低能耗、高效率的无泵水力空化联合臭氧降解罗丹明B  

Degradation of Rhodamine B by Economical and Efficient Hydrodynamic Cavitation without Pump Combined with Ozone

作　　者：冯中营 吴胜举[2] 王烽宇[3] 朱开金 王子荣 赵婷婷 FENG Zhongying;WU Shengju;WANG Fengyu;ZHU Kaijin;WANG Zirong;ZHAO Tingting(Department of Science,Taiyuan Institute of Technology,Taiyuan 030008,China;College of Physics and Information Technology,Shaanxi Normal University,Xi'an 710119,China;Shanxi Wei'an Environmental Protection Technology Co.,LTD,Taiyuan 030012,China;Department of material engineering,Taiyuan Institute of Technology,Taiyuan 030008,China)

机构地区：[1]太原工业学院理学系,山西太原030008 [2]陕西师范大学物理学与信息技术学院,陕西西安710119 [3]山西卫安环保科技股份有限公司,山西太原030012 [4]太原工业学院材料工程系,山西太原030008

出　　处：《水处理技术》2023年第5期110-113,119,共5页Technology of Water Treatment

基　　金：国家自然科学基金项目(10474061;10074042);山西省高等学校科技创新项目(2020L0628);太原工业学院(后备)学科带头人项目;太原工业学院引进人才科研资助项目(2022KJ072)。

摘　　要：采用低能耗、高效率的无泵水力空化装置联合臭氧对50 L罗丹明B溶液进行降解,使用功率仅为230w的电动机驱动自制螺旋桨和孔板水力空化装置。单独水力空化的降解效果非常低,臭氧与水力空化联合处理效果较好。臭氧的最佳流量为2 L/min,臭氧过多会导致气泡过多,抑制水力空化。臭氧流量为2 L/min,罗丹明B初始浓度分别为4、6、8、10 mg/L时,分别经过4、5、6、7 min后降解率接近100%。螺旋桨搅拌不仅促进了臭氧的利用,而且螺旋桨和孔板诱导的水力空化在联合降解中也发挥了重要作用。臭氧-无泵水力空化联合技术避免了大功率水泵的使用,具有能耗低、降解率高、处理能力大等优点,在污水处理中具有良好的实际应用前景。The 50 L Rhodamine B solution as organic wastewater was degraded by economical,simple,and efficient hydrodynamic cavitation(HC)combined with an ozone device.A self-made orifice plate induced the HC and propeller driven by an electromotor with 230 W power.The degradation conversion was minimal using the individual HC.The combined ozone and HC were superior for the treatment of the solution.The optimum flow rate of the ozone was 2 L/min,and too much ozone brought too much gas bubbles and inhibited the HC.When the flow rate of the ozone was 2 L/min,the conversion reached close to 100%after 4,5,6,and 7 min for initial concentrations of 4,6,8,and 10 mg/L,respectively.Propeller agitation promoted ozone utilization,and propeller and orifice plate-induced HC played an important role in the combined degradation.Avoided the use of high power pump,the combined ozone and HC technique showed an excellent prospect of practical application in sewage treatment due to the low energy consumption,high degradation rate,and large processing capacity.

关 键 词：罗丹明B 水力空化 臭氧 降解 

分 类 号：X703[环境科学与工程—环境工程]