Removal Efficiency Simulation and Characterization Analysis of Particles Behavior in a Stormwater Wetland During Dry Days： A Case Study in Janghwa-do, Korea-中国期刊网

摘要 Particlesbehaviourwasmonitoredandanalyzedinastormwaterwetlandoveraperiodof4months(June-September,2009).Theresultsindicatedthattheparticlesbehaviourcanbeaffectedbymanyprocesses,suchassedimentation,resuspension,adsorptionandreleaseinstormwaterwetlandsduringdrydays.Duetotheeffectsofthesefactors,theparticlesremovalefficiencycalculatedbasedonthesettlingtheorywassignificantlyhigherthanthevalueobtainedusingthemeasuredparticlesnumberconcentration.Andthemeasuredefficiencyshowedaturningpointintherangeof2-4μm,whichwaswithinthecolloidalparticlesrange.Analysisofparticlesizedistributionshowedthatparticleswerefinerintheoutflowthaninflowduetosedimentationofthecoarseparticlesandresuspensionofthefineparticlesinthewetland.Particlesindifferentsizerangesplaydifferentrolesintheircontributiontoturbidityandtotalsuspendedsolidsconcentration.Thefinerparticles(lessthan10μm)showedacloserrelationshipwiththeturbiditywhilecoarserparticles(>4μm)weremorerelatedtototalsuspendedsolidconcentration.

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Removal Efficiency Simulation and Characterization Analysis of Particles Behavior in a Stormwater Wetland During Dry Days： A Case Study in Janghwa-do, Korea

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Removal Efficiency Simulation and Characterization Analysis of Particles Behavior in a Stormwater Wetland During Dry Days： A Case Study in Janghwa-do, Korea

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