煤化工近零排放臭氧催化氧化技术的应用研究  

Study on ozone catalytic oxidation technology for near zero emission in coal chemical industry and its application

作　　者：田磊 唐甜 孙雪 TIAN Lei;TANG Tian;SUN Xue(Shaanxi Chemical Industry Research Institute Co.,Ltd.,Xi’an 710054,China;Department of Environmental Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]陕西省化工研究院有限公司,陕西西安710054 [2]西安交通大学环境科学与工程系,陕西西安710049

出　　处：《应用化工》2024年第12期3033-3036,共4页Applied Chemical Industry

基　　金：陕西省技术创新引导专项基金(2018ZKC-155);陕西省重点研发计划项目(2022GY-174)。

摘　　要：针对煤化工高盐废水近零排放三个不同浓缩段高盐废水进行臭氧催化氧化实验评价,并以此指导工程设计,最后对工程实施结果进行全面分析。结果表明:煤化工高盐废水中初始有机污染物(COD)含量是臭氧催化氧化最主要影响因素,选定O/C比2∶1,反应时长3 h进行工程化设计,经工程化运行实际进水COD 296~519 mg/L时,平均脱除率为44.9%,运行成本为10.3元/m^(3)。提出对高盐废水零排放有机污染物脱除或对特征污染物指标的限定将是打通煤化工副产品其他行业流通的关键。This study evaluated the ozone catalytic oxidation experiments of wastewater in three different concentration sections for nearly zero emissions of coal chemical industry.The results were used to guide engineering design,and a comprehensive analysis was conducted on the implementation.The results showed that the initial organic content is the primary influencing factor in ozone catalytic oxidation.By selecting an O/C ratio of 2∶1 and a reaction time of 3 h for engineering design,the actual average removal rate was 44.9%when the actual influent COD was 296~519 mg/L.The operational cost was 10.3 yuan/m 3.It was also proposed that the removal of organic pollution or the requirements for characteristic pollutant indicators for zero-emission high-salt wastewater will be the key to the circulation of other industries of coal chemical by-products.

关 键 词：煤化工 近零排放 臭氧催化氧化 高盐废水 

分 类 号：TQ028.17[化学工程] TE992.2[石油与天然气工程—石油机械设备]