1、 l : 2003- 01- 27 “:SE1 S “(40272108);bSv “Te:=(1968- ), o, , q,p V1CPN1 3 F 金春姬1, 佘宗莲1, 高京淑2, 成乐昌2, 金秀生2(1.SZv S, 266003; 21bSvn,bS 604- 714)K1: k? L ,) C C/Wu 3 Ll,1(CPN)l 3r qaQ Y,s , F b1oM: 3;CPN1;Wu ;Fms |: X70311 DS M : A cI|: 1001- 6929(2003)05- 0037- 04Determination of Demand of External Ca
2、rbon Source for BiologicalNitrogen Removal of Wastewater with Low CPN RatioJIN Chun-ji1, SHE Zong-lian1, KO Kyong-suk2, SUNG Nack-chang2, KIM Soo-saeng2(1.Collegeof Environmental Scienceand Engineering, OceanUniversity of China, Qingdao 266003, China;2.Department of Environmental Engineering, Dong-A
3、 University, Busan 604-714,Korea)Abstract: In this study,to achieve nitrogen removal, an intermittent aeration pilot plant was applied to upgrade existing activated sludge system.Through thetest,the impactsof CPNratio on nitrogen removal efficiency anddenitrificationratewere investigated, and denitr
4、ification capacitywasdis-cussed to determinethe demand of external carbon source.Key words: biological nitrogen removal; low CPN ratio; intermittent aeration; external carbon source M ,bS bS tbyN,bSC ) 9 !71/bC ! v C“d,7 O 3E$ B6arZE, 9| 3Eb3B bQb2 , QbQ1 b Ny,bSvs ) i R byN, bS,1gFv ,|vv9F) nbyN,A1
5、 ph rob3 k? L ,) CC/Wu Hb-Qb(Simulta-neous Nitrification-Denitrification,SND) Ll,1l 3Y# F , L= !9nrms4 V L b1 ZE111 kl kl bS g ) V g l“Ll b BOD5 i( (2515 mgPL,K90 mgPL) 4 C byN, gL) ! 7 ?) L,V -) B1 g b nV1bl BOD5 i 4,9 iov, BOD5PTN l2bV1 k Table 1 Influent wastewater characteristics mgPL “S ( “S (B
6、OD5 30.4 128.1 71.7 TN 20.8 131.4 54.2CODCr 88.9 495.6 234.96.7 67.8 29.4TSS 51 432 157.5 TP 0.5 4.7 1.8112 k bS g ) ,y/ k? , m1 Ub Li7(5 m3)a16 5 S Research of Environmental SciencesVol.16,No.5, 2003( 115 m3)aWu ( 416 m3)a( 212m3)FbWu = , H Solenoide valve e ,7O pHORPh,1pH712b ) : C, , !C1 7 SWu b
7、23 29 e ,HRT7h,TN C0105kgP( kg#d)Hq/, !60min ,60minWu , WTgF J?(99%)bJ?gF ! 50,120,190,250mgPL 4 bM1( COD91 V U, )313, 511,713911b1)Li7;2);3)Wu ;4);5)m1 Wu k UiFig.1 Schematic diagram of intermittent aeration pilot plant113 kZE “|aWu ,Gv S5Standard Methods For the Examination of Water andWastewater6
8、1#bS5 kZE62 ,s 9CODCr, COD,TN,NH3- N,NO2- N,NO3- N,TSS,VSS,SV30 “,SpH,ORP,DO b2 T) 211 CPN1r qm2A U CPN1TN “ q iYb “CPN19F,9 “ q5914%486%, 9 i18 mgPLh8mgPL,vv “S 20mgPL,7 ONO3- N i9V915mgPL h016mgPLbgF W, i111 210 mgPLS =,bQr q94%bTBZ A U gF bQ T,BZ gFJ? ? Whb(ORP) 3$T eSbTA U:CPN1 F 3 HORP 4T eSb_
9、ORP,ggF =ORPM+bm3A U CPN1Hq/ WORPM wLbm2 CPN1 9r qYFig.2 TN removal efficiency and effluent TNwith different CPN ratioCPN:1) 313;2) 511;3) 711;4) 911m3 CPN1Hq/ORPoFig.3 Temporal variation of ORP indifferent CPN ratio conditionCPN1313,511, 713911Hq/, HORPsY165, 112, 141, 138 mV,A U HORPCPN1 v1 b ORP,
