arsenic soil remediation Articles

  • Thermal Remediation of Karst Limestone – Redstone Arsenal, Alabama

    Abstract: Electrical resistance heating (ERH) was used for the thermal remediation of two sites at Redstone Arsenal (RSA) near Huntsville, Alabama. Both sites feature karst limestone with heavy clay overburden. The two sites are located about five miles (10 km) apart, but differ considerably in the characteristics of the limestone. At site RSA-053, the heavy clay is underlain by very hard, ...


    By TRS Group, Inc.

  • The fate of arsenic in contaminated paddy soil with gypsum and ferrihydrite amendments

    Ferrihydrite and gypsum (CaSO4·2H2O) are two chemicals which were suggested to reduce the bioavailability of arsenic (As) in agricultural field. The efficiency of those chemicals added in the paddy field was investigated by pot culture in this study. The results showed As uptake by rice under ferrihydrite treatment was significantly ...


    By Inderscience Publishers

  • 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

  • Proven alternatives for aboveground treatment of arsenic in groundwater

    This issue paper identifies and summarizes experiences with proven aboveground treatment alternatives for arsenic in groundwater, and provides information on their relative effectiveness and cost. The information contained in this paper can also be found in the report “Arsenic Treatment Technologies for Soil, Waste, and Water”, EPA542-R-02-004 (Ref. 1.12), which provides cost and ...


    By Absolute Systems Inc.

  • Airport Lead and Arsenic Removal - Case Study

    City of Cincinnati The Airport was built on a former military firing range and apple orchard. To complete the removal of all the lead and arsenic, we excavated and removed over 20,000 tons of treated and non-treated contaminated soil. Then we stabilized 11,000 tons of hazardous soil on site. We graded and capped the site all while complying with FAA, City and Airport ...

  • Human health risk assessment of an arsenic contaminated golf course

    St Michael’s Jubilee Golf Course in Widnes was constructed between 1964 and 1986, by re-grading chemical waste deposits generated from local industries, which were then covered with a thin layer of topsoil and grassed over.  An estimated 4.5 million tonnes of waste materials are present beneath the golf course.  The site is underlain by alluvium and a major aquifer, the Sherwood ...


    By ESI Consulting Ltd

  • What You Should Know about Arsenic Treatments

    The nutrients that you put into your body directly impact your health. If you consume water with harmful substances, bacteria, or metalloids, it could create serious issues. While not a metal, arsenic is considered a metalloid because it contains many of the same properties as metallic elements. Typically found in soil, arsenic is harmful when ingested. Unfortunately, many Americans unknowingly ...

  • In situ Chemical Oxidation: An Innovative Groundwater Remediation Technology

    A promising new technology, in situ Chemical Oxidation (ISCO), has the potential to supplant the more widely used pump-and-treat groundwater remediation technology by destroying groundwater contamination in situ (in place). ISCO is the process of oxidizing contaminants in the groundwater and soil by injecting water containing high concentrations of an oxidant to the site of the contamination. ...


    By AECOM

  • Properties and Behavior of Inorganics in Contaminated Soil

    Often, specific technologies may be ruled out, or the list of potential technologies may be immediately narrowed, on the basis of the presence or absence of one or more of the chemical groups. The relative amounts of each may tend to favor certain technologies. Metals may be found in the elemental form, but more often they are found as salts mixed in the soil. At the present time, treatment ...

  • 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

  • Sample Handling Strategies for Accurate Lead-In-Soil Measurements in the Field and Laboratory

    ABSTRACT The inhomogenous lead-in-soil matrix can present serious obstacles to accurate sample collection and handling. In typical lead-in-soil measurement, particle size related errors in sampling and sample handling often exceed all other sources of error. The magnitude of error can vary widely depending on the particulate nature of the lead contaminant and the effectiveness of control ...

  • Comparing Field Portable X-Ray Fluorescence (XRF) To Laboratory Analysis Of Heavy Metals In Soil

    ABSTRACT Field portable x-ray fluorescence (XRF) continues to gain acceptance as a complement to traditional laboratory testing of metal contaminated soil. The quality of data produced by field XRF varies with site conditions, soil composition, and sample preparation. Quality assurance protocols for the field method usually require that a number of field samples be split and sent to a ...

  • Use of earthworms (Eisenia fetida) and vermicompost in the processing and safe management of hazardous solid and liquid wastes with high metal contents

    Two feasibility studies using the earthworm (Eisenia fetida) and vermicompost in the processing and remediation of solid and liquid wastes with high metal content are presented: vermicompost as adsorbent substrate for remediation of wastewaters contaminated with metals; earthworms for remediation of arsenic (As) and mercury (Hg) in landfill soils. The feasibility of vermicompost for the ...


    By Inderscience Publishers

  • 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

  • Divestment of a food manufacturing plant

    Client: Confidential Location: Somerset, Southwest England, UK Services: Strategic Advice on Brownfield Development, Site Investigation, Risk Assessment Summary: ESI was able to identify options for managing land contamination to maximise the value of site divestment, based on high quality site investigation and risk ...


    By ESI Consulting Ltd

  • 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 ...


    By ESI Consulting Ltd

  • National Petroleum Reserve Site (Occidental Petroleum Co.) - case study

    Investigation, remediation, and closure activities Elk Hills, Central California The Summary We've helped establish a statistical methodology using soil data to evaluate and develop a site-specific background concentration for metals that are naturally occurring above screening criteria, but also may be present due to historical site ...


    By AlterEcho

  • 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 ...

  • Incineration

    Introduction: High temperatures, 870 to 1,200 °C (1,400 to 2,200 °F), are used to volatilize and combust (in the presence of oxygen) halogenated and other refractory organics in hazardous wastes. Often auxiliary fuels are employed to initiate and sustain combustion. The destruction and removal efficiency (DRE) for properly operated incinerators exceeds the 99.99% requirement for hazardous waste ...

  • Triad expedites brownfields redevelopment in Fairbanks

    The Fairbanks North Star Borough (FNSB) used Triad in 2006-2007 to assess environmental conditions at a municipal property along the Chena River in Fairbanks, AK. FNSB accelerated the site investigation as part of a brownfields assessment grant received from the U.S. EPA in 2005. Low-level contamination had been identified onsite in past investigations, but its extent and impact on future ...

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