contaminated site 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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In Situ Treatment Technologies for Contaminated Soil
Compared to excavation and ex situ treatment, the use of these technologies offers several benefits, such as addressing deep contamination and generally costing less. The summary for each in situ technology includes a basic description of the technology, its implementation, applicability based on contaminants and site characteristics, general limitations, costs, and status of the ...
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Determination of adsorption efficiency based on cation exchange capacity related to red earth, bone meal and pulverised fly ash as ameliorants to lead contaminated soils
Efficient treatment strategies to reduce the toxicity of metal contaminated soil using cost effective techniques such as naturally available ameliorants and industrial waste have emerged. Three easily available amendments were determined: Bone meal, red earth/mud and pulverised fly ash (PFA). The application of ameliorants offered a possible alternative in situ remediation of contaminated sites ...
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Real Estate Development: Southern California Campus at Former Aerospace Manufacturing Facility - Case Study
In 2015, Intrinsyx was retained by a Fortune 100 client with a campus being developed (late 2018 opening) at a highly contaminated former aerospace manufacturing facility. We worked with the client’s Environmental Health & Safety team, their architectural firm, their landscaping firm, as well as state and federal regulators. We developed a tailored planting scheme for their campus using ...
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Soil invertebrate community change over fuel‐contaminated sites on a subantarctic island: An ecological field‐based line of evidence for site risk assessment
A number of fuel spills, of both recent and historic origins, have occurred on World Heritage listed subantarctic Macquarie Island. Sites contaminated by mainly diesel fuels are undergoing remediation by the Australian Antarctic Division. The risks posed by these sites are being managed using a “weight of evidence” approach, for which this study provides a preliminary line of evidence for the ...
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Cadmium in soil-plant systems: an overview
High concentrations of cadmium in soils represent a potential threat to human health because it is incorporated in the food chain mainly by plant uptake. The behaviour of cadmium in soils depends on several factors related to both soil and plant characteristics. This paper provides an overview of such factors as well as of the most environmentally friendly in situ soil remediation techniques in ...
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The power of precise remediation
Design matters in in-situ remediation. Just ask Resource Geoscience, Inc. (RGI), a Remediation Products, Inc. BOS 200 approved installer and certified Trap and Treat Consultant. They recently demonstrated that when paired with proper injection design and precise application, BOS 200 can get the job done where others fail. The site: Contaminated clay site in Colorado The contamination: BTEX ...
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What Are the Benefits of the Thermal Desorption Process?
The thermal desorption process, a sophisticated remediation technique employed in environmental engineering, has garnered attention for its effectiveness in treating contaminated soil, sediments, and groundwater. By harnessing the power of heat to remove organic contaminants from solid matrices, thermal desorption offers a range of benefits that make it a preferred choice for remediation projects ...
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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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Brownfield Site Phytoremediation for Oil Company - Case Study
The site was a petroleum tank farm from the early half of the 20th century. Contaminants on-site include petroleum hydrocarbons, benzene and ethylbenzene, and PAHs naphthalene and 2-methylnapthalene. Most contaminants are in subsurface and groundwater, with the exception of PAHs that extend from the surface to ...
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A Citizen`s Guide to Natural Attenuation
What is natural attenuation?Natural attenuation makes use of natural processes to contain the spread of contamination from chemical spills and reduce the concentration and amount of pollutants at contaminated sites. Natural attenuation—also referred to as intrinsic remediation, bioattenuation, or intrinsic bioremediation—is an in situ treatment method. This means that environmental contaminants ...
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Combining thermal treatment with MNA at a brownfield DNAPL site
Abstract A heavily contaminated Brownfields site in New York was remediated and redeveloped using a combination of In-Situ Thermal Desorption and Monitored Natural Attenuation. Four source areas were addressed by the thermal technology, and groundwater beneath the site is undergoing natural attenuation. Approximately 86,000 lbs of volatile organics were extracted and treated on-site. The ...
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Using Cl-Out to Finish Remediation Following Chemical Oxidation
CL-Out was used to complete the remediation of ground water contaminated by chlorinated solvents from a former dry cleaning site in Rockville, Maryland. The ground water contamination had migrated from leaking sewer lines to underlying bedrock fractures. Fenton’s Reagent was first applied to the site, but the PCE concentrations increased due to desorption. Subsequently, sodium ...
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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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Excavation, Retrieval, and Off-Site Disposal
Introduction: Contaminated material is removed and transported to permitted off-site treatment and/or disposal facilities. Some pretreatment of the contaminated media usually is required in order to meet land disposal restrictions. Confined disposal facilities (CDFs) are engineered structure enclosed by dikes and designed to retain dredged materials. A CDF may have a large cell for material ...
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Introduction to Ozone Injection Technology
Untitled Document Ozone is a highly reactive chemical that has proven to be effective in destroying a wide variety of organic chemicals, including MtBE and chlorinated VOCs. Ozone destroys organic chemicals through the process of chemical oxidation, which breaks the targeted organic chemical down into carbon dioxide and water. Ozone is commonly used in aboveground ...
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In-Pile thermal desorption for treatment of Dioxin-Contaminated soil in Japan
Abstract A demonstration of thermal treatment of dioxin-contaminated soil was completed in Japan, under the sponsorship of the Japan Ministry of the Environment. TerraTherm’s proprietary In-Pile Thermal Desorption process was demonstrated to successfully treat the soil to the required standard of 1,000 picograms of 2,3,7,8-tetrachlorodibenzodioxin (TCDD) toxic equivalents (TEQ) per gram ...
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Ex Situ Biological Treatment for Soil, Sediment, and Sludge
The main advantage of ex situ treatment is that it generally requires shorter time periods than in situ treatment, and there is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil. However, ex situ treatment requires excavation of soils, leading to increased costs and engineering for equipment, possible permitting, and ...
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Environmental incident response, North-East England
Project The Remediation Strategies Response Team were called-out to a manufacturing facility to assist with a potential pollution incident arising from contamination of the site’s surface water drainage system. During weekend work, a concrete cutting contractor had disposed of a large volume of concrete cutting slurry into the site’s surface water drainage system. This material had ...
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Risks from Renegade Nanoparticles during field deployments within NanoRem
The aim of NanoRem is to support and develop the appropriate use of nanotechnology for contaminated soil and groundwater remediation. NanoRem focuses on facilitating practical, economic and exploitable nanotechnology for in-situ remediation. This can only be achieved in parallel with a comprehensive understanding of the environmental risk-benefit balance for the use of nanoparticles (NPs). One ...
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