Sorption of humic acid to soil: The role of soil mineral composition

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

In this study, the importance of individual soil mineral constituents on humic acid (HA) sorption is evaluated by employing a scanning electron microscope (SEM) equipped for energy-dispersive X-ray analysis (EDAX). The goal of the study is to observe the microchemical surface composition of model soil colloids and relate the surface microchemical composition to the sorption behavior of a peat soil derived HA on selected model soil colloids. This information is critical to understanding the fate and transport of subsurface contaminants. Results obtained from this study indicate the existence of a correlation between the atomic ratio of (Al + Fe): Si of soil colloid surfaces and the HA sorption capacity, where those soil colloids with larger values of the (Al + Fe): Si ratio are able to sorb HA more efficiently. This allows us to predict that the HA sorption capacity for soil colloids increases with progressively increasing states of soil maturity.

Original languageEnglish
Pages (from-to)2489-2499
Number of pages11
JournalChemosphere
Volume38
Issue number11
DOIs
Publication statusPublished - 1999 May 1

Fingerprint

Humic Substances
humic acid
Minerals
Sorption
Soil
sorption
colloid
Colloids
Soils
mineral
Chemical analysis
soil
Surface structure
peat soil
Peat
Energy dispersive X ray analysis
X-ray spectroscopy
Energy dispersive spectroscopy
Electron microscopes
electron

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

@article{027d166f37af4a9087df58a9fc1a156f,
title = "Sorption of humic acid to soil: The role of soil mineral composition",
abstract = "In this study, the importance of individual soil mineral constituents on humic acid (HA) sorption is evaluated by employing a scanning electron microscope (SEM) equipped for energy-dispersive X-ray analysis (EDAX). The goal of the study is to observe the microchemical surface composition of model soil colloids and relate the surface microchemical composition to the sorption behavior of a peat soil derived HA on selected model soil colloids. This information is critical to understanding the fate and transport of subsurface contaminants. Results obtained from this study indicate the existence of a correlation between the atomic ratio of (Al + Fe): Si of soil colloid surfaces and the HA sorption capacity, where those soil colloids with larger values of the (Al + Fe): Si ratio are able to sorb HA more efficiently. This allows us to predict that the HA sorption capacity for soil colloids increases with progressively increasing states of soil maturity.",
author = "Yun-Hwei Shen",
year = "1999",
month = "5",
day = "1",
doi = "10.1016/S0045-6535(98)00455-X",
language = "English",
volume = "38",
pages = "2489--2499",
journal = "Chemosphere",
issn = "0045-6535",
publisher = "Elsevier Limited",
number = "11",

}

Sorption of humic acid to soil : The role of soil mineral composition. / Shen, Yun-Hwei.

In: Chemosphere, Vol. 38, No. 11, 01.05.1999, p. 2489-2499.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Sorption of humic acid to soil

T2 - The role of soil mineral composition

AU - Shen, Yun-Hwei

PY - 1999/5/1

Y1 - 1999/5/1

N2 - In this study, the importance of individual soil mineral constituents on humic acid (HA) sorption is evaluated by employing a scanning electron microscope (SEM) equipped for energy-dispersive X-ray analysis (EDAX). The goal of the study is to observe the microchemical surface composition of model soil colloids and relate the surface microchemical composition to the sorption behavior of a peat soil derived HA on selected model soil colloids. This information is critical to understanding the fate and transport of subsurface contaminants. Results obtained from this study indicate the existence of a correlation between the atomic ratio of (Al + Fe): Si of soil colloid surfaces and the HA sorption capacity, where those soil colloids with larger values of the (Al + Fe): Si ratio are able to sorb HA more efficiently. This allows us to predict that the HA sorption capacity for soil colloids increases with progressively increasing states of soil maturity.

AB - In this study, the importance of individual soil mineral constituents on humic acid (HA) sorption is evaluated by employing a scanning electron microscope (SEM) equipped for energy-dispersive X-ray analysis (EDAX). The goal of the study is to observe the microchemical surface composition of model soil colloids and relate the surface microchemical composition to the sorption behavior of a peat soil derived HA on selected model soil colloids. This information is critical to understanding the fate and transport of subsurface contaminants. Results obtained from this study indicate the existence of a correlation between the atomic ratio of (Al + Fe): Si of soil colloid surfaces and the HA sorption capacity, where those soil colloids with larger values of the (Al + Fe): Si ratio are able to sorb HA more efficiently. This allows us to predict that the HA sorption capacity for soil colloids increases with progressively increasing states of soil maturity.

UR - http://www.scopus.com/inward/record.url?scp=0033136170&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033136170&partnerID=8YFLogxK

U2 - 10.1016/S0045-6535(98)00455-X

DO - 10.1016/S0045-6535(98)00455-X

M3 - Article

AN - SCOPUS:0033136170

VL - 38

SP - 2489

EP - 2499

JO - Chemosphere

JF - Chemosphere

SN - 0045-6535

IS - 11

ER -