?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F522%2F&rft.title=Mathematical+models+for+an+undisturbed+soil-column&rft.creator=Bohun%2C+C.+S.&rft.subject=Environment&rft.description=Some+of+the+major+industries+of+the+Zebo+region+(China)+include+the+petrochemical%2C+pharmaceutical%2C+china+and+ceramics+sectors.+Zibo+is+also+abundant+in+natural+resources.+In+support+of+the+ceramics+industry%2C+they+have+large+reserves+of+clay%2C+limestone+and+bauxite.+Consequently%2C+there+are+a+number+of+mines+in+the+region+and+the+outflow+of+acidic+water+from+these+metal+and+coal+mines%2C+known+as+acid+mine+drainage+(AMD)%2C+is+considerable.+The+AMD+is+rich+in+sulphate+ions+and+contains+other+pollutants+that+are+subsequently+transferred+to+the+soils+and+surrounding+surface+rivers+through+both+irrigation+and+infiltration+of+the+ground+water.%0D%0A%0D%0ATo+understand+the+behaviour+of+the+soil+in+the+presence+of+infiltrating+pollutants+and+atmospheric+precipitation%2C+soil-column+experiments+were+performed.+A+chosen+soil+sample+was+undisturbed+in+the+sense+that+the+structure+of+the+soil+layers+and+any+pollutants+within+the+column+were+preserved+when+the+soil+was+transferred+to+the+experimental+apparatus.+To+simulate+the+processes+that+occur+within+the+environment+(infiltration+and+precipitation)%2C+polluted+water+(liquor)+from+a+nearby+source+was+introduced+at+the+top+of+the+column+and+once+this+material+has+infiltrated+the+column%2C+clean+water+was+allowed+to+flush+through+the+apparatus.+The+initial+concentration+of+various+ions+in+the+liquor+were+measured+and+throughout+the+experiment%2C+the+fluid+that+reaches+the+bottom+of+the+column+was+collected+and+analysed.%0D%0A%0D%0AThe+goal+for+the+workshop+is+to+derive+a+mathematical+model+that+predicts+the+observed+experimental+time+dependence+of+the+ionic+concentrations+emerging+from+the+bottom+of+the+the+apparatus.+Developing+the+model+will+require+an+understanding+of+the+physical+and+chemical+mechanisms+of+the+solute+transport+though+the+soil.+This+is+an+important+first+step+in+the+eventual+development+of+remediation+schemes+for+the+contaminated+soil.&rft.date=2006&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F522%2F1%2FMathematical-models-for-an-undisturbed-soil-column.pdf&rft.identifier=++Bohun%2C+C.+S.++(2006)+Mathematical+models+for+an+undisturbed+soil-column.++%5BStudy+Group+Report%5D+++++