Water_Pollution水污染英文PPT 27页

WaterPollutionMadeby:TheSun WaterPollutionintroductionWaterpollutionisthecontaminationofwaterbodies(e.g.lakes,rivers,oceans,aquifersandgroundwater).Waterpollutionoccurswhenpollutantsaredischargeddirectlyorindirectlyintowaterbodieswithoutadequatetreatmenttoremoveharmfulcompounds.Waterpollutionisamajorglobalproblemwhichrequiresongoingevaluationandrevisionofwaterresourcepolicyatalllevels(internationaldowntoindividualaquifersandwells).Ithasbeensuggestedthatitistheleadingworldwidecauseofdeathsanddiseases,andthatitaccountsforthedeathsofmorethan14,000peopledaily. AllaboutWaterpollution2.influence3.solution1.Cause Nowadays,waterpollutionisdeteriorating.Rivers,lakesandevenoceansallovertheworldarebecomingpollutedbygarbageanddangerouschemicals.OilandotherChemicalscankillfishandmakewaterunsafefordrinking.Beforewethinkaboutwhatshouldwedotosolvethisproblem,weshouldfirstknowwhatcausetheproblem.Cause 1.NaturalpollutionDuetothedissolutionofgeological,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-madepollutionindustrialwastewater(工业废水)Dailylifesewage(生活污水)Pesticideandfertilizerpollution（农业化肥污染）Thesedodamagetothequalityofwater.BACK WaterPollutiondistribution Waterpollutionisoneofthemostseriousproblemsthatmankindfacestoday.1.Forbusinessorindustry,itaffectsproducts’quality,increasedcorrosionofproducts,andsoon.2.Forindividual,itdoesdamagetothehuman’shealthy.Therearemanyinfluencethatwecan’tdescribethembywords.SoIwillshowyousomepictures.Influence Dischargingsewageintowater Waterhyacinth水葫芦 RedtidereasonsofformredtideWatereutrophicationMeteorologicalandhydrologicalandphysicalandchemicalpropertiesoftheseaDamagesofredtideDamageHarmtohuman"shealthDestructionofMarinefisheryresourcesandaquaticproductsHarmtohumanhealth Thegarbageinwater Back WhatcanWeDo?WaterPollutionStopPollutionEnvironmentalProtectionWaterConservation Everyonewantstoreducepollution.Butthepollutionproblemisascomplicatedasitisserious.WhatshouldwedotosolvethisproblemGradually?Solution Forgovernment1Toestablishtheurbansewagetreatmentsystem(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） ForBusinessToreducewaterconsumption(减少耗水量)Tobuyequipmentofsewagetreatment(买污水处理设备)Don‘tdischargesewageintowater.(不要乱排污水)4.Toestiblishthewaterrecyclingsystem Forindividual1.Don’tusecleanerconcludePollution.2.Don’tthrowthegarbageintotheriverorsea.3.Tellthepersonaroundyoutoprotectthewater Legislation:JustlikethenewTrafficLawsactedin2013;Strengthenthepunishmentoftheenterprisesorindividualswhohavepolluted.WaterPollutionStopPollution Wastewatertreatment:AnydischargeofwastewaterintoanywaterbodymustcomplywiththeregulationsandstandardsoftheStateforradioactiveprotection.WaterPollutionStopPollution SaveWaterandReducetheWasteofWater:1.Turnoffthewatertapwhenyouleave.2.Washingclothesmanuallyinsteadofwashingmachine.3.Collecttherainningwaterwhenraining.4.Donotplaywaterforfun.5.Choosetheequipmentlabeled"watersaving".6.Reducethetimeshavingbath.WaterPollutionWaterConservation WaterPollutionWaterConservation WaterPollutionWaterConservation WorldWaterDayhasbeenobservedon22Marchsince1993whentheUnitedNationsGeneralAssemblydeclared22MarchasWorldDayforWaterWaterPollutionWorldWaterDay 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水利发展与和谐社会2006:WaterandCulture水与文化WaterPollutionWorldWaterDay Ifeveryonecanmakeacontributetopreservingwaterresources,Ibelievethatourworldwillbecomemoreandmorebeautiful!WaterPollutionThankyou!