预混凝—Fenton氧化法深度处理废纸造纸废水研究  

Study on the advanced treatment of regenerated papermaking wastewater by pre-coagulation-Fenton oxidation process

作　　者：何争光[1] 孙少杰[1,2] 韩艳萍[1] 

机构地区：[1]郑州大学水利与环境学院,河南郑州450001 [2]郑州市规划勘测设计研究院,河南郑州450052

出　　处：《工业水处理》2014年第12期46-50,共5页Industrial Water Treatment

基　　金：国家水体污染控制与治理重大专项(2012ZX07204-001-02-01)

摘　　要：采用预混凝—Fenton氧化法对新密市某造纸厂废纸造纸废水的二级生化出水进行深度处理,研究了各主要因素对COD去除率的影响,确定了最佳工艺条件。实验结果表明:采用预混凝—Fenton氧化法深度处理废纸造纸废水可取得很好的效果,COD总去除率为84.82%,出水COD为76 mg/L,达到回用要求。氧化处理后,废水中残余的H2O2会对COD产生影响,调节温度和p H不适宜去除低浓度的H2O2。该废水经处理后大部分有机污染物被降解,部分木质素片段芳环结构开裂转化成脂肪族羧酸类有机物。The advanced treatment of the secondary biochemical effluent of the regenerated papermaking wastewater from a paper mill in Xinmi City has been conducted by pre-coagulation-Fenton oxidation process. The effects of main factors on COD removing rate are investigated and the optimal technological conditions are determined. The results show that a very good result can be obtained by using pre-coagulation-Fenton oxidation process for the ad-vanced treatment of regenerated paper-making wastewater. The total COD removing rate is 84.82%,and the effluent COD is 76 mg/L,reaching the recycling requirements. After the oxidation treatment,the residual H2O2 in wastewater would have influence on COD. Adjusting temperature and pH is not suitable for removing low-concentration H2O2. After the treatment,most organic pollutants can be degraded and part of aromatic ring structure of lignin fragments split are converted into aliphatic carboxylic acid organic matter.

关 键 词：FENTON氧化 预混凝 废纸造纸 深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]