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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
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).
作者姓名:张琪  占鹏  聂发辉  胡松  刘占孟
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
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)
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。

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
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.
Keywords:leachate biochemical tail water  Na2S2O8  Fe3O4  catalytic oxidation
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