oxygen measurement technology Articles

  • Analysis of peCOD Technology and Comparison to Dichromate Method

    Bridgnorth Aluminium is a UK-based company that makes high-quality aluminum products for the lithographic industry. Their desire to reduce water consumption and improve process efficiency, led to a 6 figure investment in a new, on-site, effluent treatment plant. Their aim is to reduce water discharge, conform to stringent water authority requirements, increase recycling of water on-site ...


    By MANTECH

  • Optical measurement of oxygen concentration in water

    The optimisation of oxygen transfer is a key element of control and regulation strategies in municipal and industrial sewage treatment plants. In 2003, HACH LANGE became the first instrument manufacturer to launch the LDO (Luminescent Dissolved Oxygen) method for determining dissolved oxygen in water. The LDO technology is based on pulsed blue light, which brings benefits such as high precision, ...


  • Dissolved oxygen measurements in aquatic environments: The effects of changing temperature and pressure on three sensor technologies

    Dissolved oxygen (DO) is probably the most important parameter related to water quality and biological habitat in aquatic environments. In situ DO sensors are some of the most valuable tools used by scientists and engineers for the evaluation of water quality in aquatic ecosystems. Presently, we cannot accurately measure DO concentrations under variable temperature and pressure conditions. ...

  • Trace Oxygen measuring systems for Reflow and Wave solder machines

    Systech Illinois are the only company that has the option of RACE™ cell technology. What is the RACE™ cell? It is a patented dual cell technology which employs a second fuel cell to protect the first cell from being exposed to high concentrations of O2. What does it do?  ...


    By Systech Instruments Ltd

  • Boiler Dissolved Oxygen Control

    DISSOLVED OXYGEN CHEMISTRY Dissolved Oxygen (DO) is a measure of the amount of oxygen, usually thought of as a gas, that is dissolved in a liquid such as water. Oxygen is essential to life and is also the most common element found taking part in corrosion reactions. DO can be thought of as the fuel needed for the corrosion process to proceed. It is the corrosion reactions that necessitate ...


    By IC Controls Ltd.

  • What is Chemical Oxygen Demand (COD)?

    Chemical Oxygen Demand (COD) analysis is a measurement of the oxygen-depletion capacity of a water sample contaminated with organic waste matter. Specifically, it measures the equivalent amount of oxygen required to chemically oxidize organic compounds in water. Why Measure COD? COD is used as a general indicator of water quality and is an integral part of all water quality ...


    By MANTECH

  • Oxygen Transfer in a Biological Aerated Filter

    The City of San Diego (City) operates the Point Loma Wastewater Treatment Plant (PLWTP) which can normally treat up to 240 million gallons per day (MGD) of chemically enhanced primary treated (CEPT) effluent for ocean disposal. The City wanted to understand the performance capabilities of Biological Aerated Filters (BAFs) in treating CEPT effluent to secondary standards. To this end, the City ...

  • Continuous measurement of Process oxygen for Claus sulfur recovery unit (sru) start-ups and shut-downs case study

    During start-up and shut-down, any time a sulfur recovery unit (SRU) transitions from ambient temperature through fuel gas warm up to the introduction of acid gas, measurement of 02 stoichiometry is critical. Historically, operators have manually taken samples using a portable electrochemical type Os analyzer. While giving more or less satisfactory results, the requirement for more stringent ...

  • Measuring Short-Term BOD

    Measurement of oxygen uptake rates in activated sludge processes is essential to their satisfactory operation. Traditionally, oxygen uptake rates (OUR) have been determined by using a dissolved oxygen probe to measure the change in dissolved oxygen in a BOD bottle. While this method is rapid, it provides only a snapshot, at a single point in time, of the oxygen uptake rate reaction in a treatment ...


    By Challenge Technology

  • Efficiency of Process Measurement Technology for Determining Nutrient Parameters – Yesterday, Today and Tomorrow

    Abstract The costs and benefits of process measurement instruments in sewage treatment plants were the subject of intensive debate in the 1990s. Cost-benefit studies, comparing the potential savings in energy, consumables and personnel with the additional costs of using the instruments, resulted in recommendations specifying the minimum sewage treatment plant size at which the use of such ...


