Technical parameters optimization of leachate tail water treatment by Fe2+-activated persulfate oxidation process

doi:10.11894/1005-829x.2016.36(2).029

INDUSTRIAL WATER TREATMENT ›› 2016, Vol. 36 ›› Issue (2): 29-32. doi: 10.11894/1005-829x.2016.36(2).029

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Technical parameters optimization of leachate tail water treatment by Fe²⁺-activated persulfate oxidation process

Liu Zhanmeng, Zhan Peng, Nie Fahui, Zhang Qi

School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China

Received:2015-11-18 Online:2016-02-20 Published:2016-02-26

亚铁活化过硫酸盐氧化渗滤液尾水工艺参数优化

刘占孟, 占鹏, 聂发辉, 张琪

华东交通大学土木建筑学院, 江西南昌 330013

作者简介:刘占孟(1977-),博士,副教授。电话:13576060580,E-mail:ustblzm@163.com。
基金资助:
国家自然科学基金项目(51468016);江西省自然科学基金项目(20142BAB203027);江西省科技支撑计划项目(20151BBG70020,20141BBG70003)

Abstract

Abstract:

Leachate tail water has been treated by Fe²⁺-activated persulfate oxidation,and the technical parameters of the process are studied by single-factor variable method. The results show that the optimum parameters are as follows:n(Fe²⁺)/n(S₂O₈^2-) is 0.25,initial pH 4,Na2S2O8 dosage 4.0 g/L,and reaction time 12 h. Under these conditions, the leachate tail water COD removing rate and chroma removing rate are 60% and 95%,respectively. The research results can provide a kind of technical reference for landfill leachate tail water treatment.

Key words: persulfate activation, sulfate free radical, leachate tail water, advanced oxidation

摘要：

采用亚铁活化过硫酸盐氧化渗滤液尾水,利用单因素变量法研究了亚铁活化过硫酸盐氧化渗滤液尾水的工艺参数。结果表明,适宜的工艺参数:n(Fe²⁺)/n(S₂O₈^2-)为0.25,废水初始pH=4,过硫酸钠投加量为4.0 g/L,反应时间为12 h。在上述工艺条件下,渗滤液尾水的COD去除率和色度去除率可分别达到60%和95%。该项研究可为渗滤液尾水的处理提供一种技术选择。

关键词: 过硫酸盐活化, 硫酸根自由基, 渗滤液尾水, 高级氧化

CLC Number:

X703

Liu Zhanmeng, Zhan Peng, Nie Fahui, Zhang Qi. Technical parameters optimization of leachate tail water treatment by Fe²⁺-activated persulfate oxidation process[J]. INDUSTRIAL WATER TREATMENT, 2016, 36(2): 29-32.

刘占孟, 占鹏, 聂发辉, 张琪. 亚铁活化过硫酸盐氧化渗滤液尾水工艺参数优化[J]. 工业水处理, 2016, 36(2): 29-32.

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Technical parameters optimization of leachate tail water treatment by Fe²⁺-activated persulfate oxidation process

亚铁活化过硫酸盐氧化渗滤液尾水工艺参数优化

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