Comparison study of ammonia and COD adsorption on zeolite, activated carbon and composite materials in landfill leachate treatment

Azhar Abdul Halim, Hamidi Abdul Aziz, Megat Azmi Megat Johari, Kamar Shah Ariffin

Research output: Contribution to journalArticle

138 Citations (Scopus)

Abstract

Chemical oxygen demand (COD) and ammoniacal nitrogen have always been the crucially problematic parameters in landfill leachate treatment. This study was conducted to investigate the adsorption properties of ammoniacal nitrogen and COD in semi-aerobic leachate from the Pulau Burung landfill site on zeolite, activated carbon and a new composite media in terms of adsorption isotherm and kinetic. The results show that all adsorbents fitted well with both Langmuir and Freundlich isotherms (R2N0.9) for ammonia adsorption. A comparison study indicated that the adsorption capacity of composite adsorbent towards ammoniacal nitrogen was higher than zeolite and activated carbon and comparable to activated carbon for COD. Findings from a kinetic study indicated that the adsorption of ammonia on new composite adsorbent and zeolite follow almost all kinetic models such as pseudo-first-order, pseudo-second-order, Elovich and intra-particle diffusion model, although pseudo-second-order was the most dominant. COD adsorption fitted well with the pseudo-second-order kinetic model, while activated carbon obeys the pseudo-first-order and intra-particle models.

Original languageEnglish
Pages (from-to)31-35
Number of pages5
JournalDesalination
Volume262
Issue number1-3
DOIs
Publication statusPublished - 15 Nov 2010

Fingerprint

Chemical Water Pollutants
Leachate treatment
Zeolites
Chemical oxygen demand
Land fill
Ammonia
zeolite
chemical oxygen demand
Activated carbon
activated carbon
ammonia
adsorption
Adsorption
Adsorbents
Composite materials
Kinetics
Nitrogen
kinetics
nitrogen
isotherm

Keywords

  • Activated carbon
  • Ammonia
  • COD
  • Composite adsorbent
  • Leachate
  • Zeolite

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Chemistry(all)
  • Materials Science(all)
  • Water Science and Technology

Cite this

Comparison study of ammonia and COD adsorption on zeolite, activated carbon and composite materials in landfill leachate treatment. / Abdul Halim, Azhar; Aziz, Hamidi Abdul; Johari, Megat Azmi Megat; Ariffin, Kamar Shah.

In: Desalination, Vol. 262, No. 1-3, 15.11.2010, p. 31-35.

Research output: Contribution to journalArticle

Abdul Halim, Azhar ; Aziz, Hamidi Abdul ; Johari, Megat Azmi Megat ; Ariffin, Kamar Shah. / Comparison study of ammonia and COD adsorption on zeolite, activated carbon and composite materials in landfill leachate treatment. In: Desalination. 2010 ; Vol. 262, No. 1-3. pp. 31-35.
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