大连新港含油废水处理改造工程实例

大连新港含油废水处理改造工程实例大连新港含油废水处理改造工程实例吕炳南1杜彦武1赵兵2(1哈尔滨工业大学市政环境工程学院,哈尔滨150006;2大连新港港务局,大连116601)摘要介绍了大连新港含油废水处理厂的改造工程。两年的稳定运行表明,采用除油罐-预曝气斜管隔油池-贮水调节池-生物滤池工艺处理含油废水,在废水含油量为1000～3000mg/L时,最终处理出水含油量小于5mg/L。预曝气斜管隔油池具有气浮和强化重力分离的双重作用,表面负荷可达4m3/(m2·h),除油效率高。改造工程总投资15314万元,盘活了2个5000m3的贮水罐(资产1200万元)和原斜板隔油池的占地500m2。关键词含油废水预曝气斜管隔油池改造InnovationofoilwastewatertreatmentinnewharborinDalianLuBing2nan1,DuYan2wu1,ZhaoBing2(1.SchoolofMunicipal&EnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China;2.XingangHarborBureauofDalian,Dalian116601,China)Abstract:TheinnovationofoilwastewatertreatmentinnewharborinDalianhasbeenprovedbynormaloperationovertwoyears.Itisevidentthattheadoptedprocessconsistedofoil2separationtankandpre2aeratedtubeoil2waterseparators,equalizationbasinandbio2filterishighefficientforoilwastewatertreatment.Twoyearsstablerunningshowsoilconcentrationineffluentislessthan5mg/Lwhenitis1000mg/Lto3000mg/Linrawwastewater.Pre2aeratedtubeoil2waterseparatorshavetheenhancedfunctionofflotationandg