Impacts of sludge retention time on the performance of an algal-bacterial bioreactor
文献类型：期刊论文
| 作者 | Yang, Jixiang1 ; Gou, Yao2; Fang, Fang2; Guo, Jinsong2; Ma, Hua2; Wei, Xiangyang1; Shahmoradi, Behzad3
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 343页码:37-43 |
| 关键词 | Algae Membrane bioreactor Photo Wastewater Algal Bacterial |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2018.02.118 |
| 英文摘要 | The impacts of sludge retention time (SRT) on the performance of algal-bacterial reactors were evaluated. Membrane reactors A and B were applied at SRTs of 10 days and 20 days, respectively. A low hydraulic retention time, eight hours, was intentionally applied for showing the effect of SRT. Results showed that biomass concentration did not exceed 2 g/L. Without external oxygen supply, the chemical oxygen demand (COD) removal efficiencies were approximately 60% and 50% at the SRTs of 20 days and 10 days, respectively. Ammonium removal efficiencies were approximately 50% in the two reactors. Slight aeration increased the COD and ammonium removal efficiencies to approximately 90% and 100% respectively in the reactor B, whereas the improvements in the reactor A were less. Ammonium oxidation bacteria (AOB) were effectively washed out by applying the SRT of 10 days, whereas much more AOB were detected in the reactor B. The presence of phosphate accumulation organisms in continuously illuminated reactors was proved by high throughput sequencing. Strikingly, the reactor B showed higher phosphate removal efficiency at the conditions that more AOB, which competed for ammonium against algae, were detected in the reactor B. Therefore, improving phosphate removal by washing out AOB via SRT control is not feasible. Furthermore, the SRT also had significant impacts on algal ecology. Microscopic examination showed that Oscillatoria sp., the most active algae, dominated in the reactors, whereas the low SRT washed out Chlorella sp., Diatoms sp., Closterium sp. Generally, experimental results suggested that SRT of 20 days showed better reactor performance. |
| 资助项目 | National Science and Technology Pillar Program, China[2015BAD13B03] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000430269200005 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/6292]  |
| 专题 | 水质生物转化研究中心 |
| 通讯作者 | Yang, Jixiang |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China 2.Chongqing Univ, Sch Urban Construct & Environm Engn, Chongqing, Peoples R China 3.Kurdistan Univ Med Sci, Environm Hlth Res Ctr, Res Inst Hlth Dev, Dept Environm Hlth Engn, Sanandaj, Iran |
| 推荐引用方式 GB/T 7714 | Yang, Jixiang,Gou, Yao,Fang, Fang,et al. Impacts of sludge retention time on the performance of an algal-bacterial bioreactor[J]. CHEMICAL ENGINEERING JOURNAL,2018,343:37-43. |
| APA | Yang, Jixiang.,Gou, Yao.,Fang, Fang.,Guo, Jinsong.,Ma, Hua.,...&Shahmoradi, Behzad.(2018).Impacts of sludge retention time on the performance of an algal-bacterial bioreactor.CHEMICAL ENGINEERING JOURNAL,343,37-43. |
| MLA | Yang, Jixiang,et al."Impacts of sludge retention time on the performance of an algal-bacterial bioreactor".CHEMICAL ENGINEERING JOURNAL 343(2018):37-43. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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