超声波降解废水中十二烷基苯磺酸钠的实验研究

Decomposition of sodium dodecylneopelex in waste water by using ultrasonic wave

通过超声波作用于废水中的十二烷基苯磺酸钠(DBS)试验,讨论了辐照时间、溶液温度、溶液初始浓度、pH值、外加H2O2等因素对DBS降解效果的影响。结果表明:DBS的降解率随辐照时间的延长而增加;溶液温度在低于60℃时,DBS的降解率随温度的升高而增加,高于60℃降解率随温度的升高反而降低;溶液初始浓度增大降解率增加;溶液pH对降解率影响不大;外加H2O2可明显提高DBS降解率。

This paper discusses the influence of radiation time, temperature and initial concentration of solution, pH value and hydrogen peroxide on composition of sodium dodecylneopelex in waste water. The results show that the rate of decomposition increases with the lengthening of radiation time, the rate of decomposition increases with the increasing in temperature under 60 degree centigrade and the rate decreases with the increasing in temperature above 60 degree centigrade. The increasing of initial concentration increases in the rate of decomposition and pH value has little effect on the rate of decomposition and hydrogen peroxide obviously increases the rate of decomposition.