基于模糊理论的重金属浸出行为分析与潜在风险评价-(5699)

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1、万方数据AbstractWiththehigh-speeddevelopmentofeconomy,therapidimprovementofcivillife，thetotalyieldofmunicipalsolidwastage(MSW)peryearisrapidlyincreased．Incinerationisprovedtohavetheadvantagesoflessoccupiedarea，energyrecycling，andSOon．Soithasbecomeakindofeffectivem

2、ethodusedtomaketherefuseusefulandharmless，reduce．While，mostoftheheavymetalsresiduesandenrichmentsinthemunicipalsolidwasteincineration(MSWI)ash．Heavymetalsmigrateandtransformunderthefunctionofecologicalenvironmentandbiologicalaccumulation，andeventuallyproducegr

3、eatharmtohumanbeings．Ithasimportantsignificancetostudyontheleachingbehaviorsofheavymetalsandevaluatethepotentialecologicalrisktotheenvironment．Thedissolutionofheavymetalsisveryslow,andmanyfactorswillinfluencethemigrationandtransformationofheavymetalinthelandfi

4、ll．What’Smore，themeasuredsampledataisverylimited．Topredictorsolvetheparametervaluesbyusingsmallsampledatadirectlywillincreasethecomputationalerroranddecreaseaccurac5andtheresultsareoffuzzinessanduncertainty．Andfuzzytheoryhasanobviousadvantageinsolvingtheseprob

5、lems．Inthispaper,thefuzzytheoryisintroducedindetail，andthenanalyzestheproblemofsmallsample．Theexpansionofsmallsampledataisusedfuzzyc-meansclustering(FCM)algorithm，andthesystemoflinearequmions．NewsamplesarerepresentedasfuzzyNumbers，andthemembershipdegreeofeache

6、lementiscalculatedandusedastheweightvalueoffittingcurve．BycomparingfittingresultsfromthealgorithmandmeasureddataandVisualMINTEQsimulationresults，themethodinthispaperisconsideredtobemorereliableandhaveabetterinterpretationfortheleachingbehaviorsofheavymetals．It

7、isdifficulttodegradetheseheavymetals，andtheleachingbehaviorswillcontaminategroundwater,air,water,andthesurroundingsoil．Further,heavymetalswillhavealastingpotentialriskstohumans，animalsandplants，etc．Toevaluatethepollutionrisklevelsofheavymetals，willbehelpfulfor

8、disposalandreuseofMSWIash．Inthepaper,fuzzyexpertsystemisappliedtothepotentialecologicalriskindex．Usingthecontaminationfactorofheavymetalsasinput，andthenthroughreasoningtheuncertain