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oxygen monitor Applications

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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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    Oxygen Monitoring from Aerobic and Anaerobic for determination of biodegradation kinetics by respirometry

    Intrinsic kinetic tests involve adding relatively high concentrations of organic substrate to small concentration of acclimated microorganisms so that the COD/VSS ratio typically is greater than 10. Kinetic parameters are then determined by non-linear modeling using well-known relationships between biological growth and oxygen uptake.

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

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    Oxygen monitoring from aerobic and anaerobic for toxicity test

    Toxicity of pure chemicals is assessed using respirometers by adding increasing concentrations to an active culture. The concentration at which oxygen uptake or gas production begins to decrease is known as the “threshold toxicant concentration.”

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

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    Oxygen monitoring from aerobic and anaerobic for biomass activity tests

    Pulse-Flow respirometers can be used to assess biomass activity for aerobic and anaerobic reactions. In aerobic tests, cultures are combined with nutrients, trace minerals, and an organic substrate – such as acetic acid or ethanol. The maximum oxygen uptake rate reflects the amount of active biomass in the test culture.

    By Respirometer Systems and Applications, LLC based in Springdale, ARKANSAS (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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    Biochemical Oxygen Demand (BOD) 5 Day Application Note

    The MANTECH PC-BOD is ideally suited for 5 day BOD analysis. Attached is an application note to illustrate the performance and trust for this important regulatory parameter.

    By MANTECH based in Guelph, ONTARIO (CANADA).

  • Carbon Monoxide (CO) monitoring

    Carbon monoxide poisoning is the most common type of fatal poisoning in many industrialized countries. Carbon monoxide is a colourless, odorless and tasteless gas caused by the incomplete combustion of hydrocarbon fuels. Carbon monoxide is a toxic gas to the human body, when inhaled it binds to hemoglobin, myoglobin, and mitochondrial cytochrome oxidase reducing oxygen storage, transport and respiration in these organelles.

    By Ecotech Pty Ltd based in Knoxfield, AUSTRALIA.

  • Hydrogen Sulfide (H2S) monitoring

    Hydrogen sulfide is the chemical compound with the formula H2S. H2S is colorless, toxic and flammable and is responsible for the foul odour of rotten eggs and flatulence. Hydrogen sulfide often results from sulfur reducing bacteria in nonorganic matter (in the absence of oxygen), such as in swamps and sewers (anaerobic digestion). H2S also occurs in volcanic gases, natural gas and some well waters.

    By Ecotech Pty Ltd based in Knoxfield, AUSTRALIA.

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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.

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    Surface Water Quality Testing for the Environmental Monitoring Industry

    Aquaread stock a wide range of testing equipment designed to track a number of parameters and water quality testing measures. These can be used in many different bodies of water, including rivers, lakes, streams and seawater. The advantages of tracking water quality and testing for numerous parameters means that it is easier to notice changes which could cause damage to aquatic ecosystems. Early detection not only helps with monitoring water quality, but also helps to put mitigating measures in place. We have a wide range of parameters, although the most popular of these allow for surface water testing, pH, temperature, electrical conductivity and measuring levels of dissolved oxygen. These are standard measurements included in most standard Aquaprobes, although if you require more specific parameter testing then there are a number of additional parameters which can be added onto to the base Aquaprobe to compensate this.

    By AQUAREAD Limited based in Broadstairs, UNITED KINGDOM.

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    Landfill Gas Monitoring for the Bioenergy Industry

    Our range of gas monitoring instruments are used to measure the constituents of Biogas and monitor Landfill sites for Methane (CH4), Carbon dioxide (CO2), Hydrogen sulphide (H2S), Carbon Monoxide(CO) and Oxygen (O2).

    By Hermann Sewerin GmbH based in Gütersloh, GERMANY.

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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.

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