title: Erratum to: Removal mechanism of low-concentration Cr (VI) in a submerged membrane bioreactor activated sludge system.
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
authors.forename: Siqing
authors.initials: S
authors.lastname: Xia
authors.forename: Lijie
authors.initials: L
authors.lastname: Zhou
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Zhang
authors.forename: Slawomir W
authors.initials: SW
authors.lastname: Hermanowicz