multiparameter water quality Articles

  • Water quality measurement extreme

    Background The characteristics of the Rio Tinto in the south-west of Spain, near Sevilla, are his ruby colour and the extremely sour pH-value between 0 and 2 pH-units. The river carries a mixture between poisonous heavy metals like copper, nickel, arsenic, iron and cadmium, dissolved in high-percent sulphuric acid. It’s not proved where these unusual conditions come from. As per current ...


    By OTT HydroMet

  • Rainy Day Session Instruments

    Rainy Day Session Instruments Rain and melted snow in the United States winter can cause runoff.  Such winter runoff causes the movement of soil or at least cloudy turbid water. This had been known to occur on native undisturbed lands. However, with the growth of the population, we see more and more development ...


    By Geotechnical Services, Inc

  • Multiparameter Sonde Used in Combined-Remedy Approach Saves $200,000 in Potential Costs

    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 1940s. PCE is one of the most frequently detected VOCs (volatile organic carbons) in groundwater at a national scale (Moran 2004). PCE is highly ...


    By In-Situ, Inc.

  • Testing for Nitrates in Water, what are the Options?

    Nitrate is a naturally occurring substance in the environment and is commonly found in most water sources, it is usually only a cause for concern in areas where water supplies can be affected by farm runs offs and agriculture, its use as a fertiliser can cause increased levels in water supplies The ...


    By Camlab Limited

  • Water quality in the Arosa Bay

    Background One of the great impediments to further development of shellfish aquaculture in the north-west region of Spain isa perception that industry expansion and tourism could have negative environmental effects on the coastal waters. Especially the bay around Villagarcia de Arosa is very famous because of its excellent areas for shellfish farming. The government of Spain is ...


    By OTT HydroMet

  • Multiparameter water quality instrument selection guide

    HYDROLAB, Sea-Bird and OTT offer a variety of multiparameter water quality instrumentation and nutrient sensors for long-term applications. Sea-Bird Scientific water quality multiparameter sondes are developed to provide accurate data in environments with salt water and biologically rich environments.Developed for longterm deployments. Learn more about our water quality instruments and which one ...


    By OTT HydroMet

  • 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

  • Aquaread at the Flood Expo 2015

    On the 14th and 15th October 2015 the Aquaread team attended the Flood Expo event at ExCel London, an event designed to “present solutions to widespread flooding problems from the world’s leading flood prevention companies”. As well as this innovative, high quality flood prevention equipment, the event plays host to some great talks and ...


    By Aquaread Limited

  • Water quality in the Mississippi Basin - Case study

    A resilient method for monitoring water quality and nitrate levels in the harsh aquatic environment of the Mississippi River, in section 16, was required by the University of Iowa -IIHR. The monitoring of continually accurate water quality data was important for analysis, in conjunction with the diurnal mussel study of the University of Iowa. Monitoring water over extended periods of time in ...


    By OTT HydroMet

  • Monitoring watershed health

    Background Municipal water quality managers recognize the need for data that can be used to monitor and assess the impact of urbanization on the condition of natural watersheds. Storm events, in conjunction with the alteration of native landscape, building of roads and overuse of fertilizer, can contribute to excess nutrients, sediment and other pollutants in environmentally significant ...


    By OTT HydroMet

  • DESWAT project in Romania

    Background Romania has a wide-area stream network which is of great importance for the drinking water supply of the population. In order to enable timely precautions for the protection of the drinking water supply and the ecosystem in case of limit values being exeeded, an early warning system is projected. In the past few years, Romania had to cope with massive flooding. Therefore the ...


    By OTT HydroMet

  • Water quality is key to the success of Cardiff Bay

    Water quality has been a central theme in a redevelopment project that began with the creation of the Cardiff Bay Development Corporation in April 1987. This article will examine the role that water quality has played in the remarkable transformation that has taken place in Cardiff and explain how monitoring technology has developed to the stage whereby any person, anywhere in the world, can view ...

  • Remote water quality monitoring in South Africa - Case study

    Situated in the Mpumalanga province of South Africa, the Xstrata Coal South Africa (XCSA) runs several open cut and underground mining operations producing thermal coal. To ensure their mining operations do not affect the surrounding natural water bodies, the company employs Hydrolab and OTT water quality monitoring equipment with remote data transmission options: the OTT ecoLog 800 water level ...


    By OTT HydroMet

  • Hydromet Launches new HYDROLAB HL7 Water Quality Sonde

    OTT Hydromet introduces the HYDROLAB HL7 multiparameter sonde for continuous monitoring of 9 key water quality parameters in open natural waters. This new multi-parameter probe maximizes deployment life, minimizes maintenance and provides traceable data you can trust. The HYDROLAB HL7 includes intuitive software for unmatched usability, exceptional power performance and proven sensor options, ...


    By OTT HydroMet

  • 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.

  • High resolution environmental monitoring to support the development of water quality legislation - Case Study

    Aquaread Ltd, an award winning British manufacturer of multi-parameter water quality test equipment, are supplying monitoring equipment and research funding to support the development of improved water quality guidelines across Europe. The research is being conducted in collaboration with scientists at the Aquatic Research Centre at the University of Brighton, and is already influencing ...


    By Aquaread Limited

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