摘要
采用臭氧催化氧化法处理石化污水排水,考察了催化剂的载体、比表面积、活性组分等对处理效果的影响。结果表明:比表面积大的催化剂处理效果更好;以活性炭为载体的催化剂,其催化氧化效果优于以Al2O3或Si O2为载体的催化剂;多元金属负载的催化剂,催化氧化效果要优于单一金属负载的催化剂,活性组分的催化氧化作用由强至弱依次为:Ti,Ce,Mn(Cu);优选出催化剂HWS 3,在臭氧投加量为30 mg/L,催化氧化反应柱停留时间为30 min的条件下连续运行4 d,污水COD,UV_(254)的平均去除率分别为51.42%,68.73%。
The drainage of petrochemical wastewater was treated by ozone catalytic oxidation method,and the influences of carrier,specific surface area and active components of catalyst on the treatment effect were investigated. The results showed that the catalyst with big specific surface area had a better treatment effect. The catalytic oxidation effect of catalyst with activated carbon as carrier was better than that of Al2O3 or Si O2 as carrier,and loaded multimetal was better than that of loaded single metal. The catalytic oxidation of active components from strong to weak in turn were： Ti,Ce,Mn（ Cu）. Under the conditions of optimized catalyst HWS 3,ozone dosage 30 mg / L,residence time of catalytic oxidation reaction column 30 min,operating continuously for 4 days,the average removal rate of chemical oxygen demand（ COD） and UV254reached51. 42%,68. 73% respectively.
出处
《石化技术与应用》
CAS
2016年第5期410-413,共4页
Petrochemical Technology & Application
基金
中国石油天然气集团公司资助项目(项目编号:2011 E-2408)
关键词
石化污水
臭氧
催化氧化
活性炭
比表面积
活性组分
化学需氧量(COD)
petrochemical wastewater
ozone
catalytic oxidation
activated carbon
specific surface area
active component
chemical oxygen demand（COD）
