[Effect of PVDF Hollow Fiber Ultrafiltration Membranes Modification with Carbonnanotube on Membrane Fouling Control During Ultrafiltration of Sewage Effluent]

Li-Ying Wang; Jie Shi; Kai-Lun Wang; Yu-Qi Guan; Jin Guo

doi:10.13227/j.hjkx.201603008

[Effect of PVDF Hollow Fiber Ultrafiltration Membranes Modification with Carbonnanotube on Membrane Fouling Control During Ultrafiltration of Sewage Effluent]

Huan Jing Ke Xue. 2017 Jan 8;38(1):220-228. doi: 10.13227/j.hjkx.201603008.

[Article in Chinese]

Authors

Li-Ying Wang¹, Jie Shi¹, Kai-Lun Wang¹, Yu-Qi Guan¹, Jin Guo¹

Affiliation

¹ School of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.

PMID: 29965050
DOI: 10.13227/j.hjkx.201603008

Abstract

The modification of hollow fiber ultrafiltration membranes with carbon nanotube (CNTs) on fouling control was investigated.Considering the antifouling ability of the CNT-modified membranes and the stability of CNTs layer,several factors were analyzed and evaluated,including the concentration of ethanol-dispersion,the diameter of CNTs,and the loading mass of CNTs.Besides,DOC,UV₂₅₄,and fluorescence characteristics of the permeate from the CNT-modified membrane were analyzed.The results revealed that the optimal modification method included a 50%(volume fraction) ethanol-dispersion,a 30-50 nm diameter-CNTs,and 3 g·m^-2 CNTs' loading.Compared with the virgin membrane,the removal rates of DOC and UV₂₅₄ by the CNT-modified membrane were increased by 37% and 56%,respectively.Meanwhile,it was proved that the humic-like and protein-like materials were more easily removed by the CNT-modified membrane.

Keywords: carbon nanotube; membrane fouling; membrane modification; sewage effluent; ultrafiltration membrane.

Publication types

English Abstract