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ph testing Applications

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    pH determination for water testing

    By WTW - a xylem brand based in Weilheim, GERMANY.

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    Laboratory Analytical - pH-Measurement Application

    The right System for the right Application. By choosing the right electrode, instrument and accessories customers can build a dedicated system for their application. A system capable of giving accurate and repeatable results time after time.

    By Mettler - Toledo Int. Inc based in Greifensee, SWITZERLAND.

  • pH monitoring for laboratories

    By Bibby Scientific Limited based in Stone, UNITED KINGDOM.

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    ph determination for soil testing

    Determination of the pH value provides information about the acid or base action of the soil solution. This in turn is enormously important for the nutrient supply and microbial activity of the soil. For example, many metals (trace elements) are considerably more mobile in acidic soils. If the soil pH values are very low, toxic levels can soon be reached and these can damage the roots of plants. On the other hand, excessively high pH values quickly lead to a shortage of trace elements because of immobilization.

    By Metrohm AG based in Herisau, SWITZERLAND.

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    Oceanographic Monitoring

    For survey operations up to 6000m depth (and deeper by special request), Valeport offer instruments to measure and record the classic physical parameters of Temperature, Depth, Salinity, Density, Currents and Waves. Along with the most accurate Sound Velocity sensors in the world; the ability to interface other parameters / sensors such as pH, Dissolved Oxygen Turbidity, Flourometer, Transmissometer and PAR; Housings and deployment frames to suit in-line moorings, profiling and seabed deployments, Valeport can cater for all your oceanographic survey requirements.

    By Valeport Ltd based in Totnes, UNITED KINGDOM.

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    Water Testing for Horticulture

    Modern growing practices include scientific evaluations of soil, water, fertilizers, diseases, etc. While some tests are best performed by a laboratory, others can be easily conducted on location, saving time and money. Three tests in particular, EC, pH, and ALKALINITY, can reveal valuable information about water quality, soil salinity, and fertilizer concentration. MyronL Company’s portable AGRI-METERS provide you with a simple, fast, and accurate means of testing these parameters.

    By Myron L Company based in Carlsbad, CALIFORNIA (USA).

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    Water Testing for Textile Manufacturing

    The textile manufacturing industry encompasses many and diverse processes that rely heavily on the use of water, energy, chemicals, and other resources. Wet spinning, sizing, desizing, scouring, bleaching, mercerization, dyeing and printing are just a few. Monitoring and controlling the pH, TDS/Conductivity/Salt Concentration, ORP (REDOX), and Temperature of the aqueous solutions used in these processes conserves costly resources, controls quality, and reduces the amount of pollution that must be treated before discharge of effluent wastes. This can be done manually with handheld instruments or automatically with in-line monitor/controllers.

    By Myron L Company based in Carlsbad, CALIFORNIA (USA).

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    Oxygen monitoring from aerobic and anaerobic for biodegradation tests

    Biodegradation tests involve testing samples in response to various parameters: dilution, nutrient addition, pH, temperature, and others. The pattern of oxygen uptake in aerobic tests; nitrogen gas production in anoxic denitrification tests; methane production in methanogenic tests; hydrogen production during glycolysis; and carbon dioxide production during fermentation reactions gives a measure of the rate and extent of biodegradation of the organic constituents of the test sample.

    By Respirometer Systems and Applications, LLC based in Springdale, ARKANSAS (USA).

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    Surface Water Quality Testing for the Environmental Monitoring Industry

    We have a wide range of water testing equipment that is used to record trends across different water quality parameters in water bodies such as streams, lakes and rivers, as well as in seawater. Understanding these trends means that when there is a change it could be an early warning that there is a pollutant in the water or there has been a change in the aquatic ecosystem. Early detection is necessary to put mitigating measures in place.

    Our parameters are wide ranging, although the most commonly measured in surface water testing and monitoring are dissolved oxygen, pH, electrical conductivity and temperature, which are standard on most Aquaprobes. If you require specific parameters to be tested, there is the option to add additional parameters.

    By AQUAREAD Limited based in Broadstairs, UNITED KINGDOM.

  • Wireless multiple parameter monitoring

    Monitoring multiple sensing points including fill level, pH, conductivity, and flow—often from varied locations in a large water treatment plant—can be a challenge. With four analogue inputs, a single SureCross Node can easily centralize and transmit critical monitoring information from multiple Sensors or controllers. Banner’s unique power management capability enables a single Node equipped with a FlexPower™ optimized QT50U or T30UX ultrasonic analogue sensor (level detection) to operate for years on a single DX81 battery power supply.

    By Banner Engineering Corp. based in Diegem, BELGIUM.

  • Water quality monitoring systems for feedwater, storm & condensate industry

    The most important parameters in Water/Steam Cycles such as Cation conductivity, dissolved oxygen and pH are available as pre-assembled and factory tested units. Dedicated analyzers for sodium, silica, phosphate and hydrazine are also factory tested and calibrated for immediate operation.

    By SWAN Analytische Instrumente AG based in Hinwil, SWITZERLAND.

  • Headworks Odor and Corrosion Control Using Hydrogen Peroxide

    Hydrogen Peroxide typically controls odors and corrosion at treatment plant headworks by direct oxidation of hydrogen sulfide (H2S) within the wastewater. In the direct oxidation mode, H2O2 is applied to the wastewater 5-30 minutes prior to the point where the odors are being released, generally as the wastewater line enters the plant boundary. The efficiency of hydrogen peroxide treatment depends upon the available reaction time, the level of iron in the wastewater (reaction catalyst), wastewater pH and temperature, and the initial and target levels of H2S odor. Under optimal conditions, effective dose ratios are 1.2 - 1.5 parts H2O2 per part dissolved sulfide, and can be reliably estimated through beaker tests. H2O2 + H2S → S0 + 2H2O Frequently, control of odors through the primary clarifiers is wanted. In such case, the mechanism of control is both direct oxidation of H2S (as it rises from the solids blanket), and prevention of odor generation (by supplying dissolved oxygen). Control is typically achieved with a booster dose of 1-2 mg/L H2O2 added to the clarifier influent. Higher doses or alternate modes of addition may be required in cases where: 1) hydraulic retention times are > 2-3 hours; 2) solids blanket depths are > 1-2 feet; 3) soluble BOD levels are > 200-300 mg/L; or 4) waste activated sludge is co-settled with the primary solids. 2H2O2 → O2 + 2H2O

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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