采用AO内循环生物脱氮技术处理焦化废水的实践体会潘耀祖

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Vol.27,No.6,2008,、、,,,,、、,、。1.1、、。90×104t/a,,102t/h,,,120t/h。,、,HPE,,30~35m3/h,10m3/h。1.2、、、、、、。[1],3:;、;。[2]1450。[3][4],,、、、、,COD。,[5-6]。,A/O()1,2(1.,030002;2.,030012),A/O。,COD、、SCN-、NH3-N95.1%,99.97%,99.23%,99.05%,、、、。A4/0:X703.1:B:1009-0177(2008)06-0042-04ByA/O(theCycle)andBiologicalNitrogenRemovalTechnologytoTreatCokingWastew-aterResearchandPracticePANYao-zu1,CAIEr-shan2(1.ShanxiVincentChinaConstructionDesignandResearchInstitute,Taiyuan030002,China;2.ShanXiLimitedcompanyofRapidlySavingEnergyEngineering,Taiyuan030012,China)AbstractShanxicokinggroupLingshiStarcokingwastewatertreatmentprojectasanexample,theuseofA/Obiologicalnitrogenremovaltechnologytotreatwastewatercokingthepracticeandexperience.Long-termoperatingresultsshowthattheprocessofCOD,phenol,SCN-,NH3-Nremovalratereached95.1%,99.97%,99.23%,99.05%more,isasafe,economic,energysaving,convenientway.KeywordscokingwastewaterA4/Obiologicalnitrogenremovalprocessbiologicalandchemicaltrainingandstartofdebugging[]2008-07-05[](1948-),,。:13700519650;E-mail:pycdt2005@sina.com[],:0351-5697877;E-mail:spcespce@126.com。2008,27(6):42-45WaterPurificationTechnology42--DOI:10.15890/j.cnki.jsjs.2008.06.008WATERPURIFICATIONTECHNOLOGYVol.27,No.6,2008December25th,2008、。,;,;,,,。,,。,,,,,。,。2.190×104t/a,30~35m3/h,10m3/h。()1。1。2.2、、、、。、、。、、、、、、。、。。,。,。。:20h,0.5mg/L,P:2mg/L,pH:7.5~8.0,:30~35℃。。COD。:32h,2mg/L,P:3mg/L。:4g/L,pH:6.5~7.5,20~30℃。,2~3h,0.8~1.2m3/m2·h。100%,300%。。,CODSS,《》GB8978-1996,,,。,,CODSS。、,,。。::8min;:260~320mg/L;:1~2mg/L;pH:6.5~7.5;:2.5h;:0.75~1.10m3/m2·h;:8~12h。2.36:1,3~5d;2,,18~20d;3,,20~22d;,,25~27d;,/(mg·L-1)/(mg·L-1)CODCr2845~40503385180~690220SCN-210~280240NH3-N90~28015526~5545SS60~140102pH7.1~9.27.81Tab.1Wastewaterquality1Fig.1Diagramofcokingwastwaterbiologicalnitrogenremovalprocess43--Vol.27,No.6,2008,9~10d;,,18d。100d。2.420083。2。2,COD109~117.5mg/L,112.6mg/L,100mg/L,,、,COD75~93mg/L,90.8mg/L,。COD95%。、SCN-、NH3-N99%,。。3.1NO-22,,NO-21mg/L,,,,,。NH+4NO-2,,NO-2NO-3,NO-2。,,NO-2。3.2:(1)。10mg/L,,。(2)NH3-N。,10mg/L,NH+4。、,。,54~60h。3.3,。:pH,;,。:,CO2,pH,CO2、HCO3-、CO32-,,。,H+,。,,,,,,,,,,,”()。3.4A4/OA4,“”。,,2Tab.2treatmentresltsCODCr/(mg·L-1)/(mg·L-1)T-CN/(mg·L-1)SCN-/(mg·L-1)NH3-N/(mg·L-1)NO-2-N/(mg·L-1)NO-3-N/(mg·L-1)3385.2218.1238.2(57.5)①154.6528.932.455.6(13.6)①46.80.52.2112.60.041.02(0.2)①0.80.323.290.81000.50.515GB8978-1996GB13456-921500.50.525%②95.1099.9799.2399.05(77.40)③:①NH3-N,SCN-NH3-N;②0.83;③,T-NT-N。,.A/O()44--WATERPURIFICATIONTECHNOLOGYVol.27,No.6,2008December25th,2008(A1)、(A2)、(A3)、(A4)。A1(O2)([O]);A2CO2;A3SO42-;A4NO-3。A2、A3[O]。,,,A1。A4,,,,,,。。NO-3:2NO-3+12H++10e-→N2+6H2OA2/O,A2A1/A4,A1,,[3-7]。,,,,,。A/O,A4,A1,A4/O,。“O”,。、、COD,NH3-N,。,NH+4NO-2,NO-2NO-3。,,。:2NH+4+4O2→2NO-3+2H2O+4H+,,,,,,。。,A4/O/+,,、、。[1].[R].,2006.[2],,,.[J].,1997,13(1):14-17.[3],,.A2/O[J].,2007,23(14)4-7.[4],,,.A/O2GC/MS[J].,2006,11(11):1785-1791.[5],,.A/O[J].B,2004(6):509-516.[6],,.[J].,2000,26(6):35-37.[7],.[J].,1998,18(3):276-279.《》《》,,,、、-、-、、、、、,、、、,。,,,、、、。50.7,,,:010-64518888。→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→45--

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