volatile organic compound Articles

  • Review of Biofiltration Review of Biofiltration of Odors and Volatile Organic Compounds (Volatile Organic Compounds (VOCs VOCs)

    - Biofiltration of odors and volatile organicshas been practiced successfully for overthree decades - Media used in biofiltration can be categorizedinto two main types: * Natural Media –Compost, soil, peat * Synthetic Media –plastic, ceramic. - Currently, there is no systematic way ofcomparing the cost-performance of ...


    By PRD Tech, Inc.

  • VOCs in the Printing Industry

    Reducing the Impact of Volatile Organic Compounds in the Printing Industry 1. BUSINESS CHALLENGE In 2005, a major Canadian printing company came to ÉEM inc. with the challenge of reducing their environmental impact from the use of volatile organic compounds (VOCs). VOCs are typically photochemically reactive, meaning they react with sunlight, to create smog and pollution. This issue had ...


    By EEM Inc.

  • Halogenated Volatile Organic Compounds

    Sites where halogenated VOCs may be found include burn pits, chemical manufacturing plants or disposal areas, contaminated marine sediments, disposal wells and leach fields, electroplating/metal finishing shops, firefighting training areas, hangars/aircraft maintenance areas, landfills and burial pits, leaking collection and system sanitary lines, leaking storage tanks, radioactive/mixed waste ...

  • Mechanisms for formation of organic and inorganic by-products and their control in nonthermal plasma chemical processing of VOCs

    This paper presents the major by-products derived from Nonthermal Plasma (NTP) chemical processing of different types of Volatile Organic Compounds (VOCs), mechanisms for their formation, effects of reactor types and additives such as water and gaseous oxygen on by-product distribution, and safe operations of NTP reactors for the removal of VOCs.Keywords: VOC removal, volatile organic compounds, ...


    By Inderscience Publishers

  • Modeling of air stripping from volatile organic compounds in biological treatment processes

    The removal of volatile organic compounds from biological treatment processes occurs through several mechanisms. These include biodegradation, adsorption onto solids, and air stripping or volatilization to the atmosphere. Volatilization results in fugitive emissions to the atmosphere, which is largely uncontrolled. Recent regulations have called ...

  • Detection of volatile organic compounds in waste water

    A standard Hiden HPR-40 has been used for the detection of VOCs (volatile organic compounds) in water. This forms an important monitoring procedure for any installation that uses or produces such compounds and performs testing to help ensure that they do not impact on the environment. Such testing often forms mandatory government legislation for businesses. The data show the detection limits and ...


    By Hiden Analytical Ltd.

  • Grand Canonical Monte-Carlo simulations for VOCs adsorption in non-polar zeolites

    Removal of Volatile Organic Compounds (VOCs) by sorption in non-polar zeolite materials (AFR, BOG, LTL) has been tested by Grand Canonical Monte-Carlo (GCMC) molecular simulation techniques. Computational details and simulation procedure were validated by comparison with experimental data reported in literature. Results showed promising adsorption properties in the low pressure range. The ...


    By Inderscience Publishers

  • What is a volatile organic compound (VOC)?

    Volatile organic compounds (VOCs) include a wide range of both natural and synthetic substances. VOCs are chemical compounds – mixtures of more than one element – where one of the elements is carbon. They are described as volatile because they evaporate easily, releasing molecules into the atmosphere. VOCs ...


    By Ion Science Ltd.

  • Simulating accumulation of biofilms in biotrickling filter

    Accumulations and spatial and dynamic variations of biofilms in the media of a biotrickling filter were simulated using mathematical models for Volatile Organic Compound (VOC) removal. Toluene was selected as the model VOC. Effects of toluene concentration and gas Empty Bed Contact Time (EBCT) on VOC removal were also investigated. Results showed that biofilm thickness increased with increased ...


    By Inderscience Publishers

  • The impact of human motion on TVOCs distribution for three ventilation modes

    The study objectives of this paper are to investigate the influence of human motion and three different ventilation modes on indoor environment, Total Volatile Organic Compounds (TVOCs) dose and Contribution Ratio of Pollution (CRP) source index. According to the simulation results, human motion acts as the disturbance, has a noticeable effect on indoor environment including velocity, temperature ...


