Leaching of VOCs from cement-based stabilized/solidified refinery oily sludge using solid phase microextraction

Athanasios Karamalidis, E. A. Voudrias

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Cement-based Stabilization/Solidification was applied to refinery oily sludge. Zero Headspace Extraction was employed for the investigation of the leaching behavior of volatile organic compounds from untreated and stabilized/solidified oily sludge in water. A method is described combining zero headspace extraction, solid phase microextraction and gas chromatography with flame ionization detector for determination of volatile organic compounds in aqueous leachates. For stabilization/ solidification of the waste, two types of cement were used, I42.5 and II42.5. The I42.5 is a Portland Cement whereas the II42.5 is a Blended Cement, which contains pozzolanic material. In general, the I42.5 cement showed better immobilizing characteristics than the II42.5 cement, but the difference was small. The leaching behavior of toluene, o-xylene, p,m-xylene and ethylbenzene from stabilized/solidified samples was similar for both types of cement. The reduction in the maximum leached amount of stabilized/solidified specimens compared with that of the untreated oily sludge alone, varied from 80% to 98%, for specimens with 10% cement addition (both types). Increased leaching was observed with increasing cement addition. In the case of naphthalene, stabilized/ solidified samples leached more than threefold the amount leached from the untreated oily sludge alone.

Original languageEnglish (US)
Pages (from-to)1173-1185
Number of pages13
JournalEnvironmental Technology
Volume28
Issue number10
DOIs
StatePublished - Oct 1 2007

Fingerprint

Volatile organic compounds
Leaching
volatile organic compound
Cements
cement
sludge
leaching
Volatile Organic Compounds
xylene
solidification
Solidification
Stabilization
stabilization
refinery
Toluene
Portland cement
Gas chromatography
naphthalene
Ionization
toluene

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal

Cite this

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title = "Leaching of VOCs from cement-based stabilized/solidified refinery oily sludge using solid phase microextraction",
abstract = "Cement-based Stabilization/Solidification was applied to refinery oily sludge. Zero Headspace Extraction was employed for the investigation of the leaching behavior of volatile organic compounds from untreated and stabilized/solidified oily sludge in water. A method is described combining zero headspace extraction, solid phase microextraction and gas chromatography with flame ionization detector for determination of volatile organic compounds in aqueous leachates. For stabilization/ solidification of the waste, two types of cement were used, I42.5 and II42.5. The I42.5 is a Portland Cement whereas the II42.5 is a Blended Cement, which contains pozzolanic material. In general, the I42.5 cement showed better immobilizing characteristics than the II42.5 cement, but the difference was small. The leaching behavior of toluene, o-xylene, p,m-xylene and ethylbenzene from stabilized/solidified samples was similar for both types of cement. The reduction in the maximum leached amount of stabilized/solidified specimens compared with that of the untreated oily sludge alone, varied from 80{\%} to 98{\%}, for specimens with 10{\%} cement addition (both types). Increased leaching was observed with increasing cement addition. In the case of naphthalene, stabilized/ solidified samples leached more than threefold the amount leached from the untreated oily sludge alone.",
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Leaching of VOCs from cement-based stabilized/solidified refinery oily sludge using solid phase microextraction. / Karamalidis, Athanasios; Voudrias, E. A.

In: Environmental Technology, Vol. 28, No. 10, 01.10.2007, p. 1173-1185.

Research output: Contribution to journalArticle

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