廢水處理DrainageSystem1、微生物廢水處理概述:微生物廢水是指含有大量細菌、病毒、寄生蟲卵以及部分化學試劑的廢水,主要為醫院、疾病預防控制中心、動物防疫站、出入境檢驗局、生物研究所、動物養殖機構等科研院所、檢測機構微生物實驗室排放的生物廢水。原理:將消毒劑投加到廢水中,通過接觸氧化法,對污水進行消毒、除色、除臭、降低水中COD(化學耗氧量)、BOD(生物耗氧量)及氧化金屬離子和各種有害物質,從而使處理后的污水達到國家排放標準。NaClO溶液工藝: 2、物化實驗廢水處理概述:物理化學實驗中產生許多含大量酸堿物質,如果這些廢棄物直排至市政管網,將對土壤及河流造成巨大的污染,所以必須對廢水進行處理后排放。原理:把中和劑加入到廢水中,通過酸堿中和反應及產生沉淀除去,以達到除污標準。適用的廢水:大專院校、物理化學實驗 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.