soil blending Articles

  • Incinerator Residue for Roads

    A study was conducted by the authors to assess the feasibility of using incinerator residue in road construction. Residues from Singapore incinerators were characterized. Various combinations of mixes comprising local clayey-silty-sandy soil and incinerator residue with or without lime were tested for their suitability for use as road subbase/subgrade. Also, bituminous mixes comprising varying ...


    By ASTM International

  • Defluoridation of groundwater using mixed Mukondeni clay soils

    Excess fluoride in drinking water is harmful to human health and therefore it needs to be removed from water before consumption. The potential of locally available mixed Mukondeni clay soils (MMCS) as a cheap adsorbent for the removal of fluoride from aqueous solution was investigated. Characterization of MMCS was done by X-ray fluorescence, X-ray diffraction, scanning electron microscopy, ...


    By IWA Publishing

  • Toxicity of diesel contaminated soils to the subantarctic earthworm Microscolex macquariensis

    Several fuel spills have occurred on subantarctic Macquarie Island (54°30′ S 158°57′ E) associated with storing fuel and generating power for the Island's research station. The Australian Antarctic Division began full‐scale, on‐site remediation of these sites in 2009. To develop appropriate target concentrations for remediation, acute and chronic tests were developed with the endemic earthworm, ...


    By John Wiley & Sons, Ltd.

  • Toxicity of fuel contaminated soil to antarctic moss and terrestrial algae

    Fuel pollution is a significant problem in Antarctica, especially in areas where human activities occur, such as at scientific research stations. Despite this, there is little information on the effects of petroleum hydrocarbons on Antarctic terrestrial biota. This paper demonstrates that the Antarctic mosses Bryum pseudotriquetrum, Schistidium antarctici, Ceratodon purpureus and the Antarctic ...


    By John Wiley & Sons, Ltd.

  • The use of microbial gene abundance in the development of fuel remediation guidelines in polar soils

    Terrestrial fuel spills in Antarctica commonly occur on ice‐free land around research stations as the result of human activities. Successful clean‐up of spills requires appropriate targets that enable contaminated sites to be signed off as no longer posing environmental risk following remediation. These targets are based on knowledge of the impacts of contaminants on the soil ecosystem and on ...


    By John Wiley & Sons, Ltd.

  • Composting case study: Kurtz Bros tackles yard waste contamination

    Kurtz bros., INc. (Columbus, OH) supplies both consumers and landscape contractors with high-quality mulch, compost, soil amendments and topsoil. The company operates several organic recycling facilities throughout the state of Ohio spanning from Columbus (the state’s largest organic recycling facility) to Cleveland. Its local yard waste facilities accept everything from leaves and grass ...


    By Waste Advantage Magazine

  • New ground ripe for foundry sands

    The US foundry industry uses around 100 million tons of sand each year to produce metal castings. Although the sand is recycled inside the casting process, about 10 percent of the sand is discarded and potentially could be utilized in commercial soil blending operations. Currently only around a million tons of that sand is recycled; the remaining 8-12 million tons are landfilled, according to the ...

  • Editorial: The Business Case

    How do organics recyclers measure success? That is one question we are exploring in preparation for the Opening Plenary — The Business Case For Organics Recycling — at BioCycle EAST COAST17, April 4-7, 2017 in Ellicott City, Maryland, just outside Baltimore. We know many successful organics recyclers, that is if success is defined by factors such as longevity, market leadership, ...


    By BioCycle Magazine

  • Organics Recycling Program Shows Continued Growth

    LAUNCHED in 2000 under the leadership of Nancy Nevil, Director of Sustainability and Environmental Services, the recycling program in the City of Plano, Texas has steadily grown. A grant from the North Texas Council of Governments (NTCOG) provided funds for 95-gallon wheeled carts, biodegradable bags, and educational materials to begin this unique program. Initial participants were the Plano ...


    By BioCycle Magazine

  • Critical Operations Go Under Cover

    For a number of years, composting facilities have been using fabric structures to house finished compost screening, soil blending and product storage. They’ve also employed the structures to cover or fully enclose feedstock receiving and mixing. And some have gone as far as to put active composting operations inside fabric buildings. “More and more facilities are putting in fabric ...


