e-journal

Effect of aggregate structure on VOC gas adsorption onto volcanic ash soil

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Abstract.
The understanding of the gaseous adsorption process and the parameters of volatile organic compounds
such as organic solvents or fuels onto soils is very important in the analysis of the transport or fate of
these chemicals in soils. Batch adsorption experiments with six different treatments were conducted to
determine the adsorption of isohexane, a gaseous aliphatic, onto volcanic ash soil (Tachikawa loam). The
measured gas adsorption coefficient forsamples of Tachikawa loam used in the first three treatments, Control,
AD (aggregate destroyed), and AD-OMR (aggregate destroyed and organic matter removed), implied
that the aggregate structure of volcanic ash soil aswell as organic matter strongly enhanced gas adsorption
under the dry condition, whereas under the wet condition, the aggregate structure played an important
role in gas adsorption regardless of the insolubility of isohexane. In the gas adsorption experiments for
the last three treatments, soilswere sieved in different sizes of mesh andwere separated into three different
aggregate or particle size fractions (2.0–1.0mm, 1.0–0.5mm, and less than 0.5 mm). Tachikawa loam
with a larger size fraction showed higher gas adsorption coefficient, suggesting the higher contributions
of macroaggregates to isohexane gas adsorption under dry and wet conditions.

Keywords:
Volatile organic compound
Adsorption
Gas
Aggregated soil
Organic matter

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Hazardous Materials

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Journal of Hazardous Materials 166 (2009) 207–212

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

LINGKUNGAN HIDUP

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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