超声波协同紫外光催化降解乙酰苯胺废水  

Degradation of Acetanilide Wastewater by Ultrasonic and Ultraviolet Synergetic Catalytic System

作　　者：钟先锦[1] 吴军伟[1] 王文宇 方丽波 王德顺 ZHONG Xian-jin;WU Jun-wei;WANG Wen-yu;FANG Li-bo;WANG De-shun(Department of Biology,Hefei Vocational and Technical College,238014,Chaohu,Anhui,China;Chaohu Sewage Treatment Management Office,238008,Chaohu,Anhui,China)

机构地区：[1]合肥职业技术学院生物工程学院,安徽省巢湖市238014 [2]巢湖市污水处理管理处,安徽省巢湖市238008

出　　处：《河北水利电力学院学报》2022年第4期49-53,66,共6页Journal of Hebei University Of Water Resources And Electric Engineering

基　　金：安徽省教育厅自然科学重点项目(KJ2020A0980);安徽省教育厅自然科学重点项目(KJ2020A0981);合肥职业技术学院自然科学重点项目(202014KJA008);安徽省职业与成人教育学会项目(azcg190)。

摘　　要：以纳米TiO_(2)为催化剂,采用超声波联合光催化降解水溶液中乙酰苯胺,考察了影响乙酰苯胺降解效率的多种因素,结果表明,反应器中纳米TiO_(2)的浓度为0.08 g/L,乙酰苯胺的浓度0.25 g/L,溶液pH分别为6.00,光照强度为100μW/cm^(2)、回流泵流量1 L/min,超声波振动棒频率15 kHz,超声波功率强度0.33 W/cm^(2),溶液COD去除效率最高达85.31%。超声波光催化联合降解体系具有协同效应,反应过程服从动力学一级反应。Acetanilide in water was degraded by ultrasonic wave(US)-ultraviolet light(UV)synergetic catalytic system with TiO_(2) nanoparticles as catalyst.Various factors affecting the degradation efficiency of acetanilide were investigated.The results showed that the concentration of nano-TiO_(2) was 0.08g/L and the concentration of acetanilid-e was 0.25 g/L,solution pH 6.00,light intensity 100μw/cm^(2),reflux pump flow 1L/min,ultrasonic vibrator freque-ncy 15kHz,ultrasonic power intensity 0.33 w/cm^(2),acetanilide degradation efficiency up to 85.31%.The combined degradation system of ultrasonic wave and photocatalysis has synergistic effect,and the reaction process followed the kinetic first-order reaction.

关 键 词：超声波 光催化 纳米TiO_(2) 乙酰苯胺 

分 类 号：X703[环境科学与工程—环境工程] TV213.4[水利工程—水文学及水资源]