Paper Information

Title: 

INVESTIGATION OF CYANIDE ADSORPTION AND RECOVERY ON ACTIVATED CARBON SURFACE FROM TAILING DAM WATER IN AGHDAREH-TAKAB GOLD PROCESSING PLANT

Type: PAPER
Author(s): SAMIEI A.A.*,KHODADADI AHMAD,ABD ELAHI MAHMOUD
 
 *TARBIAT MODARRES UNIVERSITY
 
Name of Seminar: SYMPOSIUM OF EARTH SCIENCES
Type of Seminar:  SYMPOSIUM
Sponsor:  ORGANIZATION OF GEOLOGICAL OF IRAN
Date:  2006Volume 24
 
 
Abstract: 

The basic purpose of this research was to study the investigation of cyanide adsorption on activated carbon surface from tailing dam water in AGHDAREH-TAKAB gold processing refractory in West Azerbaijan. In this refractory industrial activated carbon is used for the adsorption of gold complexes. Then in this work the same activated carbon was used for absorbing the cyanide from the tailing dam water. Solution pH, adsorption time, amount and size of activated carbon and temperature are some important parameters in the adsorption mechanism. Activated carbon was used in two fraction (6-12) mesh and (100-150) microns in tests. The optimum conditions (500-1000) microns fraction were obtained in pH=12, adsorption time=35 minute, temperature less than 30, activated carbon=34(gr/l) and adsorption percent=80. For (100-150) microns were obtained in pH=11.5, adsorption time=35 minute, temperature less than 30, activated carbon=38(gr/l) and. adsorption percent=82. Copper sulfate increasing caused an increase in the adsorption percentage. The (500-1000) microns fractions follow from freundlich isotherm rather than Longmuir isotherm and (100-150) microns fraction are due to both isotherm.

 
Keyword(s): CYANIDE, ACTIVATED CARBON, ADSORPTION, ADSORPTION ISOTHERM
 
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