Legionella growth potential of drinking water produced by a reverse osmosis pilot plant

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Legionella growth potential of drinking water produced by a reverse osmosis pilot plant
	Learbuch, K. L. G.; Lut, M. C.; Liu, G.; Smidt, H.; van der Wielen, P. W. J. J.
刊名	WATER RESEARCH
	2019-06-15
卷号	157 页码:55-63
关键词	Legionella pneumophila Reverse osmosis Regrowth Drinking water quality
ISSN号	0043-1354
英文摘要	Treatment processes, such as membrane filtration with reverse osmosis (RU), are used to produce drinking water with a high degree of biostability. To our knowledge, the influence of RO water on biofilm formation and growth of L. pneumophila has not yet been investigated. Therefore, this study aimed (i) to determine the Legionella growth potential of (remineralised) RO-water produced by a pilot plant and to compare this to conventional treated groundwater, and (ii) to determine if different pipe materials, in contact with remineralised RO-water, can cause growth of L. pneumophila. The Legionella growth potential of water was determined with the boiler biofilm monitor (BBM) that mimics the flow of water in a premise plumbing system. The Legionella growth potential of materials in contact with remineralised RO-water was determined by using the biomass production potential (BPP)-test. ATP concentrations in the biofilm on the glass rings from the BBM fed with (remineralised) RO water fluctuated around 100 mu g ATP cm(-2). In contrast, BBM5 fed with conventionally treated water resulted in ten-fold higher ATP concentrations in the biofilm. Moreover, conventionally treated water had a Legionella growth potential that was 1000-fold higher than that of (remineralised) RO-water. Furthermore, glass, copper and PVC-C had the lowest biofilm concentrations and Legionella growth potential in the BPP-test, followed by PE-Xb, PE-Xc and PE-100. The highest biofilm concentration and Legionella growth potential were with PVC-P. Hence, our study demonstrated that remineralised RO-water did not enhance growth of L. pneumophila in the BBM that mimics the premises plumbing system. However, when PE or PVC-P materials are used growth of L. pneumophila can still occur in the premises plumbing system despite the high quality of the supplied remineralised RO-water. (C) 2019 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43484]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
作者单位	1.KWR Watercycle Res Inst, Groningenhaven 7, NL-3433 PE Nieuwegein, Netherlands 2.Oasen NV, Nieuwe Gouwe OZ 3, NL-2801 SB Gouda, Netherlands 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 4.Delft Univ Technol, Fac Civil Engn & Geosci, Dept Water Management, Sanit Engn, POB 5048, NL-2600 GA Delft, Netherlands 5.Wageningen Univ & Res, Microbiol Lab, Stippeneng 4, NL-6708 WE Wageningen, Netherlands
推荐引用方式 GB/T 7714	Learbuch, K. L. G.,Lut, M. C.,Liu, G.,et al. Legionella growth potential of drinking water produced by a reverse osmosis pilot plant[J]. WATER RESEARCH,2019,157:55-63.
APA	Learbuch, K. L. G.,Lut, M. C.,Liu, G.,Smidt, H.,&van der Wielen, P. W. J. J..(2019).Legionella growth potential of drinking water produced by a reverse osmosis pilot plant.WATER RESEARCH,157,55-63.
MLA	Learbuch, K. L. G.,et al."Legionella growth potential of drinking water produced by a reverse osmosis pilot plant".WATER RESEARCH 157(2019):55-63.