| 李祖成,凌琪,伍昌年,李晶,张贤芳,宋箭,陶勇.倒置A2/O-动态膜生物反应器工艺中EPS分布及对膜污染的影响[J].安徽建筑大学学报,2014,22(4):88-91 |
| 倒置A2/O-动态膜生物反应器工艺中EPS分布及对膜污染的影响 |
| Distribution of EPS and its Effect on Membrane Fouling in reverse A2O- Dynamic Membrane Bioreactor Process |
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| DOI：10.11921/j.issn.2095-8382.20140419 |
| 中文关键词: 倒置A2/O 动态膜生物反应器 EPS 膜污染. |
| 英文关键词: reverse A2/O dynamic membrane bioreactor EPS membrane fouling |
| 基金项目:安徽省政府与科技部年度会商项目专项（11070403050） |
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| 中文摘要: |
| 采用倒置A2/O-动态膜生物反应器工艺处理市政污水，考察运行过程中沿程胞外聚合物分布状况和特性及EPS对膜污染的影响。结果表明：连续运行30d，工艺沿程中EPS含量均随运行时间延长而增大，其中好氧池EPS浓度为2.7~10.9mg/g MLVSS，蛋白质和LB-EPS含量分别为0.87～5.73mg/L，0.49～8.6mg/L，膜通量从71.1L/m2•h减小到16.1L/m2•h，膜污染增加,清洗的频次也增大。 |
| 英文摘要: |
| Municipal wastewater was treated by using reverse A2O-dynamic membrane bioreactor (DMBR) process. The distribution and characteristics of extracellular polymeric substances (EPS) as well as its effect on membrane fouling were investigated in reverse A2O-DMBR process. The results showed that the content of EPS along the process increased in the continuous running for 30 days. Content for EPS in aerobic pond increased from 2.7 mg/g MLVSS to 10.9mg/g MLVSS. The concentration of protein and LB-EPS in aerobic increased from 0.87mg/L to 5.73mg/L, from 0.49mg/L to 8.6mg/L, respectively. Membrane water flux decreased from 71.1L/m2•h to 16.1L/m2•h. Membrane fouling degree and membrane cleaning frequence increased. |
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