ADSORPTION OF HUMIC SUBSTANCES BY HYDROXYALUMINUM-MONTMORILLONITE AND HYDROXYALUMINOSILICATE-MONTMORILLONITE COMPLEXES

被引：20
作者：
INOUE, K
ZHAO, LP
HUANG, PM
机构：
[1] JILIN AGR UNIV,DEPT SOIL SCI & AGR CHEM,JILIN,PEOPLES R CHINA
[2] UNIV SASKATCHEWAN,DEPT SOIL SCI,SASKATOON S7N 0W0,SASKATCHEWAN,CANADA
来源：
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1990年 / 54卷 / 04期
关键词：
D O I：
10.2136/sssaj1990.03615995005400040042x
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
The interaction between humic substances purified from an Andisol and montmorillonite (Mt) complexed with hydroxyaluminosilicate HAS or hydroxyaluminum (HyA) ions was studied. The HAS ions were formed from solutions containing HyA ions and orthosilicic acid at an Al concentration of 4 mM; Si/Al atomic ratios of 0, 0.25, 0.5, 0.75, and 1.0; and a NaOH/Al molar ratio of 2.0. The adsorption of humic substances by HAS-Mt and HyA-Mt complexes increased as pH decreased in the adsorption systems. The results indicate that besides HyA ions, the reactivity of HAS ions in humus accumulation and the pedogenic implication in soil environments merit attention.
引用
收藏
页码：1166 / 1172
页数：7
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