10、3l? ) ORPbr qT,b 7 S HORPS80 200mVMb W, 7 S15min =ORP$ /,r70 126mV,V TJ?g , =-? 3$ Mb15min,CPN1313511 HORP 15min20 40mV MbCPN1713911 H,45 min,ORPM t -2CPN1 f M,7V45 min ,ORPr70 mV, H- 100- 137 mVbORPM+H4f,Qb HORP- 100 - 200 mVK aSb,3BenKoopmann59; Qb7NO3- Ni , HORP$ /b CPN1v7 H38 S 16 V I n ORPM wL|
11、Q1 eb212 CPN1Q Y 3,CPN1Q (Specificdenitrification rate,SDNR) %Tb V2 U,“CPN19F,Q 2166 mgP(g#h) 64112mgP(g#h),9F 115bD6Q M1 V,B 3 , BJ? HQ bV2 CPN1Q YTable 2 Effect of CPN ratio on denitrification rateCPNQ P(mg#g- 1#h- 1)3.3 2.665.1 3.637.3 4.049.1 4.123 H / T9 Q (R)7 :R = 0103( FPM)+ 0.029 1128 (1)T(
12、1) BardenphoB, 3 H,9 Q T,B Wu Q l T 8b7 LQ 1 T(1)9 v(V3) , 3 PF) )J? v bV3 FPMM1Q Table3 SDNR as a function of anoxic FPM ratiokgP(kg#d) FPM L9 0.28 0.066 0.0480.41 0.087 0.0530.54 0.097 0.0580.68 0.100 0.063213 K aF H “ h 1 b V !9r q, 1F, V K ag b J?K ag ,) CPN1 1“(m4)bh (SCOD)BOD5V Ub“CPN1V313GQ9F
13、511,713911,SCODM1 ,$ “ h1(TNPSCOD)Ch t b7BOD5M1 ,TNPBOD5,CPN1511 HrK0126,CPN1911 H0120bV CPN1911 H, V “ M1, Vbm4 CPN1 1“Fig. 4 Relationship between CPN ratio anddenitrification capacity8 I nbQr qaQbQ aTN b1 p(20mgPL/)#nZ y , Hq/ V p) r qF 120 mgPL(J?9), SCODPTN15Pb.d 3Q : I n%, 1mg NO3- N12147 mgJ?(
14、MCODCr3171mgPL) , L= p95%r q,g 3mgJ?(MCODCr415 mgPL)b XJ? L= YvbNyberg9J? ( g COD “NO3- N 9,/)0121, IAWQ C ASM- 11001103, Adams115401107,John12T01035 01071b 6BZ , Y.Argaman13J.Decker14 01170116 0126( g BOD59)bV T V, “ aF aHq7M, VW S M L=b3 a. “CPN19F,9 “ q5914%486%, 9 i18mgPLh 8mgPL, 20mgPL b 1 p,gF
15、 W i111 210 mgPL,bQr q94%,A UgFbQ Tbb.CPN1713911Hq/,NO3- N iKl HORP 7 S$ /, HORP- 100- 137mVb CPN1v7 H VI n ORPM wL|Q1 eb395 =:CPN1 3 F c. “CPN19F,Q 2166mgP(g#h) 64112mgP(g#h),9F 115bd.Hq/ V p) r qF 120 mgPL(J?9), SCODPTN15Pb ID: 1 APHW,AWWA,WPCF.Standard methods for the examination of waterandwaste
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19、 WWJr.Nitrification designapproachfor highstrengthammoniawastewaterJ. WPCF,1977,49:413- 421.12 John Regan, Ben Koopman, Spyros A, et al. Ful-l scale test of methanoladdition for enhanced nitrogen removal in a Ludzack-Ettinger process.J.Water EnvironRes,1998,70(3):376- 381.13 Yerachmiel Argaman.Energ
20、etics of single-sludge nitrogen removalJ.Water Res,1985,19(2):1505- 1513.14 Decker J. Untersuchungenzur nitrifikation unddenitrifikation in ein-undzweistufigen belebungsanlagen J. Korrespndenz Abwasser, 1985, 92(39):197- 202.2004 M5 65 6 Zv ,/ ,Y$ 5 / b1985M7 , SB Z bS = 7?b 1 )S / a S/ a45 # Llv5;# HQS = 5 L/ S/;w S TT;1S = pa/ h b1 = : 1 S/a8 a)aT/ #n aTw# ,5VaS a a S/e, 5 a NaSa, / , e# SN b1: SV Y T a #M1 5T,1/ a S a5 #vn = 3b5 6?|:28- 298, , 6P , M36, 30 b, h_ b EV ,g VI “ |bI : 2 g B 1| ZvI :210098 “:(025)3786642 .:( 025)37873810Q:bhhhu.edu. cn40 S 16
