Dye effluent treatment using PVDF UF membranes with different properties

Dye effluent treatment using PVDF UF membranes with different properties
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使用不同性能的PVDF超滤膜处理染料废水

DOI:
10.1080/19443994.2013.862033
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发表时间:
2014-08
影响因子:
1.1
通讯作者:
Miao Rui
Miao Rui
中科院分区:
工程技术4区
文献类型:
--
作者:
Wang Xudong;Wang Lei;Huang Danxi;Miao Rui

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AbstractUsing DMAc as solvent, water as non-solvent, modified poly(vinylidene fluoride) (PVDF) ultrafiltration membranes (PSi, PA, PS) were prepared by precipitation phase inversion, blending with nano-silica (SiO2), polyvinyl alcohol (PVA), and styrene maleic anhydride. The physical-chemical properties and morphology of PVDF membranes were characterized by FT-IR, water contact angle (WCA), swelling index, scanning electron microscopy, atomic force microscopy, etc. Considering reactive black 5 and congo red as the representatives of dye effluent pollutions, the filtration behavior to dye wastewater of four different types of PVDF UF membranes was discussed. Experimental results showed that, compared with original PVDF UF membrane, for three kinds of modified membrane, the first bubble pressure and strength (S) fell off to a certain extent, and the membrane surface roughness increased. Additionally, the cross-sectional macroporous and pure water flux (J) all increased. Especially, owing to the addition of ...
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