臭氧催化氧化技术在焦化废水处理升级改造中的应用实践
Application practice of ozone catalytic oxidation technology in upgrading and modification of coking wastewater treatment process
陈文虎 1闫忠生1
作者信息
- 1. 山西安泰集团股份有限公司,山西 介休 032000
- 折叠
摘要
为提高焦化废水处理出水水质,山西安泰集团股份有限公司采用臭氧催化氧化技术对原A2O废水处理工艺进行了升级改造.分析了臭氧催化氧化处理焦化废水的机理;介绍了升级改造的工艺流程;通过工艺调试考察了臭氧投加量、氧化时间及pH值对废水中COD的降解效果,确定最优工艺条件为:氧化时间 45 min,臭氧投加量70 mg/L～90 mg/L,pH值 7～9;在最优工艺条件下,焦化废水出水COD长期稳定在 80 mg/L以下,COD降解率在 40%左右.
Abstract
To improve the quality of effluent water in the coking wastewater treatment,in Shanxi Antai Group Co.,Ltd.,the original A2O wastewater treatment process was upgraded with the ozone catalytic oxidation technology.The mechanism of ozone catalytic oxidation treatment of coking wastewater was analyzed,the process of upgrading and transformation was introduced,the effects of ozone dosage,oxidation time and pH level on the degradation of chemical oxygen demand(COD)in the wastewater were investigated through process adjustment.The optimal process conditions were established as follows:oxidation time of 45 minutes,ozone dosage ranging from 70 mg/L to 90 mg/L,and pH level maintained between 7 and 9.Under these optimal conditions,the COD level in the treated coking wastewater effluent consistently remained below 80 mg/L over an extended period,achieving a COD degradation rate of approximately 40% .
关键词
焦化废水/升级改造/臭氧催化氧化/最优工艺条件/COD降解率Key words
coking wastewater/upgrading and modification/ozone catalytic oxidation/optimum process condition/COD degradation rate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据