德国污水处理技术应用初探何小英

1,,,、。,、。,。22.18200,48km。,1.11km/km25.8m,197984.5%95%,95%,1098%,200090%93％≤DN900mm。2.2,。70%,30％。37000,1400m3,10000,1000m3,,。2.3500～1500mm,,,714mm,798mm,2～4,2,,,,20％,,。3EW,2008－10－261959—。(,330002)〔〕、、。〔〕；；；；；：X703：B：1004-4345(2008)06-0001-03AnApproachtotheApplicationofGermanSewageTreatmentTechnologiesHEXiao-ying(ChinaNerinEngineeringCo.,Ltd.,Nanchang,Jiangxi330002,China)AbstractThepaperdescribesthesewagetreatmenttechnologiesofGermanyfromseveralaspectsofdrainagesystem,interceptionratio，anddesignandcalculationofbiologicalphosphorusandnitrogenremovalsofsewagetreatmentplants，andsummarizestheirapplicationsinChina.Keywordsdrainagesystem;interceptionratio;sewagetreatmentplant;phosphorusandnitrogenremovals;design;application292008612VDN/VT,kgNDN/kgBOD5,t=10~12℃0.20.110.060.30.130.090.40.140.120.50.150.15≤2≥105410℃108/10℃VDN/VT=0.2=0.3=0.4=0.51213151810111316/251EWBOD560g,EWBOD5,,。,,,,。435~80mg/L,10~25mg/L,10~18mg/L,1~2mg/L,,,。(ATV)A131()。A131COD/BOD5≤2,TKN/BOD5≤0.25;,12NO3－NBOD53BOD54θc5X6。4.1NDN/(BOD5)iVDN/VTNDN,BOD5VDNVT。NDN/(BOD5)i:NDN=Nk－Noe－Nme－Ns:Nk,mg/L;Noe,1～2mg/L;Nme,、,,18mg/L,0,;Ns,BOD50.05,mg/L;(BOD5)i5。NDN/(BOD5)i,1VDN/VT。4.2θcθc,:θc=/(d),,2。4.3:Yt＝Y＋YP:Yt,kgVSS/kgBOD5;Y,kg/kgBOD5;YP(),kg/kgBOD5。Y、SSBOD5、,0.52～1.22kg/kgBOD5,:Y=0.6〔SSi/(BOD5)i+1〕－0.072×0.6θc×F/1+0.08θc×F:SSi,mg/L。F=1.072(T-15):T,10℃。:N=QY〔(BOD5)i－(BOD5)e〕/1000:Q,m3/h;(BOD5)e5,mg/L。4.4VT3X(MLSS)。12X,kg/m32.5～3.53.5～4.52.5～3.53.5～4.54.0～5.0()3.5～4.54.0～5.03292··,X。,:VT＝(BOD5)i×Q×θc×Y/X;VT＝VDN＋VN4.5R1＝QR1/Q,R2＝QR2/Q,R＝R1＋R2。,。1,R。,EDN:EDN＝NDN/(NDN＋Noe);:R＝1/(1－EDN)－1:EDN;Noe,mg/L。,2.0。,。,4.0,。,,。4.6P＞5mg/L,;P＜5mg/L,。,0.5～0.75h,。1kgBOD50.025kg。55.1,,,,。,,,,,、、,,。70％,,,、,、。,,。5.2,,,[1]。,,。1～5[2],,,。,,,,。5.3ATV,,,。,(),。CECS149:2003《》。(1)Nme8mg/L。(2),Y(kgMLSS/kgBOD5),VSS,。,,0.3,0.6~1.0。,,,。,,,,,0.8~0.9。(3)X,,,,3。(4),2。,,,。(5),TP2~6mg/L,,,BOD5/TP＞17[3],0.5mg/L,。(6)1～2h,(),(100%),0.5~1h。[1].－(5)[M]..:,2004.[2]GB50014－2006,[S].[3]CECS149－2003,[S].63··