Removal of COD from landfill leachate by an electro/Fe2+/peroxydisulfate process
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- 作者：Hui Zhang ; eeng@whu.edu.cn" class="auth_mail ; Zhe Wang ; Chiachi Liu ; Yongzhao Guo ; Ni Shan ; Chenxing Meng ; Lingyu Sun
- 关键词：Landfill leachate ; Electrochemical oxidation ; Sulfate radical ; COD removal ; Coagulation ; Ferrous ion
- 刊名：Chemical Engineering Journal
- 出版年：15 August 2014
- 年：2014
- 卷：250
- 期：Complete
- 页码：76-82
- 全文大小：556 K
文摘
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An electro/Fe2+/peroxydisulfate process was used to remove COD from landfill leachate.
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An empirical correlation between persulfate concentration and COD value was obtained.
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COD removal by oxidation and coagulation was quantitatively determined.
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Effects of pH0, current density, Fe2+ and PDS dosage on COD removal were investigated.
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62.2% COD was removed at 60 min, [PDS]:[Fe2+] = 62.5 mM:15.6 mM, pH 3 and j = 13.89 mA/cm2.