bentonite clay Articles

  • Activation thermodynamics of virus adsorption to solids

    The kinetics of bacteriophage MS2, T2, and f2 adsorption to powdered nitrocellulose and disrupted Seitz S1 filters at pH 7 were determined as a function of temperature. Data from these studies were combined with data produced in a previous study on MS2 adsorption to clay by Stagg et al. (Appl. Environ. Microbiol. 33:385-391, 1977). These workers studied the adsorption of MS2 to bentonite clay as ...

  • Treatment of oil contaminated soil from a wyoming refinery

    An oily soil sample was shipped from the refinery site to the test Laboratories on June 17, 1995. The sample was stored at 4 °C until testing began. The sample was in the form of a dense pasty mud, black in color, and consisted of oily residues mixed with what appeared to be bentonite clay. Characterization showed the ...


    By Challenge Technology

  • Application of cryptocrystalline magnesite-bentonite clay hybrid for defluoridation of underground water resources: implication for point of use treatment

    A new synthesis method was established to fabricate a nanocomposite material comprising of cryptocrystalline magnesite and bentonite clay that has high adsorption capacity for ionic pollutants. To synthesize the composite at 1:1 weight (g): weight (g) ratio, a vibratory ball mill was used. Batch adsorption experiments were carried out to determine optimum conditions for fluoride adsorption. ...


    By IWA Publishing

  • Adsorption of As, B, Cr, Mo and Se from coal fly ash leachate by Fe3+ modified bentonite clay

    Fly ash contains the potentially toxic elements As, B, Cr, Mo and Se which upon contact with water may be leached to contaminate surface and subsurface water bodies. This study aims to evaluate the adsorption of these elements from coal fly ash leachates on Fe3+-modified bentonite (Fe-Bent); such modification improved the physicochemical properties of bentonite clay. For optimization of ...


    By IWA Publishing

  • Restoring a gravel/cobble substrate trout stream, Swift Run Creek

    River Restoration Project on Swift Run Creek, Removal of Bentonite in Trout Stream to Restore Gravel/Cobble Substrate using Sand Wand™. Swift Run Creek is a trout stream 25 miles north of Charlottesville, Virginia. During a drilling project near Elkton, VA, bentonite was used as a lubricant in horizontal directional drilling under the creek, and also served to provide a seal around the ...


    By Streamside, LLC.

  • Defining an exposure‐response relationship for suspended kaolin clay particulates and aquatic organisms – work toward defining a water quality guideline for suspended solids

    Water quality guidelines for suspended solids generally rely on the percentage 'departure from reference condition', an approach that has been criticised. Attempts to develop a biological effects‐base guideline have, however, been confounded by low data availability. Furthermore, the high biological response variability to suspended solids exposure suggests organisms are responding not only to ...


    By John Wiley & Sons, Ltd.

  • Multi-metals column adsorption of lead(II), cadmium(II) and manganese(II) onto natural bentonite clay

    The present work was aimed at evaluating the multi-metals column adsorption of lead(II), cadmium(II) and manganese(II) ions onto natural bentonite. The bentonite clay adsorbent was characterized for physical and chemical properties using X-ray diffraction, X-ray fluorescence, Brunauer-Emmett-Teller surface area and cation exchange capacity. The column performance was evaluated using adsorbent ...


    By IWA Publishing

  • Organoclay MRM removes mercury from New Jersey construction site - Case Study

    Location East Rutherford, New Jersey Products Used Organoclay MRM A national remediation contractor was tasked with the construction and operation of a groundwater treatment system for a large excavation site in East Rutherford, NJ. The site owner is a multinational chemical company, and the groundwater was contaminated with organics, arsenic, and ...


    By CETCO

  • Economics of super absorbent polymers and waste stabilization

    Economics of Super Absorbent Polymers & Waste Stabilization The use of super absorbent polymer (superabsorbent polymer or SAP) in waste stabilization offers many advantages over more conventional absorbents. These advantages include: • Minimal increase in waste volume or weight • Lower transport fees due to less loads • Lower total landfill disposal fees due since waste volume has not ...

