Removal of phenol from petroleum refinery wastewater through adsorption on date-pit activated carbon

Muftah H. El-Naas, Sulaiman Al-Zuhair, Manal Abu Alhaija

Research output: Contribution to journalArticlepeer-review

222 Citations (Scopus)

Abstract

Experiments were carried out to evaluate the batch adsorption of phenol from petroleum refinery wastewater on a locally prepared date-pit activated carbon (DP-AC). Adsorption equilibrium and kinetics data were determined for the uptake of phenol from real refinery wastewater and from synthetically prepared aqueous phenol solution. The data were fitted to several adsorption isotherm and kinetics models. Sips as well as Langmuir models gave the best fit for equilibrium isotherms, whereas the kinetics data were best fitted by the pseudo-second order model. The enthalpy of adsorption showed an exothermic nature of the adsorption process. Several chemical and thermal techniques were tested for the regeneration of saturated activated carbon; using ethanol was found to be the most effective with more than 86% regeneration efficiency after four regeneration cycles.

Original languageEnglish
Pages (from-to)997-1005
Number of pages9
JournalChemical Engineering Journal
Volume162
Issue number3
DOIs
Publication statusPublished - Sep 2010

Keywords

  • Adsorption
  • Date-pit
  • Petroleum refinery wastewater
  • Phenol
  • Regeneration

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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