teammembersteammembers1.Theloseoflivingenvironmentenclosingtideland,Marine、coastalprojectandwaterwaydredgingactivitiesarethecauses.thus,thenormalactivityofMarinelifeisSeriouslyinterfered,sometimesevenmakeMarinebiologicalhabitatcompletelyextincted.Andthedeclineinthenumberofmangroveisthebestexample.1.Theloseoflivingenvironme2.overfishingandilleagallytradebecausealotofMarineanimalhasveryhighornamentalvalueorcanbetreatedasartcollection,andwithnutritionalvalue,peoplearedrivenbyintereststofishandevenillegallycatch.What'smore,Marinefishingvesselsincreaseddramatically,fishingsegmenthasimprovedsteadily.thesecauseseriousdestructionoftheresourcesandevenmakethemdieout.2.overfishingandilleagallyt3.alienspeciesinvasionwiththedevelopmentofChina'soceantransportation,Thespreadofbreeding,andsoliciting,foreignMarinespecies'quantityincreasedsharplyresultingintheMarineecologicalsystemstructure'simbalance,functiondegradationlossofdiversity,whichmakesChineseoceanenvironmentfacesincreasingpressureofintrusion.3.alienspeciesinvasionwith4.MarineenvironmentpollutionOceanoilleak,Marinetransportation,variousland-sourcedpollutants(mainlycoastalindustrialwastewaterandlifesewage)dischargedintothesea,aggravatingtheMarineenvironmentpollution,andtheMarineecologicalenvironmenthasdeteriorated.4.Marineenvironmentpollution海洋污染英文演講稿課件海洋污染英文演講稿課件海洋污染英文演講稿課件Thefivewastewaterdischargedintotheocean?First,thelow-levelradioactivewastewaterTheso-calledlow-levelradioactivewastewaterisalitercontainedradioactivitylessthan10(-5)CuriewastewaterThesecond,containingtheeasilydegradableorganiccompoundsandheavymetalsinwastewaterEasilydegradableorganicmatter,microorganismsundernaturalconditionsisdifficultdescendingdecompositionoforganicmaterialoccursinthenaturalenvironmentcanbemaintainedindefinitelyanddisseminated,andthusaseriousimpactonthemarineenvironmentandecologicalThefivewastewaterdischargedThird,medicalsewagecarryingpathogens,domesticsewageandindustrialwastewaterPathogens,infectiousagents,includingpathogens,diseaseeggs,viruses.Pathogenscansurviveinthewatercanenterthebodythroughthefoodchain,whichmakeyousickfourth,Industrialwastewatercontainingorganicmatterandnutrients,sewage.Wastewatercontainingorganicandnutrientsubstancesthatcontainprotein,fat,aminoacids,carbohydratesandotherozone-depletingorganicmatterandnitrogen,phosphorusandothernutrientsinwastewaterThird,medicalsewagecarryingFifth,theheatedwasteHeatedwastewateremissionsfromthermalpowerplants,nuclearpowerplants,petrochemical,nonferrousmetalsmeltingandotherindustrialprocessesinhigh-temperaturecoolingwater,ashwatertemperatureishigherthannormalseatemperatureswastewaterAlargenumberofnutrient-richhumansewage,industrialwastewater,agriculturalwastewateremissionseaofredtideorganismswillusenutrientssuchasnitrogen,phosphorus,carbonfranticallybreedingandaccumulationinducedredtideoccurred.Fifth,theheatedwasteHeatedMeasure：SewagemarinedisposalOceandisposalofsewageisprohibitedoreffectivemeasurestolimitemissionsandfreedomofsewageshorerandomrow,concentratedpretreatmentofsewageworkssystem,transportationbypipelinetotheunderwaterdepthoftheocean,emissionsbythediffuser,sothatinassmallaspossiblewithinahighdegreeofdilution,toreducetheimpactontheenvironment.Thissewagemarinedisposalengineering,comparedwiththeconventionalsecondarytreatmentofsewage,saving1/2to1/3ofinvestmentininfrastructureandoperationandmanagementcosts,covering30to40percentreductioninbenefitsareenormous.Measure：SewagemarinedisposalconclusionOvertheyears,theChinesepeople'sawarenessofresourceprotectionisweakandthelegalconceptisthin.Weoftendestructatfirstandprotectwhensituationisterrible,somanylandaquaticorgan