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1、PART1INTRODUCTIONTOENVIRONMENTALENGINEERINGUnit1Text:EnvironmentalEngineeringWhatIsThisBookAbout?Theobjectiveofthisbookistointroduceengineeringandsciencestudentstotheinterdisciplinarystudyofenviroomentslproblems:theircauses,whytheysreofconcern,andhowwecsncontrolthem.Thebooki
2、ncludes:?Descriptionofwhatismeantbyenvironmentsndbyenvironmentalsystems?Informationonthebasiscausesofenvironmentaldisturbances?Basisscientificknowledgenecessarytounderstandthenatureofenvironmentalproblemsandtobeabletoquantifythem?Currentstateofthetechnologyenvironmentalcontr
3、olinitsapplicationtowater,airandpollutionproblems?Considerablegapsinourcurrentscientificknowledgeofunderstandingandcontrollingmanyofthecomplexinteractionsbetweenhumanactivitiesandnature?Manyenvironmentalproblemswhichcouldbeeliminatedorreducedbytheapplicationofcurrenttechnolo
4、gy,butwhicharenotdealtwithbecauseofsociety’slackofwilltodoso,orinmanyinstancesbecauseofalackofresourcestodoso.SomeImportantDefinitionsWheretheyarefirstusedinthisbook,definitionsareintroducedinblockform,asshownhere,orprintedinboldtype.Environmentisthephysicslandbiotichabitatw
5、hichsurroundsus;thatwhichwecansee.hear,touch,smell,andtaste.System.accordingtoWehster’sdictionaryD,isdefinedas“asetorarrangementofthingssorelatedorconnectedastoformaunitororganicwhole;as,asolarsystem,irrigationsystem,supplysystem,theworldoruniverse”.Pollutioncanbedefinedasan
6、undesirablechangeinthephysical,chemical,orbiologicalcharacteristicsoftheair,water,orlandthatcanharmfullyaffectthehealth,survival,oractivitiesofhumansorotherlivingorganisms.WhenthegoalofimprovingenvironmentalqualityistakentobeimprovinghumanwellPART1INTRODUCTIONTOENVIRONMENTAL
7、ENGINEERINGUnit1Text:EnvironmentalEngineeringWhatIsThisBookAbout?Theobjectiveofthisbookistointroduceengineeringandsciencestudentstotheinterdisciplinarystudyofenviroomentslproblems:theircauses,whytheysreofconcern,andhowwecsncontrolthem.Thebookincludes:?Descriptionofwhatismean
8、tbyenvironmentsndbyenvironmentalsystems?Informationonthebasiscausesofenviro
