磁絮凝技术深度处理焦化废水的试验分析

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1、太原理11人学硕十研究生学位论文significantcoagulationeffect．Magneticflocculationtechnologyinrecentyearsisveryhotemergingwatertreatmenttechnologyandwhichshowedmanyadvantagesinwatertreatmentapplication，dosingmagneticpowderandcoagulantcannotonlymakeflocculationeffectstrengthened，andimprove

2、thetreatmenteffect，stillcanimproveflocculentbodystructure，shortenthestaticsedimentationtime，andmagneticpowdercanalsorecycling，magneticflocculationtechnologyisakindofmorepromisingwatertreatmenttechnology．Theaimofthisstudywastoexploretheapplicationprospectofmagneticfloccula

3、tiontechnologyincokingwastewatertreatment，toprovidethereferencetoreformthecokingwastewatertreatmentprocessandtomeetemissionstandards．Theexperimentonthebiologicaltreatedcokingwastewatertreatmentbymagneticflocculationwasstudied，takingCODcr，NH3一N，theturbidityremovingratesofc

4、okingwastewaterasstudyindex，first，throughthesinglefactorstatictest，theinfluencesofpolyferricsulphate(PFS)dosage，polyacrylamide(PAM)dosage，magneticparticledosage，staticsedimentationtimeanddosingwayofthedrugontreatmenteffectwerediscussed，thenthebesttestconditionsofvariousfa

5、ctorswasfoundoutthroughtheorthogonalexperiment，finally，thetestresultwascheckedthroughtheparalleltests．Testresultsandconclusionswereasfollows：(1)DosingPFSseparately，thetestshowedthattheoptimaldosageofPFSwas800mg／L，thestaticsedimentationtimewas30min，CODcr，NH3一NandtheVI太原理I．

6、人学硕士研究生学位论文turbidityremovalratesreached55．20％．18．12％and84．94％respectively(2)IntheexperimentalconditionofPFSdosingfor800mg／L，dosingPAMadditionally，thetestshowedthattheoptimaldosageofPAMwas8mg／L，thestaticsedimentationtimewas25min，CODcr，NH3一Nandtheturbidityremovalratesreache

7、d61％．20．67％and89．76％respectively．／J，(3)IntheexperimentalconditionofPFSdosingfor800mg／L，PAMdosingfor8mg／L，dosingmagneticparticleadditionally，thetestshowedthattheoptimaldosageofmagneticparticlewas400mg／L，thestaticsedimentationtimewas20min，CODcr，NH3一Nandtheturbidityremovalra

8、tesreached62．50％，22．26％and92．17％respectively．(4)Throughtheinvestigationofthethreedosingwayandthe