响应面法优化Fenton试剂法处理槟榔废水  

Optimization of Fenton processes for areca wastewater by response surface method

作　　者：王杰[1] 颜智勇[1] 文树龙 唐曾晖 刘富安[1] 蔡意祥 

机构地区：[1]湖南农业大学资源环境学院,长沙410128

出　　处：《环境工程学报》2016年第2期537-543,共7页Chinese Journal of Environmental Engineering

基　　金：环保部公益性行业科研专项(201109024);国家"水体污染控制与治理"科技重大专项(2008ZX07211-001);湖南省研究生创新项目(CX2013B302)

摘　　要：本实验研究了Fenton试剂法处理槟榔废水的工艺条件。基于Box-Behnken响应曲面法,考察了初始p H值、双氧水投加量、硫酸亚铁投加量和反应时间的单独作用和交互作用,并建立了TOC去除率数学模型。实验表明,在初始p H值为5,双氧水投加量为50 mg/L,硫酸亚铁投加量为12.5 g/L,反应时间为120 min,0.2%PAM加入量为0.2 m L时,整个反应过程对TOC去除率可达到64.1%。通过Box-Behnken响应曲面可知,双氧水投加量、硫酸亚铁投加量的交互作用对TOC去除率有显著影响,其中双氧水投加量对TOC去除率的影响极显著。Fenton试剂处理槟榔废水最佳的工艺条件为:双氧水投加量为54.2 m L/L,硫酸亚铁投加量12.55 g/L,初始p H值为4.98,反应时间为103.5 min。在此条件下TOC去除率为70.18%。The Fenton process was used to treat the areca wastewater. Based on Box-Behnken response surface methodology,the primary focus of this paper is to evaluate simple and combined effects of the H2O2 dosage,Fe SO4 dosage,initial p H value and the reaction time,establish a mathematical model between TOC removal rate and the above influence factors,and optimize the removal efficiency in Fenton process. When the conditions were the initial p H value of 5,H2O2 dosage of 50 m L / L,Fe SO4 dosage of 12. 5 g / L,the reaction time of 120 min,and0. 2% PAM dosage of 0. 2 m L,the removal efficiency of TOC was 64. 1%. The combined effect of H2O2 dosage,Fe SO4 dosage was significant. Additionally,the effect of H2O2 dosage on the TOC removal rate was particularly significant. The optimum reaction conditions with the highest TOC removal ratio of 70. 18% were determined to be H2O2 dosage of 54. 2 m L / L,Fe SO4 dosage of 12. 55 g / L,initial p H value of 4. 98,and reaction time of 103. 5 min.

关 键 词：响应面 FENTON试剂 槟榔废水 

分 类 号：X703[环境科学与工程—环境工程]