title: Effects of low-concentration Cr(VI) on the performance and the membrane fouling of a submerged membrane bioreactor in the treatment of municipal wastewater.
abstract: The effects of low-concentration Cr(VI) (0.4 mg l(-1)) on the performance of a submerged membrane bioreactor (SMBR) in the treatment of municipal wastewater, as well as membrane fouling were investigated. Compared with the SMBR for control municipal wastewater, the SMBR for Cr(VI)-containing municipal wastewater had a higher concentration of soluble microbial products (SMP) with lower molecular weights, and smaller sludge particle sizes. Furthermore, low-concentration Cr(VI) induced membrane fouling, especially irreversible membrane pore blocking, which markedly shortened the service life of the membrane.
authors.affiliation: a State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering , Tongji University , Shanghai , China ;
authors.forename: Lijie
authors.initials: L
authors.lastname: Zhou
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Jiang
authors.forename: Wenshan
authors.initials: W
authors.lastname: Guo
authors.forename: Huu-Hao
authors.initials: HH
authors.lastname: Ngo
authors.forename: Xiangzhou
authors.initials: X
authors.lastname: Meng
authors.forename: Jinhong
authors.initials: J
authors.lastname: Fan
authors.forename: Jianfu
authors.initials: J
authors.lastname: Zhao
authors.forename: Siqing
authors.initials: S
authors.lastname: Xia
mesh_terms: D000890:Anti-Infective Agents / Q000494:pharmacology*; D057219:Biofouling / Q000517:prevention & control*; D019149:Bioreactors; D002857:Chromium / Q000494:pharmacology*; D008567:Membranes, Artificial; D010316:Particle Size; D017550:Spectroscopy, Fourier Transform Infrared; D062065:Wastewater / Q000382:microbiology*
chemical_list: D000890:Anti-Infective Agents; D002857:Chromium; D008567:Membranes, Artificial; D062065:Wastewater; C074702:chromium hexavalent ion