常温常压水解预处理高盐度高质量浓度有机磷农药废水

39220114JOURNALOFZHEJIANGUNIVERSITYOFTECHNOLOGYVol．39No．2Apr．20112009-09-28Y5060261975—[e-mail]．121111．3100322．310027CODcr．．pH．CODcr45．5%43．5%80%．pHX703A1006-4303201102-0127-04Pretreatmentofhigh-salinityandhigh-concentrationorganophosphoruspesticidewastewaterbyhydrolysismethodatnormaltemperatureandpressureLIULi-fen12MAOPei-qing1XUDe-zhi1RUANHui-min11．StateKeyLaboratoryBreedingBaseofGreenChemistry-SynthesisTechnologyZhejiangUniversityofTechnologyHangzhou310032China2．DepartmentofChemicalandBiologicalEngineeringZhejiangUnivercityHangzhou310027ChinaAbstractCombinationofacidicandbasichydrolysisprocessesatnormaltemperatureandpressurewasproposedtopretreatthehigh-salinityandhigh-concentrationorganophosphoruspesticidewastewatersuchasthechlorpyrifosproductionwastewater．Thiscannotonlyremovethegreatmajorityoforganicsaltsinwastewaterandrecoverthematerialof356-trichloropyridin-2-olbutalsoreducetheCODcrconcentrationofwastewaterwhichmadetheelectrodialyticdesalinationprocesseasy．Thecyclizationwastewaterwastreatedfirstwithacidichydrolysisandthenbybasichydrolysiswhilethecondensationwastewaterwashydrolyzedfirstwithalkaliandthenwithacid．TheresultsshowedthatthepHofwastewaterhadanimportantimpactonthehydrolyzationprocess．AfterhydralysisatnormaltemperatureandpressuretheCODcrrejectionratiosofcyclizationwastewaterandcondensationwastewaterwere45．5%and43.5%respectivelyandtherecoveryratioof356-trichloropyridin-2-olsaltincyclizationwastewatermayreach80%．Keywordshigh-salinityhigh-concentrationchlorpyrifosproductionwastewaterhydrolysispH、、1-2．、、3-4、、35-9、SBR、MBR、A/O、UASB、A2/O10-174．COD50～80g/L3～5g/L10%～15%COD100～180g/L15%～25%．——18．—20～40．—COD200～400．、、．——．、、19．、、20-25．．26-27、、COD．11．1、12．1Table1ThecharacterofcyclizationwastewaterCODcr/g·L－1/%/%pHB/CNaCl/%CuCl/%100～1800．50．852．0～3．010～120．15～0．2015～250．252Table2ThecharacterofcondensationwastewaterCODcr/g·L－1/%OO-/%pHB/CNaCl/%Na2S/%50～800．5～0．850．5～1．09～100．15～0．2010～172．0～3．01．2、CaO、、、、、110-．1．3．．OO-Na2S．pH7．24h2—520%NaOH、．CaO24h．1．4CODcrGB11914—1989《》．28．·821·3922．1pH、1NaCl．CODcrNaCl．pH、．1pH．12≤pH≤6CODcrpHCODcrpH．2CODcr．pH＜2CODcrCODcr．pH=23pH．35≤pH≤10CODcrpHCODcrpH．4CODcr．pH＞10CODcr．pH＞10．pH=2pH=9CODcr45．5%83．9%．2．2pH、2OO-NaCl．Na2SH2SOO-．pHpH≈7．5pH．8≤pH≤12CODcrpHCODcrpH．OO-OO-·921·26CODcr．pH＞12CODcr．OO-pH＞12OO-．pH=13．7pH．1≤pH≤6CODcrpHCODcrpH．2CODcr．pH＜1CODcr．．7pHFig．7EffectofpHontheacid-hydrolyzationprocessofcon-densationwastewaterpH=13pH=1CODcr43．5%80．6%．3、1CODcr．2pHCODcr．3CODcr45．5%83．9%．4CODcr43．5%80．6%．1．M．2002302-316．2．M．2002424．3．J．2000518-23．4．J．20013141-4．5．J．199315588-91．6．J．199615163-68．7．ClO2J．2003305561-569．8．J．200534652－54．9．Fe2+-H2O2J．200523588-89．10．J．2004241209-211．11．J．200222111-4．12HAMODAMFAL-ATLARIS．EffectofhighsodiumchlorideconcentrationonactivatedsludgetreatmentJ．WaterScienceandTechnology199531961-72．13DALMACIJIAB．Purificationofhigh-salinitywastewaterbyacti-vatedsludgeprocessJ．WaterScienceandTechnology1996302295-298．173·031·39．3Matlab．MatlabPID．、．．．1．M．2007．2．M．2009．3．—MATLABM．2000．4．MATLABM．2009．5．MATLABPIDJ．2006264511-514．6．MATLABPIDJ．200528961-63．檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼檼13014YECELTR．TheeffectofinorganicsaltsontheactivatedsludgeprocessperformanceJ．WaterScienceandTechnology19892399-104．15SHIMSHONBASHERB．BiologicaltreatmentofahighsalinitychemicalindustrialwastewaterJ．WaterScienceandTechnolo-gy1993277105-112．16WOOLARDCR．BiologicaltreatmentofhypersalinewastewatersJ．DAI1993582645-2833．17KARGIFUYGURA．BiologicaltreatmentofsalinewastewaterinanaeratedpercolatorunitutilizinghalophilicbacteriaJ．Environ-mentTechnology199617325-330．18．J．200321122-25．19．M．2001421-488．20．J．200323340-43．21．J．20031115-19．22．J．2000316721-724．23ALVAREZFALVAREZRCOCAJetal．Salicylicandpro-ductionbyelectrodialysiswithbipolarmembraneJ．JournalofMembraneScience1997123161-69．24MONTIELVGARCIAVGONZALEZ-GARCIATetal．Are-coverybymeansofelectrodialysisofanaromaticacidfromasolu-tionwithahighconcentrationofsulphatesandphosphatesJ．JournalofMembraneScience19981402122-125．25．J．2002335537-539．26．J．19952614-8．27．J．199837115-17．28．356--2-J．1995341114-15．·371·2Matlab