Removal characteristics of cadmium ion by waste egg shell

被引：34

作者：

Kuh, SE ^{[1
]}

Kim, DS ^{[1
]}

机构：

[1] Ewha Womans Univ, Dept Environm Sci & Engn, Seoul 120750, South Korea

来源：

ENVIRONMENTAL TECHNOLOGY | 2000年 / 21卷 / 08期

关键词：

egg shell; cadmium ion; adsorption; Freundlich adsorption isotherm; reaction kinetics;

D O I：

10.1080/09593330.2000.9618973

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Waste egg shell is used as adsorbent to treat cadmium bearing wastewater. Characteristics of cadmium ion removal by egg shell in synthetic wastewater was investigated for various parameters. This study shows the effect of reaction time, the amount of egg shell, concentration of cadmium ion, the size of egg shell, temperature and solution pH on the extent of cadmium ion adsorption from solution. Adsorption increased with the increase in reaction time, the amount of egg shell, temperature and pH. But the amount of adsorption decreased according to the increase in the egg shell size. This study also examines the adsorption isotherm and reaction kinetics for cadmium ion. The adsorption process was found to have a tendency to be endothermic and the adsorption isotherms for cadmium ion could be fitted closely by the Freundlich model.

引用

页码：883 / 890

页数：8

共 25 条

[1] The influence of temperature on the adsorption of cadmium(II) and cobalt(II) on goethite [J].

Angove, MJ ;

Wells, JD ;

Johnson, BB .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1999, 211 (02) :281-290

[2] Adsorption of cadmium(II) on kaolinite [J].

Angove, MJ ;

Johnson, BB ;

Wells, JD .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1997, 126 (2-3) :137-147

[3]

CARTER MC, 1992, J AM WATER WORKS ASS, V84, P81

[4]

CHANG R, 1977, PHYSICAL CHEM APPLIC, P373

[5] Cadmium ion adsorption controls the growth of CdS nanoparticles on layered montmorillonite and calumit surfaces [J].

Dékàny, I ;

Turi, L ;

Galbács, G ;

Fendler, JH .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1999, 213 (02) :584-591

[6]

Eligwe CA, 1999, CHEM ENG TECHNOL, V22, P45, DOI 10.1002/(SICI)1521-4125(199901)22:1<45::AID-CEAT45>3.0.CO

[7]

2-D

[8]

GOULDEN PD, 1978, ENV POLLUTION ANAL

[9] REMOVAL OF CADMIUM USING CHITOSAN [J].

JHA, IN ;

IYENGAR, L ;

RAO, AVSP .

JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 1988, 114 (04) :962-974

[10]

KIM EH, 1997, J KOREAN I MINER ENE, V34, P414

← 1 2 3 →