gas phase filtration Articles

  • Technical Resources for Gas-Phase Air Filtration

    Gas-phase air filtration is a highly specialized branch of air filtration with a very short list of reputable and knowledgeable companies manufacturing the dry-scrubbing media, filters, and systems in which they are employed. The list becomes even shorter when considering where to go for the ...


    By Purafil, Inc.

  • Purification of inkjet ink from water using liquid phase, electric discharge polymerization and cellulosic membrane filtration

    A method to separate inkjet ink from water was developed using a liquid phase, electric discharge process. The liquid phase, electric discharge process with filtration or sedimentation was shown to remove 97% of inkjet ink from solutions containing between 0.1–0.8 g/L and was consistent over a range of treatment conditions. Additionally, particle size analysis of treated allyl ...


    By IWA Publishing

  • Peristaltic pumps for moving filtration water

    The Eversburg sewage treatment plant is designed to serve 250,000 population equivalents and is one of three plants operated by the city of Osnabrück in northern Germany. But in 2005, its actual load was closer to 309,000 population equivalents (COD 80 mg/l), pushing the nitrogen input level above the plant's capabilities. To deal with this situation, engineer Peter Sikora organized a team ...


    By ALLWEILER GmbH

  • Salt of the Earth - brine filtration & solids removal

    Salt domes along the Texas and Louisiana coastline make ideal gas and oil storage facilities and they play a major role in the Unites States strategic energy reserves. A division of a large company involved in the transportation, storage, terminalling and marketing of crude oil, refined products and LPG, was constructing three 8 billion cubic foot gas storage facilities in Louisiana with ...


    By CETCO Energy Services

  • Dispersed Phase Inertisation (DPI): A New Technology for the Treatment of Landfill Leachate and Complex Water

    Inertisation is thus far the only technology for the conversion of leachate and contaminated water into an inert product, thereby facilitating handling and disposal in MSW landfills. Introduction One of the most complex aspects of the global management of an MSW landfill or treatment plant is leachate. This liquid comes mainly from the degradation of organic matter, added to other ...


    By Energy & Waste S.l

  • Automated method for determination of dissolved organic carbon – water distribution constants of structurally diverse pollutants using pre‐equilibrium solid phase microextraction

    Dissolved organic carbon (DOC) plays a key role in determining the environmental fate of semi‐volatile organic environmental contaminants. The goal of the present work was to develop a method using commercially available hardware to rapidly characterize the sorption properties of DOC in water samples. The resulting method uses negligible‐depletion direct immersion solid‐phase microextraction ...


    By John Wiley & Sons, Ltd.

  • Electrochemical Exhaust Gas Purification - SAE technical paper series

    This text is divided into Iwo parts; the first part gives a short recapitulation 01 the development status 01 the eiectrochemical reactor lor soot removal, while the second part gives a description 01 activities on electrochemical NOx reduction. The Electrochemical Reactor lor filtration and continuous combustion 01 soot lrom diesel exhaust gas has been described earlier [1, 2]. The reactor size ...


    By Dinex A/S

  • Proficiency test of non-target screening with gas chromatography mass spectrometry to confirm a detected contamination of raw and drinking water

    Much of the water supply industry has implemented online monitoring and warning systems for chemical or biological contaminations. When a contamination is detected, further investigations are necessary to confirm or to cancel the initial alarm. The proficiency of a non-target screening approach with solid phase extraction and GCMS in full-scan mode was examined. A selection of pesticides and ...


    By IWA Publishing

  • TB 10: Baltimore Gas and Electric-Uses Liqui-Cel® Deoxygenators in Nuclear Power Plant

    Liqui-Cel Membrane Contactors from Hoechst Celanese Corporation are being used to deoxygenate the high purity makeup water at BG&E Calvert Cliffs Nuclear Plant in Lusby MD. Ecolochem, Inc., headquartered in Norfolk Virginia, designed, built, and now maintains the make-up water treatment system under a service contract. Ecolochem specializes in water treatment ...

