discrete flow analyzer Articles

  • Discrete or Continuous Flow Analysis – which is better?

    A wide variety of factors affect the choice of analytical instrument. These include target workload (samples/hour), variety of chemistries, methods required, bench space, staff availability etc. In the following article Lalicia Potter, Technical Sales & Support Director at SEAL Analytical, examines one of the common decisions facing laboratory managers. As the manufacturer of an ...

  • 5th-Generation Thermox WDG Flue Gas Combustion Analyzer

    "For more than 40 years, we have been a leader in combustion gas analysis," says Mike Fuller, divison VP of sales and marketing and business development for Ametek Process Instruments, "and we believe the WDG-V is the combustion analyzer of the future." WDG analyzers are based on a zirconium oxide cell that provides a reliable and cost-effective solution for measuring excess oxygen in flue gas as ...

  • Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures

    Untitled Document Background The Regional Superfund Ground Water Forum is a group of ground-water ...


    By Solinst Canada Ltd.

  • Wavelet-based trend analysis of hydrological processes at different timescales

    This study analyzes involved trends in stream flow and precipitation data at monthly, seasonal and annual timescales observed at six precipitation and four stream flow stations of Tampa Bay using non-parametric Mann–Kendall (MK) and discrete wavelet transform (DWT) methods. The MK test and sequential MK analysis were applied to different combinations of DWT after removing the effect of ...


    By IWA Publishing

  • Leakage fault detection in district metered areas of water distribution systems

    Fault tolerance and security in drinking water distribution operations are important issues that have received increased attention in the last few years. In this work the problem of leakage detection is formulated within a systems engineering framework, and a solution methodology to detect leakages in a class of distribution systems is proposed. Specifically, the case where water utilities use ...


    By IWA Publishing

  • Optimal groundwater management using state-space surrogate models: a case study for an arid coastal region

    A surrogate modeling framework is developed in this study to circumvent the computational burden of high-fidelity numerical groundwater models for arid coastal aquifers. Two different surrogate models, namely, artificial neural network (ANN) and Gaussian process model (GPM) are trained to replace the computationally expensive numerical flow and transport model OpenGeoSys. A novel time-dependent ...


    By IWA Publishing

  • Advanced Water Quality Techniques Course

    Abstract:The development of a strategic water quality monitoring program is based on prioritizing risks to public safety and economic reality. The development of global standardized methods and protocols for automated water quality monitoring would facilitate international communication of water quality information and comparison of standardized methods and protocols. The three primary methods ...


  • NovaGerar landfill gas to energy project

    Overview The objective of the NovaGerar Landfill Gas to Energy Project in Nova Iguaçu - Rio de Janeiro, Brazil is to explore the landfill gas (LFG) collection and utilization activities of the landfills managed by S.A. Paulista. This involves investing in a gas collection system, leachate drainage system and a modular electricity generation plant at each landfill site (with expected ...


    By LANDTEC

  • Continuous Modeling of Wet Weather Strategies Annual Water Quality Results Support a Municipality’s Decision-Making Process

    ABSTRACTAn extensive water quality modeling effort for the City of Columbus Long Term Control Plan (LTCP) was performed in order to evaluate future scenarios to abate combined sewer overflows. This modeling effort was supported by a massive data collection program and employed three different models to analyze the receiving streams. Once the models were selected and calibrated, continuous annual ...

  • EPA - 40 CFR Part 51, Appendix M - Test Method 205

    DEPARTMENT OF ENVIRONMENTAL PROTECTION (DEP)   40 CFR PART 51   ...


    By Environics, Inc.

  • Renewable Energy Projects on Contaminated Property: Managing The Risks

    Managing brownfields risks requires complex technical and legal analysis. Analyzing risks in renewable energy projects is equally complex. Both projects involve several contracts that must be integrated and made consistent with each other. Combining these types of projects creates a unique combination of risks, including, for sites where institutional/engineering controls are part of the remedy, ...

  • Required maintenance

    Many consider the ’60s through today as an era of analytical and technological revolution. In the ’50s, labs were running manual chemistries, using handwritten QC charts and keeping data in log books and file cabinets. Lab technicians were creating calibration curves by hand. No auto-sampling, no computer control, no electronic interpolation of data. Technicon offered a few automated chemistries ...


  • Geothermal Energy... Power from the Depths

    The Earth's crust is a bountiful source of energy—and fossil fuels are only part of the story. Heat or thermal energy is by far the more abundant resource. To put it in perspective, the thermal energy in the uppermost six miles of the Earth's crust amounts to 50,000 times the energy of all oil and gas resources in the world! The word 'geothermal' literally means 'Earth' plus 'heat.' ...

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