层迭灵芝子实体及其制备炭吸附Cd2+的研究

doi:10.3969/j.issn.1673-5854.2018.01.006

Abstract

Abstract: Sorption capacities of Cd²⁺from aqueous solutions on the sporophore and biochar of Ganoderma lobatum were evaluated under different conditions including adsorbent doses, pH value of solution, contact time and initial Cd²⁺concentrations. The results showed that, when the mass concentration of Cd²⁺ was 10 mg/L, the removal efficiencies of Cd²⁺ for sporophore and biochar were 94.50 % and 92.75 %, respectively, under optimum conditions of adsorbent dose of 0.2 g, pH value 7 and contact time 480 min. The sorption rate of Cd²⁺on sporophor was significantly higher than that on biochar, but no significant difference for sorption capacity could be observed between sporophore and biochar. Langmuir and Freundlich models could be used to describe the adsorption data,the results showed that the adsorption process of Cd²⁺on sporophore was consistent with the Freundlich model, while the adsorption process on the biochar was more consistent with the Langmuir model. The sorption processes of sporophore and biochar for Cd²⁺ followed well with pseudo second order kinetics.

Key words: macrofungus, biochar, sorption, cadmium ion

CLC Number:

TQ35
X131.2

YANG Silin, WANG Dawei, ZHANG Ying, LU Mei, TANG Liqiong, XU Chunxian, YANG Bin. Sorption of Cadmium Ion on Sporophore and Biochar of Ganoderma lobatum[J]. bce, 2018, 52(1): 35-40.

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Sorption of Cadmium Ion on Sporophore and Biochar of Ganoderma lobatum

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