SBR处理养猪场废水研究王磊

246Vol.24,No.6　　西华大学学报·自然科学版JournalofXihuaUniversity·NaturalScience　　200511Nov.2005:1673-159X(2005)05-0043-03　　:2005-05-24　　:　(1980-),,,,。SBR王　磊,付永胜,宋　炜(,610031)　　　:SBR。SBR120mg/l(CaCO3),pH7.0,1～3mg/l,。/,COD75%,98%。,。:;SBR;;　　:X703　　:BStudyonthePiggeryWastewaterTreatmentBasedonSequencingBatchReactorsWANGLei,FUYong-sheng,SONGWei(DepartmentofEnvironmentalScienceandEngineeringofSouthwestJiaotongUniversity,Chengdu610031China)　　Abstract:SequencingBatchReactor(SBR)wasstudiedtochangeandimprovethetreatmentinexistenceofthepiggerywastewater.SBRsystemneedsabout120mg/lalkalinity(accountbyCaCO3)inaddition.InordertoavoidthechokebackofnitritebacteriaandnitrifyingbacteriapHshouldbekeptabove7.0,theDOremainsbetween1～3mg/lSBRandtheprocessrunsatTwo-Partanoxic/aerobicstate.TheremovalrateofCODisabout75%andtheremovalrateofNH3-Nismorethan98%.IftheoxidationpondorhydrophytepondcanbeusedaftertheSBRprocess,thewastewaterwillbedrainedinnocuously.Keywords:piggerywastewater;SBR;nitrification;denitrification　　,、,,,,,。,,4471,76.2,259,367.6,11,9,6100,;COD4.6,COD1.8[1]。,,。,、,,,,。,(SBR),。1　废水水质及处理现状,1,300,,COD、(1)。1　CODcr(mg/l)SS(mg/l)NH3-N(mg/l)pH8000～100003000～5000800～10007.5～8.5《》9060156～9　　,1。,,,,。SBR,。※※※※1　2　实验材料及方法2.1　SBR60L、、。50L;(ACD-009D)2();JB90-D;TDK0310。2。2　SBR2.2　SBR,COD1100～1600mg/l,650～750mg/l,20L,0.4。:(15min)2h+4+2+4+0.5h+0.5h+0.5h。13.5,3500mg/l,20～25。CODcr:;NH3-N:;NO-2-N:α-;NO-3-N:;pH:pH(PHB-3);DO:(JPB-607);MLSS:。3　结果与讨论3.1　,SBR,COD600～800mg/l,250～350mg/l。,C/N,,。,4,COD800～1000mg/l,160～200mg/l。2,COD50%80%,95%(3),,,。3　,,,COD1600mg/l,,27,COD75%,98%(4)。4　44　　　·20053.2　3.2.1　pH及碱度pH,,pH。1g7.08g(CaCO3)[2],600～700mg/l,4～5g/l(CaCO3)。,,400mg/l,pH6.1,,COD(4)。,pH7.5;pH7.0,,pH7.0。pH7.0,20L,120mg/l(CaCO3)。:(1)pH,;(2),COD,。5,,15%,。pH,。5　SBR3.2.2　溶解氧(DO),,1g4.33g,3.22g,1.11g,SRT,0.65g/gCOD[2]。SBR(2),CODSBRCOD5,,1～3mg/l,COD300～350mg/l,COD,COD,7～14mg/l(5)。,0.2～1mg/l,,COD670,15～25mg/l,。2　SBRCODcr(mg/l)(mg/l)1138534675.0%7339.298.7%3118232572.5%70611.298.4%5140034775.2%6888.598.8%7137732076.8%7107.898.9%3.3　SBR,COD。COD50～80mg/l,2～5mg/l,,,。4　结论(1)SBRpH7.0,,20～25,。120mg/l(CaCO3),1～3mg/l,,COD,。(2)SBR,,,,,。　　　[1]C.P.LeslieGrady,Jr.BiologicalWastewaterTreatment[M].:,2003.[2]　,　,.[J].,2002,22(1).[3],,.-UASB-SBR[J].,2002,29(6).[4],,.-SBR[J].,2003,19(5).(责任编辑:周剑华)456　:SBR