文丘里管与孔板组合降解苯酚废水研究  

Study on the degradation of phenol wastewater by the combination of Venturi pipe with orifice plate

作　　者：王永杰[1] 晋日亚[1] 孔维甸 张天舒[2] 

机构地区：[1]中北大学化工与环境学院,山西太原030051 [2]南京农业大学环境工程学院,江苏南京210095

出　　处：《现代化工》2017年第4期160-163,共4页Modern Chemical Industry

基　　金：山西省科技攻关项目(2015031020)

摘　　要：利用水力空化技术,处理模拟废水苯酚,以文丘里管与不同的孔板组合作为空化装置。研究运行时间、入口压力、孔口排布方式及空化数对苯酚降解率的影响,并对苯酚降解的中间产物进行紫外-可见吸收光谱分析,初步判断降解过程中形成的产物性质。研究结果表明,随着时间的延长,苯酚的降解率先增大后趋于稳定,60 min时达到最大降解率;存在最佳入口压力,为0.4 MPa;孔口排布方式对苯酚降解率有较大影响。紫外-可见吸收光谱分析表明,苯酚降解过程的产物可能为酮类或醛类、苯二酚以及脂肪酸类物质。Using the technique of hydraulic cavitation,the treatment of phenol in simulated wastewater is performed by combining Venturi tube with different orifice plate as the cavitation device. The influences of operation time,entrance pressure,orifice arrangement and cavitation number on the degradation rate of phenol are studied. The intermediate products are analyzed by ultraviolet-visible absorption spectrum. The results show that with the increase of time,the degradation of phenol is firstly increased and then tends to be stable. After 60 min,the maximum degradation rate can be reached. There is the best entry pressure for 0. 4 MPa. The orifice arrangement has great effect on the degradation rate of phenol. The ultraviolet-visible absorption spectrum analysis shows that the products of oxidized phenol possible are ketones or aldehydes,benzenediol and fatty acid.

关 键 词：水力空化 文丘里管/孔板组合 苯酚 

分 类 号：X703.1[环境科学与工程—环境工程]