悬浮填料对MBR中胞外聚合物的影响
Effect of Suspended Carriers on Extracellular Polymeric Substances in MBR
DOI: 10.12677/AEP.2013.31B004, PDF, HTML,    科研立项经费支持
作者: 仉春华*, 袁传军, 孙红杰：大连民族学院环境科学与工程系，大连，中国，116600
关键词: 悬浮填料；曝气量；EPS；Suspended Carrier; Aeration Rate; EPS
摘要: 以聚丙烯无纺布为膜组件，向浸渍式膜生物反应器中投加悬浮填料处理人工废水。考察不同曝气量下MBR中污泥混合液以及膜组件表面污泥EPSS、EPSB和EPS的变化。结果表明，MBR中添加悬浮填料能增加污泥混合液中EPSS和EPSB的浓度，而对膜组件表面污泥中EPSS和EPSB影响，与曝气强度有关。在曝气量为0.10 m3/h时，添加悬浮填料能增加污泥中的EPSS和EPSB的浓度，当曝气量增大到0.25 m3/h时，添加悬浮填料的污泥中的EPSS和EPSB的浓度有所降低。曝气量对MBR污泥混合液及膜组件表面污泥EPS影响的研究结果表明，采用添加悬浮填料控制MBR膜污染时存在一个优化的曝气量，在此曝气量下，能实现有效地延缓和控制膜污染。
Abstract: Suspended carriers were added into a submerged membrane bioreactor (SMBR) using polypropylene non- woven fabric (PP NWF) as membrane model to treat synthetic wastewater. The changes of EPSS, EPSB and EPS in activated sludge mixing liquid of MBR and in sludge on membrane model surface were researched at different aeration rate. The results showed that adding suspended carriers in MBR can increase the concentration of EPSS and EPSB in activated sludge mixing liquid, but the effect on EPSS and EPSB in the sludge on membrane model surface is related to aeration rate. Adding suspended carriers can increase the concentration of EPSS and EPSB in the sludge on membrane model surface at 0.10 m3/h of aeration rate; the concentration of EPSS and EPSB in the sludge with suspended carriers is reduced when aeration rate is increased to 0.25 m3/h. The study on the effect of aeration rate on EPS in sludge mixing liquid of MBR and in sludge on membrane model surface showed that an optimized aeration rate exists if suspended carriers are added to control MBR membrane fouling. At the optimized aeration rate, membrane fouling can be mitigated and controled effectively.
文章引用：仉春华, 袁传军, 孙红杰. 悬浮填料对MBR中胞外聚合物的影响[J]. 环境保护前沿, 2013, 3(1): 13-16. http://dx.doi.org/10.12677/AEP.2013.31B004

参考文献

[1] J. L. Wu, X. Huang. Effect of dosing polymeric ferric sulfate on fouling characteristics, mixed liquor properties and performance in a long-term running membrane bioreactor. Separation and Purification Technology, 2008, 63(1): 45-52.
[2] L. Defrance, M. Y. Jaffrin, B. Gupta, et al. Contribution of various constituents of activated sludge to membrane bioreactor fouling. Bioresource Technology, 2000, 73(2): 105-112.
[3] W. Lee, S. Kang, H. Shin. Sludge characteristics and their contribution to microfiltration in submerged membrane bioreactors. Journal of Membrane Science, 2003, 216 (1-2): 217-227.
[4] S. P. Hong, T. H. Bae, T. M. Tka, et al. Fouling control in activated sludge submerged hollow fiber membrane bioreactors. Desalination, 2002, 143(3): 219-228.
[5] H. C. Chua, T. C. Arnot, J. A. Howell. Controlling fouling in membrane bioreactors operated with a variable throughput. Desalination, 2002, 149(1-3): 225-229.
[6] Y. SAKAI, T. KOMATSU, S. HIMENO, et al, Influence of cayyier addition and aeration strength in MBR by a long-term raw sewage treatment. Proceedings of Japan Society of Civil Engineers, 2008, 64(2): 160-167(Jp). 酒井阳介,小松俊哉,姬野修司，等. MBRによる実下水の長期連続処理における担体投入および曝気強度の影響[G]. 土木学会論文集, 2008, 64(2): 160-167.
[7] 仉春华, 胡冰, 安晓雯. 多孔悬浮填料对SMBR性能的影响[J]. 大连民族学院学报, 2011, 12(1): 6-8.
[8] V. Urbain, J. C. Block, J. Manem. Bioflocculation in activated sludge: an analytical approach. Water Research, 1993, 27(5): 829- 838.
[9] W. Lee, S. Lang, H. Shin. Sludge characteristics and their contribution to microfiltration in submerged membrane bioreacters. Journal of Membrane Science, 2003, 216(1-2): 217-227.
[10] S. Rosenberger, M. Kraume. Filterability of act ivated sludge in membrane bioreactors, Desalination, 2003, 151(2): 195-200.
[11] B. Frolund, R. Palmgren, K. Keiding, et al. Extraction of extracellular polymeric substance from activated sludge using a cation exchange resin, Water Research, 1996, 30(8):1749-1758.
[12] 余瑞元, 袁明秀, 陈丽蓉，等. 生物化学实验原理与方法[M] . 北京: 北京大学出版社, 2005.
[13] 李绍峰, 崔崇威, 黄君礼. 胞外聚合物EPS对MBR膜污染的影响[J]. 哈尔滨工业大学报, 2007, 39(2): 266-269.
[14] 李延军, 李秀芬, 华兆哲，等. 好氧颗粒污泥胞外聚合物的产生及其分布[ J ] . 环境化学, 2006, 25( 4): 439- 443.
[15] H. Nagaoka, S. Ueda, A. Miya. Influence of bacterial extracellular polymers on the membrane separation activated sludge process. Water Science and Technology, 1996, 34(9): 165-172.