【摘要】 利用Fenton氧化-双氰胺甲醛絮凝处理垃圾渗滤液,用单因素变量法,探究了Fenton试剂的投加量配比,pH条件,搅拌时间以及双氰胺甲醛的投加量、静置时间和温度对处理效果的影响。结果表明在Fe²⁺投加量为0.2 mM,H₂O₂投加量为1.0 mM,pH=3,搅拌时间5 min,双氰胺甲醛投加量20μL,静置时间为10 min时处理效果最佳,COD去除率可达到91.5%,色度去除率可达到95.75%。处理后的出水的可生化性得到了很大程度的提高。更多还原

【Abstract】 Fenton oxidation-dicyandiamide formaldehyde flocculation was used to treat landfill leachate. The effects of Fenton reagent dosage ratio, pH condition, stirring time, dicyandiamide formaldehyde dosage, standing time and temperature on the treatment effect were investigated by single factor variable method. The results showed that the best treatment effect was obtained when Fe²⁺ dosage was 0.2 mM, H₂O₂ dosage was 1.0 mM, pH=3, stirring time was 5 min, dicyandiamide formaldehyde dosage was 20 μL, and standing time was 10 min. COD removal rate could reach 91.5%, and chroma removal rate could reach 95.75%. The biodegradability of the treated effluent was greatly improved.更多还原