超声强化臭氧传质及其氧化降解邻苯二甲酸二丁酯  

Ultrasonic-Assisted Enhancement of Ozone Mass Transfer and Oxidative Degradation of Dibutyl Phthalate

作　　者：张欢 高春阳 胡海杰 张洪利 宋乃建 ZHANG Huan;GAO Chunyang;HU Haijie;ZHANG Hongli;SONG Naijian(College of Chemistry and Material,Weinan Normal University,Weinan Shaanxi 714099,China;Key Laboratory of Environmental Pollution Control Technology and Reservoir Protection for Oil and Gas Fields in Shaanxi Province,Xi’an Shaanxi 710065,China;CNPC Research Institute of Safety and Environment Technology,Beijing 102206,China;State Key Laboratory of Petroleum Pollution Control,Beijing 102206,China)

机构地区：[1]渭南师范学院化学与材料学院,陕西渭南714099 [2]陕西省油气田环境污染控制技术与储层保护重点实验室,陕西西安710065 [3]中国石油集团安全环保技术研究院有限公司,北京102206 [4]石油石化污染物控制与处理国家重点实验室,北京102206

出　　处：《当代化工》2024年第9期2054-2060,共7页Contemporary Chemical Industry

基　　金：陕西省教育厅科研计划项目资助(项目编号:23JK0443);陕西省油气田环境污染控制技术与储层保护重点实验室项目(项目编号:XSYU-HJ-2023003);渭南市科技计划项目(项目编号:2022ZDYFJH-80)。

摘　　要：对超声强化臭氧传质及其氧化降解邻苯二甲酸二丁酯(DBP)进行了研究。探究体系温度、操作pH、臭氧投加量、臭氧进气流速、DBP初始质量浓度及超声功率对臭氧传质及DBP降解效能的影响,优化臭氧传质及其氧化降解DBP的工艺。综合考虑实验结果及能耗,在体系温度为293.15 K、操作pH为7、臭氧质量浓度为33.12 mg·L^(-1)、臭氧进气流速为300 L·h^(-1)、超声功率为1 250 W的条件下,可高效处理DBP初始质量浓度为200 mg·L^(-1)的溶液,此时溶解臭氧质量浓度可达1.268 4 mg·L^(-1),臭氧表观传质系数(KLa)可达0.558 7 min^(-1),DBP去除率可达54.71%。The ultrasonic-enhanced mass transfer of ozone and its oxidative degradation of dibutyl phthalate(DBP)were investigated.The effects of system temperature,operating pH,ozone dosage,ozone inlet flow rate,initial DBP mass concentration,and ultrasonic power on the mass transfer of ozone and the degradation efficiency of DBP were examined to optimize the process.Based on experimental results and energy consumption considerations,optimal conditions for efficient treatment were determined as follows:the system temperature was 293.15 K,the operating pH was 7,the ozone dosage was 33.12 mg·L^(-1),the ozone inlet flow rate was 300 L·h^(-1),the ultrasonic power was 1250 W.Under these conditions,the solution with initial DBP mass concentration of 200 mg·L^(-1) could be effectively treated.At this point in time,the dissolved ozone mass concentration reached 1.2684 mg·L^(-1);the apparent mass transfer coefficient(KLa)for ozone was measured at 0.5587 min-1;the removal rate of DBP reached 54.71%.

关 键 词：废水 传质 氧化 

分 类 号：TQ085.4[化学工程] X703.1[环境科学与工程—环境工程]