无机离子对Fenton试剂处理丁苯橡胶废水效果的影响

采用Fenton试剂法对化学需氧量（CODcr）为1000～2000mg／L，pH值为3—9的丁苯橡胶废水进行处理。在Fe^2＋／H2O2（体积比）为9／8，初始废水pH值为3．00±0．15，反应温度为50℃，反应时间为30min的条件下，研究了Fe^3＋，H2PO4^-；，Cl^-，CO3^2-，SO4^2-，NO3^-对废水CODCr去除率的影响。结果表明，在Fenton反应过程中，适当浓度的Fe^3＋能够与Fe^2＋协同作用，增强Fenton试剂的催化氧化能力，而当Fe^3＋浓度过高时，反而会起到抑制作用；H2PO4^-，Cl^-，CO3^2-对Fenton试剂的催化氧化能力有不同程度的抑制作用；SO4^2-，NO3^-的存在对Fenton试剂的催化氧化性能无明显影响。

Effect of the inorganic ion on treatment of SBR wastewater by Fenton reagent

SBR wastewater with chemical oxygen demand （CODcr） 1 000 - 2 000 mg/L and pH value 3 -9 was treated by Fenton method. The effects of Fe^3＋,H2PO4^-,Cl^-,CO3^2-,SO4^2-,NO3^- on the removal rate of CODcr by Fenton reagent were investigated at Fe^2 ＋/H2O2 （ volume ratio）9/8 ,pH value of initial wastewater 3.00 ± 0.15, reaction temperature 50 % , reaction time 30 min. The results showed that the catalytic oxidation ability of Fenton reagent was enhanced by the synexgy of appropriate concentration of Fe^3＋ with Fe^2＋ ,but the ability could be restrained when the Fe^3＋ concentration was high. H2 PO4^- , Cl^- , CO3^2- could restrain the ability of Fenton reagent to different extant, but SO4^2- and NO3 had no obvious influence on it.