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时间:2020-03-25
《O工艺处理化学制药工业高盐有机废水.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、INDUSTRIALWATER&WASTEWATER工业用水与废水Vo1.43No.3Jun.,2012A2/O工艺处理化学制药工业高盐有机废水章程宏,一,彭书传,陈金思2(1.合肥工业大学资源与环境工程学院,合肥230009;2.合肥徽锐工程科技有限公司,合肥230009)摘要:采用预处理(蒸发脱盐、中和、混凝、沉淀)一缺氧一厌氧一好氧一二次混凝沉淀的组合工艺,可以有效去除制药工业废水的有机污染物,COD甲苯、氨氮去除率分别为98.8%、99.6%和61.4%,出水满足GB8978—1996{污水综合排放标准》一级标准的要求。缺
2、氧、厌氧、好氧工序的污泥单独回流,可以减少茵群混杂,利于优势微生物的生存。厌氧单元是去除有机污染物的主要工序.有机物削减比例达70.1%由于废水含盐量高.污泥沉降性能不佳.二沉池出水增加混凝沉淀工序.这是废水稳定达标的重要保障关键词:制药废水;高盐废水;厌氧;好氧;混凝沉淀中图分类号:X787.031文献标识码:A文章编号:1009—2455(2012)03—0031—04TreatmentofhighsalinityorganicwastewaterfrOmchemicalpharmaceuticaljndustryZHANGC
3、heng—hong一,PENGShu—chuan,CHENJin—si(J.SchoolofResourcesandEnvironmentalEngineering,HefeiUniversityofTechnology,Hefei230009,China;2.HefeiVasunriseEngineeringTechnologyCo.,Ltd.,Hefei230009,China)Abstract:Thecombinedprocessofpretreatment(evaporationdesalination,neutraliz
4、ation,coagulation,sedi‘mentation)一anoxic—anaerobic-aerobic-secondarycoagulationprecipitationcouldeffectivelyremovetheorganicpollutantsinwastewaterfromchemicalpharmaceuticalindustry,theremovalratesofCODc.tolueneandammonianitrogenwere98.8%.99.6%and61.4%respectively.thee
5、fluentwaterqualitymetthespecificationforgrade1inGB8978-1996IntegratedWastewaterDischargeStandard.Thesludgeinanoxic,anaerobicandaerobicstagesflewbackindependently,whichreducedthemixingofmicrobegroups,andwasbeneficialtothesurvivalofdominantbacteria.Anaerobicstagewasthem
6、ainprocedureoforganicpollutantsremoval,andtheremovalratereached70.1%.Asthesaidkindofwastewatercontainedahighconcentrationofsalt,thesedimentationperformanceofthesludgewasnotgood,therefore,settingc0agulati0n—sedimentati0ntankbehindthesecondarysedimentationtankisanimport
7、antmeasuretoensuretheeffluentwaterqualitymeetthedischargestandardsteadily.Keywords:pharmaceuticalwastewater;highsalinitywastewater;anaerobic;aerobic;coagulationsedimentation化学原料药合成过程一般包括反应、分离、结EDS、膜分离等方法分离出废水中的盐分。晶、过滤、洗涤、干燥等工序,其中结晶、过滤、文献『1-6]对高盐度废水处理方法作了系统分洗涤、尾气净化工序排放
8、的是高浓度含盐有机废析.重点论述了盐分对好氧、厌氧工艺的影响,耐水.尾气净化工序生成含盐有机废液。原料药合成盐微生物驯化以及盐分对废水脱氮除磷的影响。董生产废水盐分含量很高.甚至达到30%,几乎接志义等[]以医药原料药废水处理为案例进行了分近饱和.
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