Effects of oxygen and water content on microbial distribution in the polyurethane foam cubes of a biofilter for SO2 removal
文献类型：期刊论文
| 作者 | Liu, Junxin; Wang, Yanjie; Li, Lin; Zhang, Jingying |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2018 |
| 卷号 | 63页码:268-276 |
| 关键词 | Polyurethane foam cube Biofilter O-2 distribution Water-containing rate Microbial population |
| ISSN号 | 1001-0742 |
| 文献子类 | Article |
| 英文摘要 | The performance of a biofilter for off-gas treatment relies on the activity of microorganisms and adequate O-2 and H2O. In present study, a microelectrode was applied to analyze O-2 in polyurethane foam cubes (PUFCs) packed in a biofilter for SO2 removal. The O-2 distribution varied with the density and water-containing rate (WCR) of PUFCs. The O-2 concentration dropped sharply from 10.2 to 0.8 mg/L from the surface to the center of a PUFC with 97.20% of WCR. The PUFCs with high WCR presented aerobic-anoxic-aerobic areas. Three-dimensional simulated images demonstrated that the structure of PUFCs with high WCR consisted of an aerobic "shell" and an anoxic "core", with high-density PUFCs featuring a larger anoxic area than low-density PUFCs. Moreover, the H2O distribution in the PUFC was uneven and affected the O-2 concentration. Whereas aerobic bacteria were observed in the PUFC surface, facultative anaerobic microorganisms were found at the PUFC core, where the O-2 concentration was relatively low. O-2 and H2O distributions differed in the PUFCs, and the distribution of microorganisms varied accordingly. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41134]  |
| 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 | Liu, Junxin,Wang, Yanjie,Li, Lin,et al. Effects of oxygen and water content on microbial distribution in the polyurethane foam cubes of a biofilter for SO2 removal[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2018,63:268-276. |
| APA | Liu, Junxin,Wang, Yanjie,Li, Lin,&Zhang, Jingying.(2018).Effects of oxygen and water content on microbial distribution in the polyurethane foam cubes of a biofilter for SO2 removal.JOURNAL OF ENVIRONMENTAL SCIENCES,63,268-276. |
| MLA | Liu, Junxin,et al."Effects of oxygen and water content on microbial distribution in the polyurethane foam cubes of a biofilter for SO2 removal".JOURNAL OF ENVIRONMENTAL SCIENCES 63(2018):268-276. |
入库方式： OAI收割
来源：生态环境研究中心
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