Sorption of HOC in soils with carbonaceous contamination: Influence of organic-matter composition
14 pages, 6 figures, 5 tables, 63 references.
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| Main Authors: | , , , , |
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| Format: | artículo biblioteca |
| Language: | English |
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Wiley-VCH
2005-06
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| Subjects: | Solid-state 13C NMR spectroscopy, Technogenic soil material, Coal, Sorption, |
| Online Access: | http://hdl.handle.net/10261/82452 |
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dig-irnas-es-10261-824522018-09-12T12:00:58Z Sorption of HOC in soils with carbonaceous contamination: Influence of organic-matter composition Abelmann, Kerstin Kleineidam, Sybille Knicker, Heike Grathwohl, P. Kögel-Knabner, I. Solid-state 13C NMR spectroscopy Technogenic soil material Coal Sorption 14 pages, 6 figures, 5 tables, 63 references. Detailed information about structure and composition of organic sorbents is required to understand their impact on sorption capacity and sorption kinetic of organic pollutants. Therefore, the chemical composition of organic material from 18 geosorbents was investigated by solid-state 13C nuclear-magnetic-resonance (NMR) spectroscopy. Structural parameters such as aromaticity, polarity, and alkyl-C content were related to the Freundlich sorption exponent (1/n) and the sorption coefficient equation image. The geosorbents included three natural and four combusted coals (carbonaceous material), three Histosols, five mineral soils from Germany containing inputs of technogenic carbonaceous material, derived from industrial activities, and four non-contaminated mineral soils from Germany. Equilibrium sorption was measured for five hydrophobic organic compounds and analyzed with the solubility-normalized Freundlich sorption isotherm. With increasing maturation degree, the proportion of polar constituents decreases from the natural soils to the coals. In contrast to the non-polluted mineral soils, the soils with technogenic input are characterized by high aromaticity and low polarity. A positive correlation between sorption coefficient equation image and aromaticity was found. The Freundlich exponent (1/n) is negatively correlated with the aromaticity, denoting an increase of adsorption processes with increasing aromaticity. Likewise, the contribution of partitioning decreases. This sorption mechanism predominates only if the organic matter in the samples contains a high proportion of polar compounds. Peer reviewed 2013-09-20T09:56:06Z 2013-09-20T09:56:06Z 2005-06 artículo http://purl.org/coar/resource_type/c_6501 Journal of Plant Nutrition and Soil Science 168 (3): 293-306 (2005) 1436-8730 http://hdl.handle.net/10261/82452 10.1002/jpln.200421622 1522-2624 en http://dx.doi.org/10.1002/jpln.200421622 none Wiley-VCH |
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English |
| topic |
Solid-state 13C NMR spectroscopy Technogenic soil material Coal Sorption Solid-state 13C NMR spectroscopy Technogenic soil material Coal Sorption |
| spellingShingle |
Solid-state 13C NMR spectroscopy Technogenic soil material Coal Sorption Solid-state 13C NMR spectroscopy Technogenic soil material Coal Sorption Abelmann, Kerstin Kleineidam, Sybille Knicker, Heike Grathwohl, P. Kögel-Knabner, I. Sorption of HOC in soils with carbonaceous contamination: Influence of organic-matter composition |
| description |
14 pages, 6 figures, 5 tables, 63 references. |
| format |
artículo |
| topic_facet |
Solid-state 13C NMR spectroscopy Technogenic soil material Coal Sorption |
| author |
Abelmann, Kerstin Kleineidam, Sybille Knicker, Heike Grathwohl, P. Kögel-Knabner, I. |
| author_facet |
Abelmann, Kerstin Kleineidam, Sybille Knicker, Heike Grathwohl, P. Kögel-Knabner, I. |
| author_sort |
Abelmann, Kerstin |
| title |
Sorption of HOC in soils with carbonaceous contamination: Influence of organic-matter composition |
| title_short |
Sorption of HOC in soils with carbonaceous contamination: Influence of organic-matter composition |
| title_full |
Sorption of HOC in soils with carbonaceous contamination: Influence of organic-matter composition |
| title_fullStr |
Sorption of HOC in soils with carbonaceous contamination: Influence of organic-matter composition |
| title_full_unstemmed |
Sorption of HOC in soils with carbonaceous contamination: Influence of organic-matter composition |
| title_sort |
sorption of hoc in soils with carbonaceous contamination: influence of organic-matter composition |
| publisher |
Wiley-VCH |
| publishDate |
2005-06 |
| url |
http://hdl.handle.net/10261/82452 |
| work_keys_str_mv |
AT abelmannkerstin sorptionofhocinsoilswithcarbonaceouscontaminationinfluenceoforganicmattercomposition AT kleineidamsybille sorptionofhocinsoilswithcarbonaceouscontaminationinfluenceoforganicmattercomposition AT knickerheike sorptionofhocinsoilswithcarbonaceouscontaminationinfluenceoforganicmattercomposition AT grathwohlp sorptionofhocinsoilswithcarbonaceouscontaminationinfluenceoforganicmattercomposition AT kogelknabneri sorptionofhocinsoilswithcarbonaceouscontaminationinfluenceoforganicmattercomposition |
| _version_ |
1777664659380240384 |