2种多级厌氧系统处理高浓度焦化废水张珂

2张　珂(,037043)　　,()()。(pH、CODNH3-N)、。　　　High-concentratedwastewatertreatmentincokefactorybyuseoftwosystemsofmulti-stageanaerobeZhangKe(DatongCoalGasificationCo.Ltd.,Datong037043)Abstract　It'sdemonstratedthattheperformanceofasystemofmulti-stageanaerobewithoutsludgebackmixingismuchbetterthanthatofasystemofmulti-stageanaerobewithsludgebackmixingafterhigh-concentratedwastewatertreatedbythesystemofmulti-stageanaerobewithoutsludgebackmixingandmulti-stageanaerobewithsludgebackmixing.Thesystemofmulti-stageanaerobewithoutsludgebackmixingormulti-stageanaerobewithsludgebackmixingcanresistmuchmoreimpactload(highpHvalue,CODandNH3-Nofhighconcentration),andproducemuchmoremethane.Keywords　cokewastewater;multi-stageanaerobewithoutsludgebackmixing;multi-stageanaerobewithsludgebackmixing:2003-05-13;:2003-06-30:(1964～),,,、。E-mail:[e-mail]　　。,,,,COD,15000mg/L,COD1500～3000mg/L。,,。。1　1.1　　1.1.1　多级厌氧无污泥返混系统3[1,2],1,1,2;2,3;3,。3,,,[3]。1　Fig.1　Equipmentformulti-stageanaerobicwastewatertreatmentwithoutsludgebackmixing1.1.2　多级厌氧有污泥返混系统3,2,1,12;23;3。356Vol.5,No.620046TechniquesandEquipmentforEnvironmentalPollutionControlJun.2004,,,。2　Fig.2　Equipmentformulti-stageanaerobicwastewatertreatmentwithsludgebackmixing1.2　1,1,。,1,,[4]。,。2,96%。,(、),。COD8000～11000mg/L,1,50mL,,2150mL,3250mL,CODpH,。0.6L/h,23,。COD、NH3-N。2　(1)COD:5B-3COD()。(2)NH3-N:。3　3,CODCOD。3　CODFig.3　ComparisonofCODfrommulti-stageanaerobicsystemswithandwithoutsludgebackmixing　　4,NH3-NNH3-N。(t),33COD、NH3-N(p0.01),(1)。1　2CODNH3-NTable1　ComparisonsofCODcontentsandNH3-Nvaluesfromanaerobicsystems　3(mg/L)3(mg/L)tpCOD(n=43)3383.65933.23905.358888.682.650.01NH3-N(n=28)634.30138.97753.51161.892.960.01696　:24　NH3-NFig.4　ComparisonofNH3-Nvaluesbetweenmulti-stageanaerobicwastewatertreatmentwithandwithoutsludgebackmixing　　3,,1,2,,3,。,,,。,,,。3。4　　。(pH、CODNH3-N),。[1]NuriAibar,PepiUrsillo,RichardE.Speeece.Effectofprocessconfigurationandsubstratecomrlexityontheper-formanceofanaerobicprocesses.Wat.Res.,2001,35(3):817～829[2]LarryD.,Benefield,Clifford.,W.Randall.BiologicalPra-lessDesicalforWastewaterTreatment.PublishinGreatBritain,1998[3]R.S.,,..:,1985.301～314[4],..,2003,29(1):35～37705