contaminated soil Articles
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Compressibility of Contaminated Fine-Grained Soils
An experimental study was performed to investigate factors that control the compression index of contaminated soils and to evaluate the applicability of the correlations proposed by Skempton (1944) and Arulanandan et al. (1983) for contaminated soils. The literature search indicated that the compressibility of a soil depends on mechanical as well as physicochemical factors. The addition of ...
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Degradation of phthalate-contaminated soils
Petrox 3 is a specialty bioremediation product comprised of patented strains of live vegetative aerobic microorganisms providing fast, effective degradation of large molecule organic compounds such as phthalates. The following soil treatment demonstrates the effectiveness of PETROX 3 to treat excavated and land-farmed soils. Petrox 3 was added at a rate of approximately 1 drum per 200 tons of ...
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Common Treatment Train for Radionuclides
A treatment train is the combination of different treatment technologies. A system diagram of a common treatment train for radionuclides is illustrated below. Radionuclide contaminated soil is first excavated from the contamination soil and transported to a vitrification site. During vitrification, the contaminated soil is molten at extremely high temperatures. Radionuclides are incorporated into ...
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Government bill regulating contaminated soils in Catalonia
The region of Catalonia in Spain has developed a Government bill regulating Contaminated Soils in order to comply with both National Law 10/1998 of 21st April on Waste, and Royal Decree 9/2005 of 14th January, by which it is established the list of soil polluting activities and the standard criteria to declare a soil as contaminated. This decree is based upon the necessity that all Autonomous ...
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Estimation of OCDD degradation rate in soil
The current concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were determined in soils contaminated with Chinese technical product sodium pentachlorophenate (Na-PCP). The estimated half-life of octachlorodioxin (OCDD) was about 14 years in contaminated soils based on the local historical record and mass balance calculation during the past 43 years (1960-2003). The ...
By IOS Press
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Cleanup of Contaminated Soils at Municipal Park
A municipal garden in Mandarituba, soil was contaminated with transformer oil and COPEL, the utility company was responsible for the cleanup and restoration of the contaminated soils. The company decided to use AgroRemed BR CTBA specially customized for applications in Brazil. The site was excavated and treated as biopile with AgroRemed BR CTBA. Both TPH values and VOC’s were acceptable and ...
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Detoxification of chromium slag and contaminated soil
Chromium slag and contaminated soil are significant risks to human health. Their detoxification is a difficult problem. In this study, we tried to detoxify the chromium slag and contaminated soil by a solid reduction method. The final product is ceramist. The mechanism and process of detoxification of chromium slag and contaminated soil were studied. The residues of Cr (VI) are lower than 0.004 ...
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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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Remove contaminated soil - Duns
Remove Contaminated Soil & Treat Ground Waters Client: Lothian Borders & Angus Co-op Consultant: Wren & Bell Challenge: Remove contaminated soils and tanks from a former petrol station. Applied technology: Excavate, haulage and disposal Remediation criteria: To achieve target level set by the consultants. Validation: By Wren & Bell Soilutions Ltd were contracted to oversee ...
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Contaminated Soil Fixation
Contaminated soil is one that has heavy metals present within the project site. The EPA requires a Toxicity Characteristic Leaching Procedure (TCLP) test to determine if metal contaminated soil needs to be managed as hazardous or non-hazardous waste. Soils exhibiting hazardous characteristics need to be disposed of at a facility permitted for that material at a high cost. The alternative is to ...
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Proper contaminated soil mixing method
The keys to a successful contaminated soil mixing method is (1) using the right reagent, (2) using the right dosage and (3) achieving good mixing of the reagent and the waste. If there has been extensive testing of the remedial site that shows both the lateral limits and depth of the contamination, then it is recommended that a grid be established over the area before mixing begins. Typically, ...
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Germination and growth of six plant species on contaminated soil with spent oil
Abstract: Effects of contaminated soil with spent oil on germination, above ground height and biomass of six herbaceous plant species were investigated by conducting a general phytotoxicity test and growth inhibition assessment. Six local plant species were used in order to investigate plant’s ability to germinate and survive in a gradient of contaminated soil with spent oil. The species ...
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Effect of amendment on phytoextraction of arsenic by Vetiveria Zizanioides from soil
Abstract: The present study was undertaken to evaluate the growth response of Vetiveria zizanioides amended with organic amendments to arsenic (As) in contaminated soils and its ability to sequester As. The test results indicate that the plants exhibited high tolerance to As in the soils and their normal growth continued even though As concentration reached 500 mg/kg. However, when As ...
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New Legal Framework Approval
WHAT ARE THE MOST IMPORTANT ASPECTS REGULATED UNDER RD 9/2005? • A more precise definition of CONTAMINATED SOIL based on the risks for the human health and the environment. • It is approved the list of POTENTIALLY POLLUTING ACTIVITIES (APC), susceptible of causing contamination to the soil. In this sense, the Royal Decree lists more than 100 activities which belong to all industrial ...
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Remediation Of MTBE Contaminated Soil And Groundwater
Methyl tertiary-butyl ether (MTBE) is a fuel additive made, in part, from natural gas. Since 1979, it has been used in the United States as an octane enhancing replacement for lead, primarily in midand high-grade gasoline at concentrations as high as 8 percent (by volume). Since the mid-1980s, it has been widely used throughout the country for this purpose. It is also used as a fuel oxygenate at ...
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Project Thermal Desorption Contaminated Soil - Afvalstoffen Terminal Moerdijk, ATM - Netherlands - Case Study
Afvalstoffen Terminal Moerdijk, ATM Type of contract: EPC – Engineering & Construction Commissioning date: 2001 Industry Hazardous & toxic waste treatment Application Contaminated soil Location ATM, Moerdijk, The Netherlands Plant throughput 1,00,000 ton / ...
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Contaminated soil remediation - Inverurie
Remove Contaminated Soil from Residential Gardens & Re-Landscape Client: MTM Construction Consultant: WA Fairhurst and Partners Challenge: Advise on the removal of contaminated material from a residential area built on a former town gas site. Reinstate existing landscaping. Applied technology: Excavation and removal – backfill with clean material and gas membrane Remediation ...
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Common Treatment Train for Nonhalogenated SVOCs
A treatment train is the combination of different treatment technologies. A system diagram of a common treatment train for nonhalogenated SVOCs is illustrated below. A thermally enhanced soil vapor extraction system is used to pull SVOC vapor from the contaminated soil. Electrodes are installed in the contamination zone to enhance the desorption of SVOCs from the contaminated soil. The ...
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Extraction of lead and cadmium from soils by Cysteine and Glutathione
Received for publication December 17, 2008. Metal-thiol complexes can enhance metal uptake by plant roots and microorganisms, therefore it is important to determine whether thiols effectively solubilize these metals from the soil matrix. Extractions were conducted by combining 1 g contaminated soil and 10 mL of 10 mmol L–1 thiol solution and shaking for 1 h. Both cysteine and glutathione ...
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Metal Contaminated Soils Fixation
Treatment of Metal Contaminated Soils The EPA requires a Toxicity Characteristic Leaching Procedure (TCLP) test to determine if metal contaminated soils needs to be managed as hazardous or non-hazardous waste. Soils exhibiting hazardous characteristics need to be disposed of at a facility permitted for that material at a high cost. Soils treated in the field prior to off-site disposal can be ...
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