online water quality measurement Articles

  • Enhanced membrane bioreactor process without chemical cleaning

    In membrane bioreactors (MBR) for wastewater treatment, the separation of activated sludge and treated water takes place by membrane filtration. Due to the small footprint and superior effluent quality, the number of membrane bioreactors used in wastewater treatment is rapidly increasing. A major challenge in this process is the fouling of the membranes which results in permeability decrease and ...


    By IWA Publishing

  • Chlorine mystery solved

    Following the installation of in-pipe drinking water quality monitoring sondes, distribution engineers discovered an occasional significant disparity between the Intellisondes’ data and results from grab samples tested by a photometer tablet (DPD) method. For most of the time, there was close agreement between the two methods, but periodically, the photometer results varied wildly, whilst ...


    By Intellitect Water Ltd

  • City of Houston Total Organic Carbon - Case Study

    ABSTRACT The City of Houston, Texas has been aware of the implications that current and pending regulatory standards would have on the operation of their four surface water treatment facilities. In particular, the City has closely monitored changes in regulations related to enhanced coagulation, total organic carbon (TOC) removal, and disinfection by-products (DBP) reduction. The ...


    By TOC Systems, Inc.

  • SEIBOLD and its partners acting as one, world wide

    The package counts. The package, the sum of product and services is most important. Our clients expect high measurement quality for life time. In 2010 SEIBOLD launched the partnership program VIRTUAL ONE. The main goal of this initiative is to define the roles and responsibilities of all parties. SEIBOLD's role is to invent, develop and deliver the best ...

  • Project profile - Mettawee Community School - arsenic treatment West Pawlet, Vermont

    Background In the summer of 2004, AdEdge Technologies, Inc. was selected by the Mettawee Community School to supply and install an arsenic treatment system for treating water serving the school and facilities. The elementary school site is located on the west side of the state near the New York border. This was the first system utilizing Granular Ferric Oxide (GFO) adsorption technology ...

  • Monitoring - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • Successful Boot Project nears completion

    Introduction Larnaca Desalination Plant was the first large scale sea water reverse osmosis plant which was built by IDE Technologies Ltd and is solely owned and operated by I.D.E. staff. It is currently in the final year of a 10 year BOOT project (Build, Own, Operate, and Transfer). The plant has a current maximum design capacity of 64,000M³/day. Plant construction started in ...


    By IDE Technologies

  • Eionet priority data flows May 2009-April 2010

    I would like to present the thirteenth progress report on Eionet priority data flows. The purpose of the priority data flows report is to show progress against agreed, stable, well-defined objectives in order to allow countries to identify and confirm the resources they need for regular reporting procedures. The progress report aims to encourage countries towards better performance through ...

  • 24 hours per day real-time groundwater data during dewatering and stress handling - Case Study

    Project Widening of motorway A9 Gaasperdammerweg – Amsterdam Client Van Kessel Bronbemaling Principals ...


    By Eijkelkamp Soil & Water

  • The future of leak detection starts today

    For many water engineers the day in the office begins with a look at the screen. They can analyse the results of the nightly measurements of their fresh water pipelines in a few minutes and make important decisions for the day. Are there any new leaks in the system? Using the information found, the water engineer can send his workers to precisely those points that the leak detection system has ...


    By Gutermann AG

  • DNI satellite data truth? - How to handle the difference in values derived from different satellite data providers?

    Technical Top Tip courtesy of Solar Resource Assessment - When it comes to CSP project evaluation, one of the biggest uncertainty factors for the performance is the available Direct Normal Irradiance (DNI) at the site. 1. DNI vs. GHI DNI distinguishes significantly from GHI (Global Horizontal Irradiance), which is more applicable for Photovoltaic ...


    By FCBI Energy Ltd.

  • Great Lakes need great Data Buoys

    One recently finished project was performed by the University of Wisconsin and has comprised the depolyment of two data buoys which are both furnished with a multifunctional Lufft WS501-UMB. These weather ...

  • Case study - N°AA4 – Ambiant air monitoring – WWP TRS MEDOR Stripping

    Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® ...


    By Chromatotec Group

  • Cost reduction of solvent recovery in pharmaceutical plants – Case Study

    Use of Solvents The pharmaceutical industry relies on the use of large quantities of organic solvents in a great number of manufacturing steps including chemical synthesis, fermentation, extraction, formulation and finishing of products. Solvents such as acetone, methyl ethyl ketone and tetrahydrofuran are commonly used as reaction media and for extracting products in the pharmaceutical, ...

  • Reverse Osmosis for WFI and PW

    The United States Pharmacopeial Convention Inc. (USP) has proposed new specifications for Water for Injection (WFI) and Purified Water (PW). These specifications will include quantitative conductivity, and total organic carbon (TOC) measurements will replace 100-year-old qualitative wet chemistry tests. The impetus behind these changes is to create a means of analysis that is less ...

  • Myths and Truths About Multi-Input Analyzers

    Key Words multi-input analyzer, water quality, instrumentation, water, waste water, process industry, efficiencies, digital controllers Today's process world is a challenging one. Plant managers, metrology labs, and maintenance workers are constantly asked to improve their process efficiencies and output while at the same time seeing their budgets, manpower, and workforce ...


    By IC Controls Ltd.

  • Triad use at Naval Base San Diego saves an estimated 6 years and US$3m for site investigation

    The U.S. Naval Facilities Engineering Command Southwest (NAVFAC SW) used the Triad approach to collect an integrated hydrogeologic and chemical dataset for expediting and optimizing characterization of a volatile organic compound (VOC) plume at Naval Base San Diego (NBSD), CA. The 295-acre 'IR Site 22' was identified in 2003 when VOC concentrations reaching 100 mg/L were reported in an upgradient ...

  • Critical pieces in a big puzzle

    Dynea is one of the world’s leading producers of adhesives for industrial use, particularly for the wood and paper industry, but also for rock wool and glass fibre products. The company has been an important ...


    By NEO Monitors AS

  • Four Tips to Use Pressure Washers for Auto Detailing

    Pressure washers are known for their capability to carry out difficult cleaning tasks on hard surfaces. These machines are used for outdoor cleaning jobs, such as cleaning parks, pavement, stadiums, and more, as well as industrial cleaning, such as heavy-duty industrial degreasing. However, pressure washing machines are flexible. For example, they can be used for auto detailing, too. ...


    By Daimer Industries Inc.

  • Case study N°AA1 – Ambiant air monitoring – WWP TRS MEDOR H2S filter

    Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® ...


    By Chromatotec Group

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