ADSORPTION, DESORPTION AND ISOTOPIC EXCHANGE OF CADMIUM ON ILLITE - EVIDENCE FOR COMPLETE REVERSIBILITY

被引：60

作者：

COMANS, RNJ

机构：

[1] Department of Geochemistry, Institute of Earth Sciences, University of Utrecht, 3508 TA Utrecht, Netherlands

来源：

WATER RESEARCH | 1987年 / 21卷 / 12期

关键词：

CHEMICAL REACTIONS - Reaction Kinetics - CLAY MINERALS - Sorption - Isotopes;

D O I：

10.1016/0043-1354(87)90143-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 [工学]; 0830 [环境科学与工程];

摘要：

Adsorption, desorption and isotopic exchange of Cd on illite clay have been studied at low Cd concentrations and low ionic strength. The results indicate that under the conditions of the experiments Cd sorption on illite is completely reversible. Long equilibration times (7-8 weeks) were shown to be essential because of slow desorption kinetics.

引用

页码：1573 / 1576

页数：4

共 14 条

[1]

ISOTOPIC EXCHANGE OF ZN-65 WITH STABLE ZN ADSORBED ON REFERENCE CLAY-MINERALS [J].

BOURG, ACM ;

FILBY, RH .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1976, 40 (12) :1573-1574

[2]

EFFECTS OF NONREVERSIBILITY, PARTICLE CONCENTRATION, AND IONIC-STRENGTH ON HEAVY-METAL SORPTION [J].

DITORO, DM ;

MAHONY, JD ;

KIRCHGRABER, PR ;

OBYRNE, AL ;

PASQUALE, LR ;

PICCIRILLI, DC .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1986, 20 (01) :55-61

[3]

A SURFACE PRECIPITATION MODEL FOR THE SORPTION OF CATIONS ON METAL-OXIDES [J].

FARLEY, KJ ;

DZOMBAK, DA ;

MOREL, FMM .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1985, 106 (01) :226-242

[4]

EXPERIMENTAL-STUDY OF CADMIUM ION EXCHANGEABILITY [J].

FERRELL, RE ;

PRICE, CA .

CLAYS AND CLAY MINERALS, 1978, 26 (01) :41-44

[5]

ESTIMATION OF ISOTOPICALLY EXCHANGEABLE CADMIUM AND ZINC IN SOILS [J].

FUJII, R ;

COREY, RB .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1986, 50 (02) :306-308

[6]

DESORPTION AND COAGULATION OF TRACE-ELEMENTS DURING ESTUARINE MIXING [J].

LI, YH ;

BURKHARDT, L ;

TERAOKA, H .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1984, 48 (10) :1879-1884

[7]

PARTITION OF RADIOTRACERS BETWEEN SUSPENDED PARTICLES AND SEAWATER [J].

LI, YH ;

BURKHARDT, L ;

BUCHHOLTZ, M ;

OHARA, P ;

SANTSCHI, PH .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1984, 48 (10) :2011-2019

[8]

A KINETIC APPROACH TO DESCRIBE TRACE-ELEMENT DISTRIBUTION BETWEEN PARTICLES AND SOLUTION IN NATURAL AQUATIC SYSTEMS [J].

NYFFELER, UP ;

LI, YH ;

SANTSCHI, PH .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1984, 48 (07) :1513-1522

[9]

Pickering W. F., 1980, Cadmium in the environment. Part 1. Ecological cycling., P365

[10]

Salomons W., 1984, METALS HYDROCYCLE

← 1 2 →