title: Comparison of axial vibration membrane and submerged aeration membrane in microalgae harvesting.
abstract: The submerged aeration membrane (SAM) system and axial vibration membrane (AVM) system can mitigate membrane fouling. In this study, both systems were investigated to compare the performance of filtration and the membrane fouling in algae filtration. In 5-h filtration, the transmembrane pressure (TMP) of SAM reached to 70.0 kPa, while there was almost no increase in TMP for AVM. After continuous filtration, it could be found that there was hardly any algae cells on the membrane of AVM (0.11 g/m(2)), which was about 32.4 times less than that of SAM (3.56 g/m(2)). Compared with the SAM system, AVM had a lesser membrane fouling, regardless of the reversible fouling or irreversible fouling. By SEM, FTIR and EEM, it could be found there was less irreversible extracellular organic matter (EOM) on the membrane of AVM. By MW distribution, it could be observed that less EOM with high-MW adhered to membrane of AVM.
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Fangchao
authors.initials: F
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Huaqiang
authors.initials: H
authors.lastname: Chu
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Tan
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China. Electronic address: zhangyalei@tongji.edu.cn.
authors.forename: Yalei
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Libin
authors.initials: L
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Xuefei
authors.initials: X
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Jianfu
authors.initials: J
authors.lastname: Zhao
mesh_terms: D001709:Biotechnology / Q000295:instrumentation* / Q000379:methods; D002708:Chlorella; D004867:Equipment Design; D005374:Filtration / Q000295:instrumentation; D008567:Membranes, Artificial; D058086:Microalgae / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D008970:Molecular Weight; D011312:Pressure; D017550:Spectroscopy, Fourier Transform Infrared; D014732:Vibration
chemical_list: D008567:Membranes, Artificial
keywords: Algae harvesting; Axial vibration membrane; Extracellular organic matter; Membrane fouling; Submerged aeration membrane