DOI: 10.1016/j.watres.2017.12.060
Scopus记录号: 2-s2.0-85042864912
论文题名: Pore diffusion limits removal of monochloramine in treatment of swimming pool water using granular activated carbon
作者: Skibinski B. ; Götze C. ; Worch E. ; Uhl W.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 132 起始页码: 270
结束页码: 281
语种: 英语
英文关键词: Diffusion control
; Granular activated carbon
; Monochloramine
; Surface catalytic reaction
; Swimming pool water
Scopus关键词: Activated carbon
; Catalysis
; Chemical reactors
; Granular materials
; Lakes
; Pore size
; Reaction rates
; Surface reactions
; Swimming pools
; Water treatment
; Diffusion control
; Granular activated carbons
; Monochloramine
; Surface-catalytic reaction
; Swimming pool water
; Activated carbon treatment
英文摘要: Overall apparent reaction rates for the removal of monochloramine (MCA) in granular activated carbon (GAC) beds were determined using a fixed-bed reactor system and under conditions typical for swimming pool water treatment. Reaction rates dropped and quasi-stationary conditions were reached quickly. Diffusional mass transport in the pores was shown to be limiting the overall reaction rate. This was reflected consistently in the Thiele modulus, in the effect of temperature, pore size distribution and of grain size on the reaction rates. Pores <2.5 times the diameter of the monochloramine molecule were shown to be barely accessible for the monochloramine conversion reaction. GACs with a significant proportion of large mesopores were found to have the highest overall reactivity for monochloramine removal. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112967
Appears in Collections: 气候减缓与适应
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作者单位: Technische Universität Dresden, Chair of Water Supply Engineering, Dresden, 01062, Germany; Technische Universität Dresden, Chair of Hydrochemistry, Dresden, 01062, Germany; Norwegian Institute for Water Research (NIVA), Oslo, 0349, Norway
Recommended Citation:
Skibinski B.,Götze C.,Worch E.,et al. Pore diffusion limits removal of monochloramine in treatment of swimming pool water using granular activated carbon[J]. Water Research,2018-01-01,132