voc concentrator Articles

  • An assessment of urban VOC emissions and concentrations by comparing model results and measurements

    From September 1994 to June 1996, the city of Antwerp carried out a volatile organic compound (VOC) measurement campaign in the urban agglomeration of Antwerp. The results were used to further validate a traffic emission model for the city of Antwerp and to evaluate the performance of three different "street canyon" models that were applied to calculate benzene concentrations at ten ...


    By Inderscience Publishers

  • Evaluation of Spatial and Temporal Variability in VOC Concentrations at Vapor Intrusion Investigation Sites

    ABSTRACT As vapor intrusion has become an increasing concern at corrective action sites, the USEPA and a number of state regulatory agencies have recently issued guidance documents covering the collection of subsurface gas, and above-ground air samples during vapor intrusion investigations. Most of these guidance documents do not provide specific recommendations concerning the number of each ...


  • VOC Oxidizers: Where to begin?

    If you are wanting to solve a VOC (volatile organic compound) air pollution problem, how do you begin?  What type of solution is best suited for the application?  What are the various types of thermal oxidizers and how do they differ in design? RTO, Recuperative TO, Direct fired TO, carbon systems, or concentrators -- which should be used for an application in a chemical plant, refinery, an ...


    By Nacah Tech LLC

  • VOC`s oxidation

    Real Decreto 117/2003, dated 31st January related to Volatile Organic Compounds emission limits, due to organic solvents, as well as Law 16/2002, dated 1st July, related to prevention and integrated control of pollution (IPPC), came into force, which will impel many industries to set devices for the treatment and elimination of gases effluents with different organic compounds content. Here, we ...


    By Kalfrisa, S.A.

  • Properties and Behavior of Halogenated VOCs

    An important consideration when evaluating a remedy is whether the compound is halogenated or nonhalogenated. A halogenated compound is one onto which a halogen (e.g., fluorine, chlorine, bromine, or iodine) has been attached. The nature of the halogen bond and the halogen itself can significantly affect performance of a technology or require more extensive treatment than for nonhalogenated ...

  • Reducing Odor and VOC Emissions

    The Montgomery County Regional Composting Facility (MCRCF) in Silver Spring, Maryland is designed to process 400 wet tons/day of lime amended biosolids from the Blue Plains Wastewater Treatment Plant (WWTP) in Washington, D.C. Recently, political pressures forced operations to cease at the MCRCF. Although the aerated static pile composting plant’s fate has not been completely decided, its owner, ...


    By BioCycle Magazine

  • For VOC emissions treatment: Regenerative Thermal Oxidizer + Zeolite rotor-concentrator - Case Study

    Case Study: “Heceygo Project” EXHAUST AIR TREATMENT REGENERATIVE THERMAL OXIDIZER FOR VOC EMISSIONS TREATMENT ZEOLITE ROTOR-CONCENTRATOR + REGENERATIVE THERMAL OXIDIZER  The Technical Solution For Large Air Flows With Low Solvent Concentrations   PROJECT MAIN DATA: CUSTOMER NAME: Heceygo PROJECT SIZE: ...


    By Tecam Group

  • Properties and Behavior of Nonhalogenated VOC`s

    An important consideration when evaluating a remedy is whether the compound is nonhalogenated or halogenated. A nonhalogenated compound is one which does not have a halogen (e.g., fluorine, chlorine, bromine, or iodine) attached to it. The vendor of the technology being evaluated must be informed whether the compounds to be treated are nonhalogenated or halogenated. In most instances, the vendor ...

  • Common Treatment Technologies for Nonhalogenated VOCs

    Soil vapor extraction (SVE), thermal desorption, and incineration are the presumptive remedies for Superfund sites with nonhalogenated VOC-contaminated soil. Because a presumptive remedy is a technology that EPA believes, based upon its past experience, generally will be the most appropriate remedy for a specified type of site, the presumptive remedy approach will accelerate site-specific ...

  • Common Treatment Train for Halogenated VOCs

    In general, no single technology can remediate an entire site. Several treatment technologies are usually combined at a single site to form what is known as a treatment train. A system diagram of a common treatment train for halogenated VOCs is illustrated below. A ground water pumping system is used to pull contaminated water from the subsurface. The VOC contaminated water is pumped to a liquid ...

  • VOC Remediation Using HRC at Navy Base

    Site Summary Site investigations at a Naval Base in Long Beach, California revealed high contaminant levels of volatile organic compounds (VOCs) from a dry cleaning operation. In well MW-14-S4, the contamination levels of DCE, TCE and PCE reached 4,100 μg/L, 4,000μg/L, and 6,500 μg/L, respectively. The land use in this vicinity was primarily industrial and operations ceased by ...


    By REGENESIS

  • VOCs Reduces Below Federal MCLs using HRC

    Summary Subsurface investigations at a dry cleaning facility revealed elevated levels of PCE and other regulated daughter products. HRC injection was chosen to accelerate the degradation of the entire range of VOCs. HRC slowly releases hydrogen, enhancing reductive dechlorination in an anaerobic environment. Additionally, HRC Primer, a less viscous version of HRC, was also used to reduce ...


    By REGENESIS

  • Landfill Leachate Containing VOCs, BNAs, and Phenolic

    Southwest, USA AQUAMEND™ performance has been validated on landfill leachate containing a wide variety of volatile organics, base neutral acid extractable (BNA) compounds, and phenolics. The target compounds included methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), and acetone. These compounds have traditionally been difficult or expensive to remove from wastewater using existing ...


  • Minimizing Operating Costs in VOC Abatement Equipment

    Untitled Document As governmental regulations of environmental emissions become more restrictive, the average concentration of Volatile Organic Compounds (VOC's) has decreased as more ...

  • Biofilter Removal of VOCs and Toxics from Airborne Emissions

    Abstract Sewage treatment plants can emit significant quantities of volatile organic compounds (VOCs) and toxic air contaminants, but emission control by conventional methods has been difficult to achieve. The biofilter technology developed in a previous contract can satisfactorily control emissions from these plants and possibly from other sources of high-volume, low-concentration emissions ...


  • Potential of biofiltration for VOCs emission control and safety aspects

    Directive 99/13/EC on the emission of Volatile Organic Compounds (VOCs) is impacting on several industries in Italy, as well in other EU countries. Many small enterprises have to invest in new control systems and need to be helped to choose an appropriate and safe technology. As VOCs are highly flammable compounds, high concentrations in emission flows can pose a fire and explosion hazard if ...


    By Inderscience Publishers

  • 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

  • Biofiltration of VOCs for Paint Manufacturing and Coatings Applications

    Biofilters, long used in Europe for odour control because of low maintenance, energy and operating costs have had a difficult time penetrating the US. The energy crisis and the cry for sustainable technologies have created interest in pollution control devices that reduce emissions and are energy efficient. This paper will discuss technical performance, design factors and economics of a ...


  • Demonstration of Resin Adsorption Techology for Treatment of VOCs in Groundwater

    Untitled Document ABSTRACT Aberdeen Proving Ground (APG) has been a center for the development, testing, and manufacture of military-related chemicals since World War I, ...


    By Weston Solutions, Inc

  • High VOC Loadings in Biofilters - Petroleum and Industrial Applications

    ABSTRACTMore cost effective alternate technologies are needed to meet the demands of existing and upcoming Federal air regulations. Bio-Reaction Industries, Inc. (BRI) has developed a patented, modular, high-rate, vapor-phase biofilter that has provided such a solution for a major oil company for the past four years. This compact system has adsorbed and digested high VOC surge concentrations ...


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