印染废水的复合氧化剂耦合铁碳流化床深度处理  

Advanced treatment of printing and dyeing effluents by composite oxidant iron-carbon fluidized bed

作　　者：戚永洁 李俊波 蒋素英 蔡培杰 吴智仁[1] 张波[1] 

机构地区：[1]江苏大学环境与安全工程学院,江苏镇江212013 [2]艾特克控股集团股份有限公司,江苏宜兴214214

出　　处：《印染》2017年第16期15-18,24,共5页China Dyeing and Finishing

基　　金：国家科技支撑项目(2014BAC08B01)

摘　　要：采用复合氧化剂耦合铁碳流化床深度处理某印染厂二级生化出水,考察了氧化剂和硫酸亚铁投加量、反应时间及pH值对印染废水COD去除率的影响。通过正交试验确定了最佳工艺条件为:pH值2.5、反应时间2 h、10%硫酸亚铁投加量7.5 mL/L、氧化剂投加量1 mL/L,COD去除率高达78.5%。利用紫外光谱初探氧化降解产物,根据光谱图推测难降解有机物被氧化为CO_2和H_2O等无机物质。The secondary biochemical effluent from a printing and dyeing plant is treated by composite oxidant iron-carbon fluidized bed. The effects of oxidant dosage, ferrous sulphate dosage, reaction time and pH value on COD removal rate of printing and dyeing wastewater are investigated. The optimum operating conditions are pH value 2.5, reaction time 2 h, 10% ferrous sulphate 7.5 mL/L, oxidant 1 mL/L, and COD removal rate is up to 78.5%. The oxidative degradation products are studied by UV spectroscopy , and it is revealed that refractory organics are oxidized into CO2 and H2O.

关 键 词：印染废水 复合氧化剂 流化床 深度处理 

分 类 号：X791[环境科学与工程—环境工程]