ph instrument Articles

  • Two Detector Solution to Analyzing Sulfur

    Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...


    By Restek Corporation

  • Cycle chemistry pH measurement

    pH measurement in high purity water has met with variable success. The high resistivity of pure water, the vulnerability to contamination, the variability of reference electrodes and additional temperature effects converge to make tins a particularly challenging measurement. Overcoming these obstacles requires a thorough understanding of the potential problems and their systematic solution. ...


    By SnowPure Water Technologies

  • pH Probe Maintenance

    The success or failure of pH measurement depends on the proper application of the probe and proper subsequent maintenance of the probe. The procedures described within apply to the most common pH probe in use today and that is the flat surface combination pH probe. The most common failure mode associated with pH probes is breakage. The pH electrode is a very thin glass membrane that is easily ...


    By Digital Analysis Corp.

  • Instrumentation and Operational Considerations for On-Line pH Measurement in Samples Below 10µS/cm Conductivity

    Ordinarily pH measurements are made in water with 1,000 to 10,000 µS/cm conductivity. The conductivity comes from dissolved solids which are typically salts but also acid or base. These dissolved substances are in the solution in ion form which makes such solutions conducting. With conductivities of 1,000 µS/ cm or more, an ample supply of mobile ions provides pH electrodes with a ...


    By IC Controls Ltd.

  • 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

  • The soldier salesman: field instrumentation

    “The victorious strategist only seeks battle after the victory has been won, whereas he who is destined for defeat first fights and afterwards looks for victory.” — Sun Tzu, The Art of War These words may apply to warfare, and though they were written over two thousand years ago by a Chinese general, they could not be more accurate than when applied to today’s sales ...


    By HM Digital, Inc.

  • Is pH a red herring when it comes to ocean acidification?

    New research points to saturation state, not pH, as the most pressing metric to track when it comes to shellfish survival. In 2007, the owners of Whiskey Creek oyster hatchery on the Oregon coast lost almost all of their larvae — and had no idea why. The only clue was that the larval die-offs often occurred during intense upwelling events, when ...


    By Ensia

  • Tech update: Plant instrumentation - food engineering

    Sensors and other devices are the foot soldiers in automation architecture, but most food and beverage manufacturers still are looking for full value. You know an equipment category has arrived when it starts getting its own industry-specific center. For the food production sensors that do the heavy lifting in instrumentation technology, that day could arrive earlier rather than ...


    By Hardy Process Solutions

  • ORP and pH Based Control of SBR Cycles for Nutrient Removal from Wastewater

    ABSTRACTContinuous monitoring of multiple process functions were conducted involving removals of BOD, TSS and nutrients, in each cycle of the SBR reactor at the wastewater treatment plant of the City of Carrabelle, FL. On line, real time, monitoring of pH, oxidation reduction potential (ORP), dissolved oxygen (DO), ammonia-N, nitrite-N, nitrate-N and orthophosphate-P demonstrated excellent ...

  • National instruments features Watertectonics` Waveionics user interface and control system

    Using National Instruments products like LabVIEW and Compact FieldPoint Controllers, WATERTECTONICS has developed a user interface for the WaveIonics electrocoagulation system that is flexible, automated, and robust. With the tight integration between NI hardward and software, WATERTECTONICS was able to test coding extensively on a PC before deploying it to a system. Plus, it was easy to adapt ...


    By Water Tectonics, Inc.

  • Dairy Crest – Dairy Effluent Treatment Case Study and Partech Water Instruments

    In order to comply with environmental regulations, the food and beverage industry relies heavily on constant monitoring and control of wastewater and effluent, before discharge from the plant. Additionally, if process plants fail to be vigilant when it comes to monitoring all areas of waste treatment, the results can be unsuccessful. Partech’s water instruments are ...


    By Partech (Electronics) Ltd.

  • Online Instrumentation to Protect Wastewater Facilities from Toxic Chemicals

    ABSTRACTSecurity concerns are driving current research to develop means of detecting toxic chemicals in wastewater influents as few online instruments are currently available for this purpose. Online respirometers such as the STIPTox are the obvious choice using existing, established technology. One of these units was recently used successfully in the WERF project 03-CTS-7S “Feasibility Testing ...

  • 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.

  • Why is Calibration of Water Quality Testing Equipment so Important?

    The calibration of water quality testing equipment is as important as the tuning of a musical instrument. When people find out I’m a chemist, the first thing they ask me is, “Are you Walter White?” (This shows you the kind of people I typically run into). The second thing they ask me is, “Why is calibration so important?” Simply stated, calibration is how we adjust ...


    By In-Situ, Inc.

  • Oxidation and coagulation of humic substances by potassium ferrate

    Ferrate (FeO42−) is believed to have a dual role in water treatment, both as oxidant and coagulant. Few studies have considered the coagulation effect in detail, mainly because of the difficulty of separating the oxidation and coagulation effects. This paper summarises some preliminary results from laboratory-based experiments that are investigating the coagulation reaction dynamically via a PDA ...


    By IWA Publishing

  • Surface Ocean Acidification studies using Ships Of Opportunity

    Ships of Opportunity Ships of opportunity (SOOP) are used as a platform for cost-efficient collection of environmental data, Ferrybox. The SOOP network operated by NIVA cover the majority of the Norwegian coastline (from Germany (54N ) in the South to Svalbard (78N) in the North. This network is used in the national OA monitoring program. Globally, SOOPs are used for pCO2 measurements and ...


    By Franatech GmbH

  • `Good to Go™ tags´ manage your daily or weekly calibration and safety checks

    Keeping up with safety regulations can be complicated and time-consuming. Having an easy to complete, simple visual guide to carry out safety or calibration checks solves this problem and helps to keep the workplace safe. One glance and you can see the equipment is “Good to ...


    By Camlab Limited

  • Real-time modeling of trihalomethane formation in a full-scale distribution system

    Using a combination of modeling and online water quality instrumentation, utilities can produce real-time predictions of trihalomethane (THM) formation in their distribution system. In this study, an empirical model was used to predict THM formation and embedded into a full-scale supervisory control and data acquisition (SCADA) system. Online water quality instrumentation provided input values ...


    By IWA Publishing

  • Modular treatment system neutralizes process water

    A self-contained pH control and monitoring sys- tem for ready mixed operations yields clean water for recycling or permitted discharge to the environment. Fortrans' Model 5000S uses car- bon dioxide gas to neutralize high-pH process water, offering precise alkalinity monitoring and control of water in pits, settling basins and other containment areas, as it lowers total suspended solids. Designed ...


    By Fortrans, Inc.

  • Water Monitoring in drinking water plants - The Comparison Between On-Line TOC Analysis and the Permanganate Oxidation Method

    Introduction The role ofthe plants providing water is not restricted to the collection of water from areas where abundantly available and then distribution to the consumer. In reality, it involves a serious commitment to the guarantee of waterwhich is high quality. For this reason, drinking water facilities make use of conditioning plants which are equipped with chemical lab ...


    By Envitech Ltd.

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