Odor Monitoring Articles

  • Case Study: Odor Abatement Solutions

    Odor issues related to industrial processes are not uncommon.  An odor is caused by one or more volatilized organic compounds (VOCs) that humans can perceive by the sense of smell.  The challenge is that “odor is subjective, and what is sweet to some, can be a nuisance to others.   In most cases the ...

  • Odorous compounds monitoring, olfactometry, human noses? Which option should you choose?

    Odors are very distinct air contaminants as they generate nuisances and can affect nearby residents. The factors playing a role in the determination of odor annoyance are: odor concentration and intensity, frequency, appreciation, duration and location. Several solutions are available as sensory approach (dynamic olfactometry), sensor technologies (portable sensors, electronic noses, etc.). In ...


    By Chromatotec Group

  • Development of on-line and field dual TD-GC-FID/MS for automatic and continuous ambient air and odor monitoring

    Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, T014 and T015 lists can be measured in many ranges of concentration, from ng/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform using chromatographic ...


    By Chromatotec Group

  • Application in renewable energies field : odor online monitoring in methanization process

    When odor issues occur at an industrial site, rapid diagnosis must be done and a strategy defined to treat odor sources definitively. Today, the sensory panel approach using dynamic olfactometry analysis is considered as first approach to rank odor sources and subsequently to treat the most noxious odors. When investigating the source of the odor, an online monitoring system provides for the best ...


    By Chromatotec Group

  • Analyzer underpins growth of container inspection company - Case study

    After a career as a customs officer in the Netherlands, Wim van Tienen was well aware of the toxic gas hazards presented by some freight containers, so in 2009 he started a company, Van Tienen Milieuadvies B.V., offering gas analysis and safety advice. The company grew quickly and now employs 23 staff. Wim attributes a large part of this success to the advanced FTIR gas detection and ...


    By Gasmet Technologies Oy

  • Method Abstract #126, Calcium, Magnesium and Total Hardness

    Calcium, Magnesium and Total Hardness Determination by Potentiometric Titration Using TRIS Buffer Scope and Application This method is useful for monitoring the calcium, magnesium and total hardness in water samples. It is a variation of Standard Method 2340C and ASTM D-1126. Hardness analysis typically involved the addition of an ...


    By MANTECH Inc.

  • Numerical modeling on sediment capture in catch basins

    Catch basins are designed to convey surface runoff into sewer systems. They are also found to be effective in retaining sediments. A number of factors can influence catch basin sediment capture efficiency, such as sediment size distribution, flow hydraulics and catch basin design. To better understand the influence of these factors, numerical simulations using the Eulerian-Lagrangian method ...


    By IWA Publishing

  • Extended CSO control storage: what could possibly go wrong?

    The Thames Tideway Tunnel (TTT), is one of the main components of the London Tideway Improvements Programme, designed to capture combined sewer overflows (CSOs) which currently discharge untreated combined sewage into the tidal river Thames. CSO discharges would be stored in the tunnel until there is capacity at Beckton sewage treatment works (STW), to accept, for treatment, pumped sewage from ...


    By IWA Publishing

  • doseBadge and optimus red – experts in their field! - Case study

    The largest greenfield festival in the world posed a challenge where innovative tactics were employed to ensure that noise measurements were accurate and valid. End user Richard Willson, Noise at Work Consultant for TESS, The Event Safety Shop. Richard is one of the UK’s most experienced festival noise specialists having worked on some of the UK’s most prestigious ...


    By Cirrus Research plc

  • 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

  • Living near a fracking well means more asthma attacks

    It's probably telling that the word ‘fracking’ sounds just shy of a curse word. Researchers at the Johns Hopkins Bloomberg School of Public Health have found that people who live near active, unconventional natural gas wells operated by the fracking industry were significantly more likely to suffer from asthma attacks. It’s the latest in a string of studies that has linked the ...


    By Allerair Industries

  • AMETEK Land `Aluminium Times` - Progressing Aluminium Radiation Thermometry

    Eleanor Chalkley, Design Physicist for AMETEK Land, works at the frontiers in aluminium radiation thermometry, aiming to produce reliable, accurate measurements in all conditions at all points in the aluminium manufacturing process. The most sensitive variable in the processing of aluminium is temperature. The difficulty in producing this measurement has led to many technological advances in the ...


    By AMETEK Land

  • Odour, how to measure?

    As Aerox we offer our clients sustainable solutions for industrial odour emissions. Together with our customers we solve the nuisance resulting from these emissions. We therefore also regularly get questions about odour, what exactly this is and how you can measure it. Measuring of smell The objective measuring of odour is not easy. Odour in itself is a very complex matter to ...


    By Aerox B.V.

  • Assessing methods for estimating roughness coefficient in a vegetated marsh area using Delft3D

    A Delft3D-FLOW model was used to simulate tidal flow in Davis pond marsh in Louisiana, USA. The study area is a freshwater marsh consisting of one main channel and floodplain. Vegetation-induced flow resistance greatly influences tidal flow dynamics in the marsh. This study evaluated eight approaches to estimate vegetation roughness, including two constant Manning's n values, four empirical ...


    By IWA Publishing

  • Black-odor water analysis and heavy metal distribution of Yitong River in Northeast China

    The black-odor mechanism of Yitong River was analyzed based on survey and monitoring results. We found that organic matter is the main pollution source of Yitong River and its tributaries. A black-odor evaluation model that can describe the pollution of the Yitong River water system was developed, and this model has the parameters I = 0.21 [CODCr] + 0.18 ...


    By IWA Publishing

  • Difficulties and modifications in the use of available methods for hydraulic conductivity measurements in highly clogged horizontal subsurface flow constructed wetlands

    Despite the fact that several authors consider the available measurement methods of hydraulic conductivity (ks) suitable for a good representation of the bed condition and clogging potential in horizontal subsurface flow constructed wetlands, others have questioned their adequacy. In this work, hydraulic conductivity measurements with conventional and modified methods were ...


    By IWA Publishing

  • Optimising existing equipment with Bioconservación products

    As part of its technical support service offered to clients on an ongoing basis, Bioconservacion conducted an efficiency study at the express request of one of its customers. The study explored solutions to improve efficiency in eliminating odours origintating from biological reactors through the use of horizontal deodorisation systems. The objective was to guarantee the ...


    By Bioconservacion SA

  • Axetris Sensor Field Test

    The Axetris LGDs were operated continuously for two years. After intensive laboratory testing, they went out into the field in 2015. Axetris was able to test the functionality of its sensors under real-life conditions thanks to the support of the Linth waste incineration plant. The gas concentration measuring devices called laser gas detectors ( ...


    By Axetris Ag

  • 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.

  • Estimating discharge in rivers through the combined use of dimensionless isovels and point velocity measurements

    This paper presents a procedure for estimating discharge in a river cross-section based on the combined use of dimensionless isovels and point velocity measurements. Specifically, taking the Biot–Savart law on the magnetic field induced by an electric current in a wire as their basis as already done by other researchers, the authors propose a new formulation of the relationship characterizing ...


    By IWA Publishing

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