固体废弃物预处理中药制药废水的实验研究谢祖芳

39720107　　　AppliedChemicalIndustryVol.39No.7Jul.2010:2010-05-10　　:2010-05-20:(200808LX406):(1956-),,,,,。:0775-2622315,E-mail:[e-mail]谢祖芳,陈渊,梁达文,晏全,黄翠柳(,　537000)　:(),COD。pH、、COD,。,;H2O2COD;COD。:,pH5.0～6.5,60g/L,100g/L,H2O220mL/L,30min,(16mL/L)pH9。,COD73%96%,。:;;;:X703　　　:A　　　:1671-3206(2010)07-0980-04StudyonpretreatmentofChinesetraditionalmedicinewastewaterbysolidwasteXIEZu-fang,CHENYuan,LIANGDa-wen,YANQuan,HUANGCui-liu(DepartmentofChemistryandBiology,YulinTeachers'College,Yulin537000,China)Abstract:Thesolidwaste(ironfilingsandslag)wasusedtopretreatmenttheChinesetraditionalmedi-cinewastewater.ThetreatingresultwasanalyzedaccordingtotheCODremovalanddecolorizationrates.EffectsofpHvalue,reagentdosage,reactiontimeofwastewaterforCODremovalanddecolorizationrateswereinvestigated.Experimenthasshownthebestresultofinternalelectrolysiswasachievedatweakacid-icconditions,andaddinganappropriateamountofH2O2cansignificantlyimprovetheremovalefficiencyofCODandcolor.Afterthetreatmentofinternalelectrolysis,addinganappropriateamountoflimecreamtothewastewaterbenefitsbothCODremovalanddecolorization.TheoptimaltreatmentprocessisachievedatroomtemperaturewithapHof5.0～6.5inthewastewater,dosagesofiron-chipof60g/L,slagof100g/L,H2O2of20mL/L,afterareactiontimeof30minandthenincreasethepHto9byaddingalimecreamofdosageof16mL/L.TheCODremovalanddecolorizationreachedover73%and96%,re-spectively,insuchalowcosttreatment.Keywords:Chinesetraditionalmedicinewastewater;solidwaste;pretreatment;internalelectrolysis　　、、。、,、、、、、COD,[1]。　　-,Fe2+[H],,COD,、、、[2-3]。,,、,、。,,,,、、[4]。,,,,,DOI:10.16581/j.cnki.issn1671-3206.2010.07.0407:。,H2O2,,。1　1.1　　　、、30%H2O2;(),。　　,,pH4.3～5.2,COD800～1260mg/L。　　,18。0.1%、,。　　,,120。　　TU-1901;SHZ-88;pHS-3CpH。1.2　　　50mL250mL,、、H2O2,,,,3min,,340nm(,-),;COD,COD。2　2.1　　　、、/、//H2O2//H2O2/,:50mL,3g,5g,H2O21.0mL,35℃30min,0.8mL。-1,1。1　-Fig.1　UV-absorptionspectrumofdifferentapproaches1　Table1　Theresultsofdifferenttreatmentmethods(1.8A)/nmCOD/%/%(1)6030.663.8(2)11742.073.5(3)/11950.182.1(4)//H2O29267.395.2(5)//H2O2/11168.796.4　　11,,,COD,。1.8A,,1。,Fe2+[H],,。,/COD,,H2O2,COD17%,13%,H2O2-Fe2+Fenton,Fenton-[5],COD。,//H2O2。//H2O2/,,,//H2O2/。2.2　pH　　HClNaOHpH,1。50mL7g,7g,1mLH2O2,35℃30min,0.8mL,pH,2。2　pHFig.2　EffectsofwastewaterpHonremoval98139　　2,pHCOD,,pH5.0～6.5,[6]。pH,COD。,Fe2+[H],,,COD。,pHFe2+,Fe(OH)2。,,pH。2.3　　　50mL7g、7g,1mLH2O2,35℃,0.8mL,,3。3　Fig.3　Effectsofreactiontimeonremoval　　3,,COD,30min,COD。,,;,,,,,,,,。30min。2.4　　　50mL,,7g,1mLH2O2,35℃30min,0.8mL,,4。　　4,COD,3g,。,,,COD。3g(60g/L)。4　Fig.4　Effectsofdifferentdosagesofironfilingsonremoval2.5　　　50mL,,3g,1mLH2O2,35℃30min,0.8mL,,5。5　Fig.5　Effectsofdifferentdosagesofslagonremoval　　5,COD,5g,。,0.6,,。5g(100g/L)。2.6　H2O2　　50mL3g,5g,H2O2,35℃30min,0.8mL,H2O2,6。　　6,H2O2,COD;。H2O21.0mL,COD,COD9827:-Fenton。H2O2,Fe2+Fenton·OH[2],·HO,,,COD。H2O2,H2O2·OH,·OH,Fe2+Fe3+,Fe3+Fe2+[7],H2O2COD。H2O21.0mL,COD,H2O21.0mL(20mL/L)。6　H2O2Fig.6　EffectsofdifferentdosagesofH2O2onremoval2.7　　　50mL3g,5g,1mLH2O2,35℃30min,,,7。7　Fig.7　Effectsofdifferentdosagesoflimecreamonremoval　　,,,;,。-,,,,。Fe2+Fe3+,,、,Fe2+Fe3+,[3]。,//H2O2,pH,COD。7,0.8mL,COD,pH9。,0.8mL(16mL/L)。2.8　　　35℃,,COD73%,96%,,//H2O2/。,,,,。3　　　(1),:pH5.0～6.5,60g/L,100g/L,H2O220mL/L,30min,(16mL/L)pH9。,COD73%,96%。　　(2),、、,,、、、、。:[1]　,,.-[J].,2006,24(5):337-339.[2]　,,,.//H2O2[J].,2007,30(8):90-93.[3]　,,.THF[J].,2009,38(9):1391-1394.[4]　,,.[J].,2003(1):12-15.[5]　,.-Fenton[J].,2009,29(4):21-24.[6]　,.--[J].,2002,29(3):86-88.[7]　,.Fenton[J].,2009,32(5):141-143.983