磁混凝SBR工艺在食品加工废水处理中的应用

—SBＲ364021。SBＲ。SBＲX703.1A1671－380X201506－0101－03ApplicationofMagneticCoagulation－SBＲProcesstotheWastewaterTreatmentinFoodProcessingCHENYangManagementCenterofTrainingandExperimentMinxiVocationalandTechnicalCollegeLongyan364021ChinaAbstractThispaperintroducessomeinstancesofwastewatertreatmentforfoodprocessingfactory.Theremovalef-ficiencyofpollutantsinwastewatershowthatthewastewatertreatmentiseffectivebypretreatmentofmagneticco-agulationseparationandthenSBＲprocessforadvancedtreatment.thewaterqualityisstablewhichreachedthewastewaterdischargestandardforfoodprocessingenterprises.KeywordsMagneticCoagulationSBＲProcessWastewaterTreatment、、、、。1。COD、BOD。2SBＲCOD。3SBＲ。“+SBＲ”。11200m3/d《GB13457－92》。41。1Table.1InflowwaterqualityanddischargestandardPHSSmg/LCODcrmg/LBODmg/Lmg/LNH3－Nmg/L6.5－7.6150035001600250656－9≤70≤100≤30≤20≤15·101·37620156Journa[e-mail]。22.1。5、、、、。Fe3O4FeSO4。FeSO4Fe3O4PAM。、SBＲ。SBＲSBＲ。6SBＲ、。。、、3。2.21Figure.1Processflowdiagramforwastewatertreatment、SBＲ。1。。、。SBＲ。315mm80mm×10mm3m1.6m。、、。1000m315m×15m×5.5m。。1000m3/h9m×12m6403。1000m315m×15m×5.5m。SBＲSBＲ600m3/d13m×13m×5.5m5m2m0.09－0.12kgBOD/kgMLSS.dMLSS2.8g/L25－30d15h2h9.5h1.5h2h。2－4%7m×7m×3m。432。·201·6372Table.2Theeffectofwastewatertreatmentρ/mg/LPH6－77－86－77－86－77－86－9SSmg/L150024143222162725≤70CODcrmg/L330852.5325048.9345647.3≤100BODmg/L165413.8154414.9153215.6≤30mg/L23315.222516.125415.9≤20NH3－Nmg/L6310.6529.85810.4≤25“+SBＲ”。66BOD/COD=0.570.47、80.4415～30℃7、8。SBＲPH7－8SS≤25mg/LCODcr≤52.5mg/LBOD≤15.6mg/Lρ≤16.1mg/LρNH3－N≤10.6mg/L。51SBＲSBＲ。2mg/L。2PHpHpH7.0－8.0pH7.7－8.1。H+、OH－PHpH5.5。PHSBＲ。61“+SBＲ”PH7－8SS≤25mg/LCODcr≤52.5mg/LBOD≤15.6mg/Lρ≤16.1mg/LρNH3－N≤10.6mg/L。2SBＲ、CODcr、BOD83%3SBＲCODcr≤500mg/LBOD≤350mg/LSBＲ。SBＲSBＲSBＲ。4“+SBＲ”SBＲ。1.UASB—J.2013392123－126.2.J.200450274－76.3.J.200632370－71.4.GB13457－92S.19921－4.5.J.20088236307－6310.6.SBＲJ.2003196677－680.·301·6—SBＲ37