PHOSPHATE ADSORPTION-DESORPTION CHARACTERISTICS OF SOILS AND BOTTOM SEDIMENTS IN MAUMEE RIVER BASIN OF OHIO

被引：75

作者：

MCCALLISTER, DL ^{[1
]}

LOGAN, TJ ^{[1
]}

机构：

[1] OHIO STATE UNIV, COLUMBUS, OH 43210 USA

来源：

JOURNAL OF ENVIRONMENTAL QUALITY | 1978年 / 7卷 / 01期

关键词：

PHOSPHATES - WATER POLLUTION - Agricultural Runoffs;

D O I：

10.2134/jeq1978.00472425000700010018x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Langmuir adsorption isotherms showed that Maumee River Basin sediments had adsorption capacities 10 to 20 times greater than Basin soils. Although the soil clay fractions had adsorption capacities higher than the whole soil, they were considerably less than those of the sediments and the difference is attributed to the higher content of amorphous or low-range order iron and aluminum components in the bottom sediments. Equilibrium phosphorus concentration and phosphorus desorbed was similar for soils and sediments as well as total P, indicating that although the bottom sediments have a high capacity to adsorb P, this capacity has not been realized. Correlations between adsorption-desorption parameters and soil/sediment properties are presented.

引用

页码：87 / 92

页数：6

共 27 条

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ARMSTRONG DE, 1974, MANAGEMENT PROGRAMS, P1

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