高浓度混合制药废水的中试处理王金梅

1,2＊,2,2,2,2(1.,　067000;2.,　100012):--,,,,pH,,,3t/d.,,COD97.6%,COD.:;;--:X787　:A　:0250-3301(2002)-04-0044:(1967～),,,.＊APilotStudyontheTreatmentofHighConcentrationPharmaceuticalWastewaterWangJinmei1,WangQingsheng2,YuYanmin3,ChenDehui2,XiBeidou2,HaoYongli2(1.ChengdePetroleumCollege,HebeiChengde067000,China;2.ChineseRerearchAcademyofEnvironmentalSciences,Beijing100012,China)Abstract:Apilotstudyonthetreatmentantibioticpharmaceuticalwastewaterbyusinghydrolysisacidification-anaerobic-aerobicbiologicalprocess.Theeffectsofpreliminarytreatment,biochemicaltemperature,pHvalue,hydraulicretaintime(HRT)andinfloworganicconcentrationandotherfactorstobiochemicalprocesswerecheckedbyusinglaboratorytest.Theflowratewas3t/d.TheexperimentresultsundertheregularconditionshowedthatCODremovalratecameto97.6%.CODconcentrationoftheoutflowcouldbereducedtolessthen300mg/Ltomeetthenationalstandardofpharmaceuticalindustry.Keywords:pharmacueticalwastewater;treatmentofpilottest;hydrolysis-anaerobic-aerobicprocess　　,..,,,.,COD,SS,,,[1].,--,3t/d,3.1　1.1　(),,.()、.,(),,,,,.(),,、CO2、H2S.,,,,[2].,,,23200212　　　　　　ENVIRONMENTALSCIENCEVol.23,Sup.Dec.,2002DOI:10.13227/j.hjkx.2002.s1.010.1.2　,,30℃,7d,,,.().,.1.3　,、、,,1.1　/g·L-1Table1　Waterqualityofmixturewastewaterinpilottex/g·L-1COD2BOD5SO2-4SSpH12～184～83.0～5.03.5～7.56.8～7.21.4　1.4.1　1,(),UASB.1　Fig.1　Thetechnologicalprocessofthepilottest　　,,UASB.,,,.1.4.2　(1)　[4],COD,,,pH(2).(2)　2,,,COD.2　/g·L-1Table2　Thecoperatingconditionintest/g·L-1COD/g·L-1/℃/hpH1.20～13.035248.07.0～8.038248.02.5～2.020～25127.02　2.1　()2.1.1　(),,500mg/L300kg,2.0g/L,,,120L/m,()2.45　　　　　　2　()Fig.2　Changeofdebuggingwaterwiththeoperatingtineinhydrolysis　　2()COD40%,COD,,COD,,COD7g/L,(VFA,)2.0g/L.(),H2,,,[3]SO2-4,:CHCOO-+SO2-4=2HCO-3+HS-4C2H5COOHCO-3+3SO2-4=4CH3COOHCO-3+4HCO-3+3HS-+H+4H2+SO2-4+CO2=HS-+HCO-3+3H2OFe+HS-=FeS↑+H2　　,,pH,,,.2.1.2　,COD2.0～13.3g/L,COD12.4kg/(m3·d),COD4.75kg/(m3·d),6.13kg/(m3·d),,3.2.2　2.2.1　UASB,,,,300kg2.0g/L,7d,120L/h,COD0.25kg/(m3·d)2.0kg/(m3·d),COD7.0g/L.4,COD3.5g/L,pH7.0,COD47.3%,3.0g/L.3　()SO2-4Fig.3　ChangesofvolumeloadandSO2-4withtheoperatingtimeinhydrolysis4　CODFig.4　ChangesofCODconcentrationwithwithoperatingtimeindebuggingofanaerobic2.2.2　5.COD4.0kg/(m3·d),3.1kg/(m3·d),,,,,SVI20.2mL/g.46　　　　　　23,20m/h,,,,.5　Fig.5　Changesoforganicloadwiththeoperatingtimeinanaerobic2.3　,.300kg,,COD3.0g/L,,2d,6.6,COD2.5g/L,COD2.0g/L,.1,,..COD1.5g/L,58%.6　CODFig.6　ChangesofCODconcentrationwithoperatingtimeinaerobic2.4　()--3,,203.3COD.,,,COD.3　21dTable3　Theaverageresultsinsteadyoperatingin21daysCOD/mg·L-1～13300～11830～6690～3670～1520～308/%43.554.99.7/%87.297.63　(1)()--..(2),().()-COD12.0g/L,COD87.2%,3.1kg/(m3·d),4kg/(m3·d),,COD97.6%.(3),()-:35℃～38℃,24h,COD12.0g/L,,COD2.0g/L,12h.(4),(),90%,Fe2+,H2S.:1　,,.[J].,1997,18(3):83～85.2　,.()-[J].,2000,(5):43～45.3　EaryLE,KaiD.Chromateremovalfromagueouswastesbyreductivewithferrousiron[J].Environ.Sci.Technol.,1998,(22):972～976.4　,,.H/O[J].,2000,():150～152.47