Odor Monitoring Articles

  • HAV mis-measurement – to no standards whatsoever…

    Misunderstanding Hand Arm Vibration monitoring marketing material can put hands and safety policies at risk. Caveat emptor. We are regularly asked about new vibration measurement technology, particularly re the latest hand-held, glove or wrist mounted transducers that are presented as the latest assessment improvements. Whilst they may be useful tools, unfortunately some claims have been ...

  • Guide to Measuring Biofuel Blending

    As the global commitment to renewable energy sources grows, the importance of using biodiesel as a blending component with diesel fuel has increased. Biodiesel consists of fatty acid methyl esters (FAME) which are produced by the transesterification of certain feedstock oils, such as soy, rapeseed, canola, and others. The ...


    By Spectro Scientific

  • Measuring Oil Chemistry: Nitration, Oxidation, and Sulfation

    An in-service lubricant encounters air, heat, pressure, corrosive agents, and other factors that cause chemical changes in the oil. A change in oil chemistry can affect the ability of the lubricant to do its job (for example if crucial additives have been depleted). Over time, these chemical reactions can result in build-up of ...


    By Spectro Scientific

  • Benefits of UV Transmittance (UVT) field testing for selling & servicing UV Disinfection Systems

    The Real UV254 ‘P’ series portable meters can be used to measure UV transmittance (UVT) in a number of situations, and are especially beneficial when working with small UV disinfection systems. The following cases outline two situations in which Real Tech’s portable meters are invaluable. Servicing Small UV Disinfection Systems An existing customer is ...


    By Real Tech Inc.

  • E-guide for Measuring TAN and TBN in Oil

    Monitoring TAN and TBN is an important test for measuring lubricant condition. There are several methods available ranging from expensive laboratory methods to quick field tests. In a laboratory setting, methods are chosen based on the highest accuracy and repeatability that can be achieved with a decent throughput. Out in the field, it is most important to get a trustworthy result quickly enough ...


    By Spectro Scientific

  • Field Performance Testing for Pipeline Pumps

    Significant energy savings can be achieved by optimizing pump operating efficiency. Measuring the exact pump performance with crude oil under realistic conditions in the field is the first step towards improving the pump efficiency in the future. About 20 billion barrels of crude oil were transported through pipelines in 2015. Around the world, there are over one million kilometers of ...


    By Sulzer

  • Four Methods to Measure TAN/TBN in Lubrication Oil

    TOTAL ACID NUMBER A high concentration of acidic compounds in a lubricant can lead to corrosion of machine parts and clogged oil filters due to the formation ...


    By Spectro Scientific

  • Performance evaluation of a low-cost odour trap installed in waterless urinals

    Waterless urinals save precious fresh water normally used for flushing and reduce odour levels in restrooms. However, existing models of waterless urinals available on the market are expensive and maintenance costs of the odour traps of these urinals are also quite high. Experiments conducted using a low cost membrane-based waterless-urinal odour prevention trap available in India revealed a ...


    By IWA Publishing

  • Effects of the combination of aeration and biofilm technology on transformation of nitrogen in black-odor river

    Excess nitrogen in urban river networks leading to eutrophication has become one of the most urgent environmental problems. Combinations of different aeration and biofilm techniques was designed to remove nitrogen from rivers. In laboratory water tank simulation experiments, we assessed the removal efficiency of nitrogen in both the overlying water and sediments by using the combination of the ...


    By IWA Publishing

  • Nitrogen and Nitrous Oxide – the differences you need to know

    We’ve previously posted blogs about the confusion between carbon dioxide (CO2) and carbon monoxide (CO) as these gases are regularly mixed up. However, ...


    By Analox Sensor Technology

  • Linking field‐based metabolomics and chemical analyses to prioritize contaminants of emerging concern in the Great Lakes basin

    The ability to focus on the most biologically relevant contaminants affecting aquatic ecosystems can be challenging because toxicity assessment programs have not kept pace with the growing number of contaminants requiring testing. Because it has proven effective in assessing biological impacts of potentially toxic contaminants, profiling of endogenous metabolites (metabolomics) may help screen ...


