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2007年第22卷第2期 Vol.22No.22007 (总第79期) JOURNALOFELECTRICPOWER (Sum.79): 1005-6548(2007)02-0162-04-COD徐 英(太原理工大学煤科学与技术教育部和山西省重点实验室,山西太原030024)TreatmentofCokePlantWastewaterbyUsinganImmobilized-Microbial-CellAnaerobic-AerobicProcessXUYing(KeyLaboratoryofCoalScienceandTechnology(TUT)andMinistryofEducationandShanxiProvince,Taiyuan030024,China) : 应用固定化微生物小球技术结合厌氧-好氧工艺处理焦化废水中的COD和氨氮,结果表明可行,该法与传统的活性污泥法及固定化硝化菌处理系统相比较,具有明显的优越性。经固定化微生物厌氧酸化24h、好氧曝气24h后,出水COD为132.1mg/L,氨氮为24mg/L,达到国家GB8978-1996二级排放标准(COD≤150mg/L;氨氮≤25mg/L)。表明该法在焦化废水处理方面有一定价值。: 固定化微生物;厌氧-好氧工艺;处理焦化废水: X784 : AAbstract: Immobilized-microbial-celltechnology,anewtechniqueforbiologicalwastewatertreatment,wasusedtotreatcokeplantwastewater.Comparedwithconventionalanaerobic-aerobicandimmobilizednitrobacteriaprocess,theimmobilized-microbial-celltechnologyhasdistinctadvantages.WhenthecokeplantwastewaterinfluentCODisabout1350mg/LandNH4-Nisabout287mg/L,reactiontimewas48h,theCODremovalefficiencywasabout90.2%,andtheNH4-Nremovalefficiencywasabout91.6%.Itissuggestedthatimmobilizationteniquehascertainvalueinapplyingtothecokeplantwastewatertreatment.KeyWords: immobilizedmicrobialcell;anaerobic-aerobicprocess;treatmentofcokeplantwastewater、、,,COD[1-2]。,[3-5]。,,,,,COD。,,: (20051017)。 : 2007-04-15 : 2007-05-18 : (1972-),,,,。DOI:10.13357/j.cnki.jep.001347,,。(ImmobilizedMicrobialCell,IMC)1,,,、,、,。,—,COD,。1 、1.1 试验工艺流程-1。1 - ,1∶2;,1∶3。48h,24h。35℃,。1.2 微生物培养与驯化1.2.1 ,3d,,(24h),。、,COD1300~1500mg/L,270~300mg/L,COD。1.2.2 。:1100~1300mg/L,500~2500mg/L,pH7.5~8.5,、、、。1.3 固定化微生物小球的制备流程[6]2 1.4 固定化微生物的驯化,,,。1.5 焦化废水水质,COD1350mg/L,287mg/L,pH6.1~6.4。2 2.1 固定化微生物小球的驯化,,,。,COD,,。5,。:,(28℃,120r/min),,NH4-N,NH4-N,5。,,,,PVA,,。,,,,,10。PVA,,,。NO2-、NO3-NH4-N,NH4-N,pH7.5-8.5,5,,,,1632 :-COD NH4-N,,,。2.2 焦化废水厌氧-好氧固定化微生物处理-,,1、2、3。-,COD132mg/L24mg/L,GB8978-1996(COD≤150mg/L;≤25mg/L)。,、、,。1 COD/mg·L-1COD/mg·L-1/%/mg·L-1/mg·L-1/%pHpH200411201350.1379.471.9287.6149.348.16.255.75200411211342.3357.173.4288.1150.047.96.315.82200411221312.5333.474.6288.4149.848.16.285.77200411231361.6358.173.7287.1148.448.36.175.64200411241354.1348.074.3279.9148.147.16.205.65200411251380.6279.979.8288.5149.048.46.355.84200411261537.7396.774.2289.3147.948.96.245.69 1,24h,COD、74.6%48.1%。pH:pH(6.1~6.4),24h,pH5.6~5.9,0.52,。:pH6.5,[7]。,COD,2。2 HRT/h034571224CODcr/mg·L-1135014021366135012671038347BOD5/mg·L-1284322355388304245104BOD5/CODcr0.210.230.260.250.240.230.30NH3-N/mg·L-1287290301294288233149 2,,CODcrBOD5。,,、,,(COD)。12h24h,CODcrBOD5,,。7h,NH3-N,[8]。,,3。3 3:,COD69.3%,83.9%。COD、1350mg/L287mg/L,24h、24h,COD132.1mg/L,24mg/L,GB8978-1996(COD≤150mg/L;≤25mg/L)。2.3 不同处理系统的比较3 --/h24/2424/2448/℃35/35/35/COD/mg·L-11310~13901310~13901310~1390COD/mg·L-1270~290127~137586~622COD/%79.3%90.2%55.3/mg·L-1280~295280~295280~295/mg·L-191.724.272~75/%68.191.684.6 3:(1)-,CODGB8978-164 20071996。(2)-COD。,CO2、CH4,,,。(3)-,、、,、。3 a.,,,、、,。b.,—。,。COD132.1mg/L24.2mg/L,GB8978-1996。:[1] ,,..,1991,9(1):31-33.[2] ,..,2003,2:1-3.[3] ,..,1997,29(2):142-146.[4] ,..,1992,5(5):1-9.[5] ZhangM,TayJH,QianY.ComparisonbetweenAnaer-obic-Anoxic-OxicandAnoxic-Oxicsystemsforcokeplantwastewatertreatment.EnvironEng,1997,123(9):876-883.[6] ,..““,2004,9,.[7] ,..,1997,29(2):142-146.[8] ,.,2003,4:68.[: ](161)、、。,。NILabVIEW,,。。:[1] ,.[J].,2001,9:45-46.[2] .PIC[M].:,2005:26-36.[3] ,,.LabVIEW7.1[M].:,2005:17-219.[4] ,.LabVIEW[J].,2006,(9):8-9.[5] .[M].:,1985.[:]1652 :-COD
本文标题:固定化微生物厌氧好氧处理焦化废水中COD及氨氮的研究徐英
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