Comparative study of different systems for adsorption and catalytic oxidation of hexamine in industrial wastewaters

Zamani N., Rajabi H. R., Taghdiri M., Fakhaei A. S., Vatanpour Sargheın V.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, vol.20, no.1, pp.37-45, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1016/j.jiec.2013.04.029
  • Journal Name: JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.37-45
  • Keywords: Hexamine-containing waste, Advanced oxidation process, Phosphotungstic acid, Direct synthetic method, Kinetic study, SELECTIVE AEROBIC OXIDATION, HYDROGEN-PEROXIDE, WASTE-WATER, ACTIVATED CARBON, FENTONS REAGENT, ACID, DEGRADATION, MCM-41, REMOVAL, POLYOXOMETALATE
  • Istanbul Technical University Affiliated: No

Abstract

This work reports adsorption and catalytic oxidation process for degradation of hexamine (HMT)-containing industrial wastewater based on the reduction in total organic carbon. The studied systems include hydrogen peroxide, MCM-41, phosphotungstic acid (PTA)/MCM-41 embedded via impregnation method, PTA/H2O2 and PTA/MCM-41 embedded via impregnation or direct synthesis methods in the presence of hydrogen peroxide. The TOC results indicated that the system including PTA embedded within MCM-41 via direct synthetic method in the presence of H2O2 has a higher performance for degradation of HMT-containing wastewater. The total organic carbon for the mineralization of HMT was obtained to be 57%, under optimum conditions. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.