Showing results for: in-situ remediation Articles
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Fall 2009 IET Newsletter
Innovative Environmental Technologies, Inc"s Fall 2009 Newsletter featuring chlorinated and petroleum contaminated site remediation. Visit www.iet-inc.net for more newsletters, case studies, and technical bulletins concerning in-situ remedial technologies. ...
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Bioaugmentation by horizontal injection to remediate petroleum in tight soils
In situ remediation is a contact sport, requiring contact between the microbes and contamination. Clay-rich soils are particularly challenging as the low permeability limits effective distribution of inoculants. While numerous closely-spaced injection points can improve the distribution of inoculants, this approach is usually not possible at active properties. Horizontal drilling was used on the ...
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The no. 1 choice for improving the performance of soil and groundwater remediation
Adsorption of Contamination The number one challenge associated with most site remediation designs and methodologies is that 90% to 95% of all environmental contaminants; including hydrocarbons (LNAPL), chlorinates (DNAPL), and heavy metals; are present in a sorbed (i.e., absorbed or adsorbed) phase onto soil and bedrock surfaces within both saturated and unsaturated zones. As such, the absorbed ...
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Successful In Situ Remediation of Hydrocarbon Contaminated Soils in South Africa
Location: PepsiCo Frito-Lay Simba Isando, Gauteng, South Africa Use of the vehicle workshop area at the Frito-Lay Simba Isando plant was discontinued due to outsourcing of the distribution chain. An area in front of the wash bay bordered by the workshop and boundary walls had been heavily contaminated by hydrocarbon. This contamination was a mix of petroleum (PRO) and diesel (DRO) range organics ...
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In-situ remediation of Polycyclic aromatic hydrocarbon contaminated soils - New Jersey, USA case study
Executive Summary A New Jersey utility company operated a regulator station on the site of a former manufactured gas plant in central New Jersey. The gas transfer station contained a large natural gas feeder main that fed major population centers in the southern part of the state. The regulator station contained an area approximately 3,600 ft2 contaminated to a depth of 1 meter with both PCBs and ...
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In Situ Chemical Oxidation Remediation Pilot Study Of A Karst Bedrock Aquifer Contaminated With Chlorinated Solvents
ABSTRACT A pilot study to evaluate an innovative in situ treatment technology was implemented at Letterkenny Army Depot, Chambersburg, Pennsylvania, for a limestone bedrock aquifer contaminated with chlorinated solvents. This technology destroys VOCs in groundwater, utilizing a network of injection points to deliver a solution of hydrogen peroxide (50%), catalysts, and surfactants. The ...
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Application of an innovative In-Situ thermal remediation process for removal of petroleum hydrocarbons at a former FDOT maintenance yard
Subsurface Petroleum Hydrocarbons: Recovery and Removal Mechanisms Dissolved-Phase Recovery Pump and Treat Vapor-Phase Recovery Soil Vapor Extraction, Air Sparging Biological Removal Natural Attenuation, Source: Biosparging ...
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Surfactant enhanced aquifer remediation (SEAR) using Ivey-sol surfactant technology
This paper will focus on the application of Ivey-sol non-ionic surfactant technology to improve the in-situ remediation of petroleum hydrocarbon contamination is soil and bedrock aquifers. Normally hydrophobic organic chemicals (HOC) exhibit limited solubility in groundwater as the contaminants tend to partition onto the soil and bedrock matrix. This partitioning can account for as much as ...
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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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Tacoma, Washington - Well 12A superfund site - Case Study
Combined Remedies for DNAPL Remediation Project Summary TRS Group, Inc. (TRS) teamed with KEMRON and AMEC, under KEMRON's U.S. Army Corps of Engineers (USAGE) Environmental Remediation Services Multiple Award Task Order Contract (MATOC), to perform electrical resistance heating (ERH) for the remediation of volatile organic compounds (VOCs) in the vadose zone soil and shallow groundwater at ...
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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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Case study: Hunters Point
In Situ Thermal Remediation with Gas Thermal Remediation (GTR©) is being used to remove NAPL contaminants from a former military base. The system is extracting nearly 1,000 liters of liquid waster every week. LNAPLs, such as fuel and oils, and DNAPLs, such as PCBs and chlorinated solvent, are being removed from the subsurface to make way for a residential homes. In Situ+NAPL Extraction ...
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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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Application of electrical resistance heating for remediation petroleum hydrocarbons at Greensboro maintenance yard
Project History Former FDOT Maintenance Yard Operated from 1965 to 1997 Facility dispensed diesel fuel and unleaded gasoline from 3 USTs; 1 AST used to store used oil USTs/AST removed in 1997 SAR/Pre-RAP Monitoring results indicated: Presence of light non-aqueous phase liquid (LNAPL) at depth (approximately 23 feet below land surface) source area assessed as approximately 3,736 square ...
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Spolchemie site remediation and NanoRem field site application
Site Remediation The Spolchemie site was chosen as one of the NanoRem case study sites, to test two types of nanoparticles (NPs) (zerovalent iron - nZVI and iron oxide NPs) for in situ remediation of BTEX (Benzene, Toluene, Ethylbenzene, and Xylenes) contamination. Nanoremediation was seen as an opportunity to enhance the in situ biodegradation of the BTEX contaminants and to reduce the current ...
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Creek Channel & Floodplain Restoration Project - Case Study
The ERC & Burgess & Niple team was selected as the design-build team to complete the design, permitting and construction work along Turtle Creek. The scope of work included the removal of a failing sheet pile wall, clearing and grubbing, excavation/embankment, re-alignment of the stream, installation of instream structures and rip-rap slope protection. During the removal of the sheet ...
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Ivey-sol surfactant enhanced soil washing technology overview and project experience - Case Study
lvey-sols soil washing is an ex-situ surfactant enhanced remediation (SERS) treatment method which removes hazardous substances from contaminated soils, solids, tank bottom sludge, drill cuttings, drilling muds, etc. The soil washing process (Photol) involves the introduction of the contaminated solids into a treatment chamber which contains an Ivey-sol2 formulation and water, at a specified ...
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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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Groundwater Remediation Methods
Groundwater contamination is a significant environmental challenge faced by many regions worldwide. Pollution resulting from hydrocarbons and other contaminants can have disastrous consequences on both the environment and human health. Therefore, the need for effective groundwater remediation methods cannot be overemphasized. In this article, we will discuss some of the groundwater remediation ...
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Emergency remediation response case study
Services Performed Emergency remediation response, oil and hazardous waste consulting and a mold/indoor air quality (IAQ) testing Summary Following the flooding of the Spicket River during the Spring 2006, EFI Global was engaged to evaluate a nursing home in Lawrence, MA. After the initial environmental evaluation, our team observed that the basement and entire first floor of the nursing home ...
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