water sensor Articles

  • 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 ...

  • Monitoring Gas Emissions from Volcanoes to Predict Volcanic Activity

    To understand and predict the behaviour of volcanoes an increasing number of scientists are combining geological monitoring and geochemical models. By measuring and monitoring the prevalence of gases like CO2, scientists hope to be able to better predict the likelihood of volcanic eruptions. In 2010 Iceland’s Eyjafjallajökull volcano erupted, releasing 250 million ...


    By Edinburgh Instruments Ltd

  • The benefits of monitoring compressed air

    Compressed air is used in many manufacturing processes for many different reasons, from the actuation and control of pneumatic valves and cylinders to the operation of process machinery and tooling. It can also be used as a transport medium for bulk materials or as a purge gas. For all its uses it is nonetheless expensive. This is why, through detailed monitoring, a business can enjoy the ...


    By Contrec Europe Limited

  • Using Electromagnetic induction to characterize soils - Case Study

    Electrical conductivity measurements have been used for years to determine salinity and moisture in soils. Probes were inserted directly into the soil to determine how well the soil conducted an applied current. This process was slow and labor-intensive and was usually reserved for scientific studies. A more recent technique for measuring conductivity is electromagnetic induction (EM), a ...


    By Geonics Limited

  • How a Specialized Automatic Control Valve Solved Flooding

    The Colombian area of Antioquia creates much of its clean power from hydropower plants along the Guadalupe River. The Guadalupe IV hydroelectric plant generates power with three vertical axis turbines that discharge water below the river level. To prevent flooding, however, the plant needed a solution that ensured the ejector ...


    By Singer Valve Inc.

  • Sensor Setpoint Validation of Reclaimed Water UV Reactors

    ABSTRACTReclaimed water ultraviolet light (UV) disinfection system can be a critical component of a multiple barrier approach for public health protection. Current control methodologies rely upon assumed end of lamp life factors and sleeve fouling factors, which often result in overdosing when the lamps are new and the sleeves are clean and underdosing as the lamps ...

  • PetroSense hydrocarbon sensors and their applications

    The increasing concern about hydrocarbon contamination of process water and produced water has created an increasing need for in-situ, real time, and accurate low cost instrumentation that can provide rapid detection and easily usable in the field. PetroSense sensors [1,2] represents “best in breed” technology for the detection of total petroleum hydrocarbons (TPH). PetroSense sensors ...


    By PetroSense, Inc

  • ANDalyze DNA sensor Technology

    Video describing the use of DNA as a sensor for detecting heavy metal ions in ...


    By ANDalyze

  • Barriers to Sensor Innovation

    There have always been plenty of innovative ideas about sensors. But, despite manufacturers wanting to develop them, very few come to fruition. Michael Scott of Optocem.net and Stephen Russell of WRc examine the problems Overwhelming anecdotal evidence suggests that there are considerable barriers to the successful commercial exploitation of sensor innovation in the water and wastewater ...


    By WRc plc

  • Environmental Sensors in Waste Management

    Issue: As part of an increasing sentiment among European consumers that environmental protection is important, concern about the impact of landfill is growing. Sensor technology makes it possible to measure and control inputs to landfill sites and pollutants arising from them. However, the exploitation - or uptake - of such technology has been lower than expected in the waste management sector. ...


  • PetroSense Hydrocarbon Sensors and Their Applications

    The increasing concern about hydrocarbon contamination of process water andproduced water has created an increasing need for in-situ, real time, and accurate low costinstrumentation that can provide rapid detection and easily usable in the field. PetroSense sensors [1,2] represents “best in breed” technology for the detectionof total petroleum hydrocarbons (TPH). PetroSense sensors ...


    By PetroSense, Inc

  • Measuring the Soil Water Retention Curve with the Stevens pF Matric Potential Sensor and Hydra Probe II Soil Moisture Sensor

    The Stevens pF Sensor is a unique matric potential probe, which is used to measure the soil water potential of a soil - the force with which water is held within the soil and how much energy is needed to overcome this force to extract water from the soil. Unlike traditional tensiometers such as gypsum blocks, the Stevens pF Sensor utilizes a patented heating element to measure soil water ...

  • Partech Water Instruments Case Study: China’s Success with Partech’s Clever Sensors!

    Ronghuai Water Group uses Partech water instruments in 20 of their water plants across China! Currently, the Watertechw2 pH8000 and TurbiTechw2 LA sensors are used in the plants. The ...


    By Partech (Electronics) Ltd.

  • Calibration and characterization of an improved low-cost water content sensor

    Inexpensive, accurate, and reliable soil moisture measurements are necessary in countless applications from research to hydroponics. Many have dreamed of these types of sensors being so inexpensive that they could be spread over a wide area to monitor water status at numerous locationsin a watershed, greenhouse, or golf course to name a few. However, measurements of this sort are only as valuable ...


    By Decagon Devices, Inc.

  • Dynamic soft sensors for detecting factors affecting turbidity in drinking water

    Effective monitoring of water quality is critical for water safety. In particular, online monitoring based on modeling is useful in several applications such as process assessment, hazardous event detection or common fault diagnostics in the water processes. Soft sensors have lately established themselves as a good alternative for different tasks of process control such as the acquisition of ...


    By IWA Publishing

  • Optimal sensor placement for event detection and source identification in water distribution networks

    This study focuses on the optimization of sensor placement with respect to the source identification and event detection. A multi-objective algorithm is used to solve the optimization problem. The numbers of possible source nodes for contamination events associated with the solutions on the Pareto fronts from the proposed method and benchmark method are calculated under the same configuration ...


    By IWA Publishing

  • Sensor placement for leak detection and location in water distribution networks

    The performance of a leak detection and location algorithm depends on the set of measurements that are available in the network. This work presents an optimization strategy that maximizes the leak diagnosability performance of the network. The goal is to characterize and determine a sensor configuration that guarantees a maximum degree of diagnosability while the sensor configuration cost ...


    By IWA Publishing

  • Diminishing marginal returns for sensor networks in a water distribution system

    With increasing interest in the implementation/functionality of a contaminant warning system for water distribution systems, questions exist over the application to a real distribution system. A methodology is described to assess the impacts of changes in the numbers of sensors, on the time delay required to detect a contaminant intrusion event and to maximize sensor detection redundancy as ...


    By IWA Publishing

  • Measurement of hydrocarbons in produced water using fiber optic sensor technology

    Due to the non-availability of Freon, there is need for an alternative method to measure the concentration of hydrocarbons in the effluent from oil water separators in use in the oil industry today. Current methods use solvent extraction and IR analysis of water samples. In this paper we present an alternative method, which does not use any solvents and can provide in-situ analysis of the ...


    By PetroSense, Inc

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