Research on Cadmium Adsorption-Desorption Dynamics of Biochar

Zhen Yu Zhang; Jun Meng; Shu Dang; Ming Chao Gao; Wen Fu Che

doi:10.4028/www.scientific.net/AMR.726-731.179

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Research on Cadmium Adsorption-Desorption Dynamics...

Research on Cadmium Adsorption-Desorption Dynamics of Biochar

Abstract:

This research studies the effect of cadmium adsorption-desorption kinetics with different pyrolysis temperature biochar. The biochar which derived from rice husk at 300°C, 400°C, 500°C temperature for 30 minutes were added into Cd²⁺ solutions of 0.5 mg/L, 2.5 mg/L and 5 mg/L respectively. The optimal model of cadmium adsorption desorption kinetic behavior is the Level 1 dynamic equation. Indicates the increasing Cd²⁺ adsorption ability of biochar with pyrolysis temperature rising. Biochar also shortens adsorption process at relatively low Cd²⁺ initical concentrations.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

179-183

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.179

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Online since:

August 2013

Authors:

Zhen Yu Zhang, Jun Meng, Shu Dang, Ming Chao Gao, Wen Fu Che

Keywords:

Adsorption-Desorption Kinetics, Biochar, Cadmium (Cd), Pyrolysis Temperature

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