研究了间歇反应器中甲草胺的声化学分解。 甲草胺以128瓦的输入功率用氧气或臭氧（1 mg-L^-1在溶液中）作为喷雾气体。超声波照射的频率在不同的年龄段有所不同 205、358、618和1071千赫。频率为358 kHz时，降解率最高 恒定（0.098±0.003分钟^-1），氧气作为喷射气体。臭氧单独分解甲草胺 与1071 kHz的超声波处理速度一样快（k臭氧=0.045±0.004分钟^-1）。最快的分解 在358或618 kHz（平均k =0.229±0.006分钟^-1）。向系统中添加腐殖酸略微抑制了反应 甲草胺的分解。确定了甲草胺超声分解的几种有机中间体 通过GC/MS，包括2,6-二乙基苯胺和2-氯-2'，6'-二乙基乙酰苯胺。氯回收 当超声波处理和臭氧氧化相结合时，约为70%，表明 甲草胺氯化部分的矿化速度比单独使用这两种技术都要快。包括35个参考文献、表格和图表。

The sonochemical decomposition of alachlor in a batch reactor was investigated. Alachlor was irradiated with ultrasound at an input power of 128 Watts with oxygen or ozone (1 mg-L^-1 in solution) as a sparge gas. The frequency of ultrasonic irradiation was varied between 205, 358, 618, and 1071 kHz. A frequency of 358 kHz gave the highest degradation rate constant (0.098 ± 0.003 min^-1) with oxygen as the sparge gas. Ozone alone decomposed alachlor as quickly as sonication at 1071 kHz (k ozone = 0.045 ± 0.004 min^-1). The fastest decomposition achieved was with the combination of ozone and sonication at either 358 or 618 kHz (average k = 0.229 ± 0.006 min^-1). The addition of humic acids to the system slightly inhibited the decomposition of alachlor. Several organic intermediates of alachlor sonolysis were identified by GC/MS, including 2,6-diethylaniline and 2-chloro-2',6'-diethylacetanilide. Chlorine recovery was approximately 70 % when sonication and ozonation were combined, indicating that mineralization of the chlorinated portion of alachlor was faster than with either technology alone. Includes 35 references, table, figures.