A1A2O工艺结合生物流省略废水NH3NCOD中试研究杨天旺

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A1-A2/ONH3-N、COD杨天旺1 吴洪英2 林齐枢2(1.,610041;2.,617022)    A1-A2/ONH3-N、COD。:NH3-N500mg/L、COD2000mg/L,NH3-N97%,COD85%,99.9%。6.6/t,50h。 A1-A2/O  NH3-N、COD  :1005-9598(2002)03-0052-07 :X784  :A  :(1)。;(2);(3)、、。70%,NH3-N、COD、、。,、99.9%,COD40%~50%,NH3-N20%~30%,NH3-N、COD。(),,。,NH3-N、COD。A-O()、A-O-O()。(1);(2)(NH3-N≤250mg/L);(3)(900);(4)()。,、:2001-12-10:,,1965,,。19897,。2m3/h。,(GB13456-92),、。1 NH3-N、COD1.1 。,,:(1)(),,,。1。(2)COD、、、、。(3),。(4)。,--(A1-A2/O)-,,、。1。1.2 (2)3(100)    No.3(Total No.100)  20026  CoalChemicalIndustryJun. 2002  1 mg/LCODNH3-NpH()2000~3500600~1000600~1000508~9()1000~2000500200~400208~91 NH3-N、CODA- B- C- D- E- F- G-1— 2— 3— 4—2 48m3/dHRT=6h~8hHRT=8h~10h,DO=0.5mg/L~1.0mg/Lr5HRT=16h~18h DO=5mg/L5g/L~10g/L SV%=41%~70%  :HRT—;DO—;SV%—30min。2 2.1 :A-O,2L,,36h~48h,,。,。:,DO、pH,,。:。2.2 ,,,,,,。,,C/N,。,,COD、NH3-N,DO5mg/L~8mg/L,,,。,:,,。,,·53· 20026 :A1-A2/ONH3-N、COD     DO1.0mg/L。2.3 2.3.1  0.5m3/h~0.6m3/h,COD≤1200mg/L,NH3-N≤350mg/L。200062,69,69719COD14.03%,NH3-N9.45%,92.54%。、,,92.54%,COD、NH3-N,NH3-N。2.3.2 (1)(3)3 0.6m3/h,26℃~29℃3.14g/LNa2CO310kg/dSV25%~30%FeCl35kg/dpH6.5~7.0  (2):40,25%~30%,10%,720,,NO-2、NO-3,COD72.67%,NH3-N53.95%,99.79%。(3):、40;NO-2,NO-3,,NO-2。,,,。2.3.3 (1)(4)  (2):719,719~816COD、NH3-N,817,NH3-N,821NH3-N20mg/L,829105,4 1m3/h~1.3m3/h、320~4211.5m3/h()SV30%~40%30%~40%COD4000mg/L NH3-N600mg/L;320~421COD2000mg/L NH3-N500mg/L40kg/d~60kg/dpH6.0~6.5 7~8FeCl310kg/d28℃~32℃ 30℃~32℃3~5,。2001125,。2~6。(3)2、3:,COD、NH3-N(COD80%、NH3-N90%),COD、NH3-N(NH3-N600mg/L)。。4、5:12%COD,COD30%~40%,50%~60%。COD,。;,2 COD·54·                                  200235 NH3-N,,,,。COD,。6:,420mg/L~940mg/L99.9%,。。6 ,(),,。,30%~35%。,32~429:320~421,,,NH3-N、COD,NH3-N500mg/L、COD2000mg/L,。:NH3-N97%,COD85%,NH3-N15mg/L,COD200mg/L。2.3.4  429,,424,,(59~531),7、8。  5。  :,COD(85%)。,:(1);(2);COD,NH3-N,·55· 20026 :A1-A2/ONH3-N、COD     7 COD,,NH3-N,NH3-N,。:(1)NH3-N;(2),8 NH3-N,(2~3),NH3-N。61,20,。5 1.5~2.0()m3/h40kg/d~60kg/dCOD:3000mg/L~4000mg/L;NH3-N:400mg/L~1300mg/L()FeCl310kg/dpH6.0~6.5 7~83SV25%~30%3 3.1 62000913920()COD、BOD5。6 mg/LBOD5CODBOD5/CODBOD5CODBOD5/CODBOD5/COD91381215830.51381114700.5520.03992055015680.35152213240.3940.043  ,6:BOD5/COD,(COD12%,4),,,,,,。3.2 DO,DO(1mg/L~2mg/L,4mg/L),,,,DO,DO,、(DO:0.5mg/L~1.0mg/L),DO,。3.3 ,,,,,200114,40℃~45℃,30℃~32℃,28℃~32℃,,,。3.4 pH,:NH+4+2O2+CO2-3NO-3+H2CO3+H2O1gNH3-N·56·                                  200237.57g(Na2CO3)。,1.3m3/h,NH3-N465.32mg/L,11.67mg/L(2001320420),Na2CO3107kg/d,60kg/d,。