当前位置: X-MOL 学术J. Water Process. Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Comparison of positively charged polymer species and cationic surfactants for methyl orange removal via polyelectrolyte and micellar enhanced ultrafiltration
Journal of Water Process Engineering ( IF 6.3 ) Pub Date : 2020-05-28 , DOI: 10.1016/j.jwpe.2020.101287
M. Schwarze , D. Seo , B. Bibouche , R. Schomäcker

Cationic charged polymer species were synthesized via emulsion polymerization and used as polyelectrolytes in polyelectrolyte enhanced ultrafiltration (PEUF) for the removal of the anionic dye methyl orange (MO). A cellulose membrane with a 30 kDa molecular weight cut-off (MWCO) was used for the separation process showing almost complete MO removal for a polymer concentration of 1 g L−1 and a dye concentration up to 50 mg L−1. Four cationic surfactants from the CTAB family (DeTAB, DTAB, TTAB, and CTAB) have been investigated in a comparable micellar enhanced ultrafiltration (MEUF) process. The MO removal efficiency was lower, and only TTAB and CTAB showed removal efficiencies above 90 %. The flux for the polymer species is slightly lower as for the surfactants, but the removal efficiency is higher, and carbon leaching into the purified stream is much lower.



中文翻译:

比较带正电的聚合物种类和阳离子表面活性剂通过聚电解质和胶束增强的超滤去除甲基橙的能力

通过乳液聚合合成阳离子带电聚合物,并将其用作聚电解质增强超滤(PEUF)中的聚电解质,用于去除阴离子染料甲基橙(MO)。截留分子量为30 kDa的纤维素膜(MWCO)用于分离过程,对于1 g L -1的聚合物浓度和最高50 mg L -1的染料浓度,几乎可以完全去除MO。在可比的胶束增强超滤(MEUF)工艺中,已经研究了四种CTAB系列阳离子表面活性剂(DeTAB,DTAB,TTAB和CTAB)。MO去除效率较低,只有TTAB和CTAB的去除效率高于90%。与表面活性剂相比,聚合物种类的通量略低,但去除效率较高,并且碳浸入纯化物流中的碳通量低得多。

更新日期:2020-05-28
down
wechat
bug