hand-held water quality analysis tool Articles

  • A hydrodynamic water quality model for propagation of pollutants in rivers

    Numerical modelling can be a useful tool to assess a receiving water body's quality state. Indeed, the use of mathematical models in river water quality management has become a common practice to show the cause-effect relationship between emissions and water body quality and to design as well as assess the effectiveness of mitigation measures. In the present study, a hydrodynamic river water ...


    By IWA Publishing

  • The need for specialized statistical software for ground-water analysis

    Peer-reviewed guidance documents for the statistical analysis of ground-water monitoring data have been available for years, from the US EPA and from other bodies such as state Departments of Environmental Quality and ASTM. The truth, however, is that many of the statistical requirements are not being enforced by state regulators, with the result that statistics — where performed at all ...


    By Sanitas Technologies

  • Receiving water quality assessment: comparison between simplified and detailed integrated urban modelling approaches

    Urban water quality management often requires use of numerical models allowing the evaluation of the cause–effect relationship between the input(s) (i.e. rainfall, pollutant concentrations on catchment surface and in sewer system) and the resulting water quality response. The conventional approach to the system (i.e. sewer system, wastewater treatment plant and receiving water body), considering ...


    By IWA Publishing

  • An Inflection Point for Biopharmaceutical Host Cell Protein Analysis

    Has LC-MS Become a Generally Accepted Tool for Complementing Immunoassay-based HCP Analysis? My colleague Catalin Doneanu and I just returned from Lisbon, Portugal, where we attended the BEBPA Conference on Host Cell Protein (HCP) analysis. Along with the other 120 attendees, we participated in open and thoughtful ...


    By Waters Corporation

  • The Chemical Safety Improvement Act: An In-Depth Review and Analysis

    In a stunning bipartisan show of support for reform of the Toxic Substances Control Act (TSCA) that few saw coming, Senators David Vitter (R-LA) and Frank Lautenberg (D-NJ) (among bipartisan others) introduced on May 22, 2013, the Chemical Safety Improvement Act (CSIA), later designated S. 1009, available online. ...


    By Bergeson & Campbell, P.C.

  • Intercalibration of Fish-based Methods to evaluate River Ecological Quality

    These groups started working immediately and have thus only had 6 months to gather and exchange national data, calculate metric scores and boundaries for national methods and common metrics and compare the results and draw conclusions. This report presents the outcome of the work in the groups and with the common data base. For the common approach at the European level using common metrics, ...


  • The Evolution of Markets for Water

    This book is described in the preface as a response to 'the standard of debate on water in Australia and the attempts by some radical green lobby organisations to distort the picture in ways that might lead to some far-reaching adverse economic consequences' (p. xiii). It is the result of a workshop sponsored by the Australian Institute of Public Affairs, a free market-oriented policy think tank, ...


  • The New Economy of Water: The Risks and Benefits of Globalization and Privatization of Fresh Water

    Executive Overview New voices are beginning to be heard in the debate over water, and new ideas – good and bad – considered. Among the most powerful and controversial of these new ideas is that water should be considered an “economic good” – subject to the rules and power of markets, multinational corporations, and international trading regimes. In the last decade, this idea has been put ...


    By Pacific Institute

  • Current Trends in Modelling Water Distribution Systems

    Untitled Document Hydraulic Modelling is emerging from the infrastructure planning offices of our water utilities, where it continues to play a vital role in optimising capital investment projects, to take a ...


    By Innovyze

  • InfoWorks WS: the latest innovations in water supply and distribution modeling

    Introduction and backgroundInfoWorks WS from Wallingford Software is the leading software solution that integrates asset and business planning with water supply and distribution network modeling. The powerful hydraulic simulation within InfoWorks is exceptionally fast, robust and efficient, especially for very large networks. InfoWorks WS engine was introduced in 1998 and a major release every ...


    By Innovyze

  • 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.

  • Eastern municipal water district`s compliance system earns payback in 2 years, projected savings US$1.3 million

    For more than 50 years, the Eastern Municipal Water District (EMWD) has helped support the transformation of a sparsely-populated agricultural area into a thriving Southern California residential community. Managers at California's fifth largest water district work diligently to ensure compliance with state and federal water quality regulations. A key component of its compliance program is ESS ...


    By IHS

  • Software warns of early membrane fouling

    A software system known as MASAR – Membrane Alarm System and Automated Reporter, is proving to be a valuable tool for monitoring and optimizing membrane – based water purification and desalination plants. It can detect the early development of membrane fouling/scaling in RO, NF, UF and MF systems by monitoring performance and measuring an early-warning parameter called the Fouling ...


    By MASAR Technologies, Inc.

  • TDS: `The Done Sale`

    Many Americans have at least some concern that their tap water is problematic, yet they don’t know where to begin. The TDS, or total dissolved solids, meter can be the first step in determining if there’s a problem. The term TDS has long been well-known in the water treatment industry, yet still has not penetrated the mass consumer market. However, by hearing your brief explanation, ...


    By HM Digital, Inc.

  • Locus and Overhoff to Offer Real Time Tritium Monitoring and Compliance Software at Nuclear Facilities

    Locus Technologies (Locus), the industry leader in web-based environmental compliance and information management software, and Overhoff Technology Corporation, the world's leader in the design and manufacture of Tritium monitors and radiation monitoring systems, have partnered to offer a complete Tritium monitoring solution for the nuclear industry using Overhoff's Tritium instrumentation and ...


    By Technical Associates

  • Ten Good Reasons To Build Dynamic Models

    Over the last ten years computer technology and network modelling software have developed beyond all recognition, providing the necessary hardware and software tools to assist water distribution engineers in their design and planning work utilising fully dynamic all-mains models. However, many water supply companies still make important decisions based on static models that represent an arbitrary ...


    By Innovyze

  • ITRC technical regulatory guidelines for passive diffusion sampling, 2004

    Polyethylene diffusion bag (PDB) samplers are low-density polyethylene bags containing deionized water, used to collect water samples in groundwater wells for laboratory analyses of volatile organic compounds (VOCs). PDB samplers are passive devices, relying on the movement of groundwater from the aquifer or water-bearing zone through the screen or open interval of a well. VOCs in groundwater ...


    By EON Products Inc.

  • Composting releases less air pollution than previously thought - study

    A new study funded by the California Integrated Waste Board (CIWMB) indicates that well-managed composting of green waste and food waste releases significantly less air pollution than previously thought. The study also demonstrates that a relatively inexpensive management technique - covering active compost piles with a layer of finished compost - may lower air emissions even further, by as ...


    By BioCycle Magazine

  • ORGANICS DIVERSION - WITH COMPOST MARKETS IN MIND

    Untitled Document California Integrated Waste Management Board collaborates with local agencies, universities and the composting community to increase demand for quality compost. ...


    By BioCycle Magazine

  • Final effluent monitors protect wastewater treatment efficiency

    Southern Water operates 370 wastewater treatment plants (WWTP), many of which are unmanned for most of the time and most have numeric environmental permits, so a network of online monitors has been established to improve treatment and protect discharge compliance. This has involved the installation of final effluent monitors at over 300 sites in a programme that has lasted for more than ten ...


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