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      ΪʲôCODBODdzõȾָ
      Դ  |  1628   |  ڣ2019-12-04
      ʵCOD(ѧ)ֻӦˮлܱʾˮолԭʵ޻磺ƵˮекͳûȫȥĻˮӴˮCOD(ѧ)ܻᳬ ˮΪʹˮʵִŷˮÿڶˮʼ豸ˮˮʼ豸õӦĴʹˮָﵽҪٽһЩˮʼָҲҪָCODBODôʲôϵҽΪʲôˮȾָ곣CODBODԼCODBODϵ ʲôCOD COD(ѧ)һһǿˮʱĵӳˮȾij̶ѧԽ˵ˮлȾԽCODmg/LʾͨˮʼCODֵˮʿɷΪһͶCOD15mg/Lܴﵽˮ׼ֵڶˮΪˮCOD20mg/LCOD30mg/LCOD40mg/LȾˮCODֵԽȾԽ BODʲô BOD()ָˮ΢ֽлﻯѧܽŨΪʹBODֵпɱһ涨һʱⶨˮܽһʱΪBOD5ʹBODֵԽ֤ˮкелԽȾҲԽ BODһָֻڼˮлȾлﶼԱ΢ֽ˹ҪˮܽԹ΢ҪˮʹȾ״̬ CODBODʲôϵ ˮлϰЩлʽһȺʱֺҩƷоелʶжһǶ̼Ǿлܹѧ΢ǵֱ̼γ޶޺Ķ̼ˮˮелʲڻѧлжҪˮелĵҲ֮dzϵˮûѧҩĵΪCOD(ѧ)ˮ΢ĵΪBOD() COD(ѧ)BOD()ܹۺԵطӳˮлҲȽ϶ⷽ϶ʱھõ˱㷺ˮʼΪˮʼҪָҲǻˮҪˮǴȽϵ ʵCOD(ѧ)ֻӦˮлܱʾˮолԭʵ޻磺ƵˮекͳûȫȥĻˮӴˮCOD(ѧ)ܻᳬ ˮелеĿԱ(ǺҴ)еֱֻܲ(״)һлDzܱһһĶ(ijЩԼ)԰ˮелֳɶͲлϰCOD(ѧ)ϱʾˮелBOD()ˮпオлCODBODIJֵɱʾˮвオл
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