contaminated soil Articles
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CL#8 - In Situ BioLogix Application - Case Study
Site Information Delta Remediation was contracted to remove trichloroethylene (TCE) from deeper ground water. The overlying contaminated soil was excavated, but perched ground water and a deeper aquifer had TCE concentrations greater than 10,000 μg/L. Prior to treatment, a small area of soil less than 500 square feet had TCE concentrations greater than 20,000 μg/L. The underlying impacted ...
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Lead contamination in soil and groundwater in and around a lead processing industry: a case study
Environmental pollution is of major concern across the world, which is affected by a variety of contaminants. Lead is one of the major heavy metals used in industrial activity. Unscientific handling and disposal of lead bearing residues or lead waste has led to contamination of the surrounding soil and water environment. A detailed investigation of soil and groundwater was carried out in and ...
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Bioremediation of petroleum contaminated Soils in Brazil Using AgroRemed
At Atuba at the corporate site of COPEL, a state owned utility company, soil was heavily contaminated with transformer oil due to a long history of contamination since 1964 probably due to unsafe practices of storage and cleanup. The level of contamination measures as TPH in soil was as high as 766,695 ppm and much of the contamination was at a depth of 1 meter. The site is located on a hill and ...
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HD#3 - In-Situ BioLogix Application - Case Study
Summary BioLogix bioremediation was used to remediate petroleum contaminated soil and ground water to facilitate property redevelopment and meet regulatory obligations at sites throughout Canada and the US. Every site presents unique challenges, but the use of BioLogix microbes removes much of the uncertainty regarding remedial performance. Delta Remediation provides site evaluations and ...
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Bunker C Fuel Oil Spill - Case study
HE SITUATION: No. 6 fuel oil is a dense, viscous oil produced by blending heavy residual oils with a lighter oil (often No. 2 fuel oil) to meet specifications for viscosity and pour point. When spilled on water, No. 6 fuel usually spreads into thick, dark colored slicks, which can contain large amounts of oil. The most viscous no. 6 oils will often breakup into discrete patches and tarballs when ...
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BioLogix Remediation Product in California - Case Studies
BioLogix bioremediation was used to remediate petroleum contaminated soil and ground water to facilitate property redevelopment and meet regulatory obligations at sites throughout the US. While every site is unique, the following case studies provide a basis for confidently selecting BioLogix bioremediation for your ...
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Mobilization assessment and possibility of increased availability of PAHs in contaminated soil using column tests
Surfactants are well known to increase solubility/mobility of hydrocarbons and can be used to remediate contaminated water and soil. We wanted to explore if Ivey sol R 106 used at less than the critical micelle concentration (CMC) could effectively mobilize PAH (polycyclic aromatic hydrocarbons) from contaminated soil. The first step was to establish a measurement technique. Hence, a column ...
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Common Treatment Train for Fuels
A treatment train is the combination of different treatment technologies. A system diagram of a common treatment train for fuels is illustrated below. The fuel contaminated soil is first treated using a soil washing process. Water is injected at the up stream side of the contaminated site. Surfactant or other additives may be added to enhance the soil washing effect. Contaminated water is pulled ...
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On-Site Thermal Desorption of PCP- and Dioxin-Contaminated Soil at the Coleman-Evans Wood Preserving Site, Whitehouse, Florida, USA
ABSTRACT Roy F. Weston, Inc. (WESTON®) has designed an indirect thermal desorption process (known as the LT3-HT) to treat solids and sludges contaminated with hazardous and toxic materials. The LT3-HT is a high-temperature, high-capacity thermal desorption system designed for treatment of semivolatile and volatile organic contaminants that require high treatment temperatures. The LT3-HT ...
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Dry Cleaner Bioremediation and Brownfield Redevelopment
Site Description Dry cleaning solvent spills in a storage area lead to the contamination of soil and ground water on the property of a 50-year-old dry cleaners in the middle of a hot brownfield redevelopment. After the contaminated soil was excavated for off site disposal to the most practical extent, residual perched ground water contamination impacted the redevelopment of the property. The ...
