chromium impacted soils Articles

  • Morphological and transcriptional responses of Lycopersicon esculentum to hexavalent chromium in agricultural soil

    The carcinogenic, teratogenic and mutagenic effects of hexavalent chromium [Cr(VI)] to living organisms through food chain raise the immediate need to assess the potential toxicological impacts of Cr(VI) on human health. Therefore, the concentration‐dependent responses of 12 Cr(VI)‐responsive genes selected from the high‐throughput Lycopersicon esculentum cDNA microarray were examined at ...


    By John Wiley & Sons, Ltd.

  • Biological Treatment of Hexavalent Chromium Treatability Study Report

    A former XXXX was found to be impacted by hexavalent chromium [Cr(VI)]. The site Cr(VI) plume has groundwater concentrations as high as 1,150,000 μg/L in the hot spot(s). Treatability studies were conducted at Shaw Environmental & Infrastructure, Inc.’s Technology Development Laboratory (TDL) in Knoxville, Tennessee, to evaluate treatment technologies to decrease the concentration of Cr(VI) ...


  • A Tale of Two Sites - Enhanced Bioremediation of Explosives Impacted Soils

    The problem with OE compounds in soil A variety of organic explosive (OE) compounds have been used for military, geological and industrial applications throughout North America, and in most industrialized nations. During their manufacture, formulation and storage, these compounds have migrated to the soil. Compounds such as 2,4,6-trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-1,3,5-triazine ...


  • Assessing natural contents of hazardous metals in soils by different analytical methods and its impact on environmental legislative measures

    A variety of analytical techniques are commonly used to assess natural metal concentrations in soils. Although the choice of the analytical procedure may appear to be an unimportant issue, through an example from the Po Plain we document that for specific hazardous metals the arbitrary choice between separate analytical techniques may have contrasting legislative implications. Comparative ...


    By Inderscience Publishers

  • In situ bioremediation of pesticides in soil and groundwater

    This article provides a summary of the Adventus Group’s experience with treatment of organochlorine pesticides (OCPs) in soil and groundwater using DARAMEND® and EHC® bioremediation amendments. The firm has offered DARAMEND for treatment of recalcitrant compounds in soil for more than ten years in both ex situ and in-situ applications. Since OCPs bind strongly to the soil matrix, ...


  • Assessment of the Environmental Impact of Military Activities During the Yugoslavia Conflict

    1. Executive Summary Assessment Method:The study was carried out over a period of ten days by a team of expert staff from the Regional Environment Center for Central and Eastern Europe (REC) and other contracted country experts. A framework was prepared by REC headquarters and the REC's country offices in the five selected countries gathered information and data. Additional ...

  • Confidential Site (ISOTEC Case Study 60) Injection of calcium polysulfide for in-situ treatment of heavy metals (hexavalent chrome)

    ISOTEC was retained to implement a calcium polysulfide (CAPS) treatment program at a confidential site in northern New Jersey to address heavy metal impacted soils. The target contaminant of concern (COC) was hexavalent chromium [Cr (VI)]. Concentrations of Cr (VI) in soils varied from less than 240 milligrams per kilogram (mg/kg) ...

  • Treatment of a mixed CVOC and cr contaminated site using in situ chemical reduction (ISCR) and Stimulated Biotic Mineralization

    The implementation of efficient and cost-effective remedial solutions in the clean-up of impacted properties is paramount in returning brownfields and other impacted properties to viable use in the face of the recent real estate market declines. Historical site use of the Cleveland Flats project area included: a manufactured gas plant (circa. 1850), trucking terminal, & plating operations. As ...


  • Metals Stabilization Using Geochemical Fixation

    Introduction To Chemical Fixation There are several approaches to treatment of chromium and other toxic metals such as lead arsenic, and cadmium in soil and groundwater, including isolation, immobilization, toxicity reduction, physical separation, and extraction (U.S. EPA. 2002). Brief Overview Of Metals Remediation Methods: Conventional ...


