soil contaminant Articles

  • 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 ...


    By ASTM International

  • 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 ...


    By Sarva Bio Remed, LLC

  • A view on the effects induced by low irradiation contamination of soil and atmospheric impact on plant populations in nature

    At present, a possible radiation effect is estimated as a function of dose irradiation although it is strongly dependent more on the environmental factors. The consequences of low doses of internal irradiation linked to chronic soil contamination and of external irradiation associated with short or prolonged atmospheric impacts for plant populations in nature are analysed in this paper. The ...


    By Inderscience Publishers

  • 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

  • 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 ...

  • BOS 200® - TEPH

    Residual soil contamination from small petroleum surface spills needed to be brought under the Colorado soil standards of 500 ppm. The site was treated with Trap & Treat® BOS 200® in April 2004 and in August 2004 was submitted to the state for closure. In October, the contractor received a No Further Action letter from the State of Colorado for this ...

  • 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 ...

  • 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 sectors as ...

  • Fighting soil contamination with XRF

    Soil contamination Complying with new environmental regulations is a fast growing concern for companies and local officials tasked with ensuring that industries reduce pollution and clean up after themselves. It’s a particularly challenging issue when it comes to soil contamination It’s not always easy to detect as it silently contaminates crops and the ground water supply. XRF ...

  • Decontamination of soil contaminated with petroleum grease

    Contamination modifies the engineering properties of soil, thereby restricting its further use either as a construction material or as a supporting medium. Due to the scarcity of land, it becomes imperative to reuse the land for infrastructure developmental activities. Out of numerous soil contaminants, automobile grease is one of the most prominent. Considering the cumulative impact of ...


    By Inderscience Publishers

  • Titanium as an indicator of residual soil on arid-land plants

    Titanium (Ti) has been suggested as a soil contamination indicator for plant samples slated for trace element analysis because it is abundant in soil but not in plants. Based on results from our survey of regional soils and plants for cesium (Cs), we sought to confirm Ti as a valid soil contamination indicator reasoning that there are three sources of Ti associated with plant samples: (i) ...

  • Soil treatment by solvent extraction and catalytic hydrodehalogenation

    We investigated the extraction of halogenated hydrophobic organic contaminants (HHOCS) from soil, and the subsequent catalytic hydrodehalogenation of extracted HHOCs. We used water/ethanol mixtures as the solvent and pentachlorophenol and 1,2,4,5–tetrachlorobenzene as target contaminants. The efficiency of extraction improved with increasing contact time and/or increasing ethanol fraction ...


    By Inderscience Publishers

  • Treatment of Oil-Contaminated Soils for Identification and Classification

    An experimental investigation was performed to evaluate the effects of oil contamination on soils and to establish a methodology to identify and classify contaminated soils. Identification and classification tests were performed before treatment, cleaning, stabilization, or disposal of contaminated soils.There are no standards for identification and classification of contaminated soils. ...


    By ASTM International

  • Growth response and tolerance of Job's tears (Coix lacryma-jobi L) to arsenic in spiked soils

    Job's tears (Coix lacryma-jobi L.), a perennial herbaceous plant, was cultured in soils spiked by arsenic. The results show that Job's tears rapidly grows with high biomass and strongly tolerates with normal accumulation for As in lightly or moderately spiked soils. It insensitively responds to As changes when the content of As in soils is less than 40 mg kg−1 while the concentration of As in ...


    By Inderscience Publishers

  • Ability of indigenous Bacillus licheniformis and Bacillus subtilis in microbial enhanced oil recovery

    Microbially produced lipopeptide have been isolated and studied for microbial enhanced oil recovery. About 60 gram positive bacteria isolated from soil contaminated with crude oil, near the crude oil storage tank in Tehran Refinery, Tehran, Iran. However, most of these studies have produced lipopeptide by one of the pure-culture microbes ...

  • New contaminated soil legislation in Spain

    MediTerra Consultors Ambientals, S.L. is an independent company which activity is oriented to the investigation and remediation of contaminated soils and groundwater and the performance of Environmental Audits and Due Diligences. From our experience, soil is one of the most sensitive and vulnerable contamination receptors in Spain and the growing number of contaminated sites is jeopardizing both ...

  • Surfactant–enhanced remediation of soils contaminated with petroleum hydrocarbons

    An experimental programme was undertaken to reclaim the soils contaminated with petroleum hydrocarbons. Two types of locally available soils, clay with low compressibility and poorly graded sand, were chosen for the study. Both the soils were contaminated with varying percentages of used engine oil and gasoline. Anionic surfactant Sodium Dodecyl Sulphate (SDS) was used to reclaim the contaminated ...


    By Inderscience Publishers

  • 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 ...


    By Inderscience Publishers

  • Cadmium adsorption–desorption of brown soil with freeze–thaw cycles in northeast China

    Adsorption–desorption characteristics of cadmium by brown soil, a typical soil in north–eastern China, were studied under different freeze–thaw cycles by using equilibrium adsorption isotherms. Freeze–thaw cycles were represented by temperatures of –30°C and 30°C, respectively. Both freezing and thawing conditions were implemented for three days each and the number of freeze–thaw cycles examined ...


    By Inderscience Publishers

  • Comparison of extractability of Cd, Cu, Pb and Zn with sequential extraction in contaminated and non-contaminated soils

    Various extraction procedures were employed for measuring extractable concentrations of potential toxic elements in soil. The extractability of Cd, Cu, Pb and Zn in four contaminated and four non-contaminated soils of Japan, was compared by single extraction (CaCl2, DTPA, NH4Cl, 0.1 M HCl and 1 M HCl ) and sequential extraction procedures [(six operationally defined chemical phases, viz. water ...

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