    By John Wiley & Sons, Ltd.

  • HydraProbe Field Portable Used to Validate the Soil Moisture Active Passive Satellite Data in Manitoba

    The calibration and validation of remotely sensed soil moisture products relies upon an accurate source of ground truth data. The primary method of providing this ground truth is to conduct intensive field campaigns with manual surface soil moisture sampling measurements, which utilize gravimetric sampling, soil moisture probes, or both, to estimate the volumetric soil water content. Soil ...

  • Microstickies agglomeration by electric field

    Microstickies deposits on both paper machine and paper products when it agglomerates under step change in ionic strength, pH, temperature and chemical additives. These stickies increase the down time of the paper mill and decrease the quality of paper. The key property of microstickies is its smaller size, which leads to low removal efficiency and difficulties in measurement. Thus the increase ...


    By IWA Publishing

  • Measuring Impact of Traffic Noise in Apartment Living Room Case Study

    Problem An apartment on the ground floor of a two story house in the city lies close to a busy road. The living room in the apartment is facing the road, and the inhabitants are bothered by traffic noise, especially in the morning and the afternoon, when the traffic is the heaviest. Traffic noise could be clearly heard when standing in the living room. The facade facing the city ...


    By Norsonic AS

  • Being a Good Neighbor With Eco-Friendly Odor Management

    As a result of urban revitalization projects, as well as suburban sprawl and development, industrial and agricultural operations are now becoming surrounded by new residential and commercial neighbors. For industrial facilities that call these neighborhoods home, one of the biggest challenges is completely mitigating any odor that may occur. When it comes to fighting odors, being a good neighbor ...


    By OMI Industries (OMI)

  • Chromatotec monitor air quality in Arcachon Bay through its own air quality station

    Chromatotec® made this summer the inauguration of its private monitoring station in Andernos-les-Bains. With a wealth of experience, thanks to which it already deployed massively its systems around the world, the group wanted to implement its own monitoring station to have complementary information to the actual air quality network. These data will allow the group to extend its ...


    By Chromatotec Group

  • Discharge Measurement in a Short Intake with a Converging Section – a Case Study

    In the context of a planned retrofit and upgrade of the hydropower plant Wettingen, operated by the Elektrizitätswerke Zürich, three intakes were equipped with acoustic transit time flow measuring devices. Since the flow meters are installed in a converging section, downstream of a pier, it became necessary to perform numerical flow simulations in order to weight the acoustic path ...


    By HydroVision GmbH

  • Odorant screening and possible origin analysis of odor episodes in one reservoir in northern China

    Odorous drinking water problem occurred repeatedly in one city in northern China in recent years. The uniqueness of this odor episode lay in two aspects: (1) the odorous chemicals were quite different from common odorants, such as geosmin and 2-MIB; and (2) it occurred repeatedly in different seasons during a time span of more than 2 years. The screening of odorants was the first and one of ...


    By IWA Publishing

  • Greenstars portable monitoring for CHP and flares case study

    Greenstar's award-winning KTK landfill site in Kilcullen, Co. Kildare, is unusual in Ireland in that it has three gas engines feeding electricity to the grid and two flares. In Ireland, while flaring is common, engines are not. The flares are run in tandem with engines so that if an engine is ramped down for repair or service, the flare ramps up automatically. All are supplied by 122 landfill gas ...


    By Geotech

  • Groundwater: Low-flow Purging and Sampling

    Significant timesavings, improved sample process integrity, quality assurance and minimal quantities of potentially contaminated purge water to manage - are attractive as the focus on groundwater quality sharpens and economics demand best cost-benefit based methods Water has become a vitally important resource.  Maintaining its quality and quantity and avoiding pollution are set to be ...


    By Geotech

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