  • Ultrafine Grinding Mill Wiki

    An overview of ultrafine grinding mill Its crushing range is quartz, feldspar, porcelain soil, clay, bentonite, calcite, talc, barite, fluorite, clay, gypsum and other non-inflammable and explosive mineral materials with a hardness of less than Mohs grade 7. It is named according to the fineness of grinding materials and ...

  • 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 ...

  • Clays for heterogeneous photocatalytic decolorization of wastewaters contaminated with synthetic dyes: a review

    Photocatalysis is one of the most environment-friendly and technologically viable advanced oxidation processes. Compared to conventional thermal, biological, and physicochemical treatments, photocatalytic processes have more moderate reaction conditions and higher efficiency. They are a promising technology for the treatment of dye wastewaters, particularly those that have toxic and high ...


    By IWA Publishing

  • Landfill Liners Vary by Application

    It was in 1991 that the Environmental Protection Agency promulgated its Criteria for Municipal Waste Landfills that set location restrictions, design and operating standards, groundwater monitoring requirements, corrective actions, closure requirements, and more for landfills. It was these rules that mandated that landfills be lined on the sides and bottom before waste is deposited and capped on ...


    By Agru America, Inc.

  • Pendulum Grinding Mill

    Pendulum mill is also called as suspension roller or Raymond mill. It is a "ring and roller" powder-making mill equipment, which is combined with air flow screening and pneumatic conveying. The pendulum grinding mill belongs to the roundel immovable mill and has high universality. It also has the characteristics of continuous powder ...

  • Micro Powder Mill

    GKW Micro Powder Mill is mainly used in chemical industry such as grinding glass, rubber, pesticides, enamel, paint, phosphate fertilizer, paper. Hardness below seven Moh's hardness following humidity below 6% non-flammable and non-explosive materials. Such as talc, barite, calcite, limestone, manganese ore, iron ore soil, chrome ore, quartz, gypsum, bentonite, etc.   Micro Powder Mill ...

  • Pendulum Grinding Mill

    Pendulum mill is also called as suspension roller or Raymond mill. It is a "ring and roller" powder-making mill equipment, which is combined with air flow screening and pneumatic conveying. The ...

  • Analysis of Hydraulic Gradient Effects for Laboratory Hydraulic Conductivity Testing

    A theoretical model is presented that characterizes the effect of hydraulic gradient on measured hydraulic conductivity in the laboratory. A closed-form equation is derived for the distribution of total head within a hydraulic conductivity test specimen as a function of specimen height, boundary stress conditions, compression index, and change of hydraulic conductivity index. From this ...


    By ASTM International

  • Micro Powder Mill

    GKW Micro Powder Mill is mainly used in chemical industry such as grinding glass, rubber, pesticides, enamel, paint, phosphate fertilizer, paper. Hardness below seven Moh's hardness following humidity below 6% non-flammable and non-explosive materials. ...

  • Root penetration through sealing layers at mine deposit sites

    To prevent acid mine drainage arising from oxygen and water penetration of sulphide-rich mine tailings, the tailings are covered with layers of dry sealing material. Plant roots have a great ability to penetrate dense materials, and if the roots are able to penetrate the sealing layer of a tailings deposit, its oxygen-shielding properties could be reduced. The objective of this study was to ...


    By SAGE Publications Ltd

  • Destabilization dynamics of clay and acid-free polymers of ferric and magnesium salts in AMD without pH adjustment

    The physicochemical treatment was employed to treat acid mine drainage (AMD) in the removal of turbid materials using clay only (exp A) and a combination of clay, FeCl3 and Mg(OH)2 (exp B) to form a polymer. A 5 g sample of clay (bentonite) was added to 1.2 L of AMD and treated in a jar test at 250 rpm for 2 min and reduced to 100 rpm for 10 min. A 200 mL sub-sample from the 1.2 L mother ...


    By IWA Publishing

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you