紫外光助O3、H2O2氧化降解炼油废碱水的可行性实验

炼油高浓度有机废碱水是石化行业中很难降解的废水.本实验用光化学氧化技术对其进行了降解研究,比较了紫外光/空气、紫外光/O3、紫外光/空气/H2O2系统的处理效果.结果表明,光化学氧化技术降解此废水是可行的,紫外光可使废水中COD、油、酚的降解率明显提高.当废水中O3的投加量每小时为22 mg/L,或H2O2投加量为1%/L时,UV/O3法与UV/空气/H2O2法的降解效果相近.同时,通过控制O3浓度或H2O2的投加量等条件,可使废水中COD、油、酚和硫化物降解到地方污染物二级排放标准.

A feasible experiment on degradation of refinery basic wastewater by photochemical oxidation

The refinery basic wastewater organic concentration was degraded by photochemical oxidation method.Comparing the effect of UV/air, UV / O 3,and UV/air/ H 2O 2,the result showed that it is feasible,the degradation rates of COD,oil,Ar OH are obviously improved by UV . When the concentration of O 3 is 22 mg/L per hour and the quantity of H 2O 2 added is 1%/L,the effects of UV / O 3 and UV /air/ H 2O 2 are alike, by controlling the experiment condition such as the concentration of O 3, the quantity of H 2O 2 added etc.,the effluent quantity of COD,oil,Ar OH,S 2- can meet the second grade discharge of local standards.