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Industrial Site, Houston, Texas - Case Study
Site Summary BioLogix CL bioaugmentation was implemented in combination with dual phase extraction at an industrial site near Houston, Texas to remove trichloroethylene (TCE) from ground water. The overlying contaminated soil was excavated, but perched ground water and a deeper aquifer had TCE concentrations greater than 10,000 |jg/L A dual-phase vacuum extraction system was installed to control ...
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Content Analysis of Toxic Elements in Soil by Simultaneous ICP
Contaminated soil not only leads to contamination of untreated drinking water through permeation into river water and rainwater, it adversely affects health when the soil itself is directly ingested as a child puts the ground into a stoma into a play etc. Therefore, assessment of soil toxicity using a defined method is required. I In Japan, the Soil Contamination Countermeasures Law specifies ...
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HD#7 - Groundwater BioLogix Application - Case Study
Case Summary After three underground storage tanks were removed from the location of a convenience store, investigation showed that petroleum contamination was present in a small area near the former dispenser island. The vadose-zone contaminated soil was excavated and disposed off-site. Ground water monitoring showed that the ground water impact was limited to a small area near the source of ...
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The investigation of arsenic and heavy metal concentrations in soil, water and crops around abandoned metal mines
Soils, water and crops around abandoned metal mines can be contaminated by heavy metals from adjacent tailings and waste rocks accumulated during mining operations. The results indicate that the As, Zn, Cd, and Cr concentrations exceed the soil contamination standard in many soil samples of the nearby farmlands as well as the tailings sites. In the case of water quality, the As concentrations in ...
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Kemijärvi pulp mill 2010 - Case Study
In 2010 Savaterra Greenfix at old pulp mill, polluted soil and water treatment. Soil and groundwater in the elevated concentrations were observed, particularly regarding to oils and VOCs. In order to save on transport costs and natural materials, thermal station was transferred to the factory site and all objects were restored during one summer. Savaterra Oy was responsible for excavation work, ...
By Savaterra Oy
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Evaluation of sodium lignosulphonate for the remediation of chromium–contaminated soil and water
Commercial sodium lignosulphonate, a by–product of sulphite pulp leaching, was evaluated for the remediation of soil and water contaminated with hexavalent chromium. Two series of bench–scale tests were performed: (a) removal of chromium from water using reagent binding and membrane separation; and (b) stabilisation of chromium in the soil using chemical soil flushing. Water treatment tests were ...
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Bioremediation: An Eco-Friendly Solution For Environmental Cleanup
Introduction Bioremediation is the use of microorganisms, or their enzymes to clean up environmental pollutants. It is a sustainable and cost-effective approach to clean up contaminated soil, water, and air. Bioremediation can be applied to a variety of pollutants, including petroleum, pesticides, and solvents. Bioremediation is a complex process that involves various biochemical reactions, ...
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The possible reduction pathways of 2,4,6-trinitrotoluene (TNT) by sulfide under simulated anaerobic conditions
To predict the final fate of 2,4,6-trinitrotoluene (TNT) and its intermediates in an anaerobic fermentative solution containing reduced sulfur species and to provide a basis for the adoption of remediation methods, we investigated the pathways of TNT (TNT0 = 50 mg/L) reduction by Na2S at 30 ± 1 °C in an acetic acid–sodium bicarbonate buffer. Liquid chromatography/mass spectrometry (LC/MS) was ...
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Thermal Desorption
Untitled Document Introduction: Thermal desorption is a physical separation process and is not designed to destroy organics. Wastes are heated to volatilize water and organic contaminants. A carrier gas or vacuum system transports volatilized water and organics to the gas treatment system. The bed temperatures and residence times designed into these systems will volatilize ...
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Enhanced Bioremediation
Introduction Enhanced bioremediation is a process in which indigenous or inoculated micro-organisms (e.g., fungi, bacteria, and other microbes) degrade (metabolize) organic contaminants found in soil and/or ground water, converting them to innocuous end products. Nutrients, oxygen, or other amendments may be used to enhance bioremediation and contaminant desorption from subsurface materials. ...
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