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1、传染病院污水处理设计论文题目:传染病院污水处理设计学生姓名:韩祖荣班级:环境科学0602传染病医院污水的性质与一般的生活污水相似,但比生活污水所含的成分更为复杂,比较突出的是陕院污水中含有大量的病原性微生物、有毒、有害的物理化学污染物和放射性污染等,具有空间污染,急性传染和潜伏性传染等特征,不经有效处理会成为一条疫病扩散的重要途径,并严重污染环境。本设计针对小型传染病庾院污水处理,主要构筑物有格栅、沉砂池、曝气生物滤池、消毒池。格栅用以去除废水中较大的悬浮物、漂浮物、纤维物质和固体颗粒物质。沉砂池用以去除相对密度
2、2.65、粒径0.2価以上的砂粒。曝气生物滤池主要去除污水中的有机物和无机物,它具有出水水质好;运行可靠性高,抗冲击负荷能力强;无污泥膨胀;容积负荷高且省去二沉池和污泥回流,占地面积小等优点。消毒池用于去除污水中存在的细菌和病毒。进入污水处理系统的水质为ss二120〜180mg/L,BOD二160〜200mg/L,C0D=300〜360mg/L,NH:-H=120〜160mg/L污水经本工艺处理后水质可达国家二级标准。即ss<30,B0D<30,C0D<100,NH:-H<25o关键词:传染病院,污水处理,曝气生
3、物滤池。AbstractThenatureofthesewagefrominfectiousdiseaseshospitalissimilartodomesticsewageingeneralButtheIngredientsaremorecomplicatedthandomesticsewage.Obviously,thehospitalsewagecontainslargeamountsofpathogenicmicroorganisms,toxicandharmfulphysicalorchemicalco
4、ntaminants,radioactivecontaminantsect.Thecharacteristicsofthehospitalsewageareasfollows:spacepollution,acuteinfection,latentinfectionect.Itwillbecomeasignificantwaytospreaddiseasewithouteffectivetreatment,andwillleadtoseriousenvironmentalpollution.Thedesignis
5、focusonthewastewatertreatmentofsmall-scaleinfectiousdiseasehospital.Themainstructuresaregrille,gritchamber,aeratedfilter,disinfectionpool.Grilleisusedtoremovethelargersuspendedsolids,floatingsubstances,fibermaterialandsolidparticulatesubstancesinthewastewater
6、Gritchamberisusedtoremovethesandwhichrelativedensityis2.65andparticlesizeis0.2mmormore.Aeratedfilterismainlyusedtoremoveorganicandinorganicsubstancesinthewastewater,ithassomeadvantages,namely:ithasgoodeffluentquality;highreliabilityinoperation,highcapabilityo
7、fshockload;nosludgebulking;highvolume;nosecondarysettlingtankandsludgereturn;andsmallfootprintect.Disinfectionpoolisusedtoremovethebacteriaandviruseswhichareexistinthewastewater.Thequalityofwastewaterthatdischargedintothesewagetreatmentsystemcouldbedescribedf
8、orss=120〜180mg/L,BOD=160〜200mg/L,COD二300〜360mg/L,NH3-H=120〜160mg/L・Aftertreatedbythisprocess,thequalityofwastewatercoulduptothenationalstandards.Namely:ss<30,BOD<30,COD<100,NH3-H<25.Keywo