    By Inderscience Publishers

  • Evaluating Food Products for Furan and Other Volatile Organic Compounds

    Abstract The US Food and Drug Administration (FDA) published the results of a survey of furan in canned and jarred foods that undergo heat treatment in 2004. In the same year, the European Food Safety Authority agreed with the findings of the FDA report and determined that more research was needed on the study of furan in food. One of the techniques used by the FDA for furan in ...


    By Teledyne Tekmar

  • Analysis of Volatile Organic Compounds in Different Beverages

    Abstract Volatile Organic Compounds (VOCs) have been a major concern of the U.S. Environmental Protection Agency (USEPA) leading strict regulations of VOCs present in drinking water. This study will focus on the amount of VOCs present in commercially available beverages. The analysis will utilize the Atomx, an automated VOCs sample prep system with an in-vial purge, in conjunction with gas ...


    By Teledyne Tekmar

  • Potential use of Syntrichia ruralis for monitoring atmospheric BTEX

    Many studies deal with the bioaccumulation of metals in mosses. In contrast, the knowledge about organic pollutants is less extensive and there is a relative lack of studies using plants for the biomonitoring of volatile organic compounds such as Benzene, Toluene, Ethylbenzene and Xylenes (BTEX). Both in situ and in controlled conditions, this study deals with the capacity of mosses to accumulate ...


    By Inderscience Publishers

  • Environmental innovation and clean technology: an evolutionary framework

    This paper provides a framework for the analysis of clean technology which covers the factors inducing, stimulating and constraining environmental innovations of firms. Such a framework relies on recent empirical and theoretical contributions to environmental innovations. The representation of clean technology draws from several industrial case studies on the reduction of the emissions of ...


    By Inderscience Publishers

  • Volatile Organic Compounds in Every Day Food

    Abstract Volatile Organic Compounds (VOCs) have been analyzed in drinking water and pharmaceuticals extensively in recent years. Now, VOCs in food products have became a major interest among researchers. Utilizing an Atomx automated VOC sample prep system in conjunction with a gas chromatograph-mass spectrometer (GC/MS) will allow for the determination of VOCs in food products. The automated ...


    By Teledyne Tekmar

  • Biofiltration of hydrophobic VOCs pretreated with UV photolysis and photocatalysis

    The effects of pretreatments on the biofiltration of gas phase α-pinene, a poorly water soluble Volatile Organic Compound (VOC), was evaluated in a controlled and long-term experimental investigation. Ultraviolet (UV) photolysis and photocatalysis were used and compared as pretreatment techniques. A control experiment involving biofiltration alone allowed for the direct evaluation of the coupled ...


    By Inderscience Publishers

  • Achieving ppt Levels of environmental volatiles with a new Headspace Sampler

    Introduction This study focuses on the Versa Automated Headspace Analyzer and its ability to analyze Volatile Organic Compounds (VOCs) in water at the part per trillion (ppt) level. Read the full article Click ...


    By Teledyne Tekmar

  • Volatile organic compounds emitted from hardwood drying as a function of processing parameters

    During the drying of wood, volatile organic compounds are emitted. These emissions contribute, in the presence of nitrogen oxides and sunlight, to the formation of ground level ozone and other harmful photo-oxidants. Emissions of volatile organic compounds from the drying of birch sawdust in a spouted bed were analyzed with a flame ionization detector and with a gas chromatograph-mass ...

  • Tecam Group Equipment Supply for VOC Emissions Treatment to Witte y Solá in Spain

    Tecam Group, engineering, assembly and installation company providing environmental technology solutions for the Industry, has signed a commercial agreement with Witte y Solá, manufacturer of compressible tubes packaging, for the supply of a unit to treat Volatile Organic Compounds VOC emissions generated during their production process. Under the terms of the agreement, Tecam Group will ...


    By TECAM

  • A Comparison of Volatile Organic Compound Response When Using Nitrogen as a Purge Gas

    Abstract For many years Helium has been the gas of choice for purging Volatile Organic Compounds (VOCs). However, in the past few years, the price and demand for helium gas has increased substantially, thus making the use of Helium for the purge gas in Purge and Trap (P&T) very expensive. The expense of Helium has provoked interest in finding a viable alternative purge gas. This ...


    By Teledyne Tekmar

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