期刊
WATER RESEARCH
卷 39, 期 13, 页码 2883-2892出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2005.05.024
关键词
phosphorus; microbial regrowth; nutrient; iron pipe; corrosion
Control of microbial regrowth in iron pipes is a major challenge for water utilities. This work examines the interrelationship between iron corrosion and bacterial regrowth, with a special focus on the potential of iron pipe to serve as a source of phosphorus. Under some circumstances, corroding iron and steel may serve as a source for all macronutrients necessary for bacterial regrowth including fixed carbon, fixed nitrogen and phosphorus. Conceptual models and experimental data illustrate that levels of phosphorus released from corroding iron are significant relative to that necessary to sustain high levels of biofilm bacteria. Consequently, it may not be possible to control regrowth on iron surfaces by limiting phosphorus in the bulk water. (c) 2005 Elsevier Ltd. All rights reserved.
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