:NO-3+5H+0.5N2+2H2O+OH-Na2CO3+2H2O2Na++2OH-+H2CO31gNO-3-N3.78g(Na2CO3),,,pH8,,,pH,NH3-N,pH6.0~6.5,,,CO2。:(1);(2)pH,,。pH6.5~8.5。3.5 320~421(9、10):COD2000mg/L,NH3-N600mg/L,:0.3kgNH3-N/m3·d,2.0kgCOD/m3·d,COD200mg/L,85%,NH3-N15mg/L,97.5%9 320~421COD·57· 20026 :A1-A2/ONH3-N、COD     。59~531(11、12):CODNH3-N(NH3-N600mg/L)NH3-N,:1.3kgNH3-N/m3·d;3.0kg-COD/m3·d。:COD400mg/L,NH3-N150mg/L,,A-A/O。,,NH3-N。3.6 :R=r/(1+r),:r—,R—。:,。,r=5,3cm,COD、NH3-N。,,,r=3,,1cm。3.7 (321~420)3.7.1 (7)7 1.5m3/hNa2CO350kg/d2200/t110/dFeCl310kg/d650/t6.5/d150g/d10000/t1.5/d10kW·h×240.5/kW·h1206.6/t·  ,,,,,,,。A1-A2/ONH3-N、COD,、、NH3-N、COD。:NH3-N200mg/L,12/t;:NH3-N100mg/L,20.4/t()。3.7.2  20m3,20m3,V36m3。、、:HRT=(20+20+36)/1.5=50h,1∶1∶2。4   4.1 A1-A2/ONH3-N、COD。NH3-N500mg/L、COD2000mg/L,NH3-N97%,COD85%,NH3-N15mg/L,COD200mg/L。。4.2 40,6.6/t,50h,、、、。4.3 (NH3-N600mg/L)。4.4 (NH3-N600mg/L)NH3-N。4.5 99.9%,。5 5.1 ,COD(COD150mg/L),:(1);(2)、;(3)NO-2。5.2 ,、、、。5.3 ,,,。5.4 ,。5.5 ,,。(下转第62页)·58·                                  20023LIUJun-feng YIPing-gui(DeptofChemicalEngineering,XiangtanPolytechnicUniversity,411201)Abstract Thewastewatercontainingphenolfromcokinghasbeentreatedwithmeg-holeadsorptionresinofNankaibrandH103afterfiltratedbyelevatedtemperaturecinderfromsteelmaking.Theresultsshowedthatwastewatercontainingphenol520mg/LandCOD3200mg/Ldecreasedtothatwithphenol≤0.5mg/L,COD≤80mg/Laftertreatingbytheresinadsorptionatroomtemperature,pH6and4BV/hofflowvelocity.Thetreatingvolumeis60BV.Thetreatedwatercanreachthedischargestandardofourcountry.Theresincanberegeneratedby0.5BVofmethanolatroomtemperatureand2BV/hofflowve-locity.Therateofdesorptionisabove99%.Theperformanceoftheresindidnotchangeafterrecycling100times.Whenthedesorptionagenthasgottensaturated,itcanrecovermethanolandphenolwithdistil-lation,andtheresiduecanbetreatedbyincineration.Keywords wastewaterfromcoking,phenol,adsorptionresin,wastewatertreatment(上接第58页)Pilot-ScaleStudyoftheRemovalofNH3-NandCODinCoke-ChemicalWastewaterCombineBiologyFluidizedReactorwithA1-A2/OProcessYANGTian-wang1 WUHong-ying2 LINQi-shu2(1.Environmentcollege,SichuanUniversity;2.CoalChemicalCompanyOfSichuanPanZhiHuaIron&SteelComplex,617022)Abstract Thispaperintroducesthepilot-scaleofthetreatmentofhighdensityNH3-NandCODincoke-chemicalwastewatercombinebiologyfluidizedbedreactorwithA1-A2-Oprocess.WhenthedensityofNH3-N500mg/LandCOD2000mg/L,NH3-Nremovalpercentagewasmorethan97%,whileCODremovalpercentagewasmorethan85%andphenolremovalpercentagewas99.9%,thecostofmedica-mentandmotivepowerwas6.6yuanpertonwater,theretentionp

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