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1、ModificationofChitosanintreatmentofphenolwastewaterAbstractTheindustrialwastewatercontainingphenolfromarangeofsources,theharmisserious,thecurrentdomesticandforeignscholarsareactivelyseekingeffectivewaysoftreatmentofphenolcontainingwaste.Commontreatmentmethodsofphenolwastewaterwithad
2、sorptionmethod,solventextractionmethod,biologicalmethodandchemicalmethod,buteverymethodhasitsownadvantagesanddisadvantages,themainissuesfocusedonthetreatmenteffectofwastewatercontainingphenolandcost.Chitosan(CTS)isakindofnaturalhighmolecularcompound,itsextensivesources,non-toxic,bio
3、degradable,thechitosanmoleculecontainsalargenumberofamino,soithascertainadsorptionofphenoliccompounds,however,chitosanisunstableinacidicmedium,easyhydrolysisloss,whichmakestheapplicationofchitosanasadsorbentrestricted.Thephysical-chemicalmethodmodifiedchitosanadsorbentwasprepared,ph
4、enolwastewatertreatmentbyadsorptionmethod.Researchcontents:(1)addedbydroppingtheballpreparationofchitosanparticles,modifiedandCitralonchitosanparticlespreparedbymicrowaveradiation,theparticulateadsorbentcitralrepairchitosan(CTSCparticles).(2)withphenolwastewaterastreatmentobject,tes
5、ttheadsorptionpropertiesofCTSCgranularadsorbent,intheexperimentalconditionsofstaticadsorption,adsorbent,pHvalue,stirringtimeandthequantityofthefactorsaffectingtherateofremovalofphenolinwastewater.Intheselectedconditions,theexperimentalresultsshowthat:1.thisexperimentusingmicrowavera
6、diationmethodcitricaldehydemodifiedpowderchitosan,preparationofchitosanSchiffbaseadsorbent,selectedbyorthogonalexperimentstheoptimummodificationofexperimentalconditions.ChitosancitralSchiffbase(CTSC)ofthebestreactionconditionsare:microwavepowerwas480W,reactiontime6min,ethanolandwate
7、rvolumeratiois2:1,citralandchitosanmassratioof6:1,intheconditionofcondensationproductratecanreach82.31%.2.Theoptimumconditionsof2preparationofsphericalchitosanparticles:chitosanHAcsolutionoflOOmL2%,the200hLpipettetip,100ofNaOH%/C2H5OH%=2%/10%mLcondensate,thepreparationofparticlesize
8、isabout2mmspherical
