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Retention of 2,4,6-trinitrotoluene and heavy metals from industrial waste water by using the low cost adsorbent pine bark in a batch experiment
Örebro University, School of Science and Technology.ORCID iD: 0000-0002-2104-4593
2011 (English)In: Water Science and Technology, ISSN 0273-1223, E-ISSN 1996-9732, Vol. 64, no 10, p. 2052-2058Article in journal (Refereed) Published
Abstract [en]

Pine bark is a low cost sorbent originating from the forest industry. In recent years, it has been found to show promise as an adsorbent for metals and organic substances in contaminated water, especially landfill leachates and storm water. This study aims to investigate if pine bark can replace commercial adsorbents such as active carbon. An industrial effluent, collected from a treatment plant of a demilitarization factory, was diluted to form concentration ranges of contaminants and shaken with pine bark for 24 hours. Metals (e.g. Pb, Zn, Cd, As and Ni) and explosives, e. g., 2,4,6-trinitrotoluene (TNT), were analysed before and after treatment. The aim of the experiment was twofold; firstly, it was to investigate whether metals are efficiently removed in the presence of explosives and secondly, if adsorption of explosive substances to pine bark was possible. Langmuir and Freundlich isotherms were used to describe the adsorption process where this was possible. It was found that metal uptake was possible in the presence of TNT and other explosive contaminants. The uptake of TNT was satisfactory with up to 80% of the TNT adsorbed by pine bark.

Place, publisher, year, edition, pages
IWA Publishing, 2011. Vol. 64, no 10, p. 2052-2058
Keywords [en]
adsorption, heavy metals, pine bark, TNT
National Category
Chemical Sciences
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-22322DOI: 10.2166/wst.2011.603ISI: 000298053600015OAI: oai:DiVA.org:oru-22322DiVA, id: diva2:513379
Available from: 2012-04-02 Created: 2012-04-02 Last updated: 2017-12-07Bibliographically approved

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Allard, Bert

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf