圆孔多孔板水力空化降解对硝基苯酚废水的试验研究  

Experimental study on degradation of P-NP by hydrodynamic cavitation due to circular multi-orifice plates

作　　者：董志勇[1] 徐琳香 李大炜[1] 张凯[1] 姚锐豪 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310014

出　　处：《浙江工业大学学报》2015年第3期275-278,共4页Journal of Zhejiang University of Technology

基　　金：国家自然科学基金资助项目(51179172)

摘　　要：试验基于水动力学实验室自主研发的多孔板型水力空化反应装置,进行了降解对硝基苯酚废水的研究.通过对不同过孔流速、不同几何参数多孔板、不同初始质量浓度对硝基苯酚进行空化试验,提出了空化数、过孔流速、初始质量浓度、处理时间、孔口数量、孔口大小与对硝基苯酚降解率的关系,为提高对硝基苯酚降解率提供了依据.试验结果表明:增加流速,选取最佳初始浓度,适当延长处理时间,设计孔板时适当增多孔口数量以及增大孔口大小,可以提高对硝基苯酚废水的降解率.Degradation of p-nitrophenol （P-NP） was experimentally investigated by using the circular multi-orifice plates as the reactor of hydrodynamic cavitation, which was designed in the Hydraulics Laboratory. Based on the cavitation test of different orifice velocities, different orifice geometric parameters and different initial concentrations of P-NP, variations of degradation rate of P-NP with cavitation number, orifice velocity,initial concentration, number and size of multi- orifice were developed. The experimental results showed that enhancing the velocity, choosing the appropriate initial concentration, improving the treatment time and iraising the number and size of orifice on the plates can increase the degradation rate of p-nitrophenol wastewater when designing the multi-orifice plates.

关 键 词：圆形孔口多孔板 水力空化 空化数 废水处理 对硝基苯酚 

分 类 号：TV131.34[水利工程—水力学及河流动力学]