Abstract
Witheconomicdevelopmentandthequickeningofurbanization,thedepravationofenviromentalqualityhas
resourcesbecomeanimportantpublicourissue.Theinlackofwaterfirsthasbeenaseverechallengefor
overseasgovernmentthetwentycentury.Bothdomesticandexperiencehasshownthatthereclamation
effectivemeansofresolvingthewastewaterandreuseofurbanwastewaterwasan
problem,amelioratingenvironmentalconcerns,andaddressingtheissueseekingoutnewwaterreSourses。Atthepresenttimethereisconsiderablepublicfocusonsecurityissuesrelatingtoreclaimedwater.Bioaccumulation,carcinogenicity,teratogenecity,mutagenesis,andchronictoxicityoftrace,poisonousorganiccontaminationmaketheresearchofassessingtheecologicalsafetyandhealthriskofthesematerialsatopprojectinthefieldofenvironmentalsciences.
Thispaperinvestigatesthepresenceoftrace,poisonousorganicpollutantsindifferenttreatmentstagesofthewaterworksintwosewagetreatmentplantsandinthewaterenteringintotheNorthof
organicpollutantsfromaChina.Wedissusstheefficiencyoftheremovaloftypicalwastewatertreatmentprocesscurrentlybeingused,andevaluatethesecurityoftheoutputwateroftwotreatmentplants.First,Ianalysedthetrace,poisonousorganiccontamination,bothqualitativelyandquantitatively,bymassspectrometry(GC/MS)andgaschromatography,usinganelectroncapturedetector(GC/1.t—ECD).Second,1
Theestrogeniceffectandtestedtheintegrativetoxicitybybiologicalmethodseffectofthewater
bysamplesusingandthethedioxin—likeweresedimentationsamplesevaluated
7-Ethoxyresorufin—O—Diehthylase(EROD)assay,andrecombinantyeastassay.Finally,Icomparedtheresultbychemicalandbiologicalmethodsoftwoadvancedtreatmentproceduresintwowastewatertreatmentplants.Ihopetoestablishtheevaluativesystemofreclaimedwastewaterandcriterion.Resultsindicatedthat:(1)thepreferablerelativityof∑TEQbyGC—MSandEROD,riS0.9;(2)theefficiencyoftheremovaloforganicpollutantsfromroutinetreatmentstageshavesomeeffect,butthetypicalwastewatertreatmentstages
’cImeorderofmagnitudeasarcevidenteffect,inthecomparedtotheworld.theeffluentof1imeandtheconcreteJJ