodamatani H.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 131 起始页码: 45
结束页码: 51
语种: 英语
英文关键词: Heat treatment
; N-nitrosamine precursor
; N-nitrosodimethylamine
; Potable water reuse
; Reverse osmosis
Scopus关键词: Heat treatment
; Nitrosamines
; Potable water
; Quality assurance
; Reverse osmosis
; Wastewater reclamation
; Water conservation
; Water quality
; Water supply
; Fouling propensities
; High permeability
; Indirect potable reuse
; N-nitrosamines
; N-nitrosodimethylamine
; Potable water reuse
; Secondary amines
; Separation performance
; Membranes
; dimethylnitrosamine
; drinking water
; nitrosamine
; drinking water
; feasibility study
; membrane
; permeability
; pollutant removal
; recycling
; reverse osmosis
; separation
; water quality
; Article
; feasibility study
; fouling control
; heat treatment
; membrane conductance
; membrane permeability
; membrane transport
; precursor
; priority journal
; reverse osmosis
; waste component removal
英文摘要: Direct potable reuse is becoming a feasible option to cope with water shortages. It requires more stringent water quality assurance than indirect potable reuse. Thus, the development of a high-rejection reverse osmosis (RO) membrane for the removal of one of the most challenging chemicals in potable reuse – N-nitrosodimethylamine (NDMA) – ensures further system confidence in reclaimed water quality. This study aimed to achieve over 90% removal of NDMA by modifying three commercial and one prototype RO membrane using heat treatment. Application of heat treatment to a prototype membrane resulted in a record high removal of 92% (1.1-log) of NDMA. Heat treatment reduced conductivity rejection and permeability, while secondary amines, selected as N-nitrosamine precursors, were still well rejected (>98%) regardless of RO membrane type. This study also demonstrated the highly stable separation performance of the heat-treated prototype membrane under conditions of varying feed temperature and permeate flux. Fouling propensity of the prototype membrane was lower than a commercial RO membrane. This study identified a need to develop highly selective RO membranes with high permeability to ensure the feasibility of using these membranes at full scale. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113021
Appears in Collections: 气候减缓与适应
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作者单位: Water and Environmental Engineering, Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan; Research & Development Department, Orange County Water District, 18700 Ward Street, Fountain Valley, CA 92708, United States; Division of Advanced Membrane Science and Technology, Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Kobe, 657-8501, Japan; Division of Earth and Environmental Science, Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima, 890-0065, Japan
Recommended Citation:
Fujioka T.,Ishida K.P.,Shintani T.,et al. High rejection reverse osmosis membrane for removal of N-nitrosamines and their precursors[J]. Water Research,2018-01-01,131