O3H2O2预处理制药废水的实验研究高健磊

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O3/H2O2高健磊,高爱华,刘 玥,闫怡新(, 450002) :以好氧呼吸速率(OUR)和生化呼吸线为指标,通过正交实验和单因素实验研究了O3/H2O2氧化对克林霉素、左氧氟沙星、阿奇霉素等生产综合废水可生化性提高的影响。结果显示,对提高废水可生化性影响程度的因素由大到小的顺序为:pH值、反应时间、H2O2投加量、O3流量。在pH值为10.7,反应时间为20min,H2O2投加量为3.9mmol/L,O3用量为4.2mmol/L时,废水的OUR值从0提高到0.578mg/(g·min),可生化性得到改善,能够满足后续生物处理需要。:O3/H2O2氧化;制药废水;可生化性;好氧呼吸速率:X787   :A   :1003-3467(2008)10-0021-04ExperimentalInvestigationonPretreatmentofPharmaceuticalWasteWaterbyO3/H2O2ProcessGAOJian-lei,GAOAi-hua,LIUYue,YANYi-xin(InstituteofEnvironmentandWaterConservancy,ZhengzhouUniversity,Zhengzhou 450002,China)Abstract:Oxygenuptakerate(OUR)andbiodegradationrespirationdigrapharetheindextoevaluatebiodegradabilitythroughorthogonalexperimentaswellassingle-factortests.TheresultsoftheorthogonalexperimentshowthemaininfluencingfactorsandtheirsequencesarethatpHvalueofthewastewaterreactiontimeH2O2doseO3gasflow.Theoptimumconditionaregotthroughaseriesofsingle-factortestswhichshowthatunderconditionsofpHvalue10.7,reactiontime20min,H2O23.9mmol/L,O34.2mmol/L,OURcouldbeincreasedfrom0to0.578mg/(g·min).Thebiodegradabilityofpharma-ceuticalwastewaterisimproved,whichcanmeettheneedoffollow-upbiologicaltreatment.Keywords:O3/H2O2oxidation;pharmaceuticalwastewater;biodegradability;oxygenuptakerate  、COD、、、pH、[1],,。O3H2O2OH·,、,,[2]。、、[3]。、、,O3/H2O2,。1 1.1 1,、,PVC;9L(2m,80mm);(CF-G-3-010g)。,O3。H2O2,H2O2,O3。:(30%),,,  :2008-06-10  :(1963-),,,,,:(0371)63888320。·21·10              :O3/H2O2DOI:10.14173/j.cnki.hnhg.2008.10.013,(98%),,,。1 1.2 ,、、2∶3∶1,1。pH6.5~7.5,COD12000~23000mg/L,,OUR()0。1 、、、、DMF、、DMF、、、、、、CODmg·L-130000~ 400007000~ 900025000~ 35000pH10~113.5~4.59~101.3 ,O3/H2O2pH、、H2O2O3。,。,OUR。1.4 、。(OUR),。20℃±1℃,,HANNA(HI9145),[4]。pHCOD,pHHANNApH(HI8424NP),COD。2 2.1 O3/H2O2pH、H2O2、O3,L9(34),2,3。2 O3mg·min-1minH2O2mmol·L-1pH181.7102.53.7291.7305.96.83101.7609.8113 O3mg·min-1minH2O2mmol·L-1pHOURmg·(g·min)-1181.7102.53.70.164281.7305.96.80.253381.7609.8110.19491.7105.9110.227591.7309.83.70.184691.7602.56.80.2067101.7109.86.80.2298101.7302.5110.2059101.7605.93.70.147k10.2020.2070.1920.165k20.2060.2140.2090.229k30.1940.1810.2010.207R0.0120.0330.0170.064  ,:pHH2O2O3。pH:k2k3k1;:k2k1k3;H2O2:k2k3k1;O3:k2k1k3。,。2.2 2.2.1 pH值对O3/H2O2氧化效果的影响O381.7mg/min,H2O25mmol/L,20min,pH4.0、6.5、8.7、10.7、11.7。OUR,2。·22·HENANCHEMICALINDUSTRY             2008 252 pH  2,。pH,,OUR;pH10.7,,OUR。pH10.7,,OUR0.362mg/(g·min),COD26.9%。pH,pH10.7,pH8.0,pH。,pH。pH11.7,pH9.5,,pH11.7,OUR。2.2.2 反应时间对O3/H2O2氧化效果的影响pH6.8,O381.7mg/min,H2O25mmol/L,0、10、20、30、40、50min,。OUR,3。3   3,,,OUR0,。,0~20minOUR,20minOUR,,。20min,OUR0.268mg/(g·min),COD10.4%。2.2.3 H2O2投加量对O3/H2O2氧化效果的影响pH6.8,O381.7mg/min,20min,H2O20、1.5、2.5、3.9、4.9、7.3mmol/L,。OUR,4。4,,。H2O20~3.9mmol/L,OUR,H2O2,O3/H2O2O3。H2O23.9mmol/L,OUR。H2O23.9mmol/LOUR0.299mg/(g·min),COD10.1%。2.2.4 O3流量对对O3/H2O2氧化效果的影响pH6.8,H2O25mmol/L,20min,O367、82、92、102、110、112mg/min,,OUR,5。·23·10              :O3/H2O24 H2O25 O3  5,,O367~92mg/minOURO3,O392mg/min,OUR。O3,,O3,O3,。2.2.5 优化条件效果实验:pH10.7,20min,H2O23.9mmol/L,O34.2mmol/L(O392mg/min)。OUR00.578mg/(g·min),COD23.3%,,。3 O3/H2O2,pH,、H2O2、O3。pH,11OUR,pH;0~20minOUR,20minOUR;H2O2OUR,3.9mmol/L,OUR,3.9mmol/LOUR;O392mg/min,OUR,92mg/minOUR。:pH10.7,20min,H2O23.9mmol/L,O34.2mmol/LO392mg/min,OUR00.578mg/(g·min),。:[1] KǜmmererKA,Al-Ahmad,V,MerschS.Biodegradabili-tyofsomeantibioticseliminationofthegenotoxicityandaffectionofwastewaterbacteriainasimpletest[J].Chemosphere,2000,40(7):701-710.[2] 谢甫钦柯,利荣诺夫,刘存礼.臭氧化法水处理工艺学[M].北京:清华大学出版社,1987.102-105.[3] 钟 理,陈建军.高级氧化处理有机污水技术进展[J].工业水处理,2002,22(1):1-4.[4] 刘 红,闫怡新,王文燕,等.低强超声波改善污泥活性[J].环境科学,2005,26(4):125-126.·24·HENANCHEMICALINDUSTRY             2008 25

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