air treatment Articles

  • Air Emissions/Off-Gas Treatment

    A number of technologies have been widely applied for removal of VOCs from off-gas streams. However, the application of these technologies to off-gases from site remediation may be quite limited. Biofiltration has been widely applied for VOC destruction in Europe and Japan, but it has only recently been used in the United States. Catalytic and thermal oxidation are widely used for the destruction ...

  • Treatment and Disposal of Air Pollution Control Residue

    What is APCr? Thermal waste management using Energy Recovery Facilities (ERFs) is now a well-managed and mature technology that is subject to environmental monitoring by a range of competent international bodies. These ERFs have been established as a means of diverting waste away from landfill disposal and for valorising the material and energy content of the waste. Counter to historic ...

  • Treatment of hydraulic fracturing wastewater by wet air oxidation

    Wastewater produced by hydraulic fracturing for oil and gas production is characterized by high salinity and high chemical oxygen demand (COD). We applied a combination of flocculation and wet air oxidation technology to optimize the reduction of COD in the treatment of hydraulic fracturing wastewater. The experiments used different values of flocculant, coagulant, and oxidizing agent added to ...


    By IWA Publishing

  • Istilah pada Pengolahan Air Atau Water Treatment

    Water Treatment atau waste water treatment merupakan industri yang bergerak dibidang pengolahan air dari air baku atau tidak layak pakai menjadi air bersih layak pakai sesuai standar yang ada. berbagai istilah dalam water treatment tersebut membuat beberapa orang kebingungan tentang istilah tersebut dikarenakan jarangnya ditemui di kehidupan sehari. berikut beberapa ...


    By Grinviro Biotekno Indonesia

  • Biotreatment of polluted air from a sludge treatment building in a BTF

    The problem Additionally to the basic level of pollution with malodorous pollutants, polluted air from a building with sludge presses showed temporarly extreme VOC-peak-loadings up to 1800 to 2000 mg/m³. Solution of the problem By a subsequent treatment in a two-step bio-trickling filter supported by LEVAPOR carrier for immobilisation of microorganisms, over 90% ...

  • Using Air Strippers for Off-gas Treatment - Case Study

    Two pharmaceutical plants in Puerto Rico used large sequencing batch reactor (SBR) systems to treat their wastewater. The primary treatment was an aerobic bio breakdown of the waste. The were forced to change their treament process because of change in treatment regulations. The new regulations required them to treat off-gas that was coming from the SBRs. They were faced with installing a very ...

  • Land Treatment

    Introduction Land Treatment is a full-scale bioremediation technology in which contaminated soils, sediments, or sludges are turned over (i.e., tilled) and allowed to interact with the soil and climate at the site. The waste, soil, climate, and biological activity interact dynamically as a system to degrade, transform, and immobilize waste constitutes. Wastes are periodically tilled to aerate the ...

  • Biofiltration Treatment of α-Pinene

    This paper provides an overview of air biofiltration with experimental data on the performance of a synthetic media biofilter system. It is shown that use of high surface area per unit volume structured media results in higher contaminant treatment rates per unit biofilter volume. It is shown that use of specially designed synthetic media allows effective control of biomass buildup by continuous ...


    By PRD Tech, Inc.

  • Common Treatment Technologies for Nonhalogenated VOCs in Air Emissions/Off-Gases

    Three technologies that are most commonly used to treat nonhalogenated VOCs in air emissions/off-gases are carbon adsorption, catalytic oxidation, and thermal oxidation. Carbon adsorption is a remediation technology in which pollutants are removed from air by physical adsorption onto the carbon grain. Carbon is 'activated' for this purpose by processing the carbon to create porous particles with ...

  • Dissolved-air flotation associated with an anaerobic reactor, as applied to sewage treatment

    This paper presents the results of a study performed with a pilot sewage treatment plant consisting of an aerobic reactor followed by a flotation unit. To coagulate the anaerobic effluent, different ferric chloride dosages were applied by adopting two approaches: applying constant dosages during the essay and varying the dosages according to the anaerobic effluent turbidity. To obtain more than ...


    By Inderscience Publishers

  • Common Treatment Technologies for Halogenated VOCs in Air Emissions/ Off-Gases

    Three technologies that are most commonly used to treat halogenated VOCs in air emissions/off-gases are carbon adsorption, catalytic oxidation, and thermal oxidation. Carbon adsorption is a remediation technology in which pollutants are removed from air by physical adsorption onto the carbon grain. Carbon is 'activated' for this purpose by processing the carbon to create porous particles with a ...

  • Desalination membrane water treatment system for Lajes US Air Force

    GEA designed and provided a Desalination Membrane Water Treatment System for the US Air Force Lajes Field Water Treatment Plant, located in the Azores. The Membrane System capacity is 1.1 MGD (4.2 million m³/day) and consists of twenty (20) 8-inch diameter pressure vessels arranged with 14 pressure vessels in the first pass followed by six pressure vessels in the second pass. There are 120 ...


    By GEA Engineering PC

  • Wastewater-Primary Treatment

    Primary Treatment is defined as a wastewater treatment process that takes place in a rectangular or circular tank and allows those substances in wastewater that readily settle or float to be separated from the water being treated. This process achieves solids separation. The solids readily available to settle to achieve sedimentation will do so in a settling tank referred as a clarifier. On the ...

  • Air pollution and odour control treatment plant of contaminated air during industrial drums and package remediation process

    Customer EuroVeneta Fusti srl is an italian market leader in industrial drums and package recovery, remediation and reuse. Sited in Triveneto, in Mira next to Venice, EuroVeneta Fusti operates old drums collection, processing, regeneration and new ratification of industrial packages (such as ...


    By F.G.M. engineering srl

  • Industrial Sludge Treatment

    Industrial Sludge Wastewater Treatment Industrial Sludge Treatment Facility Oxygen Mixing Injection Dissolved Oxygen Boosted with Liquid Oxygen to Improve ...


    By Integrated Engineers Inc.

  • Venting your Sewage Treatment System

    The venting for the BIOROCK Sewage Treatment System is probably the key point of the system. The venting is specific to your site; again, why we emphasize the service of a certified recommended installer to install the BIOROCK Sewage Treatment Plant correctly. BIOROCK Venting Guidelines However, there are some simple tricks to follow in order that the continuous draft of air necessary to ...


    By BIOROCK S.à.r.l

  • Monitoring and Treatment of Selected Nanoparticles

    With their increasing use, nanoparticles will become concentrated in urban effluents in the future. Both adequate monitoring methods and water treatment technologies will be necessary to assess and avoid consumer exposure. This paper reports results in these two challenging areas for both organic and inorganic nanoparticles. Treatment experiments indicate that lamellar settling is better adapted ...


    By IWA Publishing

  • UV Light Treatment for HVAC Systems

    Ultraviolet (UV) light can be applied to support numerous applications in a broad range of industries. In commercial paint spray booths and label manufacturing plants, UV lamps are used to streamline paint jobs and the printing of logos. Outside of such practices, the light source may also be utilized to eradicate harmful, disease-causing bacteria. Systems that rely on the light’s ability ...


    By Larson Electronics LLC

  • Ten Commandments of TSS Treatment

    Wastewater managers and operators are tasked with the goal of removing as much Toatl Suspended Solids or TSS as possible from the wastewater stream at lowest possible cost.  This removal may be necessary to meet regulatory requirements or simply cost avoidance.  Whatever the case may be there are 10 steps that can be taken to assure the maximum performance possible by a dissolved air ...

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