標題: Profiling vertical distribution of scalants in RO membranes by LA-ICP-MS and fouling models
作者: Lin, Justin Chun-Te
Wang, Tsinghai
Ku, Yu-Hsuan
Hsieh, Yi-Kong
Wang, Chu-Fang
防災與水環境研究中心
Disaster Prevention and Water Environment Research Center
關鍵字: LA-ICP-MS;Membrane scaling;Vertical distribution;Spot mode;Reverse osmosis
公開日期: 5-十一月-2014
摘要: The vertical distribution of scalants as a result of 24 h of filtration of simulated low-level radioactive liquid waste in the reverse osmosis (RO) membranes was characterized by means of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Our results suggested that the development of scalants is associated with the formation of metal hydroxide colloids, while these colloids might penetrate relatively deeper into the membrane under the acid environment than under the alkaline environment. Fitting with a two-phase fouling Hermia\'s model suggested that the development of cake-like scalants in the first 5 h under alkaline environment is responsible for hindering the assess of metal hydroxides into the membrane so that they would not penetrate as deep as they do under the acid environment. (C) 2014 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.seppur.2014.08.018
http://hdl.handle.net/11536/123916
ISSN: 1383-5866
DOI: 10.1016/j.seppur.2014.08.018
期刊: SEPARATION AND PURIFICATION TECHNOLOGY
Volume: 136
起始頁: 296
結束頁: 302
顯示於類別:期刊論文


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  1. 000344831100037.pdf