Fe_3O_4/Na_2S_2O_8体系处理垃圾渗滤液生化尾水的实验研究 |
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引用本文: | 张琪,占鹏,聂发辉,胡松,刘占孟.Fe_3O_4/Na_2S_2O_8体系处理垃圾渗滤液生化尾水的实验研究[J].工业水处理,2016(6). |
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作者姓名: | 张琪 占鹏 聂发辉 胡松 刘占孟 |
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作者单位: | 1. 华东交通大学土木建筑学院,江西南昌,330013;2. 华东交通大学土木建筑学院,江西南昌330013; 江西水利职业学院,江西南昌330013;3. 江西水利职业学院,江西南昌,330013 |
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基金项目: | 国家自然科学基金项目(51168013,51468016);江西省自然科学基金项目(20142BAB203027);江西省科技支撑计划项目(20141BBG70003,20151BBG70020) |
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摘 要: | 采用Fe_3O_4/Na_2S_2O_8体系催化氧化处理垃圾渗滤液生化尾水,研究了Na_2S_2O_8与Fe_3O_4投加量、pH、反应时间等因素对处理效果的影响。结果表明,在pH=3,m(S_2O_8~(2-))∶12m(COD)=1.2,Fe_3O_4投加量为1.5 g/L,反应时间为24 h的条件下,COD与色度去除率分别为63%和100%。FTIR分析结果表明,Fe_3O_4/Na_2S_2O_8体系的小分子有机物含量比未处理水样小分子有机物含量有所降低。
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关 键 词: | 渗滤液生化尾水 Na2S2O8 Fe3O4 催化氧化 |
Experimental study on the treatment of landfill leachate biochemical tail water by the Fe3O4/Na2S2O8 system |
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Abstract: | The Fe3O4/Na2S2O8 system catalytic oxidation process has been used for treating landfill leachate bio-chemical tail water. The influences of the factors,such as the dosages of Na2S2O8 and Fe3O4,pH,reaction time,etc. on the treatment effects are studied. The results show that when pH is 3,m(S2O82-)∶12m(COD)=1.2,Fe3O4 dosage 1.5 g/L,and reaction time 24 h,the removing rates of COD and chroma are 63% and 100%,respectively. Fourier transform infrared(FTIR) spectroscopy analytical results show that the contents of small molecular organic substances in Fe3O4/Na2S2O8 system are obviously reduced,compared with that of small molecular organic substances in un-treated water samples. |
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Keywords: | leachate biochemical tail water Na2S2O8 Fe3O4 catalytic oxidation |
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