基于臭氧氧化法的柠檬酸废水深度处理工艺研究  

The Advanced Treatment Technology of Citric Acid Wastewater Based on Ozone Oxidation

作　　者：雷虹 刘光辉 宋淑美 雷佳明 LEI Hong;LIU Guanghui;SONG Shumei;LEI Jiaming(Ecological Environment Monitoring Center of Laiyang,Yantai 265299,China;Environmental Enforcement Team of Laiyang,Yantai 265299,China;Environmental Engineering Consulting and Design Institute Co.Ltd.of Yantai,Yantai 264010,China;School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 265520,China)

机构地区：[1]烟台市莱阳环境监控中心,山东烟台265299 [2]烟台市莱阳环境执法大队,山东烟台265299 [3]烟台市环保工程咨询设计院有限公司,山东烟台264010 [4]青岛理工大学环境与市政工程学院,山东青岛266520

出　　处：《鲁东大学学报（自然科学版）》2024年第4期319-324,377,共7页Journal of Ludong University:Natural Science Edition

基　　金：山东省自然科学基金面上项目(ZR2023MD062)。

摘　　要：柠檬酸工业废水属高浓度有机废水,经生化处理后的二级出水仍然含有一定浓度的COD和色度。为消除其可能会造成的环境影响,本文采用臭氧氧化法处理柠檬酸二级处理排水,并通过正交试验法确定了该工艺最佳运行参数。结果表明,在接触时间30 min、pH值为10、温度27℃的工况下柠檬酸二级废水的COD去除率和脱色率最高,分别达到88.5%和96.0%。The wastewater from citric acid industry belongs to high concentration of organic pollutants,and the secondary effluent treated with biochemical method still contains certain level of COD and chroma.To eliminate their threats to the environment,this work tried to treat the secondary effluent of citric acid wastewater with ozone oxidation.The optimal technical parameters were determined through orthogonal experiment.The result showed that the COD removal rate of citric acid wastewater was 88.5%,and the decolourization ratio attained 96.0%under the optimized conditions of contact time of 30 min,pH of 10,and temperature of 27℃.

关 键 词：柠檬酸废水 臭氧氧化 正交试验 动力学 

分 类 号：TQ921.1[轻工技术与工程—发酵工程]