A2C表曝型氧化沟工艺设计计算与应用王文斌

工程设计GONGCHENGSHEJI王文斌,等:A2/C表曝型氧化沟工艺设计计算与应用《》　2007212143　　:2007-02-09;:2007-03-18:863“”(2004AA601060):(1981-),,,;(1957-),,,,.A2/C王文斌1,　王　淦1,2,　汪家权1(1.,　230009;2.,　230088)　:+A2/CA2/O,。A2/O,。,A2/C。,,。:A2/C;//(A/A/O);:X703.1　　　:A　　　:1673-5781(2007)02-0143-03　　,,、、、,。,A2/C,BOD5、COD、SS,。1　,4×104m3/d。[1][2]B,、1。1　、CODcr/(mgL-1)BOD5/(mgL-1)NH3-N/(mgL-1)SS/(mgL-1)　25015030200　≤40≤20≤10≤20TN/(mgL-1)TPP/(mgL-1)pH/(L-1)　3846～9104　≤20≤16～91042　,,A2/C[3]。①,m(BOD5)/m(COD)=0.60.45,。②m(BOD5)/m(TKN)m(BOD5)/m(NH3-N)=54,。③m(BOD)/m(TP)=37.520,。1。1　3　A2/C3.1　A2/CCarrou-sel,Carrousel(),、,2。,、。,、、,。工程设计GONGCHENGSHEJI王文斌,等:A2/C表曝型氧化沟工艺设计计算与应用144　　《》　2007212A2/C,--,、[4～6]。2　A2/C3.2　3.2.1　厌氧池容积计算,[7]HRT1～2h,1.5h,Q=833.3m3/h,:V=Q×HRT=833.3×1.5=1250m3。3.2.2　氧化沟主体(含前置反硝化区)容积计算(1)[8,9]:①BOD520mg/L,BOD:BOD=0.7×Ce×1.42(1-e-0.23×5)=13.6mg/L,,CeBOD5(mg/L)。ΔBOD:150-(20-13.6)=143.6mg/L。②(),θC:θC=κ/(1/μ0)。,μ0,μ0=0.47e0.098(t-15)(C(N)/(C(N)+10(0.05×t-1.158)))(DO/(K0+DO)),C(N)NH3-N10mg/L,DO=2mg/L,K01.3。κ,,2.0～4.0,3.3。θC16d(t12℃)。③V1:V1=(YθCQΔBOD)/(MLVSS(1+KdθC))=4465.7m3。Q20000m3/d,Kd0.06,Y0.5VSS/kgBOD,(MLSS):3500mg/L,f=VSS/MLSS=0.75。:t1=24V1/Q=5.6h。(2)[10]:①t:12℃,20℃Ndn0.03/(kgNO-3-N(kgVSSd)-1),θ1.08,:Ndn(t)=Ndnθ(t-20)=0.022/(kgNO-3-N(kgVSSd)-1)。②ΔX:ΔX=(YQΔBOD)/(1+KdθC)=762.65kg/d。,12.4%,762.65×0.124=94.57kg/d,ρ(N)4.75mg/L,,NO3-N(N1)=30-10-4.75=15.25mg/L,:ΔN=QN1=305.0kg/d。,TNo、TNe、。③:ΔXdn=ΔN/Ndn(t)=13863.6kg/d。:V2=ΔXdn/MLVSS=5281.4m3。:t2=24V2/Q=6.3h。30%,6.3×0.3=1.9h。5281.4×0.3=1584.4m3。(3):():V=V1+V2=9747.1m3。:t=t1+t2=11.9h。4　,A2/C,、。,、[11]。,,,A2/OA2/C,、、,A2/C。,3。3　:、1h、3h、6h。,,6h,COD(≤40mg/L)。,29.9%。,,,1.47h、2h、4h,工程设计GONGCHENGSHEJI王文斌,等:A2/C表曝型氧化沟工艺设计计算与应用《》　2007212145　　、。4h,,,37.8%,。1.33h、4.67h、4h,。、,,,45.9%,。24。2　mg/L　CODcrNH3-NTNTPSS0.7580.9350.2990.3660.6880.7950.8970.3780.2450.7670.8150.9390.4590.5460.6964　1～35　　　(1),COD、TN、SS,。(2),4h;,,,,,(4.5h)。(3)(1.0mg/L),、,。,,。(4)(811),,,。〔〕[1]　DB44/26-2001,[S].[2]　GB18918-2002,[S].[3]　CECS112:2000,[S].[4]　,,,.Carrousel2000[J].,2004,(17):15-16.[5]　G,A.[M]..:,1988.[6]　AnastasiosIStamou.Modelingofoxidationditchesusinganopenchannelflow1-Dadvection-dispersionequationandASM1processdescription[J].WaterScienceandTechnology,1997,36(5):269-276.[7]　,.Carrousel[J].,2005,(17):138-140.[8]　,,.A2/O[J].,2002,20(3):17-20.[9]　,.()[M].:,2000.[10]　　.[J].,2005,87(15):158-159.[11]　　,　,,.AAO[J].,2004,20(9):53-55.(124)(2),。,,,。〔〕[1]　,,,.[M].:,2000.[2]　,　,,.()-()[J].,2002,21(1):43-47.[3]　.[J].,2003,1(3):40-42.[4]　.[M].:,2002.[5]　,.[J].,1999,21(5):638-641.[6]　,,.[M].:,1999.[7]　.[M].:,2003.