微电解-Fenton氧化组合工艺处理高浓度难降解有机废水  

Pretreatment of high concentration and hard-degrading / refractory organic wastewater by micro-electrolysis combined with Fenton oxidation process

作　　者：林小英[1] 刘志鹏[1] 余根鼎[1] 曹小霞[1] 林声焕 

机构地区：[1]福建工程学院生态环境与城市建设学院,福建福州350118

出　　处：《福建工程学院学报》2015年第3期264-268,共5页Journal of Fujian University of Technology

基　　金：福建省科技厅资助项目(JK2013032);福建省自然科学基金资助项目(2015J01033)

摘　　要：以福州某工业区煤焦油处理废水为例,采用单因素实验和正交实验方法,以CODCr去除率为考查因子,探讨微电解-Fenton氧化工艺对高浓度难降解有机废水的处理效果,确定主要影响因素及最佳条件,为工程应用提供参考。实验结果表明:当水样的CODCr为59 600 mg/L,BOD5为7 748 mg/L时,影响微电解-Fenton氧化组合工艺的主要因素依次为H2O2投加量、Fe/C质量比、水样p H值,并且在Fe/C质量比为1∶1,H2O2投加量为4 m L/L,p H值为3左右时,CODCr总去除率最佳,达到80.0%,可生化指数B/C从处理前的0.13提高到0.32,微电解-Fenton氧化工艺可有效地处理高浓度难降解有机废水,提高可生化处理程度。The pretreatment of wastewater of some industrial park in Fuzhou city with coal-tar was conducted by micro-electrolysis combined with Fenton oxidation process.Through the single factor experiments and orthogonal test,the influencing factors were investigated and the optimal conditions were determined.The results show that the main influential factors are in the order of the dosage of H2 O2 ,iron-carbon ratio and pH value when the wastewater CODCr is 59,600 mg/L,BOD5 is 7,748 mg/L.When the reaction time for the micro-electrolysis is 1 h,the pH value is about 3.0,the reac-tion time for the Fenton oxidation is 1 h and the dosage of H2 O2 （30%）is 4 mL/L ,the removal rate of CODCr reaches about 80.0 % while the B /C increases from 0.13 to 0.32.The results indi-cate that the treatment may contribute to biological treatments.

关 键 词：高浓度 难降解 有机废水 微电解 FENTON氧化 

分 类 号：X703[环境科学与工程—环境工程]