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CHEN Chuihan, SUN Jianyang, LI Ying, ZHAO Xu, WU Hongjuan. Adsorption of methylene blue on activated carbon prepared from printing sludge[J]. Chinese Journal of Environmental Engineering, 2018, 12(7): 1872-1878. doi: 10.12030/j.cjee.201710068
Citation: CHEN Chuihan, SUN Jianyang, LI Ying, ZHAO Xu, WU Hongjuan. Adsorption of methylene blue on activated carbon prepared from printing sludge[J]. Chinese Journal of Environmental Engineering, 2018, 12(7): 1872-1878. doi: 10.12030/j.cjee.201710068
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Adsorption of methylene blue on activated carbon prepared from printing sludge

  • 1.

    School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

  • 2.

    College of Environment, Zhejiang University of Technology，Hangzhou 310014, China

  • 3.

    Tan Kah Kee College, Xiamen University, Zhangzhou 363105, China

  • 4.

    Key Laboratory of Environment Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

  • Accepted Date: 13/10/2017
    Available Online: 26/07/2018
    Fund Project:
  • The sludge activated carbon derived from print sludge and ZnCl2 (chemical activating reagent) was used as adsorbent for methylene blue removal. The morphology and crystalline structures of the obtained sludge activated carbon were studied by the scanning electron microscopy and X-ray powder diffraction. The results showed that the pore structure of sludge activated carbon was mesoporous, which is benefit for the adsorption of macromolecular dye. The effects of sawdust dosage, initial pH, absorption temperature and initial concentration on the adsorption of methylene blue were studied. The adsorption capacity of the obtained samples can be improved by addition of sawdust with 1% ratio, whereas the excess amount of sawdust show negative effect to the pore structure of activated carbon. The adsorption capacity of the prepared sludge activated carbon decreased with the increase of pH.In the range from 5 to 45 ℃, the adsorption capability of the sludge activated carbon was gradually increased with temperature increasing and the maximum adsorption capacity can be achieved when the temperature was up to 45 ℃.The adsorption behavior of the sludge activated carbon were investigated from the thermodynamic aspect, and the results indicated that the adsorption of the sludge activated carbon on methylene blue followed the Langmuir isotherm equation. The obtained results may provide some support for the treatment of the sludge generated from dye wastewater treatment.
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Adsorption of methylene blue on activated carbon prepared from printing sludge

  • Accepted Date: 13/10/2017
  • Available Online: 26/07/2018
Fund Project:

Abstract: The sludge activated carbon derived from print sludge and ZnCl2 (chemical activating reagent) was used as adsorbent for methylene blue removal. The morphology and crystalline structures of the obtained sludge activated carbon were studied by the scanning electron microscopy and X-ray powder diffraction. The results showed that the pore structure of sludge activated carbon was mesoporous, which is benefit for the adsorption of macromolecular dye. The effects of sawdust dosage, initial pH, absorption temperature and initial concentration on the adsorption of methylene blue were studied. The adsorption capacity of the obtained samples can be improved by addition of sawdust with 1% ratio, whereas the excess amount of sawdust show negative effect to the pore structure of activated carbon. The adsorption capacity of the prepared sludge activated carbon decreased with the increase of pH.In the range from 5 to 45 ℃, the adsorption capability of the sludge activated carbon was gradually increased with temperature increasing and the maximum adsorption capacity can be achieved when the temperature was up to 45 ℃.The adsorption behavior of the sludge activated carbon were investigated from the thermodynamic aspect, and the results indicated that the adsorption of the sludge activated carbon on methylene blue followed the Langmuir isotherm equation. The obtained results may provide some support for the treatment of the sludge generated from dye wastewater treatment.

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