    By BioCycle Magazine

  • Comparative study on nutrient removal of agricultural non-point source pollution for three filter media filling schemes in eco-soil reactors

    Nutrients (nitrogen and phosphorus) from agricultural non-point source (NPS) pollution have been increasingly recognized as a major contributor to the deterioration of water quality in recent years. The purpose of this article is to investigate the discrepancies in interception of nutrients in agricultural NPS pollution for eco-soil reactors using different filling schemes. Parallel eco-soil ...


    By IWA Publishing

  • Innovation Key To Biosolids Digestion

    A $400 million project at the Blue Plains Advanced Wastewater Treatment Plant (AWTP) in Washington, D.C., involves building an innovative biosolids management system comprised of a thermal hydrolysis process, four 3.8-million gallon mesophilic digesters (measuring 70-ft tall by 100-ft in diameter) with fixed covers, a cogeneration system consisting of three 4.6-MW Solar Mercu ry 50 gas turbines ...


    By BioCycle Magazine

  • Determining Bentonite Content in Soil-Bentonite Mixtures Using Electrical Conductivity

    A procedure based on electrical conductivity is described for measuring bentonite content in soil-bentonite mixtures having a wide range of bentonite contents. Standard equipment used for sedimentation analysis and an electrical conductivity meter are required. The procedure employs calibration curves relating electrical conductivity and bentonite concentration for soil-bentonite-water slurries. ...


    By ASTM International

  • Common Treatment Train for Explosives

    In general, no single technology can remediate an entire site. Several treatment technologies are usually combined at a single site to form what is known as a treatment train. A system diagram of a common treatment train for explosives is illustrated below. Explosive contaminated soil is first excavated from the site and transported to a windrow composting site. During windrow composting, ...

  • Fast bioremediation of a hydrocarbon contaminated site

    The use of bioremediation has been demonstrated to be a very effective treatment technology for a hydrocarbon contaminated site within a month of starting. In addition to selection and preparation of an appropriate microbial inoculum the other key considerations were effective mixing, addition of suitable nutrients and maintenance of soil moisture levels. Careful management of all these ...


    By Biofuture Ltd

  • Microwave Drying of Soils

    Drying of soil specimens in microwave ovens can permit rapid determination of moisture content; such determination is very important in field quality control of earthwork construction. A laboratory study was performed to investigate differences between soil moisture contents based on microwave oven drying and moisture contents developed from conventional drying procedures. For nine materials ...


    By ASTM International

  • Zn and Cd hyperaccumulating characteristics of Picris divaricata Vant.

    A field investigation and a pot experiment were conducted to study the Zn and Cd accumulation in Picris divaricata Vant. Under natural conditions, the average Zn and Cd concentrations in shoot of P. divaricata were 5911 and 246 µg g−1 (DW), with the maxima of 18,339 and 585 µg g−1, respectively. Grown on a mixed soil for three months, P. divaricata accumulated up to 15,183 μg g−1 Zn and 364 µg ...


    By Inderscience Publishers

  • Engineering Properties of Tire Chips and Soil Mixtures

    The primary objective of the research described herein is to assess the pertinent engineering properties for reusing shredded scrap tires as a construction material for light-weight fill material in highway construction, for drainage material in highway and landfill construction, and for other similar applications. Reuse of scrap tires would not only provide a means of disposing of them but would ...


    By ASTM International

  • Cuyama Case Study (Ex Situ Gas Thermal Remediation(GTR™))

    Ex Situ Thermal Desorption was used to successfully treat TPH-d and TPH-g from a former AST spill site in the agricultural zone in Central California. Affected soils were excavated and then placed “in a pile”, and Gas Thermal Remediation (GTR©) horizontal wells were placed into the pile during its three day construction. The piled soils represented mixed sands and high TOC soils, ...

  • Remediation of phenanthrene contaminated soils by nonionic–anionic surfactant washing coupled with activated carbon adsorption

    Batch experiments were conducted to investigate the performance of nonionic–anionic mixed surfactants and their recovery through activated carbon. The solubilization capabilities of mixed surfactants toward phenanthrene (PHE) were reduced by addition of anionic surfactant to the mixed systems. Results showed that sorption of Triton X-100 (TX100) onto soil decreased with increasing mass ...


    By IWA Publishing

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