کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
691939 | 1460462 | 2009 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Experimental study on the rejection of salt and dye with cellulose acetate nanofiltration membrane Experimental study on the rejection of salt and dye with cellulose acetate nanofiltration membrane](/preview/png/691939.png)
In this study, the rejections of dye, salt, and dye intermediate by a cellulose acetate (CA) nanofiltration membrane were investigated. The rejections of sodium chloride and sodium sulfate were moderate and declined with the increase of concentration. The rejection of five reactive dyes by a CA nanofiltration membrane was higher than 99.0% at low concentration, and high rejection of five reactive dyes was still achievable at higher dye concentration. However, the rejections of five dye intermediates varied from low to moderate when the molecular weight increased. In the C.I. Reactive Black 5 diafiltration and concentration process, the concentration and constant volume diafiltration mode had a better desalting degree than the constant volume diafiltration and concentration mode. However, the constant volume diafiltration and concentration mode is necessary for C.I. Reactive Blue 13 solution due to its low solubility. This study illustrates that nanofiltration is a promising process for dye desalting and concentrating.
Journal: Journal of the Taiwan Institute of Chemical Engineers - Volume 40, Issue 3, May 2009, Pages 289–295