无机离子对Fenton试剂处理苯酚废水效果影响的研究  

Study on the Effect of the Inorganic ion in the Treatment of Phenol Wastewater by Fenton Reagent

作　　者：李亚峰[1] 朱爱霞[1] 庞晶晶[1] 王春敏[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2006年第4期604-608,共5页Journal of Shenyang Jianzhu University：Natural Science

基　　金：辽宁省教育厅攻关项目(2004D081)

摘　　要：目的研究Fe3+、H2PO4-、CO32-、HCO3-、SO42-及NO3-对Fenton试剂处理苯酚废水效果的影响.方法保持Fenton体系的基本反应条件不变,而向体系中投加无机离子溶液,考察外加无机离子浓度的变化对Fenton试剂处理苯酚废水效果的影响.结果适当浓度的Fe3+能够与Fe2+协同作用,增强Fenton试剂的催化氧化能力,而当Fe3+浓度过高时,反而起到抑制作用.H2PO4-和碳酸根对Fenton试剂的催化氧化性能有不同程度的抑制作用;SO42-、NO3-的存在对Fenton试剂的催化氧化性能无明显影响.结论无机离子对Fenton试剂处理苯酚废水效果的影响不尽相同,若实际废水中含有抑制Fenton反应的无机离子,应视其在废水中的浓度所能达到的抑制程度决定是否在Fenton处理前对其采取适当的屏蔽措施,以保证废水处理效果.The influence of the Fe^3＋、H2PO4-、 CO3^2-、 HCO3-、 SO4^2- and NO3- on the treatment of phenol wastewater by Fenton reagent is the purpose of the study. Keeping the basic reaction condition of the Fenton system constant, the method is to investigate the influence of the concetration variety on the treatment of phenol wastewater by Fenton reagent when add the inorganic ion to the system. The experemental results indicate that the catalytic oxidation ability of the Fenton reagent is strenthened by the appropriate concentration of the Fe^3＋ combined with Fe^2 ＋, but the catalytic oxidation ability will be restrained when the Fe^3 ＋ concentration is too high; There is restraint of different degrees that H2PO4- and CO3^2- passing on the catalytic oxidation ability of the Fenton reagent, but it has no obvious influence of the existence of the SO4^2- 、NO3- on it. The result shows that the influence of inorganic ion on the treatment of phenol wastewater by Fenton reagent differs from each other. Whether to adopt the adequate prevention measure before the Fenton treatment is determined by the restraint degree that decided by the concentration it reached in the wastewater, and meanwhile reaching the goal of guaranteeing the treatment effect.

关 键 词：苯酚废水 FENTON试剂 氧化 无机离子 

分 类 号：X703[环境科学与工程—环境工程]