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Alternative TitleBiomass derived amino-functionalized carbonaceous materials for Hg2+ removal
刘明灯; 王传义
Conference Name2013重金属污染防治及污染场地调查、评估与修复新技术、新设备交流研讨会
Conference Date2013-06-01
Conference Place长沙;上海


Other Abstract

Preparation of biomass carbon from pomegranate peel amino system by hydrothermal method, used for the adsorption of Hg~(2+) in water.Removal efficiencies of the as-prepared carbonaceous material were tested as a function of initial pH and initial metal concentrations.The results show that the ammonia as the solvent can be significantly increased biomass char nitrogen content to significantly increase in the adsorption capacity.Adsorption kinetics can be elucidated by pseudo-second-order model.The maximum adsorption capacity for Hg~(2+) by amino-functionalized carbonaceous materials is 483.5 mg/g, about 4 times higher than that of unmodified carbonaceous materials.Moreover, as-prepared carbonaceous adsorbent can remove 99.7% of Hg~(2+) ions from practical wastewater generated in chlor-alkali industry, thus reaching the discharge permission standard.The results suggested that the amino-functionalized carbonaceous materials might be promising adsorbents for the removal of Hg~(2+) ions from aqueous solution.

Keyword氨基化生物质炭 汞离子 吸附 实际废水
Indexed ByCSCD
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Document Type会议论文
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GB/T 7714
刘明灯,王传义. 氨基化生物质炭吸附水中汞离子性能研究[C],2013:45-53.
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