Showing results for: in-situ remediation Articles
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EPA Region 9 Case Study (In Situ Gas Thermal Remediation (GTR™))
In Situ Thermal Remediation was used to successfully treat benzene, TPH-d, TPH-mo, BaP, and Naphthalene from a former gas plant in EPA Region 9. Gas Thermal Remediation (GTRTM), using Thermal Conductive Heating (TCH), raised the temperature of the soils in the treatment zone of the former MGP site to an average temperature of approximately 325 degrees Celsius. The COC(s) identified at the Site ...
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The Emergency-Ready Green Tech for Remediating Oil Spills
When oil spills happen, an immediate response is necessary to mitigate the environmental impact, particularly the risk of contaminants seeping into the soil and groundwater. Iron Creek Group’s patented soil remediation technology is the most advanced and efficient way to restore terrestrial ecosystems in the industry.Our Enhanced Thermal Conduction (ETC) soil remediation technology is streamlined ...
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Remediation of silty-clay hydrocarbon contaminated site using Ivey-sol selective phase transfer technology
Earlier this year, Ivey International Inc. secured its first remediation project in Alberta using its Ivey-sol Selective Phase Transfer Technology (SPTT). This patented technology is being used to treat extensive soil and groundwater contamination at an active service station in Red Deer, Alberta. With a residential area nearby, the environmental sensitivity is relatively high. Unfortunately, ...
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In Situ Thermal Remediation of DNAPL and LNAPL Using Resistance Heating
Electrical resistance heating (ERH) is an in situ thermal treatment for soil and groundwater remediation that can reduce the time to clean up volatile organic compounds (VOCs) from years to months. The technology is now mature enough to provide site owners with both performance and financial certainty in their site-closure process. The ability of the technology to remediate soil and groundwater ...
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Electrokinetic Separation
Introduction The principle of electrokinetic remediation relies upon application of a low-intensity direct current through the soil between ceramic electrodes that are divided into a cathode array and an anode array. This mobilizes charged species, causing ions and water to move toward the electrodes. Metal ions, ammonium ions, and positively charged organic compounds move toward the cathode. ...
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Improving the Predictability of Petroleum Brownfield Restoration
It’s no secret that the United States has an aging infrastructure problem. The public’s attention is focused on the repair of roadways and bridges, but there is also an ongoing initiative to address the existing infrastructure of legacy underground storage tanks, abandoned gas stations and truck stops, that are designated petroleum brownfields. As of July 2021, approximately 21 ...
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A Citizen`s Guide to Bioremediation
What is bioremediation? Bioremediation is a treatment process that uses naturally occurring microorganisms (yeast, fungi, or bacteria) to break down, or degrade, hazardous substances into less toxic or nontoxic substances. Microorganisms, just like humans, eat and digest organic substances for nutrients and energy. In chemical terms, 'organic' compounds are those that contain carbon and hydrogen ...
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Case study: EPA region 9
ISTR Overview Neighborhood: Industrial Heating Tubes: 14 Target Temp: 325 ˚C Heating Period: 130 Days Target: 0.9 mg/kg for Benzene Contaminant: TPH-d TPH-mo Benzene Naphthalene BaP Geology: Silty Sand Clay Well to Poorly Graded Sand In Situ Thermal Remediation was used to successfully treat benzene, TPH-d, TPH-mo, BaP, and Naphthalene from a former gas plant in EPA Region 9. Gas Thermal ...
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Ivey-Sol Technology has potential to increase oil recovery of oil-sands waste by 15-25 percent
Alberta’s oil sands are comprised of one of the world's largest sources of bitumen, containing an estimated 1.6 trillion barrels. About two tonnes of oil sands must be dug up and processed to produce one barrel of oil. Oil sands recovery processes include extraction and separation systems to remove bitumen from sand and water. Separating the oil from the sand is difficult and costly, and getting ...
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Case study: Cuyama
ESTR Overview Consultant: EDD Neighborhood: Suburb Heating Tubes: 36 Target Temp: 200 ˚C Heating Period: 45 Days Target: Destruction Rate Efficiency: > 90% Contaminant: Petroleum Hydrocarbons Geology: High TOC, Silts, and Sands Ex Situ Thermal Desorption was used to successfully treat TPH-d and TPH-g from a former AST spill site in Central California. Affected soils were ...
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Cuyama Case Study (Ex Situ Gas Thermal Remediation(GTR™))
Ex Situ Thermal Desorption was used to successfully treat TPH-d and TPH-g from a former AST spill site in the agricultural zone in Central California. Affected soils were excavated and then placed “in a pile”, and Gas Thermal Remediation (GTR©) horizontal wells were placed into the pile during its three day construction. The piled soils represented mixed sands and high TOC soils, ...
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Remediating Soil While Preserving Soil Structure
The importance of soil cannot be overstated. It’s the basis of agriculture, and as a result, is a critical component of sustaining human life. According to the EPA: “Productive soils, a favorable climate, and clean and abundant water resources are all essential for growing crops, raising livestock, and for ecosystems to continue to provide the critical provisioning services that ...
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