odor detection Articles

  • Analysis of Geosmin and 2-Methylisoborneol Utilizing the Stratum PTC and Aquatek 70

    Abstract Geosmin and 2-Methylisoborneol are organic compounds that have a distinct scent. These compounds also have an extremely low odor detection threshold and because of this, many drinking water laboratories require detection levels of below 10ppt. This application note investigates the detection of Geosmin and 2-Methylisoborneol at a one part per trillion (ppt) level utilizing Purge and Trap ...


    By Teledyne Tekmar

  • Origin and production of acetoin during wine yeast fermentation

    The flavor of alcoholic beverages is produced by a very large number of compounds (50). Among these, acetoin is important because of its involvement in the bouquet of wine, and it is the key compound in the biosynthesis of 2,3-butanediol and diacetyl. These two compounds are closely related to acetoin, representing three levels of oxidation in one four-carbon skeleton (8). Their contribution to ...

  • What’s Good For The Goose …

    We’re not just a software company. We’re a quality company; and that means we love processes. When we say “processes,” some people roll their eyes. But it’s really a matter of perspective. Some people see processes as restrictive. We see them as an agreed upon way to get the desired result, a way to ensure the desired result. I see them as my pathway to ...


    By Qualtrax Inc

  • StockPot Soup Company Chooses Tri-Mer Packed Tower System

    StockPot, a Campbell's Soup subsidiary, makes premium soups, sauces, chilies and marinades for the foodservice industry. To control odors from the cooking of meats, onions and other ingredients, StockPot purchased a Tri-Mer 40,000 cfm packed bed scrubber. Tri-Mer packed towers are well-suited to the foods and flavors industries and perform at efficiencies of 99% and higher. They are ideal for ...

  • Case Study: Packed bed scrubber

    StockPot, a Campbell's Soup subsidiary, makes premium soups, sauces, chilies and marinades for the foodservice industry. The company chose a Tri-Mer Odor Control System, a 40,000 cfm packed bed scrubber. Tri-Mer packed towers are well-suited to the foods and flavors industries and perform at efficiencies of 99% and higher. They are ideal for odors that are detectable below 1 ppm. And, where ...

  • Fire and Smoke residual air contaminants testing

    Only recently has the ability to accurately test for the residuals of fires become possible. There have long been concerns for the health of firefighters from fire emissions. Also, occupants of buildings and even neighborhoods affected by fire and the residuals of those fires are often greatly concerned about contaminants that exist for days, weeks, months, after the fire has been extinguished. ...

  • Use of biocatalysts to reduce hydrogen sulfide emissions from lagoons and landfills

    Emission of odors from ponds and lagoons occurs due to aerobic and anaerobic decomposition of organic solids to release hydrogen sulfide, ammonia, and other organic by-products.  Aerobic biodegradation occurs near the water-air interface, where diffusion of oxygen occurs, while anaerobic degradation prevails mainly near the bottom of the pond or lagoon, where there is low or no dissolved oxygen ...


    By PRD Tech, Inc.

  • Occurrence of earthy and musty odor compounds (geosmin, 2-methylisoborneol and 2,4,6-trichloroanisole) in biologically treated wastewater

    The concentrations of earthy and musty odor compounds (2-methylisoborneol (2-MIB), geosmin and 2,4,6-trichloroanisole (TCA)) in treated wastewater were measured. Concentrations of 2,4,6-TCA (4.3–37.7 ng/L) and geosmin (3.7–42.2 ng/L) higher than their odor thresholds were detected for effluents from large-scale treatment plants. The effluent from a small-scale wastewater plant ...


    By IWA Publishing

  • Dissolved organic carbon modulates the effects of copper on olfactory‐mediated behaviors of chinook salmon

    The modulation of Cu effects on olfactory‐mediated behaviors by dissolved organic carbon (DOC) and Fe was examined in juvenile chinook salmon. Chinook were exposed to several concentrations of Cu, DOC, and Fe alone or in combination in a flow‐through system for either 4 d (acute exposure) or 14 d (subchronic exposure) and tested for their ability to detect and avoid the odorant L‐histidine in an ...


    By John Wiley & Sons, Ltd.

  • Case study - N°NG2 – Natural gas monitoring – energyMedor

    Context & Challenges How to analyze H2S, mercaptans and/or THT for detecting the odor of the gas with the ability to have total organic sulfur calculation in a metering station? Chromatotec Solutions Instrument: energyMedor energyMedor is able to analyze H2S, mercaptans and/ or THT in addition to the calibration stream (permeation tube installed into the instrument ) at very low levels ...


