中文摘要：

酸性条件下考察了常见阴离子对Ti O2/H2O2/O3氧化效率的影响,目标化合物为羟基自由基的探针化合物乙酸。结果表明,硫酸根和硝酸根对体系氧化乙酸的效率几乎没有影响。加入磷酸盐可以减缓H2O2的分解速率,进而导致乙酸的降解效率下降,这可能与其在Ti O2表面的吸附作用有关。在初始p H为3.0时,氯离子对子乙酸的降解速率具有明显的抑制作用,氯离子浓度越高,抑制作用越明显。当溶液初始p H大于4.4以上时,氯离子对乙酸的降解效率几乎没有影响。以上结果对推动Ti O2/H2O2/O3体系处理酸性废水意义较为突出。

英文摘要：

Effect of different common anions on the efficiency of Ti O2/ H2O2/ O3 for the treatment of wastewater was investigated under acidic conditions using acetic acid,a probe compound for hydroxyl radicals during ozonation,as the target compound. Sulfate（ SO2-4） and nitrate（ NO-3） were found to have no effect on the efficiency of acetic acid degradation. The presence of phosphates reduced not only the decomposition rate of H2O2,but also the degradation rate of acetic acid due to adsorption of phosphate on the surface of Ti O2. At the initial p H of 3. 0,the presence of chloride ions significantly reduced the oxidative efficiency of Ti O2/ H2O2/ O3,and the higher the concentration of chloride ions,the more significant the decrease in the acetic acid degradation rate. However,chloride ions had almost no negative effect when the p H of solution was higher than 4. 4. The results are of significance for the application of Ti O2/ H2O2/ O3 in the treatment of acidic wastewater.