Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (12): 43-48.doi: 10.3969/j.issn.1000-565X.2013.12.008

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Photocatalysis- Fenton Degradation of Papermaking- Reconstituted Tobacco Slice Wastewater Using Fe- Bent

Mo Li- huan Zhou Zhi- ming Wang Yu- feng Lu Li- cheng   

  1. State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China∥United Laboratory of Plant Resources Chemistry and Chemical Engineering,Guangzhou 510640,Guangdong,China
  • Received:2013-01-25 Revised:2013-05-24 Online:2013-12-25 Published:2013-11-19
  • Contact: 莫立焕(1970-)，男，博士，高级工程师，主要从事制浆清洁生产与污染控制研究． E-mail:lhmo@scut.edu.cn
  • About author:莫立焕(1970-)，男，博士，高级工程师，主要从事制浆清洁生产与污染控制研究．
  • Supported by:

    国家 “973” 计划项目(2010CB732205)

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Abstract:

A heterogeneous Fenton catalyst,namely Fe- Bent,was prepared from Na- Bent through cation exchangeand was characterized by means of scan electron microscopy and X- ray diffraction.Then,the catalyst was used forthe advanced treatment of papermaking- reconstituted tobacco slice wastewater,and a Box- Behnken mathematicalmodel describing the relationship between wastewater CODCr and affecting factors was then established via the re-sponse surface analysis,with the photo- catalytic treatment process being finally optimized.The results show that(1) under optimal conditions,that is,an initial pH value of 2.7,a H2O2 dosage of 0.2% and a catalyst dosage of1750mg/L,the CODCr is as low as 60.44mg/L; (2) only a small amount of Fe ions leach from Fe- Bent during thereaction; and (3) the prepared catalyst can be easily recovered and reused.

Key words: wastewater treatment, tobacco slice wastewater, Fe- Bent, heterogeneous Fenton, response surfaceanalysis