Water Monitoring Articles

  • Thoroughly modern installers keep on industry trend

    The ErP Directive, through its various iterations since 2009, not only places high demands on the efficiency levels of a wide range of heating products, and especially hot water storage in our homes, but also on installers to communicate the benefits of greater energy efficiency to their customers. If the target to reduce energy use by 20% by 2020 is remotely realistic, not only has product ...


    By Kingspan Environmental Ltd

  • Sludge Blanket Level Detection – making new process opportunities possible

    Much Pulsar's Self-Cleaning Viper Sludge Sensor of the demonstrating the effective maintenance-free solution. discussion around the way we deal with sewage sludge – the way it is moved around the process, the bellmouth valves and decant processes, the downstream treatment of the liquors, important issues around TOTEX and discharge Compliance, plus more recently the ...

  • Salinity and miniDOT

    The miniDOT and other optical dissolved oxygen sensors measure oxygen within a special plastic material that has the property of changing its fluorescence in response to the amount of oxygen present. Oxygen arrives within this material by diffusion from the surrounding environment, which is usually water.  The miniDOT determines oxygen concentration in water dissolved oxygen  by ...

  • Case study - Remote water quality monitoring in South Africa

    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 ...

  • Per-and Polyfluoroalkyl Substances (PFAS) – An Emerging Challenge

    Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a large group of chemicals that were used for decades in numerous industrial applications (e.g., fire-fighting and metal plating foams, aviation hydraulic fluid) and consumer goods (e.g., stain repellent for clothes, furniture and carpets, and non-stick coatings). Perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), both ...


    By SIREM

  • Case study - Discharge measurement deep within a cave

    Research is currently being conducted in the Hessenhau cave, located in southern Germany. The cave is the deepest known within the Swabian Alps at 144m (472 ft) and has a stream running through it that connects it to other caves within the area. Discharge measurements were taken in different parts of the cave with the OTT MF pro electromagnetic current meter. Reaching the bottom of the cave ...

  • Case study - Remote location requires minimum concept

    A leading power supply provider in Austria took on the project of monitoring water levels at a power plant in Montenegro, in two remote locations where no infrastructure is available for installation. On top of that, site visits could only occur every two months, so a device with remote data transmission capabilities was key. Because of these factors, the customer needed an easy solution for ...

  • Case study - Continuous discharge monitoring in Mecklenburg - Germany

    The Wallensteingraben was originally constructed as a channel and is almost 20 km long. In the context of implementing the European Water Framework Directive, goals include improving ecological passability. At the same time a measurement site for the continuous monitoring of discharge quantities was installed.  Products used include OTT SLD, OTT CBS and OTT LogoSens. Monitoring ...

  • Case study - Dam monitoring in South Africa

    The purpose of the Komati River Basin Development Project is to ensure the availability of water in order to promote economic development in the region. OTT’s part of the project was to supply dataloggers for the monitoring of the river flows into and out of the Maguga and the Driekoppies dams. The technical needs were high-level: Technology designed specifically for environmental ...

  • Case study - Precipitation measurement in East Tyrolia high mountains

    The Defereggen Valley's remote location is in the middle of the East Tyrolean high mountain valleys in the Alps. Due to the remote location, extreme weather conditions, and lack of infrastructure, it had not been possible to install an official precipitation measurement station in the Defereggen Valley, yet. It was a "white spot" on the map, from a meteorological point of view. Today, ...

  • Case study - Harris county flood warning system

    The Harris County Flood Control District in Texas was created in 1937 as a response to the devastating floods that struck the region between 1929 and 1935. The District's boundaries protect 3.7 million people and include the city of Houston. Twenty-two different watersheds are included in the district's boundaries, each with a unique set of monitoring challenges. The District is using the "Flood ...

  • Case study - Reservoir Aabach Germany - Continuous monitoring of contact pressure

    With a total volume of approximately 20 million cubic meters of water and a length of 450 meters, the reservoir supplies drinking water for 200.000 people in the area and fulfils also an important  function in the flood protection there. With the new monitoring solution it was possible to reduce the workload and cost for collecting, reading out and transmitting of data significantly. An ...

  • Case study - Ireland Groundwater Monitoring Program

    To fulfill the EU Water Framework Directive (WFD) requirements, a groundwater monitoring program was established by the Environmental Protection Agency of Ireland. This program focuses on providing information to assess the environmental status of surface and groundwater bodies. Read about the program and the example installation in the Bog of the Ring. Technology Used: OTT Orpheus Mini, OTT ...

  • Case study - Discharge measurement at the river

    Due to the seasonally strong weed growth and low flow during low water periods the measurement of water level and flow at the measurement site "Kleinraschuetz“ was rather distorted. It had to be corrected by putting in additional manpower for manual measurements. Therefore it was decided to modernize the station completely and to install a stationary discharge measuring system. The ...

  • 5 ways to conserve water this winter

    Water conservation is something we harp on during the summertime, but what about during the winter? When the irrigation systems shut down, it’s easy to put conservation on the back burner while indoor water waste continues to occur. According to the U.S. Geological Survey, the average person uses 80-100 gallons per day for everything from cooking, to showering and flushing the ...


    By WaterSignal

  • Santa Cruz Meets THM/DBP Challenge with Unique Air Stripping Process - Case Study

    Summary Santa Cruz has successfully demonstrated an innovative way for the City to meet its water quality goals while using process recycled water as part of its supply source. Using the recycled water had caused concern about reliably meeting the U.S. EPA THM/DBP potable water quality standards in its finished water. The City evaluated various aeration treatment processes and chose an E-Z ...


    By QED Environmental Systems

  • Flow Rate Measurement in Full Pipes Using the Transit Time Method

    Particularly in large diameters the relevance of water volume measurement is growing. The challenge with cooling water or fresh water processes is to generate accurate flow recordings or to document and to control individual consumptions and withdrawal quantities. Flow detection, however, particularly in large diameters is highly demanding. In such cases the transit time measurement thanks to its ...


    By NIVUS GmbH

  • Treatment of Cyanide Bearing Wastewaters

    Water Innovations utilizes a 2-stage Cyanide Oxidation (CN) system that can treat from 2 GPM to 10 GPM. In the first stage of treatment, hypochlorite oxidizes cyanide to cyanate. It consists of two double-wall “Batch” Cyanide Oxidation Tank and an accumulation tank for cyanide-bearing rinse water, each tank equipped with one mixer. Wastewater containing cyanide will be pumped or flow ...


    By Water Innovations, Inc

  • Online waste water monitoring system on golfcourse - Case Study

    Validation of BACTcontrol as an online waste water Monitoring System and Microbiological Early Warning System. The presence of dangerous micro organisms in water used in food processing or surface water can be a real threat for human health. The constant monitoring and control of the presence of such dangerous pathogens is therefore of big importance. In a ...


    By microLAN B.V.

  • DAF Retrofitting with GEM LSGM Technology - Case Study

    Introduction Clean Water Technology, Inc. (CWT) is the creator of the Gas Energy Mixing (GEM) System - the most advanced primary treatment system on the market. As an alternative to replacing existing Dissolved Air Flotation (DAF), CWT introduces “DAF RETROFITS” utilizing innovative GEM Technology to provide superior reduction of total suspended solids (TSS), biological and ...


    By Clean Water Technology, Inc.

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