    By Chromatotec Group

  • Lake Josephine Community, Florida - Case Study

    In January 2010, AdEdge Water Technologies, LLC was contacted by Aqua Utilities Florida to provide a hydrogen sulfide removal system for the Lake Josephine Community located in Highlands County, Florida. The existing water system consisted of two wells feeding into a centralized distribution system with a maximum capacity of 230 gpm being consumed by a population of 1,250 persons. The raw water ...

  • Lake Josephine Community, FL Hydrogen Sulfide Removal System - Case study

    In January 2010, AdEdge Water Technologies, LLC was contacted by Aqua Utilities Florida to provide a hydrogen sulfide removal system for the Lake Josephine Community located in Highlands County, Florida. The existing water system consisted of two wells feeding into a centralized distribution system with a maximum capacity of 230 gpm being consumed by a population of 1,250 persons. The raw water ...

  • Mastertaste Savors the Benefits of Cost-Effective Odor Control

    The aromas from savory flavors are detectable even at low concentrations, and pose special challenges for companies who manufacture or use them. Mastertaste, (Clark, N.J.) a Division of Kerry Group plc, is a leader in the development and production of savory flavors and blended seasonings. As part of a plant expansion, Mastertaste needed a system to eliminate odors from savory notes and ...

  • Smell and odor nuisance, what is that?

    As Aerox we offer our clients sustainable solutions for the reduction of industrial odor emissions. In the conversations we have with our contacts we often receive questions about how this exactly works, what smell actually is, why something stinks and why we actually are in this market. Hence it is interesting to consider what odor and odor nuisance actually are. In this article we have ...


    By Aerox B.V.

  • How to analyze H2S, all Mercaptans, THT as well as total sulfur for monitoring natural gas or gaseous fuels in metering station?

    Natural gas is colourless and odourless in its most pure form. When extracted, it can contain sulfur compounds such as H2S and Mercaptans that when in the presence of moisture can produce sulfuric acid that can degrade the pipeline. So for reasons of public safety as well as pipeline integrity, there is a need to measure and control precisely the level of odorant species in natural gas : ...


    By Chromatotec Group

  • Odorous volatile organic compound (VOC) emissions from ageing anaerobically stabilised biosolids

    Opportunities for the beneficial re-use of biosolids are limited by nuisance odour emissions. Volatile organic compounds (VOCs) from anaerobically stabilised biosolids were measured to identify compounds that could contribute to the overall odour character of nuisance emissions. Flux hood sampling and chemical analysis were used to identify VOCs emitted from biosolids as they were stored in ...


    By IWA Publishing

  • Variations of odorous VOCs detected by different assessors via gas chromatography coupled with mass spectrometry and olfactory detection port (ODP) system

    Odorous volatile organic compounds (VOCs) were analysed via a thermal desorption gas chromatograph coupled with a mass spectrometer and olfactory detection port (TD-GC-MS/ODP) to characterize odour emissions from a wastewater treatment plant (WWTP). Three trained ODP assessors, screened according to the European dynamic olfactometry standard (EN: 13725), were used for the olfactory analysis. ...


    By IWA Publishing

  • Hazardous Industries That Need Gas Detection Monitoring

    Of all occupational hazards, gases are considered silent killers. You can’t see, feel, or sometimes smell them, but they’re lurking around in the workplace. These substances endanger your employees, causing injuries, illnesses, and even accidental death. The following industries are among those that face hazardous exposure every day: Mining and Quarrying While naturally occurring ...


    By DOD Technologies Inc

  • Musty odor producing benthic cyanobacteria in the Tama River (Japan) and identification of species by genetic analysis

    In upstream reaches of the Tama River, musty odor substance (2-methylisoborneol (2-MIB)) began to be detected in 2008 and the concentration has been increasing thereafter. Then, in 2012, 2-MIB in raw water of a water treatment plant reached 210 ng/L. It was suspected that cause of musty odor was benthic cyanobacteria (Phormidium) which attached to stones on the riverbed. However, ...


    By IWA Publishing

  • Real time odour monitoring: odour abatement monitoring using electronic noses.

    The equipment implemented to reduce odour emissions is designed with effectiveness in mind. However, some operating conditions may reduce that effectiveness without an industrial site being able to detect this quickly. Processes that most of the time have low odour emissions may become, under certain weather conditions, a major nuisance source. An electronic nose system can detect odour ...

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