共沸蒸馏二效逆流蒸发工艺预处理化学合成制药废水张江洪

-＊张江洪,程　辉,程振林(新乡市环境保护科学设计研究院,河南新乡453000):针对化学合成制药废水成分复杂、浓度高、含盐量高的特点,采用化工行业的蒸馏蒸发工艺对废水中的有机溶剂进行共沸蒸馏,对废水中的盐分进行减压蒸发浓缩、结晶、分离,从而降低废水CODcr的值和含盐量,以利于后续生化处理;该技术可经济有效地处理高浓度高盐分的有机废水,并实现资源回收利用。:共沸蒸馏;减压蒸发;制药废水:X703.1　　　　　　:A　　　　　　:1008-2093(2009)01-0033-031　201.5。、,;,。CODcr,,,,。,[1]。,。1.1　、、、,。,[3]。、1:1　1.2　CODcr,、。77.2℃,70.4℃;82.0℃,76.0℃;40～80℃,。。,10%。,、、。CODcr。,,[1]。[4]、、。。,,。1.3　1:1　,,。,。,。,,33171　200901JournalofHenanMechanicalandElectricalEngineeringCollege　　Vol.17№.1Jan.2009＊:2008-09-16:(1981-),,,,,、。。,,,,,,,、、,,。1.4　2:2　2　。CODcr,,;0.05,0.08[2]。2.1　CODcrCODcr、。CODcr。,,75℃、85℃95℃。2　CODcr2,,CODcr。75℃,CODcr14293mg/L,CODcr73.13%,;85℃95℃,CODcr9131mg/L9311mg/L,CODcr82.49%82.68%,,10℃,CODcr,。,85℃,,。2.2　、,Ⅱ。0.05,0.08。3　3,70℃、80℃、90℃,2735mg/L、2687mg/L、2621mg/L,94.83%、94.91%、95.04%。,,,。4　4,70℃、80℃、90℃,35.05m3/d、51.79m3/d、61.23m3/d,80℃,60℃,20℃,1.2t/h,1.72。34　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　200913　1),。2),85℃,CODcr82.49%,90℃,。3),,。4),,80℃,0.05,0.08,2.15m3/h,1.2t/h,1.72。5),;;、,。(　吕春红):[1],,.[M](、)().:,2000.[2],,.[M].:,1995.[3],.[J].,2005,26(5).[4].[J].,2005,9(9):79-82.StudyonPretreatmentofPharmaceuticalWasteWaterUsingTechnologyofAzeotropicDistillationandCountercurrentEvaporationZHANGJiang-hong,etal(XinxiangDesignandRes.InstituteofEnvironment,Xinxiang453000,China)Abstract:Inaccordancewiththecharacteristicsofcomplicatedcomponent,highorganiccontentsandhighsa-linityofthewastewaterfromchemosyntheticpharmacy,adopttechnologyofdistillationandevaporationtoreduceor-ganicsolventsbyazeotropicdistillation,toconcentrate,crystallizingandseparatesalinitybyevaporation,inordertoreduceCODcrandsalinityandbegoodtosubsequentbiochemicaltreatment.Thetechniquecanbotheffectivelyandeconomicallytreattheorganicwastewaterwithhighorganiccontentsandhighsalinityandrecyclingresources.Keywords:azeotropicdistillation;vacuumevaporation;pharmaceuticalwastewater(上接第7页)[5].[J].,2002,(5).ApplicationofPLConBoilerIgnitionControlSystemYANGJie,etal(HenanMechanicalElectricalEngineering.College,Xinxiang453002,China)Abstract:IntroducedaPLC-basedcontroloftheboilerignitionautomaticcontrolsystemusingahigh-per-formanceultravioletflamedetectorandamplifier,toachievelong-distancegasignition,flame-linedetection,a-larmandinterlockingprotection,improvedtheboilerignition,workingsecurityandtheefficiencyofproduction.Keywords:boilerignition;PLC;ultravioletamplifiers;automaticcontrol35:-