    By Graus Chemicals, LLC

  • The potential for reusing treated municipal wastewater for irrigation in the Hashemite Kingdom of Jordan

    This paper elaborates on the chemical composition of wastewater at selected Wastewater Treatment Plants (WWTPs) in Jordan. These plants have immense potential of providing reused treated water for irrigation. Samples from treated effluents analysed to study the efficiency of the impact of treated water on irrigation. The results revealed the effluents from WWTPs could be used for irrigation with ...


    By Inderscience Publishers

  • Sludge characterization at Kadahokwa water treatment plant, Rwanda

    A study was carried out to characterize the sludge produced at Kadahokwa Water Treatment Plant (KWTP) in Butare to assess the effectiveness of the sludge treatment and potential impacts of sludge disposal on the environment. Parameters analyzed were chromium, nickel, cadmium, lead, copper, zinc, iron, manganese, aluminium, total nitrogen, total phosphorus, potassium and cation exchange capacity ...


    By IWA Publishing

  • In-Situ Remediation of Heavy Metals Using Sulfur-Based Treatment Technologies

    The Metal Problem Highly toxic and highly soluble metals are contained in numerous waste streams including those from power, chemical, electronics facilities, general manufacturing plants, and mining facilities. Lead, chromium, arsenic, zinc, cadmium, copper, and mercury are the most common metal contaminants found on remediation project sites (US EPA, October, 2000). Cyanide is a common ...


    By Graus Chemicals, LLC

  • Excavation, removal & reinstatement - Primary School, Fife

    Client: RPS Group (Planning and Development) Challenge: Excavate and remove hydrocarbon and chromium impacted material from a grass covered area within a school playground. Special attention and care was taken not to disturb underground services situated within the excavation area. Applied technology: Remove material for reuse where ...


    By Soilutions Ltd

  • Heavy Metals in Waste

    Untitled Document Summary and discussion The aim of this report has been to demonstrate the existing knowledge regardng the harmful effects of heavy metals, the ...

  • Perchlorate Remediation Project Case Study

    ARCADIS was contracted in 2000 to lead the development, evaluation and selection of a final groundwater remedy for this 94-acre site in California. As part of this work, ARCADIS is also participating in the evaluation of innovative technologies with the potential to treat soil impacts in the multiple source areas across the site. Specifically, the project is focused on the remediation of seven ...


    By Arcadis

  • Contaminated land site investigation in Bristol

    Client: Property Developer Location: Bristol, UK Services: Contaminated Land Risk Assessment, Human Health Risk Assessment, Controlled Waters and Ecological Risk Assessment. Summary: ESI’s contaminated land assessment ensured that this former brickworks site was not registered as contaminated land under Part 2A of ...

  • Mercury Removal

    The Adventus Mercury Removal AdvantageResponsible environmental experts in the academic, business and regulatory communities are increasingly more worried about the high levels of mercury contamination affecting many parts of the world. The international community is focusing their attention on this growing problem and EHC-M will clearly help, as it is perfectly suited for treating environments ...


  • KB-1® Bioaugmentation Leading to Site Closure

    Problem DefinitionIn 2004, the site was an active manufacturing facility with plume trichloroethene (TCE) concentrations ranging from 1 to 20 milligrams per liter (mg/L), and hexavalent chromium (Cr[VI]) ranging from 0.5 to 7 mg/L. Intermediate degradation products of TCE were present in only trace concentrations in this primarily aerobic aquifer. The site source area was excavated in March ...


    By SIREM

  • Arsenic Removal

    The Arsenic Removal ProcessArsenic, a naturally occurring element, is found throughout the environment; for most people, food is the major source of exposure. Acute (short-term) high-level inhalation exposure to arsenic dust or fumes has resulted in gastrointestinal effects (nausea, diarrhea, abdominal pain); central and peripheral nervous system disorders have occurred in workers acutely ...


  • Geotube Dewatering Technology Provides Expertise in the Clean-Up of Contaminated Sediments - Case Study

    Geotube units offer an effective solution for contaminated sites to manage the recovery and containment of PCBs, heavy metals, BTEX, PAHs, PACs, and other hazardous materials. Contaminated sediments are a common problem for communities and industries around the world. Past spills, leaks, discharges, and improper disposal or management of hazardous materials and wastes often result in ...

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