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剩余污泥对酸性大红G的吸附

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王春英, 刘茹, 黄晓霞. 剩余污泥对酸性大红G的吸附[J]. 环境工程学报, 2013, 7(6): 2218-2224.
引用本文: 王春英, 刘茹, 黄晓霞. 剩余污泥对酸性大红G的吸附[J]. 环境工程学报, 2013, 7(6): 2218-2224.
shu
Wang Chunying, Liu Ru, Huang Xiaoxia. Adsorption of Acid Red G on excess activated sludge[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2218-2224.
Citation: Wang Chunying, Liu Ru, Huang Xiaoxia. Adsorption of Acid Red G on excess activated sludge[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2218-2224.
shu

剩余污泥对酸性大红G的吸附

  • 1.

    嘉应学院化学与环境学院, 梅州 514015

  • 基金项目:

    梅州市科技局、嘉应学院联合立项项目(2012KJA10)

  • 中图分类号: X703

Adsorption of Acid Red G on excess activated sludge

  • 1.

    School of Chemistry and Environment, Jiaying University, Meizhou 514015, China

  • Fund Project:

摘要

  • 摘要: 以剩余污泥为吸附剂,研究其对模拟废水中酸性大红G的吸附条件及吸附机理。结果表明,剩余污泥对酸性大红G的吸附是一个快速过程,吸附时间可控制在30 min;其吸附过程同时受液膜扩散和颗粒内扩散的影响,可以用假二级动力学模型进行描述和预测;Freundlich方程可以较好地描述剩余污泥对酸性大红G的吸附行为。污泥未调pH时,对pH<2的溶液中酸性大红G的吸附性能良好;污泥pH为1时,对实验范围(pH<11)溶液中的酸性大红G均可有效吸附;污泥投加量增加,酸性大红G去除率升高,但污泥对酸性大红G的吸附量下降。
    Abstract: Adsorption of Acid Red G(AR G) with excess activated sludge(EAS) was studied in simulated wastewater. The results showed that the EAS adsorbed AR G in a short time and the adsorption time could be in 30 minutes. The adsorption process was influenced by film diffusion and intraparticle diffusion. The kinetic experimental results were best adjusted to the pseudo second order modle. Mathematical model simulation showed that the adsorption process by EAS better followed the Freundlich adsorption isotherm.If the EAS was directly employed as adsorbent, the EAS could adsorb AR G effectively from simulated wastewater at pH<2. While if the EAS pH had been adjusted to pH 1, the EAS would adsorb AR G effectively from simulated wastewater at pH<11.The increase of the sludge dosage would promote the removal efficiency of AR G, but it resulted in the decrease of adsorbance.
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  • 收稿日期:  2012-03-25
  • 刊出日期:  2013-06-11
王春英, 刘茹, 黄晓霞. 剩余污泥对酸性大红G的吸附[J]. 环境工程学报, 2013, 7(6): 2218-2224.
引用本文: 王春英, 刘茹, 黄晓霞. 剩余污泥对酸性大红G的吸附[J]. 环境工程学报, 2013, 7(6): 2218-2224.
shu
Wang Chunying, Liu Ru, Huang Xiaoxia. Adsorption of Acid Red G on excess activated sludge[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2218-2224.
Citation: Wang Chunying, Liu Ru, Huang Xiaoxia. Adsorption of Acid Red G on excess activated sludge[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2218-2224.
shu

剩余污泥对酸性大红G的吸附

  • 1. 嘉应学院化学与环境学院, 梅州 514015
  • 收稿日期:  2012-03-25
基金项目:

梅州市科技局、嘉应学院联合立项项目(2012KJA10)

摘要: 以剩余污泥为吸附剂,研究其对模拟废水中酸性大红G的吸附条件及吸附机理。结果表明,剩余污泥对酸性大红G的吸附是一个快速过程,吸附时间可控制在30 min;其吸附过程同时受液膜扩散和颗粒内扩散的影响,可以用假二级动力学模型进行描述和预测;Freundlich方程可以较好地描述剩余污泥对酸性大红G的吸附行为。污泥未调pH时,对pH<2的溶液中酸性大红G的吸附性能良好;污泥pH为1时,对实验范围(pH<11)溶液中的酸性大红G均可有效吸附;污泥投加量增加,酸性大红G去除率升高,但污泥对酸性大红G的吸附量下降。

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