Dry Chemistry Articles

  • PGCCA winners of Yore: Where are they now?

    With the 20th Annual Presidential Green Chemistry Challenge Awards (PGCCA) ceremony drawing near, the Biobased and Renewable Products Advocacy Group's (BRAG®) Biobased News and Policy Report decided to go back and revisit some early winners to see what has become of the ...


    By Bergeson & Campbell, P.C.

  • Former Dry Cleaning Site Contaminated with PCE - Case Study

    In-Situ® Inc. TROLL® 9500 Multiparameter Sonde helps resolve treatment challenges and saves $200,000 in drilling, reagents, and consulting. A former dry-cleaning site in the Pacific Northwest, Ultra Custom Care Cleaners, was found to be contaminated with PCE (perchloroethylene). According to the U.S. Geological Survey (USGS), PCE was widely used in the dry cleaning of fabrics since the ...


    By In-Situ, Inc.

  • Europe Drugs of Abuse Testing Market Next 5 Year Forecast & Analysis

    ReportsnReports.com adds report 2014 Strategies for the European Drugs of Abuse Testing Market to its store. This new report provides a comprehensive analysis of the European drug of abuse testing market, including emerging tests, technologies, instrumentation, sales forecasts, market shares, and strategic profiles of leading suppliers. The report provides test volume and sales ...


  • OSHA announces proposed silica rule, lowering PEL, ending lengthy OMB review

    Federal efforts to protect workers from silica exposure entered a new phase Aug. 23 when the Occupational Safety and Health Administration finally announced its proposal for regulating silica dust. OSHA's proposed rule would set a permissible exposure limit (PEL) of 50 micrograms of respirable crystalline silica per cubic meter of air. The ...


    By Bloomberg BNA

  • Produced water at UGS Dolni Dunajovice

    Water is the main contaminant of natural gas. Mostly, it is a natural element of a reservoir content. When dry gas is injected into a reservoir, it absorbs volume of water there. Together with water, it absorbs hydrocarbons, which can be natural elements of the reservoir or of artificial origin and contaminants which were injected in to the reservoir with natural gas. During a withdrawal, this ...


    By Inderscience Publishers

  • Corrugated Sheet Plant

    The previous wastewater treatment was composed of the following chemicals: an acidic coagulant, caustic for pH adjustment, and an anionic polymer made down to 1% solution. The facility used 3-4 gallons of coagulant, 2-3 gallons of caustic, and 2-3 gallons of anionic flocculant (at a 1% solution) at a cost of $50/batch. The operator stated that they had low solids, they tended to overdose which ...


    By Integrated Engineers Inc.

  • Dry Wall Manufacturer

    A Midwest manufacturer of dry wall (Gypsum wall board) products was unable to reliable treat their wastewater with conventional chemistry requiring hauling 1,000 gallons/week offsite at $1.00/gallon. Floccin-I was used to treat the water and they are installing a batch treatment system (capital cost at $20,000 installed) and will be treating their wastewater at less than $0.10/gallon. Payback ...


    By Integrated Engineers Inc.

  • Latex Paint Manufacturer-2

    This company was using traditional chemistry of aluminum sulfate, lime to adjust the pH, followed by a flocculant. Switching to Floccin 1107 cut the chemical costs by 30% and decreased the number of chemicals to one. The facility was also using large quantities of DE to generate a dry cake with their bladder press. The Floccin 1107 decreased the usage of the DE by about 50% based on the visual ...


    By Integrated Engineers Inc.

  • Ammunition Manufacturing

    An ammunition manufacturing facility was having problems removing copper and zinc from their 900 gpm wastewater system. The process used lime to raise the pH from 1.5 to 10, sodium carbamate for a metal precipitant, and an anionic flocculant to increase the flock size and get the solids to settle in the clarifier. Current chemical costs are estimated at $225,000/year with a significant amount of ...


    By Integrated Engineers Inc.

  • Weathering of sulfidic shale and copper mine waste: secondary minerals and metal cycling in Great Smoky Mountains National Park, Tennessee, and North Carolina, USA

    Metal cycling via physical and chemical weathering of discrete sources (copper mines) and regional (non-point) sources (sulfide-rich shale) is evaluated by examining the mineralogy and chemistry of weathering products in Great Smoky Mountains National Park, Tennessee, and North Carolina, USA. The elements in copper mine waste, secondary minerals, stream sediments, and waters that are most likely ...


    By Springer

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