Water_Pollution水污染英文PPT.ppt

WaterPollution,Madeby:TheSun,WaterPollutionintroduction,Waterpollutionisthecontaminationofwaterbodies(e.g.lakes,rivers,oceans,aquifersandgroundwater).Waterpollutionoccurswhenpollutantsaredischargeddirectlyorindirectlyintowaterbodieswithoutadequatetreatmenttoremoveharmfulcompounds.Waterpollutionisamajorglobalproblemwhichrequiresongoingevaluationandrevisionofwaterresourcepolicyatalllevels(internationaldowntoindividualaquifersandwells).Ithasbeensuggestedthatitistheleadingworldwidecauseofdeathsanddiseases,andthatitaccountsforthedeathsofmorethan14,000peopledaily.,AllaboutWaterpollution,2.influence,3.solution,1.Cause,Nowadays,waterpollutionisdeteriorating.Rivers,lakesandevenoceansallovertheworldarebecomingpollutedbygarbageanddangerouschemicals.OilandotherChemicalscankillfishandmakewaterunsafefordrinking.Beforewethinkaboutwhatshouldwedotosolvethisproblem,weshouldfirstknowwhatcausetheproblem.,Cause,1.Naturalpollution,Duetothedissolutionofgeological,atmosphericprecipitationleaching,erosionontheground,mixthevariouspollutantsintothewater因地质的溶解作用，降水对大气的淋洗、对地面的冲刷，挟带各种污染物流入水体而形成,2.Man-madepollution,industrialwastewater(工业废水)Dailylifesewage(生活污水)Pesticideandfertilizerpollution（农业化肥污染）,Thesedodamagetothequalityofwater.,BACK,WaterPollutiondistribution,Waterpollutionisoneofthemostseriousproblemsthatmankindfacestoday.1.Forbusinessorindustry,itaffectsproductsquality,increasedcorrosionofproducts,andsoon.2.Forindividual,itdoesdamagetothehumanshealthy.Therearemanyinfluencethatwecantdescribethembywords.SoIwillshowyousomepictures.,Influence,Dischargingsewageintowater,Waterhyacinth,水葫芦,Redtide,reasonsofformredtideWatereutrophicationMeteorologicalandhydrologicalandphysicalandchemicalpropertiesoftheseaDamagesofredtideDamageHarmtohumanshealthDestructionofMarinefisheryresourcesandaquaticproductsHarmtohumanhealth,Thegarbageinwater,Back,WhatcanWeDo?,WaterPollution,StopPollution,EnvironmentalProtection,WaterConservation,Everyonewantstoreducepollution.Butthepollutionproblemisascomplicatedasitisserious.WhatshouldwedotosolvethisproblemGradually?,Solution,Forgovernment,1Toestablishtheurbansewagetreatmentsystem(城市污水处理系统的建立)2TorestructurtheIndustrial（调整产业结构）3.Todevelopthenewwatersources4.Tostrengthentheplanningandmanagementofwaterresources5.Tocontroltheagriculturalnon-pointsourcepollution（控制农业面源污染）,ForBusiness,Toreducewaterconsumption(减少耗水量)Tobuyequipmentofsewagetreatment(买污水处理设备)Dontdischargesewageintowater.(不要乱排污水)4.Toestiblishthewaterrecyclingsystem,Forindividual,1.DontusecleanerconcludePollution.2.Dontthrowthegarbageintotheriverorsea.3.Tellthepersonaroundyoutoprotectthewater,Legislation:JustlikethenewTrafficLawsactedin2013;Strengthenthepunishmentoftheenterprisesorindividualswhohavepolluted.,WaterPollutionStopPollution,Wastewatertreatment:AnydischargeofwastewaterintoanywaterbodymustcomplywiththeregulationsandstandardsoftheStateforradioactiveprotection.,WaterPollutionStopPollution,SaveWaterandReducetheWasteofWater:1.Turnoffthewatertapwhenyouleave.2.Washingclothesmanuallyinsteadofwashingmachine.3.Collecttherainningwaterwhenraining.4.Donotplaywaterforfun.5.Choosetheequipmentlabeledwatersaving.6.Reducethetimeshavingbath.,WaterPollutionWaterConservation,WaterPollutionWaterConservation,WaterPollutionWaterConservation,WorldWaterDayhasbeenobservedon22Marchsince1993whentheUnitedNationsGeneralAssemblydeclared22MarchasWorldDayforWater,WaterPollutionWorldWaterDay,Themesofwaterdaybyyears2012:WaterandFoodSecurity:TheWorldisThirstyBecauseWeareHungry水与粮食安全2011:Waterforcities:respondingtotheurbanchallenge“城市用水：应对都市化挑战”2010:CleanWaterforaHealthyWorld保障清洁水源，创造健康世界2009:TransWatersSharewater,shareopportunities跨界水共享的水、共享的机遇2008:Sanitation涉水卫生2007:CopingWithWaterScarcity水