中文摘要：

为了解决砷污染的问题,研究了酸性条件下以臭氧做氧化剂氧化As（Ⅲ）的过程,考察了不同氧化剂、初始pH、反应温度和臭氧流量对As（Ⅲ）氧化效果的影响。结果表明,与空气相比,臭氧氧化As（Ⅲ）快速、高效;pH为1~5内,氧化速率随pH增大;在（23~53）℃内,由于臭氧溶解度降低,氧化速率随温度升高而降低,且在0℃时氧化速率很慢;在臭氧流量为90 mg/min以下时,氧化速率随臭氧通入速率的增加而增加。

英文摘要：

To solve the arsenic pollution, As（IlI） oxidation with ozone was studied in acidic solution. The effects of different oxidants, initial pH, temperature and the volume of the ozone flow were investigated. The results showed that As（Ⅲ） oxidation with ozone was quickly compared to air and the oxidation rate increased with the improvement of pH in the range between 1 and 5. The oxidation rate of As（Ⅲ） decreased with the increase of temperature between （23-53）℃ due to the decline of solubility of ozone, but at 0℃ the oxidation rate was very low. The oxidation rate of As（Ⅲ） increased with the growing flow rate of ozone when the flow volume below 90mg/min.