磁絮凝在餐饮废水中的应用研究孙鸿燕

[]　2005-09-11[]　(1965-),,,,。,,,(南昌航空工业学院,江西南昌　330034)[]　;;COD;[　]　COD,、。:,、,。[]　X45　　　[]　B　　　[]1001-4926(2006)01-0034-05TheapplicationstudyofseveralcombinedmagneticflocculantsinrestaurantwastewaterSUNHong-yan,SHIShao-xin,WANGPing-yu,XIONGJian-min(NanchangInstituteofAeronauticalTechnology,Nanchang,Jiangxi　330034,China)Keywords:combinedmagneticalfocculant;restanrantwastewater;CODremovalrate;applicationstudyAbstract:WithCODremovalrateasareference,severalmagneticcoagulantsusedinrestaurantwastewateraresystematicallystudied.Theresultindicatesthatcomparedwiththeordinarycoagulant,magneticcoagulantcanraisetheflocculatingeffect,shortentheperiodofsedimenta-tionandreducethesludgevolume.,,、、。,,,,。、。1　、1.1　DBJ-623();COD()1.2　PFS(,[Fe3+]160mg/L,[Fe2+]1mg/L,,;PAF(,,);PAC(,,);(Fe3O4,);PAM(3000000,30%);()1.3　(,Ⅰ,COD=4300～5000mg/L;Ⅱ,COD=2700～3100mg/L,PH6.1～6.8)2　PAF()、PFS()、PAC()、PAM()4g/L、5g/L、2006320　1()JournalofNanchangInstituteofAeronauticalTechnology(NaturalScience)Mar.,2006Vol.20　No.18g/L、1g/L,()10g/L,。:,250mL500mL,COD;360r/min,1min40r/min,10min,2.5hr,COD。:,:360r/min,,,1.5,COD。3　、3.1　250mL,。2.5hr,COD。PAC、PFS、PAFCOD1、21。1,Ⅰ,PFS,PAF,PAC。2,Ⅱ,PAC,PAF,PFS。12,COD;,,。:250mLⅠ,PFS、PAF、PAC55mg、37mg、54mg;250mLⅡ,PFS、PAF、PAC57mg、38mg、52mg。,、,,COD;,,。3.2　(250mL),。,3.10.5mL,1。COD34。1、2,3、4,COD。3、4,Ⅰ,PFS,PAF,PAC;Ⅱ,PAC,PAF,PFS。3、4,,COD;351、、、:,COD,,,1。:。、,,,,。,;,,,。,,、ζ,,;,,,。,,,,COD;,,,,COD。1.5hr(250mL)COD1。1,,2.5hr1.5hr,40%,PAC,PAF、PFS。PFS、PAF、,,,,。表1　三种絮凝剂及其磁絮凝剂的最佳投量、COD去除率、静置时间对比　,mgCOD,%,hrⅠ(250mL)PAC5485.22.5PAC+58+6285.21.5PAF3791.82.5PAF+39+5992.81.5PFS5595.72.5PFS+58+6497.31.5Ⅱ(250mL)PAC5292.82.5PAC+56+7092.51.5PAF3884.52.5PAF+40+6185.31.5PFS5781.62.5PFS+61+7083.41.5　　1,PFSⅠ,PACⅡ。PFSⅠ。3.3　PFS-PAM(1)PFS-PAMⅠ(250mL),COD4656.9mg/L;12.5mLPFS(5g/L,PAM、PFS,PFS12.5mL),PAM(1g/L),20min,COD,2。36()表2　PAM投量对PFS-PAM复合絮凝剂性能的影响123456PFS/mL12.512.512.512.512.512.5PAM/mL11.51.822.53COD/%86.990.090.490.189.488.1　　:COD=4354.8mg/L,250ml,20min。2,PAM,COD,,COD,3.1。2,250mLⅠ,PFS-PAM12.5mL(63mg)+1.8mL(1.8mg)。2,PFS-PAMPFS,1.5hr20min,COD86.6%88%～90.4%。PFSPAM。(2)-PFS-PAM、Ⅰ(250mL),COD4354.8mg/L;,,(12.5mL,5g/L)PFS,,PAM(1g/L,PAM,2mL),20min,COD,,3。表3　磁粉投量与COD去除率、絮体体积关系123456PFS/mL12.512.512.512.512.512.5PAM/mL222222(mg)40506070800COD(%)91.291.892.192.292.290.4(ml)252019181945　　:COD=4354.8mg/L,250ml,20min。32,,,COD86.9%～90.4%91%～92.2%,,Fe3O4PFS-PAM、,,、,。,COD。3,,COD;,COD。250mLⅠ,-PFS-PAM70mg+63mg+2mg。3,,。,,,,。,、,,;、。4,40mg50mg,25mL20mL;,,18～19ml,,。3.4　、Ⅰ(250mL),COD;、PFSPAM(3.3),,5min,,COD,4。371、、、:表4　磁场对COD去除率的影响　　12345PFS/mg6363636363PAM/mg22222/mg4050607080COD/%(20min)91.291.892.192.292.2(5min)95.295.896.096.396.1　　:COD=4354.8mg/L,250ml。4,20min5min,COD92%96%,,。、、、,,。、,,,,。,,、,,。4　(1)PAC、PAF、PFS,PFSCOD=4300～5000mg/L,PACCOD=2700～3100mg/L。COD=4300～5000mg/L,PFS+PAMPFS。(2)、,()。(3),。[][1]　,,.[J]..1999,25(1):45-48[2]　.[J]..1999,38(1):17-19[3]　,.Fe3O4(VI)[J]..1995,21(3):28-30(33)表1　输入电流、输出电压数据Iin(mA)5.326.757.878.539.26Vout(V)1.3011.6531.9232.0902.268Iin(mA)10.1511.1812.4413.6514.71Iout(V)2.4852.7393.0463.3453.603Iin(mA)15.6216.9817.9318.3719.23Vout(V)3.8284.1594.3944.5004.713[][1]　AlexanderJaus.NavigatingtheRegulatoryMazewithOptocouplers[J].PowerElectronicsTechnology.May2005,Vol.31Issue5:48-52[2]　,.[M].:.2000(9):42-44[3]　ANSANGHOU.AWideBandwidthIsolationAmplifierDesignUsingCurrentConveyors[J].AnalogIntegratedCircuitsandSignalProcessing,2004,40:31～38[4]　,.[J]..2003.Vol.33,No.1:52-54[5]　HCNR200/201TechnicalData[Z].AgilentTechnologies[6]　Travis,Bill;delRio,Alfredo.Optocouplersimplifiespower-linemonitoring[J].EDN.2002,1(10),Vol.47Issue1:76-7738()