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海绵铁还原耦合活性炭吸附-微波再生技术降解甲基橙

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王晓燕, 许振成, 刘芸, 鞠勇明, 任学昌, 庞志华, 郝火凡, 方建德. 海绵铁还原耦合活性炭吸附-微波再生技术降解甲基橙[J]. 环境工程学报, 2013, 7(6): 2093-2099.
引用本文: 王晓燕, 许振成, 刘芸, 鞠勇明, 任学昌, 庞志华, 郝火凡, 方建德. 海绵铁还原耦合活性炭吸附-微波再生技术降解甲基橙[J]. 环境工程学报, 2013, 7(6): 2093-2099.
shu
Wang Xiaoyan, Xu Zhencheng, Liu Yun, Ju Yongming, Ren Xuechang, Pang Zhihua, Hao Huofan, Fang Jiande. Degradation of methyl orange by sponge iron reduction coupled with GAC adsorption and microwave regeneration[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2093-2099.
Citation: Wang Xiaoyan, Xu Zhencheng, Liu Yun, Ju Yongming, Ren Xuechang, Pang Zhihua, Hao Huofan, Fang Jiande. Degradation of methyl orange by sponge iron reduction coupled with GAC adsorption and microwave regeneration[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2093-2099.
shu

海绵铁还原耦合活性炭吸附-微波再生技术降解甲基橙

  • 1.

    兰州交通大学环境与市政工程学院, 兰州 730070

  • 2.

    环境保护部华南环境科学研究所, 广州 510655

  • 基金项目:

    国家"十二五"科技支撑计划项目(2012BAJ21B07)

  • 中图分类号: X703.1

Degradation of methyl orange by sponge iron reduction coupled with GAC adsorption and microwave regeneration

  • 1.

    School of Environmental & Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

  • 2.

    South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China

  • Fund Project:

  • 摘要: 采用海绵铁(s-Fe0)还原耦合活性炭(GAC)吸附-微波(MW)再生技术降解甲基橙(MO)溶液,重点考察了s-Fe0投加量、粒径、微波功率等因素对MO去除效果的影响。结果表明,s-Fe0投加剂量为15.0 g/L、粒径为3~5 mm、超声波功率为200 W,反应1 h,MO的去除率为94.2%。其次,采用GAC吸附-MW再生技术(800 W,照射1 min)循环处理上述脱色后的MO废水。结果表明,GAC吸附可有效降低废水的生物毒性及残留的染料、TOC和总铁离子浓度,且MW辐射可有效再生吸附饱和的GAC颗粒。因此,s-Fe0还原耦合GAC吸附-MW再生技术可以有效降解MO染料,具有处理效果好、实现资源循环利用等优点。
    Abstract: In this study, we attempted to eliminate methyl orange (MO) in aqueous solution by magnetic sponge iron (s-Fe0) reduction combined with granular activated carbon (GAC) adsorption and microwave (MW) regeneration process, and investigated the effects of s-Fe0 dosage, particle size, ultrasonic power on the elimination process. The results showed that the decolorization rate of MO was 92.4% after 1 h treatment with the s-Fe0 particle size of 3~5 mm, the dosage of 1.5 g, and the ultrasonic power of 200 W. Moreover, the treated solution was further treated by GAC adsorption coupled with MW-based regeneration (800 W, 1 min). The results indicated that the GAC-based adsorption successfully eliminated biotoxicity and total organic carbon (TOC) and total iron ion concentration, as well as the residue MO of the treated solution. Furthermore, MW radiation could effectively regenerate the spent GAC basically maintaining the BET area, pore volume and pore size of GAC. Accordingly, it was feasible to reduce MO solution over s-Fe0 combined with GAC adsorption and microwave regeneration process with the advantages of better treatment, and reuse cycles.
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出版历程
  • 收稿日期:  2013-04-10
  • 刊出日期:  2013-06-11
王晓燕, 许振成, 刘芸, 鞠勇明, 任学昌, 庞志华, 郝火凡, 方建德. 海绵铁还原耦合活性炭吸附-微波再生技术降解甲基橙[J]. 环境工程学报, 2013, 7(6): 2093-2099.
引用本文: 王晓燕, 许振成, 刘芸, 鞠勇明, 任学昌, 庞志华, 郝火凡, 方建德. 海绵铁还原耦合活性炭吸附-微波再生技术降解甲基橙[J]. 环境工程学报, 2013, 7(6): 2093-2099.
shu
Wang Xiaoyan, Xu Zhencheng, Liu Yun, Ju Yongming, Ren Xuechang, Pang Zhihua, Hao Huofan, Fang Jiande. Degradation of methyl orange by sponge iron reduction coupled with GAC adsorption and microwave regeneration[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2093-2099.
Citation: Wang Xiaoyan, Xu Zhencheng, Liu Yun, Ju Yongming, Ren Xuechang, Pang Zhihua, Hao Huofan, Fang Jiande. Degradation of methyl orange by sponge iron reduction coupled with GAC adsorption and microwave regeneration[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2093-2099.
shu

海绵铁还原耦合活性炭吸附-微波再生技术降解甲基橙

  • 1.  兰州交通大学环境与市政工程学院, 兰州 730070
  • 2.  环境保护部华南环境科学研究所, 广州 510655
  • 收稿日期:  2013-04-10
基金项目:

国家"十二五"科技支撑计划项目(2012BAJ21B07)

摘要: 采用海绵铁(s-Fe0)还原耦合活性炭(GAC)吸附-微波(MW)再生技术降解甲基橙(MO)溶液,重点考察了s-Fe0投加量、粒径、微波功率等因素对MO去除效果的影响。结果表明,s-Fe0投加剂量为15.0 g/L、粒径为3~5 mm、超声波功率为200 W,反应1 h,MO的去除率为94.2%。其次,采用GAC吸附-MW再生技术(800 W,照射1 min)循环处理上述脱色后的MO废水。结果表明,GAC吸附可有效降低废水的生物毒性及残留的染料、TOC和总铁离子浓度,且MW辐射可有效再生吸附饱和的GAC颗粒。因此,s-Fe0还原耦合GAC吸附-MW再生技术可以有效降解MO染料,具有处理效果好、实现资源循环利用等优点。

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