UASB接触氧化法处理高浓度制糖废水应用实例邓智英

201812·196·(510760)[]CODBOD+UASB+(GB21909-2008)[]UASB[]X5[]A[]1007-1865(2018)12-0196-02UASB+ContactOxidationProcessforTreatmentofHighConcentrationSugarWastewaterDengZhiying(MinistryofEnvironmentalProtectionGuangzhouWanludaGroupCo.,Ltd.,Guangzhou510760,China)Abstract:Inrecentyears,thesugarindustryhasmadegreatprogressincleanproductionandpollutionprevention.However,thesugarindustryisstilloneoftheindustrieswithrelativelyseriousorganicpollutioninthelightindustry.Thetotalamountofwastewaterandthetotalamountofpollutantsstillremainsubstantial.Thisarticleintroducesasugarwastewatertreatmentapplicationwhich,accordingtothecharacteristicsofhigherconcentrationofCODandBODinandgoodbiodegradabilityinthewastewater,utilizedthe“Airfloation+UASB+contactoxidation”process.Theprocesshasbeenworkingstablysinceitwasputintooperation,andallofthewaterindicesmeetthelimitsofwaterpollutantemissionsofnewly-builtenterprisesinthe“EmissionStandardforWaterPollutantsintheSugarIndustry”(GB21909-2008).Keywords:sugarwastewaterUASBcontactoxidationapplication[1]1[2]CODBOD[3]1300m3/d1000m3/d300m3/d24h3(GB21909-2008)11Tab.1Thecomparisonofwaterqualitybetweeninletandoutlet)22.1CODBOD11Fig.1Thetechnologyflowchartoftheprocess2.2(1)(2)UASBUASB(3)UASBUASBCOD(4)[]2018-05-20[](1985-)20181245374·197·20%(5)UASB2.3(1)(2)UASB(3)UASB2.422Tab.2Theprofileofmainconstructions3(1)10433Tab.3Themainmonitoringdata20162(GB21909-2008)(2)7502704802.11/1.41/0.5/0.2/4(1)UASBCOD90%(2)UASB(3)30%~35%[1][J]2008417-23[2][J]201129(4)7-10[3][J]200621(10)74-77(194)pHCa2+pH7.2~7.5CO2Ca2+CO2CaCO32#A/OPAMBRPAMBRCODPAMBR5.21#50min6500m34.5h2.0h1.3m3/m2·h2#25minA/O17118hA/O1719hMBR2h78.4kPa1.5h6MBRMBRMBRMBRMBR[1][J]20126(11)3855-3860[2]-MBR[J]201711(8)4535-4541[3][J]201838(3)1040-1048