缺氧—好氧—催化臭氧氧化工艺处理石化厂含盐废水  

Treatment of Salty Wastewater in Petrochemical Plant by A/O-Catalytic Ozone Oxidation Process

作　　者：龚小芝[1] 邱小云[1] 赵辉[1] 刘正[1] 万国晖[1] 侯秀华[1] 

机构地区：[1]中国石化北京化工研究院环保所,北京100013

出　　处：《化工环保》2015年第3期284-287,共4页Environmental Protection of Chemical Industry

摘　　要：采用缺氧—好氧—催化臭氧氧化工艺处理某石化厂的含盐废水.实验结果表明：在进水COD为200～350mg/L的条件下,经生化处理后的出水COD稳定在50～60 mg/L,COD去除率稳定在75％左右;在臭氧投加量为4.5g/L、V（催化剂Ⅱ）∶V（废水）=1.5∶1的条件下,进行连续催化臭氧氧化后出水COD稳定在20 mg/L以下,COD去除率大于70％,满足DB 61/224-2011《黄河流域（陕西段）污水综合排放标准》.表征结果显示,催化剂表面含有铜元素,比表面积为250.815 m2/g,吸水率为60.9％,经过滤可去除废水中残留的催化剂.The salty wastewater in a petrochemical plant was treated by A/O-catalytic ozone oxidation process.The experimental results show that：When the influent COD is 200-350 mg/L,the bio-treated effluent COD is stable at 50-60 mg/L and the COD removal rate is about 75％;Under the catalytic ozone oxidation conditions of ozone dosage 4.5 g/L and V（catalyst Ⅱ） ∶ V（wastewater） =1.5 ∶ 1,the effluent COD is below 20 mg/L and the COD removal rate is over 70％,which meets the local discharge standard of DB 61/224-2011.The characterization results show that：The catalyst is Cu-covered with 250.815 m2/g of specific area and 60.9％ of water absorptivity;The catalyst remained in the wastewater can be removed by filtration.

关 键 词：含盐废水 催化臭氧氧化 深度处理 

分 类 号：X703[环境科学与工程—环境工程]