自生动态膜处理高浓度氨氮废水的实验研究_范荣桂

ExperimentonSelf-FormingDynamicMembraneBio-ReactorTreatmentofHighConcentrationAmmoniaNitrogenWastewaterFANRong-gui,HUANGDa-qing,BAIYong-xin,FANGLiao-wei,LIANGHong-xingCollegeofResourceandEnvironmentalEngineering,LiaoningTechnicalUniversity,Fuxin,Liaoning,China(fanronggui@163.com)Abstract—Thenitrifyingcharacteristicinself-formingdynamicmembranewasstudiedintheself-madeexperimentalapparatusinthispaper.Theexperimentalresultsshowedthattheremovalefficiencyofammonianitrogencouldbemorethan80%whentheconcentrationofNH4+-Ninsimulatingwastewaterwasabout100mg/L.thedynamicmembranetreatmentcapacityundertheexperimentalconditionswasabout2.09~4.14kg(NH4+-N)/m2(film)•h.TheexperimentalresultsalsoshowedthattheremovalefficiencyofNH4+-N,SSandCODwereabout95%,95%and87%respectivelywhenthetreatmentwastewaterinexperimentwasactualdomesticwastewater.HRTandinfluentammoniaconcentrationweretwoimportantfactorseffectingthedynamicmembranenitrification,especiallyinthehigherconcentrationsofNH4+-Nwastewatertreatment,theeff