soil oxygen Articles

  • Presentation: An oxygen sensor for continuous long-term measurement of soil respiration.

    Presentation: An oxygen sensor for continuous long-term measurement of soil ...


    By Apogee Instruments, Inc.

  • Field-Scale Application of Oxygen Releasing Compound in Deep Vadose Soils

    Summary Paz Kibutz Galuyot is a large gas-station that underwent complete renovation of its infrastructure, as well as remediation of the contaminated saturated and unsaturated zones, under the old tank farm and dispensers. The remediation project has started after one of the tanks in the old tank farm failed tightness test and appeared to contaminate the unsaturated zone down to ...


  • EXPERIENCES WITH THE USE OF OXYGEN RELEASE COMPOUND IN LOW PERMEABLE SOIL

    Introduction The new Copenhagen Metro is planned to cross an oil-polluted site with an area of 300 m² with oil concentrations of up to 7,000 mg/kg in the soil and 1-2 mg/l in the groundwater.  The oil pollution at the site arises from leaking underground storage tanks and pipelines belonging to a former service station. In order to reduce the costs of handling the polluted soil and to avoid any ...


    By REGENESIS

  • Bioremediation of soil

    In our experience, Bioremediation is best accomplished with Bio-augmentation, the addition of large numbers of selected micro-organisms grown in the production laboratory. In addition to bio-augmentation, several physical and chemical parameters must be controlled in order to obtain optimal growth and maximum degradation of soil contaminants. The major factors that are controlled during ...

  • Oxygen Release Compound - Canada Case Study

    EHC-O Oxygen Releasing Compound - ES&E Magazine (May 2007) A whimsical comment by the author Michael McClary compels one to realize that more intuitive processes can be overlooked when considering technology’s abilities to improve our natural environments. He said: “Irrigation of the land with seawater desalinated by fusion power is ancient. It’s called rain.” In situ treatment of ...


  • In situ bioremediation of pentachlorophenol by dissloved oxygen injection

    ABSTRACT: In September of 1982 a faulty valve on a railroad tank car resulted in the accidental release of a wood treating solution containing pentachlorophenol. Subsequent investigations indicated that the wood treatment dip tank had also been a source of soil and ground water contamination. A ground water and product extraction system was installed soon after the rail car release, but after 13 ...


    By RNAS Remediation Products

  • Natural Attenuation in Soils

    Introduction Surface and subsurface soils have different characteristics in natural attenuation. Mobile contaminants in subsurface soils diffuse into soil vapor and aqueous phase and thus are relatively easily subject to natural subsurface processes that can attenuate these contaminants. Most high-molecular-weight (persistent) organic and many inorganic contaminants will be immobilized in the ...

  • Bioremediating Explosives Contaminated Soil

    From the beginning of World War II until the 1970s, the site that is now the Naval Surface Warfare Center in Crane, Indiana (NSWC-Crane) was the home of a major bomb manufacturing operation. Explosive compounds such as TNT, Royal Demolition Explosives (RDX) and Her Majesty’s Explosive (HMX) were handled loose and drifted through air vents. Often, the material settled on the roofs of buildings, ...


    By BioCycle Magazine

  • Chromium detection in water and soil...

    What is chromium? Chromium is a metal that is widely distributed in the earth’s crust (soil and rocks), air and water. Naturally occurring chromium occurs mainly in the chromium (III) form as chromite ore, which contains oxygen, chromium (III) and other metals such as iron. Chromium (VI) compounds are produced commercially from chromite ore for a wide variety of uses. ...


    By Camlab Limited

  • 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 ...


    By QED Environmental Systems

  • Fuel oil contamination in surrounding soils

    LOCATION:  Batavia, New YorkPROJECT DATE:  September, 1992 to December, 1993CLIENT:  Woodward-Clyde Consultants BACKGROUND: When two 15,000 gallon underground storage tanks were removed from a former manufacturing facility site, #2 and #4 fuel oil contamination was found in the surrounding soils. Approximately 1,600 cubic yards of soil with total petroleum hydrocarbon ...


    By Terra Systems, Inc. (TSI)

  • Data Requirements for Soil, Sediment, and Sludge

    Site soil conditions frequently limit the selection of a treatment process. Process-limiting characteristics such as pH or moisture content may sometimes be adjusted. In other cases, a treatment technology may be eliminated based upon the soil classification (e.g., particle-size distribution) or other soil characteristics. Soils are inherently variable in their physical and chemical ...

  • Tyco earth tech - soil bioremediation

    Summary: In June 2006 EarthTech (a member of the Tyco group of companies) undertook the bioremedial clean-up treatment of hydrocarbon contaminated muddy gravel at one of their sites in Hungary. The muddy gravel was contaminated with TPH levels in excess of 300,000 mg/kg in parts and was a stern test for the feasibility of bioremediation within the region. The project was ...


  • Soil Reclamation Through Chemical Oxidation

    Supplying ozone (chemical) oxidation equipment to clean soil and groundwater is Kerfoot Technologies' specialty. In the past, contaminated soil was dug and removed to a disposal location. Present-day engineering relies increasingly on smart in-situ technologies with minimal site disturbance. Chemical oxidation is at the forefront of those technologies. ...

  • Remediation of BTEX in Groundwater with LNAPL Using Oxygen Releasing Materials (ORM).

    Abstract: A field scale study was conducted at a former gasoline service station to evaluate the remediation of groundwater contaminated with dissolved benzene, toluene, ethylbenzene, and xylenes (BTEX) using oxygen-releasing materials (ORM). The injection of oxygen through ORM slurry was the remedial alternative chosen to enhance the in-situ microbial degradation of the BTEX in groundwater. ...


    By REGENESIS

  • Biodegradability of Alternative Oxygenates as a Sole Carbon Source or in the Presence of BTEX

    ABSTRACTThe biodegradability of alkylate compounds in serum bottles was investigated as a sole carbon source or in the presence BTEX. The biomass was acclimated with 2,3-dimethyl pentane (2,3- DMP), 2,4-dimethyl pentane (2,4-DMP) and 2,2,4-trimethyl pentane (2,2,4-TMP) in porous potreactors. The alkylates (2,3-DMP, 2,4-DMP, and 2,2,4-TMP) were completely biodegraded in all the sets of ...

  • Study of Natural Bioremediation Projects Using Time-Release Oxygen Compounds.

    ABSTRACT: Enhanced natural bioremediation studies are being conducted on a series of sites throughout the midwest United States. Each site exhibits a unique geologic condition, contaminant concentration, enhancement application, and remediation goal. Based on a review of 14 sites, the usage and effectiveness of enhanced bioremediation has been categorized to provide general guidelines for ...


    By REGENESIS

  • Feasibility of calcium peroxide as an oxygen releasing compound in treatment walls

    This research investigates the use of a proprietary formulation of calcium peroxide as an oxygen releasing compound in a treatment wall. Laboratory scale column studies evaluated the release of oxygen and the permeability effects resulting from a mixture of the calcium peroxide and a representative aquifer sand (40-mesh Unimin sand). Influent water was prepared at an average dissolved oxygen ...


    By Inderscience Publishers

  • Reduction of ammonia emissions during composting by Uncoupling of oxygen demand and heat removal

    Intensive pig production systems result in high emissions of ammonia, odour and greenhouse-gases (methane and laughing gas) by exhaust ventilation air. Moreover, large amounts of manure (faeces and urine) are produced with insufficient nearby land for applications (Imbeath, 1998). These outputs lead to environmental problems related to ...


    By ORBIT e.V.

  • 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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