Desalination of dye utilizing copoly(phthalazinone biphenyl ether sulfone) ultrafiltration membrane with low molecular weight cut-off
Desalination of dye utilizing copoly(phthalazinone biphenyl ether sulfone) ultrafiltration membrane with low molecular weight cut-off
复制标题
低截留分子量共聚二氮杂萘联苯醚砜超滤膜脱盐染料
DOI：
10.1016/j.memsci.2010.03.036
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发表时间：
2010-08-15
影响因子：
9.5
通讯作者：
Jian, Xigao
中科院分区：
文献类型：
--
作者：
Han, Runlin;Zhang, Shouhai;Jian, Xigao
低截留分子量共聚二氮杂萘酮联苯醚砜（PPBES）超滤膜具有良好的耐热性，适合于高温下处理染料废水。在20 ℃、0.2MPa条件下，膜对聚乙二醇（PEG 1000）的截留率为100%，通量为232 L/m2·h。实验结果表明，该方法对NaCl和Na_2SO_4的截留率均为0%。对直接染料刚果红、硫化染料B和阴离子染料甘兰紫的拒染率均为100%，对C. I.活性黄86（活性染料）、C. I.分散红73（分散染料）和酸性Chrome蓝K（阳离子染料）的脱色率分别为79%、54%和43%。在20 ℃、0.2MPa条件下，除C外，膜通量均大于87 L/m2·h。I. 73.第七十三章考察了无机盐浓度对膜性能的影响。还用硫化黑B评价了膜的耐热性。结果表明，当操作温度从20 ℃升高到95 ℃时，通量增加了4.5倍，而截留率没有下降。膜在90 ℃下运行20 h，膜性能无下降，表明膜具有良好的耐热性。(C)2010 Elsevier B. V.保留所有权利。
Copoly(phthalazinone biphenyl ether sulfone) (PPBES) ultrafiltration (UF) membrane with low molecular weight cut-off (MWCO) possesses excellent thermal resistance and it is suitable to be utilized in dye wastewater treatment at high temperature. The rejection of polyethylene glycol (PEG1000) of the membrane was 100% while the flux was 232 L/m(2) h at 20 degrees C and 0.2 MPa. It was showed that the rejections of NaCl and Na2SO4 were both 0%. The rejections of Congo Red (Direct Dye), Sulfur Black B (Sulfur Dye) and Gentian Violet (Anionic Dye) were all 100% while the rejections of C. I. Reactive Yellow 86 (Reactive Dye), C. I. Disperse Red 73 (Disperse Dye) and Acid Chrome Blue K (Cationic Dye) were 79%, 54% and 43%, respectively. The fluxes of the membrane during treatment were all higher than 87 L/m(2) h at 20 degrees C and 0.2 MPa except for C. I. Disperse Red 73. Effect of inorganic salt concentration on membrane performance was investigated. Thermal resistance of the membrane was also evaluated with Sulfur Black B. It was found that the flux increased 4.5 times while the rejection did not decline when the operation temperature was raised from 20 degrees C to 95 degrees C. The membrane ran 20 h at 90 degrees C without the membrane performance decline which showed that the membrane had good thermal resistance. (C) 2010 Elsevier B.V. All rights reserved.