pH probe Articles

  • pH Electrode Architecture

    A pH Electrode can be compared to a battery in that an electrical voltage is generated between two points that is a function of water chemistry. In the case of a pH electrode the voltage potential is a function of the acidity or alkalinity of the solution in which it is immersed. Note: The terms pH electrodes and pH probes are often used synonymously, despite the fact that there are differences. ...


    By Digital Analysis Corp.

  • 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.

  • Komax teflon lined mixer simplifies acid injection for power plant

    A major source of waste water in many power plants is the waste stream that results from ion exchange used for demineralizing the boiler feed water. The alkaline regeneration waste stream produced by the ion exchange process requires the addition of an acid to this stream before discharge from the plant. Regulatory authorities typically require the effluent to have a near neutral pH before ...


    By Komax Systems, Inc.

  • New Guide from METTLER TOLEDO on Increasing pH Sensor Lifetime

    Proper care of pH sensors can dramatically increase their lifetime. A new guide from METTLER TOLEDO explains, step-by-step, how Intelligent Sensor Management (ISM®) technology provides maximum lifetime for pH probes. Urdorf, Switzerland – Over time and through use, pH sensors are affected by their measuring environment and require cleaning, calibrations and adjustments to ensure ...


    By Mettler - Toledo Int. Inc

  • pH of Pure and Ultrapure Water

    Measuring pH properly in pure and ultrapure water is difficult. pH is critical for process control and for preventing corrosion for example. pH of Ultrapure Water pH of Ultrapure water is 7.00. The only ions present are H+ and OH-, and since these must be in balance, the pH is 7. Don’t try to measure the pH of ...


    By SnowPure Water Technologies

  • Continuous emission monitoring and control of packed tower odor control systems using the sycamore CEM

    ABSTRACT Packed-tower chemical scrubbers, with sodium hydroxide (caustic) and sodium hypochlorite (bleach), are commonly used to treat foul air from wastewater treatment processes. The available control mechanisms include a pH probe and controller for the sodium hydroxide feed, an oxidation reduction potential (ORP) probe with a controller toestablish the bleach feed, and proprietary ...

  • Getting back to basics: What is pH?

    Getting back to basics: What is pH? The most used measure in wastewater treatment, and for good reasons The “potential of hydrogen” or “pH” is the measure of free hydrogen activity in water and thereby indicative of the measure of its free acidity or free alkalinity. Gauged on a numeric scale of 0-14, solutions with a pH of less than 7.0 are acids. ...

  • BCP™ 1015 - In an Air Scrubber System and condenser water loop bio-organic deposit clean-up and control - Case Study

    Problem 1 – Fouled Air Scrubber System Image 1: Before BCP™ 1015 treatment: foam & biomass material collected at the screen An air scrubber system located in a high ammonia environment with a low pH (2.8) water and conductivity ofLess than 1000 was exhibiting significant biomass build-up. When screens were pulled for cleaning, the mesh ...


    By AMSA, Inc.

  • Treatment of kraft evaporator condensate using a thermophilic submerged anaerobic membrane bioreactor

    The feasibility of using a thermophilic submerged anaerobic membrane bioreactor (SAnMBR) for kraft evaporator condensate treatment was studied at 55±1°C over 6.5 months. Under tested organic loading rate of 1–7 kg COD/m3 day, a soluble COD removal efficiency of 85–97% was obtained. The methane production rate was 0.35±0.1 L methane/g COD and the produced biogas was of excellent fuel quality with ...


    By IWA Publishing

  • pH Adjustment - A Primer

    A brief review of the definition of pH, the pH scale, and some of the chemistry involved in pH Adjustment systems is provided below. For some this may be trivial, yet for many others this may be useful. The information provided below is typical of the background information we provide in our training classes / seminars. By Definition pH is the measure of free hydrogen activity in water and can be ...


    By Digital Analysis Corp.

  • Impact parameters investigation of DNA immobilisation process on DNA sensor response

    This paper studies impact parameters of DNA sequence immobilisation on DNA sensor response. The parameters were examined including immobilisation time, carbon nanotubes concentration, DNA probe concentration and pH value. The DNA probe sequences were immobilised on surface of microelectrodes by using multi–walled carbon nanotubes (MWCNTs) as mediator. The hybridisation between DNA probe and DNA ...


    By Inderscience Publishers

  • Reliable silica monitoring supports power station efficiency

    West Burton B CCGT is a Combined Cycle Gas Turbine power station near Nottingham in the UK. It has three open-cycle gas turbines capable of generating enough electricity for approximately 1.5 million UK homes. In common with all combustion based power stations, the CCGT has a requirement to monitor silica levels in the Plant’s water and steam processes. Sean Todd, the Plant’s Control ...

  • Profile of Ozone/Bromine Sanitation Systems for City of Tucson Municipal Pools

    Due to the inherent risks associated with the use of chlorine gas as a sanitizer for the City of Tucson’s twenty-six municipal swimming pool sites, I found myself in search of an alternative water sanitation method. The challenge was clear; find a system that would be safer to manage than gas chlorine, yet yield the same favorable sanitation and water quality results. Since all the sites ...


    By ClearWater Tech LLC

  • 3 Important Factors for Choosing a pH Data Logger

    Common Issues and Recommended Solutions with a pH Data Logger pH Measurement is very common in industrial processes, plating, wastewater treatment and environmental monitoring. Using a pH data logger to record pH provides information on long-term trends and the impact of ...

  • New ISFET pH meter PCE-ISFET

    The new PCE-ISFET pH meter from PCE Instruments has been designed for food applications. The glass free electrode makes it particularly safe to use in food production as no glass splinters can get into the food if the electrode breaks. Unlike glass pH electrodes, ISFET pH sensors are highly resilient and do not require wet storage. They give reliable results under tough conditions. The ...


    By PCE Instruments

  • Monitoring pH and ORP in a SHARON reactor

    This paper analyses the valuable information provided by the on-line measurements of pH and oxidation reduction potential (ORP) in a continuous single high ammonia removal over nitrite (SHARON) reactor. A laboratory-scale SHARON reactor equipped with pH, ORP, electric conductivity and dissolved oxygen (DO) probes has been operated for more than one year. Nitrogen removal over nitrite has been ...


    By IWA Publishing

  • Oil Skimming: Why it matters

    During many industrial and manufacturing processes, water is combined with chemicals, oils, grease, fat and other containments. Oil skimming is the process of removing this floating oil from water. It is the first step in any recovery, recycle or reuse project, and has numerous benefits for businesses.


    By Oil Skimmers, Inc.

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