Fenton 法深度氧化湿法腈纶废水二级生化处理出水

采用Fenton氧化的方法对湿法腈纶废水二级生化出水进行深度氧化处理．通过单因素实验考察了Fenton试剂投加量、初始pH值及反应时间对该废水处理效果的影响．研究表明，ρH2O2为300 mg/L，ρFe2＋为300 mg/L，反应初始pH值为3．0，反应时间为120 min时，Fenton氧化反应对COD达到最大去除率57％．另外，通过FT-IR和三维荧光光谱分析探讨了该废水有机污染物在Fenton氧化过程中的去除规律．结果表明，生化出水中某些难降解芳香性物质可以被Fenton试剂氧化分解，废水的可生化性得到提升．

Advanced treatment of secondary biochemical effluent from wet processed manufacturing acrylic fiber by Fenton oxidation

Fenton oxidation was applied to treat the secondary biochemical effluent from the wet processed manufacturing of acrylic fiber .Based on the batch tests , the influences of Fen-ton’ s reagent dosage , initial pH and reaction time on the treatment effect of oxidation are in-vestigated .Experimental results demonstrated that the optimal condition of the Fenton oxida-tion reaction was as below：ρH2O2 was 300 mg/L,ρFe2＋was 300 mg/L, the initial pH was 3.0, the reaction time was 120 min.As a result, a COD removal rate of 57%would be observed. Moreover , the FT-IR spectrum and three -dimensional fluorescence scanning analysis were used to study the removal trend of the organic pollutants in the effluent during the Fenton oxi -dation process .The results showed that some recalcitrant aromatic substances could be de-composed by Fenton ’ s reagent and the wastewater ’ s biodegradability was improved .