silica monitor Articles

  • Low Background Solid Phase Extraction and Capillary GC Analysis of Chlorinated Pesticides

    Solid phase extraction has been the main focus for sample preparation for monitoring semivolatiles, including pesticides, in aqueous hazardous waste samples because it provides rapid, on-site sample preparation and analysis.   Supelco's ENVI-8 polumerically bonded octylsilane-silica packing provides good performance for solid phase extraction of pesticides for aqueous samples.   ...


    By MilliporeSigma

  • Improved Purge-Trap/GC Analysis of Volatiles in Drinking Water by US EPA Method 524.2

    The VOCARB 3000 adsorbent trap is suitable for monitoring volatile organic compounds in drinking water samples, as well as in wastewater and hazardous waste samples.  This adsorbent trap meets the requirements of US EPA Methods 502 and 524.2.  Relative standard deviation values were less than 15% for all of the compounds listed, and less than 7% for most of the compounds.  Recovery ...


    By MilliporeSigma

  • Sustainable water management with multi-quality recycled water production: the example of San Luis Potosi in Mexico

    This paper presents and discusses the performance, reliability of operation, socio-economic and environmental aspects and benefits of the Tenorio Project in San Luis Potosi. This is the first project in Mexico making possible the production of multi-quality recycled water for planned water reuse for different purposes, including industrial cooling in a power plant, agricultural irrigation, ...


    By IWA Publishing

  • Evaluations of ChemTreat Solutions Automated Feed Systems at Southeast paper mill case study

    A large Southeast Paper Mill was experiencing poor control with their water treatment supplier who was using pace and chemical verification instrumentation. The mill was experiencing major variances in cycle control, conductivity, P-alkalinity, and phosphate control. ChemTreat had investigated the causes of these variances and submitted their recommendations for improvement. As a result, ...

  • Red Rock Correctional Facility, Arizona - Case Study

    In 2013, AdEdge Water Technologies was contacted by Valentine Engineering to participate in a design/build project that was ongoing at the Red Rock Correctional Facility in Eloy, Arizona. CCA is the parent company and is an operator of privately owned and operated prisons throughout the United States. CCA signed an agreement with the State of Arizona to administer up to 1,500 prisoners at the Red ...

  • Tackling Occupational Hygiene

    The collective movement for solving issues surrounding work related ill health continues to gain momentum, highlighted in the HSE Help GB Work Well Scheme calling for ‘greater awareness of the harm, costs and preventability of the issue’ which should ‘drive collective action to improve health ...


    By Casella

  • Maintaining regulatory method compliance while automating oil and grease analysis

    Regulatory compliance is at the heart of environmental analyses throughout the world. While some regulatory systems provide more flexibility in the methodology used for measuring contaminants, the goal is to gain reliable information that can be used for decision-making. Oil and grease measurement is a simple and important measurement of water quality, but time consuming1. Methods such as US EPA ...


    By Horizon Technology, Inc.

  • Use of process analyzers in cement plants solutions from Siemens – Case Study

    Cement is a hydraulic binding agent to produce concrete. Due in part to the fast growth of the Asian economies, world consumption of cement is currently growing at an annual rate of 8%. Therefore, cement production is expanding and, at the same time, production processes need to be optimized to ensure maximum efficiency. In this context, process analytics plays an important role: It determines ...

  • Minergy GFT Phase 3 Final Report

    The presence of PCBs in the lower Fox River in northeastern Wisconsin has been a concern for many years. Extensiveinvestigations of the river bottom have taken place during the 1980s and 1990s. Two areas of the river have undergonedemonstration dredging in the past five years. While planning the appropriate remedial response to be undertaken, the Wisconsin Department of Natural Resources (DNR) ...


    By Minergy Corporation Limited

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