Adsorption of some organic compounds by hexadecyltrimethylammonium-bentonite

Celik A., Yildiz N., Calimli A.

REVIEWS IN CHEMICAL ENGINEERING, vol.16, no.3, pp.301-309, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Review
  • Volume: 16 Issue: 3
  • Publication Date: 2000
  • Doi Number: 10.1515/revce.2000.16.3.301
  • Journal Name: REVIEWS IN CHEMICAL ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.301-309
  • Keywords: organobentonite, adsorption, organic pollutants, TETRACHLOROMETHANE SORPTION, WATER, CLAY
  • Ankara University Affiliated: Yes

Abstract

In this study, the removal of organic contaminants from wastewater has been studied by using hexadecyltrimethylammonium bentonite (HDTMA-bentonite). HDTMA-bentonite was synthesized by placing quaternary ammonium surfactant (hexadecyltrimethylammonium bromide) on the sodium bentonite (Na-B) by cation exchange. The sorption of organic pollutants was examined by batch equilibration method at 25 degrees C. As organic contaminants polar compounds (methylene blue, benzoic acid and salicylic acid) and nonpolar compounds (toluene and xylene) were used. The concentrations of the organic pollutants used ranged from 0 to 700 mg/L. Methylene blue, benzoic acid and salicylic acid sorptions to HDTMA-bentonite were characterized by relatively strong solute uptake. Toluene and xylene sorptions to HDTMA-bentonite were weaker.