Decomposition of EPS on the membrane surface and its influence on the fouling mechanism in MBRs

作者: H. Nagaoka , H. Akoh

DOI: 10.1016/J.DESAL.2007.12.007

关键词:

摘要: Abstract This study is aimed at elucidating the mechanism of change molecular weight distribution EPS by bacterial activities after being attached on membrane surface and influence fouling in a laboratory-scale MBR reactor. Change amount accumulation was measured under non-substrate-fed condition. High (more than 1,000 kDa) accumulated found to be decomposed smaller molecular-weight finally mineralised decreasing filtration resistance membrane. natural recovery from explained mathematical model considering production decomposition high- lowmolecular surface.

参考文章(5)
H. Evenblij, J.H.J.M. van der Graaf, Occurrence of EPS in activated sludge from a membrane bioreactor treating municipal wastewater. Water Science and Technology. ,vol. 50, pp. 293- 300 ,(2004) , 10.2166/WST.2004.0726
Bo Frølund, Rikke Palmgren, Kristian Keiding, Per Halkjær Nielsen, Extraction of extracellular polymers from activated sludge using a cation exchange resin Water Research. ,vol. 30, pp. 1749- 1758 ,(1996) , 10.1016/0043-1354(95)00323-1
S Judd, None, A review of fouling of membrane bioreactors in sewage treatment. Water Science and Technology. ,vol. 49, pp. 229- 235 ,(2004) , 10.2166/WST.2004.0131