Effects of average velocity on the growth and surface topography of biofilms attached to the reclaimed wastewater drip irrigation system laterals
文献类型：期刊论文
| 作者 | Li, Gui Bing ; Li, Yun Kai ; Xu, Ting Wu ; Liu, Yao Ze ; Jin, Hai ; Yang, Pei Ling ; Yan, Da Zhuang ; Ren, Shu Mei ; Tian, Zhi Fang |
| 刊名 | IRRIGATION SCIENCE
 |
| 出版日期 | 2012 |
| 卷号 | 30期号:2页码:103－113 |
| ISSN号 | 0342-7188 |
| 中文摘要 | Emitter clogging, a phenomenon commonly seen in reclaimed wastewater drip irrigation systems, is a severe obstacle to the wide applications and popularization of the irrigation technology. Some experiments showed that the emitter clogging was tightly related to biofilms formation attached to the irrigation system. In this paper, two types of wastewaters reclaimed respectively by fluidized-bed reactor (FBR) process and biological aerated filter (BAF) process were chosen as the experiment objects and then the effects of the average velocity on the growth and topography of biofilms attached to the irrigation laterals were studied. The parameters of biofilms reached their maximal values at a critical velocity of 0.45 m/s. The formation of biofilms was primarily controlled by the transport of the nutrients and suspended particles within the laterals when the average velocity is below the critical velocity, whereas it was primarily controlled by the hydraulic shear force when above the critical velocity. The main mechanism for emitter clogging was that the biofilms detached from laterals accumulated and grew at the inlets and outlets of emitters. A similar variation pattern was observed for both reclaimed wastewaters. However, the growth of biofilms for BAF process was more affected by the shear force than that for FBR process, since the nutrients and suspended particles for BAF were larger than those for FBR. |
| WOS记录号 | WOS:000302751900003 |
| 公开日期 | 2014-11-05 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7875]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Gui Bing,Li, Yun Kai,Xu, Ting Wu,et al. Effects of average velocity on the growth and surface topography of biofilms attached to the reclaimed wastewater drip irrigation system laterals[J]. IRRIGATION SCIENCE,2012,30(2):103－113. |
| APA | Li, Gui Bing.,Li, Yun Kai.,Xu, Ting Wu.,Liu, Yao Ze.,Jin, Hai.,...&Tian, Zhi Fang.(2012).Effects of average velocity on the growth and surface topography of biofilms attached to the reclaimed wastewater drip irrigation system laterals.IRRIGATION SCIENCE,30(2),103－113. |
| MLA | Li, Gui Bing,et al."Effects of average velocity on the growth and surface topography of biofilms attached to the reclaimed wastewater drip irrigation system laterals".IRRIGATION SCIENCE 30.2(2012):103－113. |
入库方式： OAI收割
来源：生态环境研究中心
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