废水处理DrainageSystem1、微生物废水处理概述:微生物废水是指含有大量细菌、病毒、寄生虫卵以及部分化学试剂的废水,主要为医院、疾病预防控制中心、动物防疫站、出入境检验局、生物研究所、动物养殖机构等科研院所、检测机构微生物实验室排放的生物废水。原理:将消毒剂投加到废水中,通过接触氧化法,对污水进行消毒、除色、除臭、降低水中COD(化学耗氧量)、BOD(生物耗氧量)及氧化金属离子和各种有害物质,从而使处理后的污水达到国家排放标准。NaClO溶液工艺: 2、物化实验废水处理概述:物理化学实验中产生许多含大量酸碱物质,如果这些废弃物直排至市政管网,将对土壤及河流造成巨大的污染,所以必须对废水进行处理后排放。原理:把中和剂加入到废水中,通过酸碱中和反应及产生沉淀除去,以达到除污标准。适用的废水:大专院校、物理化学实验 MicrobialwastewaterOverview:Microbialwastewatercontainsalotofbacteria,viruses,parasiticovumandchemicalreagentsthatwasmainlydischargedfromthelaboratoryofhospitals,CDC,AnimalEpidemicPreventionAuthority,Entry-exitInspectionandQuarantineBureau,InstituteofMicrobiologyandtheanimalbreedingandresearchinstitutes.Principle:ThewastewaterwasdecontaminatedbybiologicalcontactoxidationanditbereducedpollutionlevelofCOD(ChemicalOxygenDemand),BOD(biologicaloxygendemand),theoxidationofmetalionsandvariousharmfulsubstances.PhysicalandchemicalwastewaterOverview:Lotsofwasteacidandalkaliwereexhaustedinphysicalandchemicalexperiments.Ifthesewastesweredirectlyexhaustedintomunicipalnetwork,thesoilandriverswillbeheavilypolluted.Sothewastewatershouldhavetreatment. Principle:Byputtingsomeneutralizingagentintothewastewater,inwhichacidandalkalireactedandtheprecipitateberemoved,thewastewatershouldmeettherequirementofenvironmentalprotection. Processingwastewater:BefromCollegesanduniversities,PhysicalChemistryExperiment.