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Field Test Of Electrokinetically-Delivered Thermally Activated Persulfate For Remediation Of Chlorinated Solvents In Clay, Nicholas Andrew Head
Field Test Of Electrokinetically-Delivered Thermally Activated Persulfate For Remediation Of Chlorinated Solvents In Clay, Nicholas Andrew Head
Electronic Thesis and Dissertation Repository
Due to extensive industrial applications, chlorinated solvents are among the most prevalent groundwater contaminants found at hazardous sites. Given their recalcitrant nature and adverse health effects upon exposure, effective remediation technologies are needed to treat sites impacted by chlorinated solvents. In-situ chemical oxidation (ISCO) has shown success; however, its performance is often hindered in low-permeability media due to the transport of oxidants in such soils being limited. This field-scale study investigated the novel approach of applying electrokinetics (EK) to enhance the delivery of persulfate and electrical resistance heating (ERH) to activate the delivered persulfate for low-permeability soil remediation. Results demonstrated …
Electrokinetically-Enhanced Emplacement Of Lactate In A Chlorinated Solvent Contaminated Clay Site To Promote Bioremediation, Ainsley M. Inglis
Electrokinetically-Enhanced Emplacement Of Lactate In A Chlorinated Solvent Contaminated Clay Site To Promote Bioremediation, Ainsley M. Inglis
Electronic Thesis and Dissertation Repository
Bioremediation through the injection of electron donors and bacterial cultures is effective at treating chlorinated solvent contamination but faces limitations in low permeability zones where the injected amendments cannot be delivered successfully. Using electrokinetics in combination with bioremediation to enhance the delivery of amendments was tested at a chlorinated solvent contaminated field site, where lactate was injected into clay under a direct current. Advection at locations with higher hydraulic conductivities contributed to lactate transport and dilution of aqueous chlorinated solvents. There was evidence of successful delivery of lactate by electromigration (EM) in all monitoring locations with EM lactate transport rates …