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20171266JournalofBengbuUniversityDec.2017Vol.6No.62017－06－27*2017CX02015ZX07204－007。1992－。E－mail1173445000@qq．com*230601pH、、、。pH10500mL、PAC、PAM30mg1%PAC3mL0.1%PAM2mL100－150r/min60minSS、TPTN95.32%、93.81%38.13%。PAC、PAMTN。SSTPTNX792X172A201705－0046－05StudyonPretreatmentofSweetPotatoStarchWastewaterbyMagneticFlocculationWUJianZHANGJin-liu*HAIZi－binCAIJing-minYINFu－caiDepartmentofBiologicalandEnvironmentalEngineeringWater－EnvironmentＲesearchLaboratoryofAnhuiEnvironmentalScienceInstituteHefeiUniversityHefei230601AnhuiAbstractThetechnologyofMagneticFlocculationwasusedtopretreattheSweetPotatoStarchWastewaterthatthetestingfactorsincludedtheinfluenceofpHtheoptimumdosageofflocculantsandMagneticpowderthedosingsequencethemixingrateandthesettlingtime．Theresultsrevealedthat95.32%ofsuspendedsolidsreduction93.81%ofphosphorusremovaland38.13%ofnitrogenremovalcanachievedonthecondictionthatthepH10theoptimumdosageofPAC3mLPAM2mLMagneticpowder30mgthemixingrate100－150r/minandthesettlingtime60min．Thesubsequentdeeppro-cessingloadcanbegreatlyreducedthroughthecoordinationofmagneticpowderwithPACandPAM．HowevertheeffluentwaterqualitystillcannotmeetthewaterqualitystandardsVandthedeepprocess-ingisneeded．Keywordsmagneticflocculationsweetpotatostarchwastewatersuspendedsolidsreductionphosphorusremovalratenitrogenremovalrate。9121。SS、TPTN、、。、。、2DOI:10.13900/j.cnki.jbc.2017.06.012、、、3。Tause4Lipus5。6pH、SS、TNTP。11．11。1pHSS/mg·L－1TP/mg·L－1TN/mg·L－15－62008．9744．41．2pH、SystecVX、Hach2100P、、、-JJ-4。1．31%PAC、0．1%PAM、Fe3O4、7%NaOH、K2S2O8KH2PO4MMoO410%C6H8O6KNaC4H4O6·4H2O1+9HCL1．4TN、TP、。SS、TPTN=1－A/A×100%ASSmg/L、TPmg/L、TNmg/LASSmg/L、TPmg/L、TNmg/L。22．1pH500mL6500mL7%NaOHpH6、7、8、9、10、111%PAC3mL、0.1%PAM0.5mL30mg100r/min1min30min。pHSS、TN、TPpH。pH1。1pH1pHTP、SS、TNTPpHSS、TPTNpH=10SS、TPTN。PACAl3+OH6、、7。SSTP。2．22。274500mL6500mL7%NaOHpH101%PAC3mL、0．1%PAM0.5mL10mg、20mg、30mg、40mg、50mg、60mg100r/min1min30min。pHSS、TPTN。2SS、TPTN30mg30mg。2．3PAC500mL6500mLpH10PAC1mL、2mL、3mL、4mL、5mL、6mL30mgPAM100r/min1min30minPAC3。3PAC3PACSS、TPTN77.63%、80.14%19.01%1mL4mLSS、TPTNＲuehrweinWard8PAC4mLPACSS、TPTNPAC3mL。2．4PAM2.12.2pH10PAC3mL500mL5500mLpHPACPAM1mL、2mL、3mL、4mL5mL30mg。PAM4。4PAM4PAM2mLSS、TPTN80.1%、84.31%36%PAMTN。PACPAM、PACSS、TPTNPAC2.47%、3.47%17%。PAM2mL。2mL。2．5PAC、PAM3mL、2mL30mgPAC、PAM①、②③2。2PACPAM。Fe3O4、9。PAC、PAM842017126636。PACPAM。2SS/mg·L－1/mg·L－1/%TP/mg·L－1/mg·L－1/%TN/mg·L－1/mg·L－1/%①+②+③49．6075．202．7569．3434．7821．67③+①+②34．4082．802．1576．0329．2334．17①+③+②45．5277．242．3973．3634．0523．312．6pH10PACPAMPAC3mLPAM2mL30mg500mL6500mLpH、50r/min、100r/min、150r/min、200r/min、250r/min300r/min。5。55SS、TPTN100r/minTP88%150r/minSSTN95.5%42.37%＞150r/min10150r/minSS。100－150r/min。2．7pH10PAC3mLPAM2mL100－150r/min。500mL6500mLpH、10min10－60min6。66SS、TNTP。640min1SS、TPTN95.32%、93.81%38.13%SSTP100%60min。943、PACPAMSSTPTPSSTNPACPAMTN。PACPAMpH10。、PAC、PAM30mgPAC3mLPAM2mL100－150r/min60minSS、TPTN95.32%、93.81%38.13%。。SS9.36mg/L、TP0.56mg/L、TN27.47mg/LTN。1．J．2010332165－166．2D．20126－7．3．J．201238290－91．4TAUXELSTEINDOＲFJLHAＲＲISA．Depositionalre-manmentmagnetizationTowardanimprovedtheoreticalandexperimentalfounationJ．EarthandPlanetarySci-enceLetters20062443/4515－529．5LIPUSLCKOＲPEJCＲEPINSEKL．Dispersiondestabi-lizationinmagneticwatertrearmentJ．JournalofColloidInterfaceScience2001236160－66．6．－J．201632262－63．7．J．20112751－2．8ＲUSHTONAWAＲDASHOLDICHＲG．M．2．200535．9．———J．201452310－11．10．J．20152910100－101．052017126636