【摘要】 采用Fe₃O₄/Na₂S₂O₈体系催化氧化处理垃圾渗滤液生化尾水,研究了Na₂S₂O₈与Fe₃O₄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(S₂O₈^2-)∶12m（COD）=1.2,Fe₃O₄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,Fe₃O₄/Na₂S₂O₈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。更多还原

【Abstract】 The Fe₃O₄/Na₂S₂O₈ system catalytic oxidation process has been used for treating landfill leachate biochemical tail water. The influences of the factors,such as the dosages of Na₂S₂O₈ and Fe₃O₄,p H,reaction time,etc.on the treatment effects are studied. The results show that when p H is 3,m（S2O82-） ∶12m（COD） =1.2,Fe₃O₄dosage1.5 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 untreated water samples.更多还原