dnapl source zones

Download DNAPL Source Zones

Post on 15-Jan-2016

21 views

Category:

Documents

0 download

Embed Size (px)

DESCRIPTION

DNAPL Source Zones. Mark L. Brusseau University of Arizona. Superfund Basic Research Program University of Arizona. Funded and administered by the National Institute of Environmental Health Sciences (NIEHS), an institute of the National Institutes of Health (NIH) - PowerPoint PPT Presentation

TRANSCRIPT

  • *DNAPL Source ZonesMark L. BrusseauUniversity of Arizona

  • *Superfund Basic Research ProgramUniversity of ArizonaFunded and administered by the National Institute of Environmental Health Sciences (NIEHS), an institute of the National Institutes of Health (NIH)

    Hazardous wastes investigated include: arsenic, chlorinated hydrocarbons, and mine tailings contamination

  • *Recent StudiesInterstate Technology and Regulatory Council. 2002. DNAPL Source Reduction: Facing the Challenge.

    Environmental Protection Agency. 2003. The DNAPL Remediation Challenge: Is There a Case for Source Depletion?

    National Research Council. 2004. Contaminants in the Subsurface: Source Zone Assessment and Remediation.

    Strategic Environmental Research & Development Program. 2006. Reducing the Uncertainty of DNAPL Source Zone Remediation.

  • *The DNAPL ProblemLong-term Source of Contamination

    Accurate risk assessment and effective remediation of DNAPL sites requires understanding of source-zone architecture, mass-transfer dynamics, and mass-flux response

    Current Understanding is Insufficient

  • *UA DNAPL ResearchThree Major Aspects:

    Fundamentals of Source-zone Architectures and Mass-transfer Dynamics

    Source-zone Characterization Technologies

    Source-zone Remediation Methods

  • *Source-zone Architecture & Mass-transfer Dynamics

  • *Source-zone Mass FluxInput for dissolved-phase groundwater plume

    (Which is usually primary risk driver for site)

    (Figure adapted from EPA)

  • *Field-scale Research: TIAA StudySite CharacterizationSource-Zone TCE Mass FluxTCE Spatial Distribution (areal, vertical) DNAPL presenceAdvective, Diffusive, Dispersive Transport

    Laboratory Experiments--- Mass Transfer Processes

    Mathematical Modeling--- Plume Behavior

    Pilot Source-zone Remediation Projects

  • *TIAA Site Site Remediation under Superfund and DOD-IR

    Multiple source zones and PRPs

    14 years of research at portions of the complex

  • *Contaminant Elution

  • *Intermediate-scale ResearchConducted with Flow CellsWell-defined conditions Develop DNAPL Source Zone Characterize Architecture(Imaging; Tracer Tests) Water Flush(Monitor Q, C) Simulate w/ Model

