UASB反应器处理VC废水的出水回流调控_张静

62　　　给水排水　Vol.35　No.2　2009UASB反应器处理VC废水的出水回流调控张　静　黄群贤　孙忠强(河北科技大学环境科学与工程学院,石家庄050018)　　摘要　对UASB反应器在中温下处理VC废水的工艺流程和设备进行了合理的改进,在容积为300m3的UASB反应器中,以出水回流与高浓度废水混合稀释降低进水CODCr。生产运行效果表明,该工艺提高了进水的总碱度,同时控制反应器水力负荷,提高了反应器的处理能力,并节省了调节pH的用碱量约2t/d和稀释水约230m3/d。关键词　VC废水　UASB反应器　回流EffluentrecirculationcontrolofVCwastewatertreatmentbyUASBreactorZhangJing,HuangQunxian,SunZhongqiang(CollegeofEnvironmentScienceandEngineering,HebeiUniversityofScienceandTechnology,Shijiazhuang050018,China)Abstract:TheprocessandequipmentsofVitaminC(VC)wastewatertreatmentbyupflowanaerobicsludgeblanket(UASB)atmedialtemperaturehavebeeninnovated.InasingleUASBreactorwith300m3flowcapacity,theCODCrcontentwasdilutedbymixingthetreatedeffluentrefluxandhighcontentwastewater.Theoperationresultsshowedthatthisinnovationincreasedthetotalalkalinity,controlledthehydraulicloadofthereactor,improvedthereactortreatmentcapacityandreducedthepHadjustingalkalinityanddilutingwaterconsumption2t/dand230m3/drespectively.Keywords:VitaminCwastewater;UASBrea