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oxygen measurement Applications

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    Oxygen Permeation Analyzers for Packaging Industry

    Systech Illinois` oxygen permeation analyzers offer reliable and versatile testing for all bottles, packages and films. These instruments provide extremely fast purge down time; accurate readings at the lowest levels and the highest quality sensors in the market. The changeover from wet to dry sample runs is the fastest on offer. Precise control gives a wide sample temperature range of 5° to 50°C and a measured and controlled relative humidity range of 20 to 90% RH.

    By Systech Instruments Ltd based in Thame, UNITED KINGDOM.

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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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    Process Analytics - Biotech and Hygienic Processes

    METTLER TOLEDO/INGOLD offers a wide range of hygienic and sterilizable/auto- clavable measurement solutions for biotech and hygienic processes. Based on field experiences and expertises in hygienic design for CIP (Cleaning-in-Place) and SIP (Sterilization-in-Place) applications our solutions comply with the most stringent industry requirements. Critical biotech/hygienic applications in pharmaceutical, food and beverage are controlled by measuring pH, conductivity, dissolved oxygen, CO2 and turbidity.

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

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    Process Analytics - Water Purification (THORNTON)

    THORNTON specializes in measurements for pure and ultrapure water treatment with parameters of resistivity, conductivity, total organic carbon (TOC), flow, pH, ORP, dissolved oxygen and ozone. THORNTON products are frequently used in semiconductor and microelectronics manufacturing, pharmaceutical and biotechnology processing, and power and steam generation, as well as food and beverage production.

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

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    Permeability Testing of Medical and Pharmaceutical Packaging Industry

    The measurement of oxygen and water vapor permeation is often critical in medical and pharmaceutical applications; to prevent contamination, to extend the shelf life and potency of drugs and to ensure powders do not clog. Systech`s permeation analyzers and corresponding software conform to 21CFR Part 11.

    By Systech Instruments Ltd based in Thame, UNITED KINGDOM.

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    Gas monitoring and dust monitoring for the iron / steel industry

    • Blast furnace offgas, combustion control, CO, CO2, O2
    • Converter (Basic oxygen furnace BOF)
      • CO gas recovery
      • O2 measurement for explosion prevention
    • Electric arc furnace offgas, combustion control, CO, O2, H2O
    • Reheating furnaces, O2
    • Coking plant
      • CO analysis in oven offgas
      • O2 analysis for explosion prevention in raw coke gas or after tar precipitator
      • NH3 measurement after scrubber
      • H2S measurement after scrubber

    By NEO Monitors AS based in Skedsmokorset, NORWAY.

  • Stack Testing for Power Generation Plants

    POWER GENERATION INDUSTRY: Conducted detailed measurements of volumetric flow, oxygen, and carbon dioxide levels in huge main ducts in the Economizer Outlet, Air Heater Inlet, and Exhaust Stack locations in order to evaluate overall plant and control system performance

    By AirSource Technologies, Inc. based in Shawnee, KANSAS (USA).

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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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    Fluoride emissions monitoring in aluminum smelters

    Production of aluminum from its ores at aluminum smelters results in carbon dioxide CO2, carbon monoxide CO, sulfur dioxide SO2, and hydrogen fluoride HF gas emissions during the electrolytic process phase to the atmosphere. The gas emissions need to be monitored. Typically the smelters have emission limit values (ELVs) for sulfur dioxide and hydrogen fluoride emissions. These emissions should be measured accurately and with good precision, to ensure the smelter does not exceed its emission limit values. In addition several fluoride compounds may be produced in the electrolytic bath in the event of an oxygen shortage. These compounds include carbon tetrafluoride CF4, hexafluoroethane C2F6, sulfur hexafluoride SF6, and silicon tetrafluoride SiF4. These additional emission components are problematic, as they have high Global Warming Potential (GWP) values. The GWP is a relative measure designed to demonstrate how much heat a greenhouse gas (GHG) traps in the atmosphere. Emission of one kilogram of carbon tetrafluoride into the atmosphere today has the potential of heating the atmosphere as much as 7,000 kilograms of carbon dioxide over the next 100 years.

    By Gasmet Technologies Oy based in Helsinki, FINLAND.

  • COD Reduction

    Chemical Oxygen Demand (COD) is used as a measure of organic pollutants in water. In wastewater treatment, it indicates the efficacy of a treatment process and is expressed in milligrams per litre (mg/L) or parts per million (ppm). Removing certain fractions of COD in waste streams can be particularly challenging, especially to levels safe for discharge to the environment.

    By Arvia Technology based in Runcorn, UNITED KINGDOM.

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    Wastewater solutions for the industrial effluent pollution management

    Problem: Industrial manufacturers face stringent regulations for discharging wastewater to the environment and municipal sewer systems. Biochemical Oxygen Demand (BOD) is a primary concern for many discharge limits, as wastewaters high in BOD can have adverse impacts on the aquatic environments by leading to oxygen depletion. In some cases, as a means to supplement BOD, it is also desirable to monitor chemical oxygen demand (COD) of industrial effluents. Both of these tests, are time and labour intensive reducing the frequency at which they can be measured for a given effluent.

    By Real Tech Inc. based in Whitby, ONTARIO (CANADA).

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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.

  • Aquatic Respirometry

    Aquatic respiration can be simply yet accurately measured on intact, live organisms using a variety of Strathkelvin Instruments respirometry systems. As with all of our respirometry systems, an aquatic system would comprise of an oxygen meter (either 782 or 928), one or more, high precision, 1302 oxygen electrodes (link) and a respiration chamber to house the organism. The researcher also has a choice of measuring respiration rates via closed or flow-through respirometry. Both closed and flow-through systems utilise the same oxygen meters and 1302 oxygen electrodes, however, the chamber in which the organism is housed will differ.Respiration of aquatic organisms (closed cell method)

    By Strathkelvin Instruments Ltd. based in Motherwell, UNITED KINGDOM.

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    Gas Sensing for Gasification

    Syngas (short for synthetic gas) can be burnt and used as a fuel source, the main constituents of syngas are Carbon Monoxide (CO) and Hydrogen (H), which amount for around 85% of Syngas, and it is produced by a process called Gasification. Gasification starts with a base material which can originate from a wide variety of materials for example wood chips and pellets, plastics, municipal solid waste, sewage, waste crops, and fossil fuels such as coal. During Gasification the base material is reacted at high temperature without combustion with controlled amounts of oxygen (O) or steam. The composition of the base material combined with the amount of oxygen and heat used in the process affects the composition of the resultant SynGas, in which the CO can vary between around 20 and 60%. In addition, large amounts of H and CO are also formed. The measurement of CO is therefore an important feature in the production of SynGas.

    By Edinburgh Instruments Ltd based in Livingston, UNITED KINGDOM.

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