【摘要】 在采用盐酸羟胺 （HAH） 强化Fenton 体系(Fe^{2 +}/ H₂O₂) 降解苯胺 （AN） 的过程中， 水中常见离子对降解效果存在重要影响。 针对该问题， 以AN 模拟废水为实验对象， 采用单变量法对HAH/ Fe^{2 +}/ H₂O₂体系降解 AN 过程进行研究， 考察了水中常见阴离子 (Cl^- 、NO₃^-、SO₄^{2 -}、H₂PO₄^-)、 阳离子 (K⁺ 、Na⁺ 、Mg^{2 +} )、天然有机物富里酸 （FA）对 AN 降解的影响， 并通过叔丁醇 （TBA） 抑制实验验证体系中的活性自由基。 结果表明，Cl^- 、H₂PO₄^-和 FA 对该体系去除 AN 有抑制作用， 随着浓度的增加抑制作用越明显， 其中H₂PO₄^-抑制作用大于 Cl^- ；而 NO₃^-、SO₄^{2 -}和阳离子Na⁺ 、K⁺ 、Mg^{2 +}都没有产生明显影响； 最后TBA 的加入降低了 AN 的去除率， 验证了体系中的活性自由基为·OH。实验结果丰富了苯胺降解的研究， 表明其在工业废水的处理中有一定的指导作用。更多还原

【Abstract】 In the process of using hydroxylamine hydrochloride （HAH） to strengthen the Fenton system (Fe^{2 +}/ H₂O₂) to degrade aniline （AN）, common ions in water have an important impact on the degradation effect. To solve this problem, taking AN simulated wastewater as the experimental object, the univariate method was used to study the degradation process of AN in the HAH/ Fe^{2 +}/ H₂O₂system. The effects of common anions （ Cl^-、 NO₃^-、 SO₄^{2 -}、 H₂PO₄^-）, cations ( K⁺, Na⁺, Mg^{2 +}) and natural organic matter fulvic acid （FA） on the degradation of AN in water by the system were investigated. And through tert-butanol（TBA） inhibition experiments to verify the active free radicals in the system. The results showed that Cl^-, H₂PO₄^-and FA have inhibitory effects on the removal of AN in the system, and the inhibitory effect becomes more obvious with the increase of concentration, and the inhibitory effect of H₂PO₄^-is greater than that of Cl^-. However, NO₃^-, SO₄^{2 -}and cations Na⁺, K⁺,Mg^{2 +}have no significant effect. Finally, the addition of TBA reduced the removal rate of AN, which verified that the active free radicals in the system is ·OH. The experimental results enriched the research of aniline degradation, indicating that it has a certain guiding role in the treatment of industrial wastewater.更多还原