多孔水力空化装置降解甲基橙  

Porous hydrodynamic cavitation device for degrading Methyl Orange

作　　者：师淑婷 晋日亚[1] 杨思静[1] 孔维甸 王永杰[1] 李志通[1] 郑伟民[1] 

机构地区：[1]中北大学化工与环境学院,大原030051

出　　处：《环境工程学报》2016年第3期1271-1275,共5页Chinese Journal of Environmental Engineering

基　　金：山西省科技攻关项目(2015031020)

摘　　要：研制了多孔水力空化装置,并将其应用于降解甲基橙溶液,通过测定甲基橙的降解率,考察了孔径、小孔排布方式、液体温度、运行时间对空化效果的影响,分析了平均降解速率与运行时间的关系。研究表明:孔径越小,小孔分布越均匀,空化效果越好,甲基橙的降解率越高;随着时间的延长,甲基橙的降解率不断提高,平均降解速率先增大再减小;当水温在40℃时,空化效果最好,甲基橙的降解率达到17.2%。综上所述,可以通过控制操作条件和优化孔板设计提高空化效果。Porous equipment for hydrodynamic cavitation was developed for the degradation of Methyl Orange solution. The influence of orifice diameter,distribution of holes,liquid temperature,and run-time on the cavitation effect was investigated by measuring the degradation rate of Methyl Orange,and the time-dependence of the average degradation rate of Methyl Orange was also analyzed. The results showed that smaller orifice diameter and uniform distribution of holes had positive influence on cavitation. Degradation rate of Methyl Orange increased with time,while the average degradation rate first increased and then decreased. The degradation rate of methyl orange maximized（ 17. 2%） at 40 ℃. In summary,cavitation could be improved by controlling the operating conditions and by optimizing the orifice design.

关 键 词：水力空化 甲基橙 多孔孔板 

分 类 号：X703[环境科学与工程—环境工程]