  • SVE and Air Sparging

    Stage 1: The system is a PLC controlled plant equipped with telemetry. Rotary Lobe blowers were used to abstract vapour contaminated with chlorinated hydrocarbons and a similar high pressure blower was used to inject air via solenoid valves individually controlled by the PLC. Extracted vapour was treated in large GRS 2 tonne vapour-phase activated carbon vessels.Stage 2: The system comprised ...


  • TB 38: Chemical-free membrane degassing in pharmaceutical plants

    Technology for the Removal of Dissolved GasesIn treating water for the production of pharmaceuticals, the concentration of gases dissolved in the water plays an important role. In many cases the CO2 content in the raw water has to be further reduced to obtain purified water with a conductivity of < 1.3 μS/cm (at a temperature of 25°C). membrane degasification system downstream of the RO ...

  • Case study - Mazzei degas separator selected for Wichita aquifer storage and recovery project

    GDT Degas Separator Selected As Best Method For Entrained Gas Bubbles Removal Wichita, KS The Problem: In the 1990s, the City of Wichita, Kansas developed a water supply plan that included creating a sustainable water supply through the year 2050. The key component of the plan is recharging the large aquifer that lies under the region with 100 MGD of water from the ...

  • Occurrence and environmental risk assessment of PAEs in Weihe River near Xi'an City, China

    The occurrence and distribution of phthalate acid esters (PAEs) in surface water of the Weihe River basin (eight mainstream sampling points and 15 tributary sampling points) in the Shaanxi section were investigated during the dry season, level period (spring), wet season and level period (autumn). The PAEs tested for were diethyl phthalate (DEP), di-n-butyl phthalate (DBP), dicyclohexyl ...


    By IWA Publishing

  • What is slip-flow and how does it affect filter performance?

    Recent scientific interest in nanofibers have many people exploring their use in filter media.  One of the advantages of nanofibers for gas phase depth filtration is the slip-flow phenomena.  The purpose of this article is to describe what is meant by the slip-flow phenomena and how it applies to filtration. Suppose you have a hypothetical camera that can take an instant snapshot of the ...

  • Transformer oil quality control

    It is impossible to ensure reliability and longevity of energy systems without controlling the quality of transformer oil. Recent experience shows that approximately 30% of transformer oil, filled in power transformers, has deteriorated to the point when it becomes a risk factor. This is caused both to natural degradation of oil in operation due to thermal oxidation aging, and contamination with ...


    By GlobeCore GmbH

  • Application Data for Dry-Scrubbing Media in Collection Systems

    Abstract Dry-scrubbing systems have been used for many years to control odors in wastewater applications. The systems have ranged in size from larger multiple bed scrubbers for force mains and large pump station applications to smaller single bed systems and modular systems in small wet wells, motor control centers, and other areas. Two reasons for their continued use are simplicity of ...


    By Dimtech S.A

  • TB 59: Optimized deaeration system for Paulaner Brewery

    The Centec DGS System is a modular, water deaeration process that uses hydrophobic Hollow Fiber Membrane to remove dissolved gasses from liquids in the beverage industry. This technical brief covers the unit’s design, operation and resulting reduction of energy consumption costs. Gas transfer starts with the basic principle that the concentration of dissolved gasses in water is proportional to ...

  • Vapor Intrusion Issues Risk Occupants’ Health

    Vapor intrusion occurs when a gaseous substance migrates into a building.  For example, volatile organic compounds and other gases can migrate from contaminated soils and groundwater through cracks in foundations or sewer lines and enter a building.  Vapor intrusion can create an indoor environment that damages structural materials and puts building occupants’ health at ...


    By Ultraviolet Devices, Inc.

  • What is Activated Carbon?

    Adsorption with activated carbon can apply. The more awareness people have of the Earth, the more applications activated carbons will have. is thus a commonly seen process in applications such as gas masks, space capsules, nuclear plants and so forth, in which the removal of gases is highly needed. ...


    By Cocarb

  • From fermentation residues to nutrient concentrate

    The growing number of bio-gas plants makes it in-creasingly difficult to return the fermentation residue substrates to green spaces or arable land. Especially large-scale plants are often unable to find sufficient disposal possibilities in acceptable distances. Therefore it is sensible to treat fermentation residue substrates by suitable screening processes in such a way that they can be ...


    By atech innovations gmbh

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