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Fe salts as catalyst for the wet oxidation of o-chlorophenol

  • Environmental Sciences
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Abstract

Catalytic wet air oxidation (CWAO) of o-chlorophenol in wastewater was studied in a stainless steel autoclave using four different Fe catalysts in the temperature range of 100–200°C. Experimental results showed that high rate of o-chlorophenol and CODCr (Chemical Oxygen Demand, mg/L) removal by CWAO was obtained at relatively low temperature and pressure. The catalysts Fe2(SO4)3, FeSO4, Fe2O3 and FeCl3 all exhibited high catalytic activity. More than 93.7% of the initial CODCr and nearly 100% of o-chlorophenol were removed at 150°C after 150 min with FeSO4 as catalyst. The CWAO of o-chlorophenol was found to be pseudo-first order reaction with respect to o-chlorophenol, with activation energy of 75.56 kJ/mol in the temperature range of 100–175°C.

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Authors and Affiliations

  1. Department of Environmental Engineering, Zhejiang University, 310027, Hangzhou, China

    Xu Xin-hua, Ping He, Jian Jin & Zhi-wei Hao

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  1. Xu Xin-hua
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  2. Ping He
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  3. Jian Jin
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  4. Zhi-wei Hao
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Correspondence to Xu Xin-hua.

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Project (No. 20407015) supported by the National Natural Science Foundation of China

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Xu, Xh., He, P., Jin, J. et al. Fe salts as catalyst for the wet oxidation of o-chlorophenol. J Zheijang Univ Sci B 6, 569–573 (2005). https://doi.org/10.1631/jzus.2005.B0569

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  • DOI: https://doi.org/10.1631/jzus.2005.B0569

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