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花生壳对Cr(Ⅵ)的等温吸附模型研究 被引量:4

Study on Model of Peanut Shell Isothermally Adsorbing Cr(Ⅵ)
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摘要 在花生壳吸附剂量为1.0g、pH2.0、温度30℃、振荡速度140r/min、吸附时间360min条件下,实验研究了不同初始浓度(50 mg/L、75 mg/L、100 mg/L、125 mg/L、150 mg/L)的Cr(Ⅵ)溶液等温吸附曲线。研究结果表明,Langmuir等温吸附模型符合得更好;该吸附是一个优先吸附过程;最大饱和吸附量为6.25mg/g。 At conditions of 30 ℃ temperature,pH 7.0,peanut shell adsorption 1.0 g,vibration frequency 140 r/min and absorption time 30 min,Cr(Ⅵ) isothermal adsorption curve was studied with initial concentration of 50,75,100,125 and 150 mg/L respectively.The results showed that Langmuir model was more fit with the isothermal adsorption of peanut shell to Cr(VI) than Freundlich model,belonging to Priority Adsorption Process with maximum saturation adsorption of 6.25mg/g.
出处 《四川环境》 2011年第2期1-3,共3页 Sichuan Environment
基金 国家高技术研究发展计划(863计划)项目(2007AA05Z261) 国家大学生创新实验资助
关键词 花生壳 吸附Cr(Ⅵ) 等温吸附模型 Peanut shell adsorbing Cr(Ⅵ) isothermal adsorption model
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