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张伟, 汪爱河, 蒋海燕. 硫酸活化市政污泥对亚甲基蓝的吸附[J]. 环境工程学报, 2015, 9(8): 3790-3794. doi: 10.12030/j.cjee.20150833
引用本文: 张伟, 汪爱河, 蒋海燕. 硫酸活化市政污泥对亚甲基蓝的吸附[J]. 环境工程学报, 2015, 9(8): 3790-3794. doi: 10.12030/j.cjee.20150833
shu
Zhang Wei, Wang Aihe, Jiang Haiyan. Adsorption of methlyene blue by activated municipal sludge with sulphuric acid[J]. Chinese Journal of Environmental Engineering, 2015, 9(8): 3790-3794. doi: 10.12030/j.cjee.20150833
Citation: Zhang Wei, Wang Aihe, Jiang Haiyan. Adsorption of methlyene blue by activated municipal sludge with sulphuric acid[J]. Chinese Journal of Environmental Engineering, 2015, 9(8): 3790-3794. doi: 10.12030/j.cjee.20150833
shu

硫酸活化市政污泥对亚甲基蓝的吸附

  • 1.

    湖南城市学院市政与测绘工程学院, 益阳 413000

  • 基金项目:

    湖南省自然科学基金资助项目(2015JJ2022)

    湖南省教育厅科学研究重点项目(11A022)

  • 中图分类号: X788

Adsorption of methlyene blue by activated municipal sludge with sulphuric acid

  • 1.

    Institute of Municipal and Mapping Engineering, Hunan City University, Yiyang 413000, China

  • Fund Project:

  • 摘要: 采用市政剩余污泥作为原料,以硫酸作为活化剂制备吸附剂,并将其应用到含亚甲基蓝废水处理中。系统地研究了溶液初始pH值、亚甲基蓝初始浓度和吸附时间等因素对硫酸活化市政污泥吸附性能的影响。研究结果表明,在吸附剂投加量2 g/L,pH7.5,温度293 K条件下,硫酸活化市政污泥对亚甲基蓝的最大吸附量为38.4794 mg/g。吸附动力学和热力学研究结果表明,吸附剂对亚甲基蓝的吸附过程可用准二级动力学模型(R2=0.9910)、Freundlich吸附等温式(R2=0.9935)来描述。颗粒内扩散速率也是其吸附反应限制因素,但不是惟一限制因素。该研究表明,硫酸活化剩余污泥可以作为含亚甲基蓝染料废水的处理材料。
    Abstract: Excess sewage sludge activated by H2SO4 solution was used to prepare adsorbent in this experiment, and applied for the treatment of wastewater containing methylene blue. The influences of methlyene blue (MB) concentration, pH, adsorption time on MB adsorption using the activated sludge was investigated. Experimental results showed that the adsorption capacity of the adsorbent for MB was 38.4794 mg/g at dosage of 2 g/L, pH 7.5, temperature of 293 K. Adsorption kinetics and isotherms studies showed that the adsorption process of MB onto the adsorbent can be fitted with pseudo-second-order kinetic model (R2=0.9910) and Freundlich model (R2=0.9935). The intraparticle diffusion rate was the limiting factor in the adsorption process, but was not the only limiting factor. This study indicated that the excess sewage sludge activated by H2SO4 solution can be used as adsorbent for treating dye wastewater containing methylene blue.
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  • 收稿日期:  2015-05-27
  • 刊出日期:  2015-08-13
张伟, 汪爱河, 蒋海燕. 硫酸活化市政污泥对亚甲基蓝的吸附[J]. 环境工程学报, 2015, 9(8): 3790-3794. doi: 10.12030/j.cjee.20150833
引用本文: 张伟, 汪爱河, 蒋海燕. 硫酸活化市政污泥对亚甲基蓝的吸附[J]. 环境工程学报, 2015, 9(8): 3790-3794. doi: 10.12030/j.cjee.20150833
shu
Zhang Wei, Wang Aihe, Jiang Haiyan. Adsorption of methlyene blue by activated municipal sludge with sulphuric acid[J]. Chinese Journal of Environmental Engineering, 2015, 9(8): 3790-3794. doi: 10.12030/j.cjee.20150833
Citation: Zhang Wei, Wang Aihe, Jiang Haiyan. Adsorption of methlyene blue by activated municipal sludge with sulphuric acid[J]. Chinese Journal of Environmental Engineering, 2015, 9(8): 3790-3794. doi: 10.12030/j.cjee.20150833
shu

硫酸活化市政污泥对亚甲基蓝的吸附

  • 1. 湖南城市学院市政与测绘工程学院, 益阳 413000
  • 收稿日期:  2015-05-27
基金项目:

湖南省自然科学基金资助项目(2015JJ2022)

湖南省教育厅科学研究重点项目(11A022)

摘要: 采用市政剩余污泥作为原料,以硫酸作为活化剂制备吸附剂,并将其应用到含亚甲基蓝废水处理中。系统地研究了溶液初始pH值、亚甲基蓝初始浓度和吸附时间等因素对硫酸活化市政污泥吸附性能的影响。研究结果表明,在吸附剂投加量2 g/L,pH7.5,温度293 K条件下,硫酸活化市政污泥对亚甲基蓝的最大吸附量为38.4794 mg/g。吸附动力学和热力学研究结果表明,吸附剂对亚甲基蓝的吸附过程可用准二级动力学模型(R2=0.9910)、Freundlich吸附等温式(R2=0.9935)来描述。颗粒内扩散速率也是其吸附反应限制因素,但不是惟一限制因素。该研究表明,硫酸活化剩余污泥可以作为含亚甲基蓝染料废水的处理材料。

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