| 张贤芳,凌琪,伍昌年,赵秋燕,方涛,鲍超.DMBR中投加壳聚糖延缓膜污染效果的实验研究[J].安徽建筑大学学报,0,(): |
| DMBR中投加壳聚糖延缓膜污染效果的实验研究 |
| Experimental study on the Effects of Adding Chitosan to DMBR to Delay Membrane Fouling |
| 投稿时间：2015-04-14 修订日期：2015-09-07 |
| DOI： |
| 中文关键词: 动态膜生物反应器 壳聚糖 膜污染 |
| 英文关键词: dynamic membrane bioreactor chitosan membrane fouling |
| 基金项目:国家水体污染控制与治理科技重大专项课题(2014ZX07405003) |
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| 中文摘要: |
| 采用两套平行动态膜生物反应器(DMBR)研究投加壳聚糖对DMBR中污泥混合液特性的影响,并探讨其机理。结果表明,投加壳聚糖对反应器中COD、TN、NH3-N、TP去除率分别增加4.48%、6.01%、8.64%、13.8%,且膜通量衰减速度、混合液中EPS含量增加趋势、Zeta电位降低程度、小于10μm的粒径所占的比例均小于对照反应器。壳聚糖对控制膜污染有积极作用。 |
| 英文摘要: |
| Two paralleled DMBRs were used to study the effects on the sludge mixture properties in the DMBR by adding chitosan to them, and their working processes were observed. The results showed after adding chitosan to DMBR, pollutants removal rates of COD, TN, NH3-N and TP increased by 4.48%、6.01%、8.64%、13.8% respectively, and those of the attenuation of membrane flux, the increasing trend of EPS, the reduction of Zeta electric potential, and the proportion of particles less than 10 microns were all less than the controlled reactor. Therefore, it could be concluded chitosan has positive effects on controlling membrane fouling. |
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