화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.4, 2059-2065, July, 2014
DOI10.1016/j.jiec.2013.09.031  Export Citation
Degradation of reactive dyes wastewater supplemented with cationic polymer (Organo Pol.) in a down flow hanging sponge (DHS) system
A. Tawfik†, D.F. Zaki1, and M.K. Zahran2
  • Environmental Engineering Department, Egypt-Japan University of Science and Technology (E-Just), P.O. Box 179, New Borg El Arab City, 21934 Alexandria, Egypt
  • 1Central Laboratory for Environmental Quality Monitoring, National Water Research Center, El-Kanater, Cairo, Egypt
  • 2Faculty of Science, Department of Chemistry, Helwan University, Ain-Helwan, P.O. Box 11795, Cairo, Egypt
E-mail:
Decolourization of reactive dyes wastewater supplemented with 1 mg/l cationic polymer (Organo Pol.) in a down flow hanging sponge (DHS) system was investigated at different HRTs and OLRs. The results obtained revealed that, increasing the HRT from 1.7 to 5 h, significantly increased the removal efficiencies of color and COD i.e. at a HRT of 5 h, and OLR not exceeding 2.8 g COD/l d, the reactor achieved removal efficiencies of 66.5 ± 7.07% for COD t and 90.12 ± 3.13% for color. However, at longer HRT of 6.0 h, the decolorization process was substantially dropped, due to high salinity content in the influent.
Keywords:Reactive dyes wastewater;Cationic polymer;DHS;HRT;Salinity
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