  • Oxygen Release Compound - Canada Case Study

    EHC-O Oxygen Releasing Compound - ES&E Magazine (May 2007) A whimsical comment by the author Michael McClary compels one to realize that more intuitive processes can be overlooked when considering technology’s abilities to improve our natural environments. He said: “Irrigation of the land with seawater desalinated by fusion power is ancient. It’s called rain.” In situ treatment of ...


  • Analox case study: Monitoring oxygen at Cranfield airfield

    Introduction For personnel safety, monitoring of oxygen levels was required as part of an experimental field campaign based at Cranfield airfield. This experiment was undertaken by researchers in the atmospheric physics group at Imperial College London. The researchers are interested in measuring Far-infrared radiance fields in the atmosphere ...


    By Analox Sensor Technology

  • Performance-Based Measurement Systems

    Many of the Environmental Protection Agency's (EPA's) methods used to monitor air, water and soil for environmental contaminants prescribe step-by-step details on how the chemical analysis must be conducted and prohibit any deviations or variations. The EPA has recognized that monitoring equipment and technology have improved tremendously over the last few years; that environmental media do not ...


    By WSP | Parsons Brinckerhoff

  • Water quality measurement extreme

    Background The characteristics of the Rio Tinto in the south-west of Spain, near Sevilla, are his ruby colour and the extremely sour pH-value between 0 and 2 pH-units. The river carries a mixture between poisonous heavy metals like copper, nickel, arsenic, iron and cadmium, dissolved in high-percent sulphuric acid. It’s not proved where these unusual conditions come from. As per current ...


    By The OTT Hydromet Group

  • What are the differences between Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)?

    Ask the expert: What are the differences between Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)? Answer: Both COD and BOD test methods aim to give an indication of the amount of pollution in a water sample. COD is the amount of oxygen required to chemically breakdown the pollutants whereas BOD is the amount of oxygen ...


    By Camlab Limited

  • PeCOD® Analyzer oxygen demand analysis for source & treated drinking waters

    MANTECH’s chemical oxygen demand (COD) analyzer is breaking new ground in the science of monitoring source and treated drinking water. In addition to providing 15-minute COD results and biochemical oxygen demand (BOD) estimates, MANTECH’s PeCOD® Analyzer measures natural organic matter (NOM) in raw and treated drinking water. The NOM Analyzer™  — which is the ...


    By MANTECH

  • Energy Optimisation by Determination of Critical Oxygen Point in WWTP Operations

    The control of dissolved oxygen levels in Waste Water Treatment plants has been the subject of considerable technological improvement over the past 2 decades. Typically the energy required for aeration purposes in aerobic activated sludge plants is in the region of 35% to 65% of the total energy costs for the facility. On a global basis energy conservation is taking on greater and greater ...

  • Headspace gas and oxygen permeation analysis of food packaging designs - Case Study

    Food packaging designs tested using Systech Illinois gas analysis equipment At the Loughry Campus, Systech Illinois' headspace gas analyzer and oxygen permeation analyzer are used in the testing of food packaging. Located in Cookstown, County Tyrone, Northern Ireland, Loughry Campus offers educational and training programmes in all elements of Food Management. Students have ...


    By Systech Instruments Ltd

  • Monitoring the oxygen content in bio-methane-to-grid supply - Case Study

    Since 1984, Orbital has provided advanced technology solutions for the natural gas industry. Orbital’s customers, including the National Grid and the UK's gas distribution networks, rely on its crucial engineering support and specialised knowledge. Its value-added services and innovative products reduce the time it takes to identify, design and begin cost-effective delivery of new ...


    By Systech Instruments Ltd

  • Testing the oxygen barrier properties of biodegradable packaging materials - Case Study

    The Hemicellulose research group have chosen the Systech Illinois 8001 oxygen permeation analyser to test the barrier properties of polysaccharide films. The University of Helsinki is at the forefront of international research and doctoral education. The quality of the University’s research is reflected in the high number of Centres of Excellence, Academy Professors, ...


    By Systech Instruments Ltd

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