  • *Contaminant Elution: Data

    Chart1

    0.60595281540.24324576370.12833142650.22854978261.0335555556

    0.62140943450.26735799810.18079123260.2119955280.9990740741

    0.58276788660.25363530090.0995435660.22156052411.0438888889

    0.64942455670.21761963460.14029746490.23086948371.0251851852

    0.63396793760.28252024280.15581863070.24754197981.0622222222

    0.59919054450.20288042420.15356415970.25349975931.0257777778

    0.63493397630.26075310590.09182633830.21872396351.0915185185

    0.55958295790.24634954880.1435924610.1874598681.018962963

    0.52963575830.26504291760.12408261580.19508159940.9990740741

    0.59146223490.16562181650.17342084660.213099670.9651111111

    0.62720566670.22019926140.12130788220.17146560170.9727407407

    0.57310749960.21866628930.15018245320.0573604271.0128888889

    0.5624810740.21449727270.11679894020.20298258541.0097777778

    0.65715286630.22349513850.14905521770.09239724380.9919259259

    0.5943603510.22456195230.15278376590.09431442161.0125925926

    0.53833010650.20623893290.15451797430.06114411880.9374814815

    0.56537919010.18898178820.13856325650.04874735250.949

    0.54605841610.09816138310.14151141090.02975658390.9695555556

    0.48616401690.09798906860.092173180.01024866851.0171851852

    0.50934894560.14516517620.059396640.00160668091.012

    0.52673764220.10634562190.07058228460.00014386650.9446296296

    0.48519797820.070808910.11393749620.00000126941.103962963

    0.4794017460.10481221180.08549647740.00001954580.9584074074

    0.46877532030.08800793890.10041067020.986037037

    0.46780928160.12021246610.08809779011.0091851852

    0.45428473990.08566877560.0825483230.9887407407

    0.45814889470.05299522020.07751911840.9779259259

    0.42337150160.04057236650.0700620220.9951851852

    0.42723565630.02459520640.06095742760.9887407407

    0.39149222450.01316228320.0667670261.0332592593

    0.4156431920.00790948140.12867826820.9785185185

    0.38183183760.00335601940.15859336420.9812222222

    0.3644431410.00074213760.0938206781.0402222222

    0.3325638640.00032446960.15850665380.9848518519

    0.34415632840.1509628471.0470740741

    0.32580159310.06364545071.002962963

    0.30454874180.06876136571.0013333333

    0.31131101270.06087071721.0470740741

    0.28812608390.06936833871.0508148148

    0.27170342610.07751911841.0681111111

    0.26977134870.06182453181.0137777778

    0.24851849730.04621665561.02

    0.26204303910.05532125010.9973333333

    0.24272226510.05020533511.0421111111

    0.23885811040.03615824651.0041481481

    0.21277506550.04743060160.959

    0.2050467560.04274823870.9973333333

    0.18862409810.04786415371.0001481481

    0.19925052380.03008851690.967

    0.16543916940.0485404950.9625185185

    0.17123540150.03615824650.7561481481

    0.12969573760.02627325830.6960740741

    0.13935612450.04531486720.5994074074

    0.16254105330.04110074070.4977037037

    0.1219674280.04153429280.5034444444

    0.10940892490.03971337390.4347777778

    0.11134100230.03341819710.2889703704

    0.10172891730.03678256160.2280711111

    0.09462853280.03029662190.1610666667

    0.08390550330.02719238880.1330385185

    0.08801116780.03588077320.0906592593

    0.08607909040.0325684350.0587688889

    0.07680511890.03084289760.0372266667

    0.08105568910.03388643340.0251044444

    0.07501794730.03281122420.0110177778

    0.0752594570.02993243810.0107318519

    0.07352058730.02658541580.0027738519

    0.06699982610.02830228220.0028326667

    0.06212133070.02339447220.0012028889

    0.06308736940.0334181971

    0.06241114230.0262559162

    0.05622849460.0273484675

    0.05985113970.0239494189

    0.05560056950.0190762931

    0.05323377470.0230302884

    0.05192962240.0248858915

    0.049369619982.2749698812

    0.05019075280.027851388

    0.05120509340.0268628891

    0.04753414640.0180010839

    0.04888660050.0167090986

    0.04912811020.0152870476

    0.04787225990.0200040947

    0.04801716570.0140297465

    0.04637489990.0188161619

    0.04801716570.0178883603

    0.04695452310.0150442584

    0.04502244570.0268455471

    0.04550546510.0159894021

    0.04391150120.0136655627

    0.04019225230.019041609

    0.03724583420.0184172939

    0.03656960710.0142205094

    0.03579677620.0111336184

    0.03724583420.0118099597

    0.03270545230.0103705666

    0.02917941110.0112550129

    0.02811676850.0076305173

    0.12351308990.0063125188

    0.13389800590.005523454

    0.13389800590.006139098

    0.12868139690.0067807551

    0.11935912350.0060784007

    0.12351308990.0039658124

    0.1301304550.0037143921

    0.1286813969121.7279268899

    0.16017425850.0032607651

    0.13389800590.0033008289

    0.236926033123.90555943

    0.03598998390.0027702789

    0.04275225480.0027075682

    0.0297107324126.1129745552

    0.03260884850.0020310951

    0.03502394520.0020368608

    0.02681261630.0013177628

    0.0277786550.0013506037

    0.0205333648129.0147326919

    0.01705562540.0012156825

    0.01628279450.0011247596

    0.0159929829130.3946591313

    0.0164277003134.5361903661

    0.0004479465

    0.0004367925

    140.6841407754

    0.0000912135

    146.4000820667

    0.0000214135

    0.0000103096

    152.2525268728

    Lower-K-1

    Lower-K-2

    Lower-K-3

    Pool

    Control

    Pore Volumes

    Relative Concentration

    Sheet1

    Justin DataErica DataGeoff Data

    experiment 2in paperexperiment 5in paperResid Low-KPoolL=15cm colm, Sn=0.14

    column lower-K NAPL zoneflow cell two lower-K NAPL zonesPVCC/C0PVCC/C0

    MODcol with 40/50 zoneflow cell 20/30 with 2 zones0.0045.70.05682460670.41315.200.391556087PVC/Co

    MC7FC70.39247.00.30685586241.16183.980.2285497826

    16.9UV-Vis & HS0.74161.00.20004759931.97170.660.2119955280.321.0335555556

    Cor PVC/Conotestotal pvc/c01.1382.70.10269649062.75178.360.22156052410.8320.9990740741

    00.10104545450.64556040191.5287.60.10885806627.70185.850.23086948371.7921.0438888889

    0.44173329890.13295454550.66005098241.9186.30.107174368516.19199.270.24754197983.041.0251851852

    0.54184282830.76652014210.32795454550.81171905793.08195.80.243245763726.82204.070.25349975934.0641.0622222222

    0.55435651950.76738724630.48545454550.82814171574.18215.20.267357998135.02176.070.21872396354.961.0257777778

    0.56687021071.01017643160.67545454551.03584003575.46204.20.253635300945.17150.910.1874598685.8881.0915185185

    0.59189759311.01451195280.84645454551.09959858976.51175.20.217619634654.93157.040.19508159946.881.018962963

    0.86719879921.03358824591.1470.75858692959.04227.40.282520242864.69171.550.213099677.8080.9990740741

    1.09870208611.03358824591.34909090910.686134027212.06163.30.202880424283.62138.030.17146560179.7280.9651111111

    1.68684557180.95121334381.59113636360.646526440614.99209.90.2607531059101.6846.180.05736042711.6480.9727407407

    1.70561610860.95121334381.82322727270.690964220718.38198.30.2463495488120.71163.400.202982585413.5681.0128888889

    1.74315718220.93040284222.04186363640.605952815421.43213.40.2650429176139.5374.380.092397243815.4881.0097777778

    2.41263966060.93040284222.24872727270.621409434524.16133.30.1656218165157.4075.920.094314421617.5040.9919259259

    2.64414294751.02405009942.40681818180.582767886627.70177.30.2201992614176.2149.220.061144118819.6161.0125925926

    4.32097756641.02838562052.76504545450.649424556730.80176.00.2186662893194

Recommended

View more >