Effects of disinfectant and biofilm on the corrosion of cast iron pipes in a reclaimed water distribution system
文献类型：期刊论文
| 作者 | Wang, Haibo ; Hu, Chun ; Hu, Xuexiang ; Yang, Min ; Qu, Jiuhui |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2012 |
| 卷号 | 46期号:4页码:1070－1078 |
| 关键词 | Biofilm Chlorine Corrosion Reclaimed water distribution system |
| ISSN号 | 0043-1354 |
| 中文摘要 | The effects of disinfection and biofilm on the corrosion of cast iron pipe in a model reclaimed water distribution system were studied using annular reactors (ARs). The corrosion scales formed under different conditions were characterized by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), and scanning electron microscopy (SEM), while the bacterial characteristics of biofilm on the surface were determined using several molecular methods. The corrosion scales from the ARs with chlorine included predominantly alpha-FeOOH and Fe2O3, while CaPO3(OH)center dot 2H(2)O and alpha-FeOOH were the predominant phases after chloramines replaced chlorine. Studies of the consumption of chlorine and iron release indicated that the formation of dense oxide layers and biofilm inhibited iron corrosion, causing stable lower chlorine decay. It was verified that iron-oxidizing bacteria (IOB) such as Sediminibacterium sp., and iron-reducing bacteria (IRB) such as Shewanella sp., synergistically interacted with the corrosion product to prevent further corrosion. For the ARs without disinfection, alpha-FeOOH was the predominant phase at the primary stage, while CaCO3 and alpha-FeOOH were predominant with increasing time. The mixed corrosion-inducing bacteria, including the IRB Shewanella sp., the IOB Sediminibacterium sp., and the sulfur-oxidizing bacteria (SOB) Limnobacter thioxidans strain, promoted iron corrosion by synergistic interactions in the primary period, while anaerobic IRB became the predominant corrosion bacteria, preventing further corrosion via the formation of protective layers. (C) 2011 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000300540000016 |
| 公开日期 | 2014-11-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7832]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Haibo,Hu, Chun,Hu, Xuexiang,et al. Effects of disinfectant and biofilm on the corrosion of cast iron pipes in a reclaimed water distribution system[J]. WATER RESEARCH,2012,46(4):1070－1078. |
| APA | Wang, Haibo,Hu, Chun,Hu, Xuexiang,Yang, Min,&Qu, Jiuhui.(2012).Effects of disinfectant and biofilm on the corrosion of cast iron pipes in a reclaimed water distribution system.WATER RESEARCH,46(4),1070－1078. |
| MLA | Wang, Haibo,et al."Effects of disinfectant and biofilm on the corrosion of cast iron pipes in a reclaimed water distribution system".WATER RESEARCH 46.4(2012):1070－1078. |
入库方式： OAI收割
来源：生态环境研究中心
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