Odor Monitoring Articles

  • What is turbidity?

    Turbidity measures the relative clarity of a water sample. It is determined by the amount of scattering that occurs when a light source is shined through a water sample. Light scattering is caused by increased concentrations of suspended particles in water that are not individually visible to the naked eye, which can give the water a cloudy appearance. This parameter is used as a general ...


    By MANTECH Inc.

  • 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.

  • Methods for controlling stored urine odor in resource-oriented sanitation

    Urine odor is a major challenge in the development of resource-oriented sanitation (ROS). One common solution to overcome odor issues is to use energy-consuming ventilation practices. However, historically ancient Koreans practiced separation of urine and feces, followed by the collection and utilization of gathered sanitary matters. Furthermore, ancient Persians developed solutions to urine ...


    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

  • Decision sciences in the management of water resources: multi-criteria methods and game theory applied to the field of sanitation

    Due to the complexity of some managerial problems, especially those related to sanitation, academic studies have shown the need to use appropriate methods to assist in this type of decision. Within this context, this research aimed to provide a review of the literature from the field of decision sciences to the field of water resource management. It was identified in this study that the use of ...


    By IWA Publishing

  • Control of urine odor in different sanitation practices and its implication on water saving

    To avoid odor in sanitation systems, urine is usually diluted with water (flushed), which leads to high water consumption. The smell may remain in sanitation systems if the systems are not well managed, or if the urine is flushed with insufficient amounts of water. In this study, using the standard threshold odor number (TON) measurement as an indicator of urine odor, the effects of the pH and ...


    By IWA Publishing

  • Particle separation from road runoff by a decentralised lamella system – laboratory tests and experiences in the field

    A new decentralised settling system based on the principle of lamella separation was developed for the treatment of road runoff. Two different laboratory test methods, the DIBt (Deutsches Institut für Bautechnik) procedure and our own approach, were applied in order to evaluate the efficiency of the system based on the separation of fine mineral particles and a mixture of mineral and organic ...


    By IWA Publishing

  • Odour Control at Pesticide Facilities: Eliminating volatile compounds

    Chemical formulation plants are susceptible to emissions of unpleasant and malodorous volatile compounds, a fact which makes the implementation of efficient odour control measures essential. North-western Spain is home to one of the country's oldest industrial sites for the manufacture of phytosanitary products, with some facilities located relatively close to populated areas. Recently, the ...


    By Bioconservacion SA

  • Comparison of different measurement methods of odour and odorants used in the odour impact assessment of wastewater treatment plants in Poland

    The aim of this study was to compare sensory and analytical methods used to measure odour and odorants concentrations for odour impact assessment on municipal wastewater treatment plants (WWTPs). A range of sources and odour or odorants concentrations were used to compare the methods. Four different odours and odorants measurement methods were compared: field olfactometry using Nasal Ranger® ...


    By IWA Publishing

  • 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

  • Successful Dunbar Field Life Extension

    The advent of high-power multiphase pumps is changing the world of oil production. In particular, they allow continued production from fields that are nearing the end of their useful lives. These revolutionary pumps have been in operation since autumn 1999 on the Dunbar platform, in the UK sector of the North Sea. Multiphase pumping (MPP) is essentially a means of adding energy to the ...


    By Sulzer Management Ltd

  • 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 Management Ltd

  • 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

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