Optimization of In Situ Backwashing Frequency for Stable Operation of Anaerobic Ceramic Membrane Bioreactor
文献类型：期刊论文
| 作者 | Nilusha, Rathmalgodage Thejani; Wang, Tuo; Wang, Hongyan ; Yu, Dawei; Zhang, Junya; Wei, Yuansong
|
| 刊名 | PROCESSES
 |
| 出版日期 | 2020-05 |
| 卷号 | 8期号:5页码:1-8 |
| 关键词 | ceramic membrane domestic wastewater ambient temperature backwashing flux recovery |
| 英文摘要 | The cost-effective and stable operation of an anaerobic ceramic membrane bioreactor (AnCMBR) depends on operational strategies to minimize membrane fouling. A novel strategy for backwashing, filtration and relaxation was optimized for stable operation of a side stream tubular AnCMBR treating domestic wastewater at the ambient temperature. Two in situ backwashing schemes (once a day at 60 s/day, and twice a day at 60 s x 2/day) maintaining 55 min filtration and 5 min relaxation as a constant were compared. A flux level over 70% of the initial membrane flux was stabilized by in situ permeate backwashing irrespective of its frequency. The in situ backwashing by permeate once a day was better for energy saving, stable membrane filtration and less permeate consumption. Ex situ chemical cleaning after 60 days' operation was carried out using pure water, sodium hypochlorite (NaOCl), and citric acid as the order. The dominant cake layer was effectively reduced by in situ backwashing, and the major organic foulants were fulvic acid-like substances and humic acid-like substances.Proteobacteria,Firmucutes,EpsilonbacteriaandBacteroideswere the major microbes attached to the ceramic membrane fouling layer which were effectively removed by NaOCl. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45052]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Nilusha, Rathmalgodage Thejani,Wang, Tuo,Wang, Hongyan,et al. Optimization of In Situ Backwashing Frequency for Stable Operation of Anaerobic Ceramic Membrane Bioreactor[J]. PROCESSES,2020,8(5):1-8. |
| APA | Nilusha, Rathmalgodage Thejani,Wang, Tuo,Wang, Hongyan,Yu, Dawei,Zhang, Junya,&Wei, Yuansong.(2020).Optimization of In Situ Backwashing Frequency for Stable Operation of Anaerobic Ceramic Membrane Bioreactor.PROCESSES,8(5),1-8. |
| MLA | Nilusha, Rathmalgodage Thejani,et al."Optimization of In Situ Backwashing Frequency for Stable Operation of Anaerobic Ceramic Membrane Bioreactor".PROCESSES 8.5(2020):1-8. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。