Effect of pH and Temperature on Absorption-Desorption of Cu²+ in Soil Nearby a Copper Tailings Yard

Author

Wang, Y.B. ; Zhang, X.Q.

Author_Institution

Coll. of Life Sci., Anhui Normal Univ., Wuhu, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

3

Abstract

A batch experiment was conducted to study the effect of pH and temperature on absorption and desorption of copper in soil, soil samples were collected from the vicinity of a copper tailings yard. The results showed that the pH value is one of the most important factors that influence the adsorption of copper. The Cu adsorption was reduced at the low pH. By increasing the pH value, the adsorption increased. As the pH arose, the Cu desorption was decreased. The temperature is another factor that may influence the Cu adsorption. The Cu adsorption increased with the elevation of temperature, while the tendency of Cu²⁺ desorption declined. Because of the temperature of 25°C is suitable for ions exchange, the desorption rate at 25°C appeared to be a bit higher in this study.

Keywords

absorption; copper; desorption; ion exchange; pH; positive ions; soil; soil pollution; thermochemistry; Cu²⁺; batch experiment; copper tailings yard; ion exchange; pH effects; soil Cu²⁺ absorption; soil Cu²⁺ desorption; temperature 25 degC; temperature effects; Biological materials; Biology; Chemicals; Copper; Educational institutions; Environmentally friendly manufacturing techniques; Industrial pollution; Soil pollution; Temperature; Water pollution;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5516809

Filename

5516809