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ryotrt S 5 P <br /> - � 2 <br /> Using Vegetation to Enhance <br /> to situ Bioremediation <br /> L. E. Ericksan, M. K. Banks, L. C. Davis, A. P. Schwab, <br /> N. Murafidharan, and K. Reilley <br /> Center for Hazardous Substance Research, Ward Hall, Kansas State University, <br /> Manhattan, Kansas 66506 <br /> J. C. Tracy <br /> Department of Civil Engineering, South Dakota State University, <br /> Brookings, SD 57007 <br /> Yegelallon can enhance iia situ biorernedlation processes in many <br /> applications. Microbial transformations occur in the soil external to the plant <br /> roots. Organic contaminants also enter vegetation and are transformed within <br /> plan's. Research progress is reviewed with emphasis on recent experimental <br /> results and mathematical modeLT of contaminant fate in syslems where <br /> vegetation Is present. Evaporranspiration provides a solar driven pump-and-treat <br /> system which helps bring contaminants to the rhizosphere and helps contaln <br /> them on the site. <br /> LNITRODUCTiON Bc xT=ai affects of vege zd=bay been repotted in soils <br /> coatatzutratrd wEth monis ss writ as otsamc cosapotmda.The <br /> Vege awn is found in die pres+mm of hazardous cootam- apput:alk m of vesctasdcn to the staltil=doa,coat-oL and rc• <br /> �nwno ut SoLk at OcattOat. A number of ttudses h ve tnCdiAtt4v of pOtls eont.aminared VVSth t>SC1li hs betsarcviewed <br /> been reported *a Zrthe tTe�S CI'Yesetauorl 04 the trausfOr- recently by Psersyresid of 4124I. The pcesctti t�rsGw will be <br /> matiou or stabtl=don of con pounds (1-391. Theca so-b2ca Ginned to orgzsata catupoundt that may be uwufornud and <br /> show thatthaeare many rcas=totnvzrattaatstbcantcracaons inorganic comrpound% that =Lv be bencfcol to pinata and <br /> Ihat oris' imoug harardcrus compounds. m&:rwrffanL=, mieroocgmisms.The emphasis rnit be on rct=ticrelopmenu <br /> plants, soil, ase, "d water. The giant root Zone (the rhino- that are not tnctuded In the reviews of Shimp of at. V01 and <br /> sphere} has ugniflcsatly largsr number% of arucroorgantuns Anderson et al WT. <br /> than suis which do=havc plant:Vrovnng in them t167,this Vereuzioa has beea uud bmefic£ Aly in die Im suis btorm- <br /> appears to c=J=c:that:bsodegradacKa of organic con2pounds, mediation of oo==nated wG. as a biofilter to adsorb and <br /> Two professianni sodetles have tadudrd rc!cY=t xchmcal btodcgnde c===aants rn air Md watt',&od in buf err t"ar-4 <br /> sessions at thew rtccst aitaanai mceangs_ The Air and W2ste for coatroa and trentmcat of lvdzate and surface evatcm 110. <br /> Management Asacmation's sympoliuni (11 was cntttiod 12, 18, 22, 27, 301 Spadfie potential poftroa prrveaaoc <br /> "8encridd Effects of Yegetatioa En Waste Trcatateat Soil appUcanoss mdude the vac of grasses sad trees at the rdg= <br /> Rcmcdrau*n and StabM=Loa"whLe the Arn-rt an Cheas:eal of fcetds along tlse banks of s2"=ts to'opium and=wforro <br /> 50aety's three — ow (131 were tatiticd "Mr=bkd Dcgra- pesticides and fardlizcrs, grass wataways bdow antm*i recd- <br /> dntuon of Organic Compounds in the "Lzasphc= Impitca, lots to man.-&c runoff ansodattsd with rautfall trenu, and <br /> Goats LN*,v7j'emIb8r, <br /> duatlon-" vegctsdon at tau edge of landfM to uuli= asd transform <br /> 226 1994 Envtrcr►trtetttad F`rogress{VaL 1� Na �I <br />