中文摘要：

引言 超声波是指频率高于2×10^4Hz的声波，目前高效而经济的各种功率超声源已经能够广泛提供，使超声波在化工冶金中的应用研究得到了迅速发展，并形成了一门新兴的交叉学科——声化学。所谓声化学主要是指利用超声波来加速化学反应或启动新的反应通道，以提高化学反应产率或获取新的化学反应物的一门学科；是由于超声波在溶液中产生空化气泡而导致的空化效应所引起的一种特殊物理、化学效应。因其具有低能耗、少污染或无污染等特点，在冶金、化工、环保等领域得到了广泛的应用。

英文摘要：

The mechanism of ultrasonic desorption mathematically based on the characteristics of of sulfur dioxide from citrate solution was investigated ultrasonic wave. The factors influencing ultrasonic desorption of sulfur dioxide were discussed theoretically and the mechanism was verified by experiments. The results showed that it was feasible to remove sulfur dioxide from citrate solution with ultrasonic field in theory and on the laboratory scale. There was a greater effect of ultrasonic frequency and gas content in solution as well as solution properties on sulfur dioxide desorption. The sulfur dioxide desorption efficiency could be improved rapidly by introducing cavitation bubble nucleus, such as adding trace argon gas. A lower ultrasonic frequency might result in higher desorption efficiency. Giving a proper stirring to the solution, the SO2 desorption efficiency enhancement could be increased by 20%-30% over the control value. The higher the initial concentration of sulfur dioxide in citrate , the higher the desorption efficiency.