Affinity constants and behavior of Cd sorption in some acid soils

Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. T...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Kuo, S. [verfasserIn] Jellum, E. J.

Format:	Artikel
Sprache:	Englisch

Erschienen:	1991

Schlagwörter:	Cadmium Sorb Distribution Coefficient Acid Soil Fulvic Acid

Systematik:	ZC 7520 ZC 7520

Anmerkung:	© Kluwer Academic Publishers 1991

Übergeordnetes Werk:	Enthalten in: Water, air & soil pollution - Kluwer Academic Publishers, 1971, 57-58(1991), 1 vom: Aug., Seite 369-376
Übergeordnetes Werk:	volume:57-58 ; year:1991 ; number:1 ; month:08 ; pages:369-376

Links:	Volltext

DOI / URN:	10.1007/BF00282900

Katalog-ID:	OLC2084449340

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520			\|a Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces.
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allfields	10.1007/BF00282900 doi (DE-627)OLC2084449340 (DE-He213)BF00282900-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Kuo, S. verfasserin aut Affinity constants and behavior of Cd sorption in some acid soils 1991 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1991 Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces. Cadmium Sorb Distribution Coefficient Acid Soil Fulvic Acid Jellum, E. J. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 57-58(1991), 1 vom: Aug., Seite 369-376 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:57-58 year:1991 number:1 month:08 pages:369-376 https://doi.org/10.1007/BF00282900 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 57-58 1991 1 08 369-376
spelling	10.1007/BF00282900 doi (DE-627)OLC2084449340 (DE-He213)BF00282900-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Kuo, S. verfasserin aut Affinity constants and behavior of Cd sorption in some acid soils 1991 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1991 Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces. Cadmium Sorb Distribution Coefficient Acid Soil Fulvic Acid Jellum, E. J. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 57-58(1991), 1 vom: Aug., Seite 369-376 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:57-58 year:1991 number:1 month:08 pages:369-376 https://doi.org/10.1007/BF00282900 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 57-58 1991 1 08 369-376
allfields_unstemmed	10.1007/BF00282900 doi (DE-627)OLC2084449340 (DE-He213)BF00282900-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Kuo, S. verfasserin aut Affinity constants and behavior of Cd sorption in some acid soils 1991 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1991 Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces. Cadmium Sorb Distribution Coefficient Acid Soil Fulvic Acid Jellum, E. J. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 57-58(1991), 1 vom: Aug., Seite 369-376 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:57-58 year:1991 number:1 month:08 pages:369-376 https://doi.org/10.1007/BF00282900 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 57-58 1991 1 08 369-376
allfieldsGer	10.1007/BF00282900 doi (DE-627)OLC2084449340 (DE-He213)BF00282900-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Kuo, S. verfasserin aut Affinity constants and behavior of Cd sorption in some acid soils 1991 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1991 Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces. Cadmium Sorb Distribution Coefficient Acid Soil Fulvic Acid Jellum, E. J. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 57-58(1991), 1 vom: Aug., Seite 369-376 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:57-58 year:1991 number:1 month:08 pages:369-376 https://doi.org/10.1007/BF00282900 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 57-58 1991 1 08 369-376
allfieldsSound	10.1007/BF00282900 doi (DE-627)OLC2084449340 (DE-He213)BF00282900-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Kuo, S. verfasserin aut Affinity constants and behavior of Cd sorption in some acid soils 1991 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1991 Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces. Cadmium Sorb Distribution Coefficient Acid Soil Fulvic Acid Jellum, E. J. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 57-58(1991), 1 vom: Aug., Seite 369-376 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:57-58 year:1991 number:1 month:08 pages:369-376 https://doi.org/10.1007/BF00282900 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 57-58 1991 1 08 369-376
language	English
source	Enthalten in Water, air & soil pollution 57-58(1991), 1 vom: Aug., Seite 369-376 volume:57-58 year:1991 number:1 month:08 pages:369-376
sourceStr	Enthalten in Water, air & soil pollution 57-58(1991), 1 vom: Aug., Seite 369-376 volume:57-58 year:1991 number:1 month:08 pages:369-376
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Cadmium Sorb Distribution Coefficient Acid Soil Fulvic Acid
dewey-raw	570
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container_title	Water, air & soil pollution
authorswithroles_txt_mv	Kuo, S. @@aut@@ Jellum, E. J. @@aut@@
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author	Kuo, S.
spellingShingle	Kuo, S. ddc 570 ssgn 12 fid BIODIV rvk ZC 7520 misc Cadmium misc Sorb misc Distribution Coefficient misc Acid Soil misc Fulvic Acid Affinity constants and behavior of Cd sorption in some acid soils
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topic_title	570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk Affinity constants and behavior of Cd sorption in some acid soils Cadmium Sorb Distribution Coefficient Acid Soil Fulvic Acid
topic	ddc 570 ssgn 12 fid BIODIV rvk ZC 7520 misc Cadmium misc Sorb misc Distribution Coefficient misc Acid Soil misc Fulvic Acid
topic_unstemmed	ddc 570 ssgn 12 fid BIODIV rvk ZC 7520 misc Cadmium misc Sorb misc Distribution Coefficient misc Acid Soil misc Fulvic Acid
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title	Affinity constants and behavior of Cd sorption in some acid soils
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title_full	Affinity constants and behavior of Cd sorption in some acid soils
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title_sort	affinity constants and behavior of cd sorption in some acid soils
title_auth	Affinity constants and behavior of Cd sorption in some acid soils
abstract	Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces. © Kluwer Academic Publishers 1991
abstractGer	Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces. © Kluwer Academic Publishers 1991
abstract_unstemmed	Abstract Cadmium sorption was studied in several acidic soils in a pH range from 4.5 to 6.5. The soils had two classes of surfaces with acidity constants ($ pKa_{1} $ = 4.09 and $ pKa_{2} $ = 6.39) similar to those for weakly and very weakly cidic carboxyls, and N-containing groups in fulvic acid. Titratable H and acidity constants were used to estimate the number of exchange sites at each pH level. Sorption of Cd was closely related to Cd concentration, pH, and soil type. Although the inclusion of pH and organic C contents in a regression accounted for some variations in the Cd distribution coefficient defined as the ratio of the quantity of Cd sorbed to the solution Cd concentration, the number of sorption sites was a more appropriate factor to explain the variability. Because of a negligible contribution to the number of exchange sites from Fe oxides, the sorption of Cd at pH = 4.5 was considered to be of a one-surface Langmuir type. A two-surface Langmuir equation was considered to model sorption at higher pH values. The average affinity constants (log K) were 3.61 and 4.89 for Cd sorption by the two classes of surfaces. © Kluwer Academic Publishers 1991
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title_short	Affinity constants and behavior of Cd sorption in some acid soils
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