Biological sulfate removal from acrylic fiber manufacturing wastewater using a two-stage UASB reactor
文献类型：期刊论文
| 作者 | Li, Jin ; Wang, Jun ; Luan, Zhaokun ; Ji, Zhongguang ; Yu, Lian |
| 刊名 | Environmental Sciences & Ecology
 |
| 出版日期 | 2012 |
| 卷号 | 24期号:2页码:343-350 |
| 关键词 | a two-stage UASB reactor sulfidogenesis granule fluorescence in situ hybridization (FISH) |
| ISSN号 | 1001-0742 |
| 中文摘要 | A two-stage UASB reactor was employed to remove sulfate from acrylic fiber manufacturing wastewater. Mesophilic operation (35 +/- 0.5 degrees C) was performed with hydraulic retention time (HRT) varied between 28 and 40 hr. Mixed liquor suspended solids (MLSS) in the reactor was maintained about 8000 mg/L. The results indicated that sulfate removal was enhanced with increasing the ratio of COD/SO42-. At low COD/SO42-, the growth of the sulfate-reducing bacteria (SRB) was carbon-limited. The optimal sulfate removal efficiencies were 75% when the HRT was no less than 38 hr. Sulfidogenesis mainly happened in the sulfate-reducing stage, while methanogenesis in the methane-producing stage. Microbes in sulfate-reducing stage performed granulation better than that in methane-producing stage. Higher extracellular polymeric substances (EPS) content in sulfate-reducing stage helped to adhere and connect the flocculent sludge particles together. SRB accounted for about 31% both in sulfate-reducing stage and methane-producing stage at COD/SO42- ratio of 0.5, while it dropped dramatically from 34% in sulfate-reducing stage to 10% in methane-producing stage corresponding to the COD/SO42- ratio of 4.7. SRB and MPA were predominant in sulfate-reducing stage and methane-producing stage respectively. |
| WOS记录号 | WOS:000300653300024 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8116]  |
| 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 | Li, Jin,Wang, Jun,Luan, Zhaokun,et al. Biological sulfate removal from acrylic fiber manufacturing wastewater using a two-stage UASB reactor[J]. Environmental Sciences & Ecology,2012,24(2):343-350. |
| APA | Li, Jin,Wang, Jun,Luan, Zhaokun,Ji, Zhongguang,&Yu, Lian.(2012).Biological sulfate removal from acrylic fiber manufacturing wastewater using a two-stage UASB reactor.Environmental Sciences & Ecology,24(2),343-350. |
| MLA | Li, Jin,et al."Biological sulfate removal from acrylic fiber manufacturing wastewater using a two-stage UASB reactor".Environmental Sciences & Ecology 24.2(2012):343-350. |
入库方式： OAI收割
来源：生态环境研究中心
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