2013 Volume 7 Issue 4
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Chen Fangyan, Ye Wei, Sun Yihan, Jia Liping, Tang Yubin. Optimization of preparation conditions of polyacrylic acid/humic acid/rectorite adsorbent based on response surface methodology[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1417-1424.
Citation: Chen Fangyan, Ye Wei, Sun Yihan, Jia Liping, Tang Yubin. Optimization of preparation conditions of polyacrylic acid/humic acid/rectorite adsorbent based on response surface methodology[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1417-1424.
shu

Optimization of preparation conditions of polyacrylic acid/humic acid/rectorite adsorbent based on response surface methodology

  • 1.

    School of Biotechnology and Environmental Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, China

  • Received Date: 05/12/2011
    Accepted Date: 09/10/2011
    Available Online: 09/04/2013
    Fund Project:
  • Rectorite, acrylic acid and humic acid were used to prepare polyacrylic acid/humic acid/rectorite adsorbent which can absorb heavy metal ion and PAHs in water simultaneously. Response surface methodology was adopted to optimize the conditions for preparation of the absorbent. A quadratic model was established to calculate adsorption capacity of metal ion and PAHs, and analysis of variance was performed by Design Expert. The results indicate that the quadratic model could fit the relationship between sorption capacity and factors. The order of influence on sorption capacity of Cd2+ was as follows: cross-linker > initiator > neutralization degree, while the sequence on adsorption capacity of phenanthrene was initiator > cross-linker > neutralization degree. The maximum adsorption capacity of Cd2+ and phenanthrene were up to 170.19 mg/g and 7.36 mg/g when ratio of rectorite, acrylic acid and humic acid was 65∶30∶5, the neutralization degree was 75.16%, initiator was 2.57%, cross-linker was 0.44%, respectively.
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Optimization of preparation conditions of polyacrylic acid/humic acid/rectorite adsorbent based on response surface methodology

  • Received Date: 05/12/2011
  • Accepted Date: 09/10/2011
  • Available Online: 09/04/2013
Fund Project:

Abstract: Rectorite, acrylic acid and humic acid were used to prepare polyacrylic acid/humic acid/rectorite adsorbent which can absorb heavy metal ion and PAHs in water simultaneously. Response surface methodology was adopted to optimize the conditions for preparation of the absorbent. A quadratic model was established to calculate adsorption capacity of metal ion and PAHs, and analysis of variance was performed by Design Expert. The results indicate that the quadratic model could fit the relationship between sorption capacity and factors. The order of influence on sorption capacity of Cd2+ was as follows: cross-linker > initiator > neutralization degree, while the sequence on adsorption capacity of phenanthrene was initiator > cross-linker > neutralization degree. The maximum adsorption capacity of Cd2+ and phenanthrene were up to 170.19 mg/g and 7.36 mg/g when ratio of rectorite, acrylic acid and humic acid was 65∶30∶5, the neutralization degree was 75.16%, initiator was 2.57%, cross-linker was 0.44%, respectively.

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