IC反应器中剩余污泥的厌氧消化试验研究王光辉

:1005-7854(2007)03-0073-04IC王光辉,于冰,张志凡,张洪林(辽宁石油化工大学环境与生物工程学院,辽宁抚顺113001)　:IC,。,、12d,8d,COD,,70%。,,56%。:;;;;IC:X703.1;X703.3　　:ARESEARCHONANAEROBICDIGESTIONOFTHERESIDUALSLUDGEWITHICREACTORWANGGuang-hui,YUBing,ZHANGZhi-fan,ZHANGHong-lin(SchoolofEnvironmentalandBiologicEngineering,LiaoningUniversityofPetroleum&ChemicalTechnology,Fushun113001,Liaoning,China)ABSTRACT:ThetestisconductedonexperimentsofanaerobicdigestionwithICreactorundermesophilicandhightemperatureconditionsforresidualsludgefromSanbaotunwastewaterplantinfushun,andthefeasibilityofanaerobicdigestionprocessisinvestigated.TheresearchresultshowsthattheremovalrateofCODandpro-ducingairquantitiesundermesophilicandhightemperatureconditionsaresteadyaftercontinuousproducingsludgerespectivelyfor12or8days.Themethanecontentinairisover70%.Flocculationexperimentshowsthatthemudcakevolumeoftheequalweightdigestivesludgeafterflocculatingis56%,comparedtorawsludge.KEYWORDS:residualsludge;anaerobicdigestion;mesophilictemperature;hightemperature;ICreactor:2006-12-20:,,:。1　引　言　　,,。、、、,,:、(),、,;、。,。,、,,。1　试验部分1.1　,,,。24h1。16　320079　　　　　　　　　　　　　　　　　MINING&METALLURGY　　　　　　　　　　　　　　　Vol.16,No.3September　20071　Table1　QualityofconcentratedresidualsludgeCOD/(mg·L-1)BOD/(mg·L-1)pHVFA/(mg·L-1)TS/%VS/%/(mg·L-1)/(mg·L-1)TN/(mg·L-1)70～20019000～2800012000～170007.2～7.524～1202.4～3.61.5～2.5102～19436～961000～12001.2　COD:;BOD:BOD;pH:PHS-3B;:;:;VFA:;TS、VTS:。1.3　1。IC,USAB,0.6m,6,5:、、、。IC,、、。1　(IC)Fig.1　Sketchmapofanaerobicreactor(IC)withinternalcirculation2　试验结果与讨论2.1　9∶1,(35℃)(53℃)。,8%,,、CODNH3-N、VFA、pH,,。,,20～25d;10～12d。2.1.1　COD,COD29769mg/L24044mg/L6092mg/L8847mg/L,COD77%65%;COD,5450mg/L3162mg/L,1507mg/L880mg/L,2。,,COD,COD;,、CH4、CO2、H2COD。2　CODFig.3　ChangesofCODintheprocessofresidualsludgedigestionunderhighandmesophilictemperatureconditions2.1.2　pHpH,、,,,pH,pH,pH5.8,pH7.8,pH,,pH7～7.6。3,pH。,pH6～7.6。·74·　　3　pHFig.3　ChangesofpHintheprocessofresidualsludgedigestionunderhighandmesophilictemperatureconditions2.1.3　。4。VFA,(),,,;,,。,,;,;。4　VFAFig.4　ChangesofVFAintheprocessofresidualsludgedigestionunderhighandmesophilictemperatureconditions2.1.4　,。(H2CO3VFA),(pH),。,VFA,。2000～5000mg/L,1000mg/L,pH。,,5。,,、、。,,,;,。6。5　Fig.5　Changesofalkalinityintheprocessofresidualsludgedigestionunderhighandmesophilictemperatureconditions6　Fig.6　ChangesofNH4+-Nintheprocessofresidualsludgedigestionunderhighandmesophilictemperatureconditions2.1.5　,。、,;,,;·75·:IC,12d8d,,700～800mL,70%,pH7,,。2.2　(CPAM),0.1%,100mL。CPAM,;(ABS),;(SV)、,。2、3。2　Table2　ResultsofflocculationexperimentCPAM/mLSV/%ABSCPAM/mLSV/%ABSCPAM/mLSV/%ABS110——10850.28710860.283220870.29115710.21115700.221330750.20420620.14220640.137440700.18325600.15325620.151545620.15730750.29030750.302650750.37040800.45840820.4963　Table3　ChangesofSVandwaterratioincakebeforeandafterflocculatingSV/%/%SV/%/%9989.36286.29082.26074.69082.66275.7,0.1%(CPAM)100mL45、25、25mL;;;,75%,,56%;,,,。3　结　论(1),,20～25d;10～12d,。(2)ICpH6.5～7.5,2000mg/L,,700～800mL,。(3)(35℃),20d,COD77%,60.2%;(53℃),12d,COD65%,52.4%。(4)IC,,60%,75%。:〔1〕,,.[M].:,2005.〔2〕,.[J].,2005(6):36-38.〔3〕ZhaiYunbo,WeXianxun,ZengGuangming.Effectofpy-rolysistemperatureandholdtimeonthecharacteristicpa-rametersofadsorbentderivedfromsewagesludge[J].JournalofEnvironmentalSciences,2004,16(4):683-686.〔4〕,《》.[M].3.:,1994.·76·