Gas Filtration Articles

  • Case study - Procurement and installation of a Biogas desulphurization unit at the Chania WWTP

    A proposal based on Bioconservacion’s technology was selected as the winning bid in the public tender released in 2015, covering the design, procurement and construction of a biogas desulfurizing unit to be installed in the waste water treatment plant in Chania, Greece. With a population over 100,000, Chania is the second largest municipality in the Greek island of Crete. Its waste water ...


    By Bioconservacion SA

  • How can you measure Peracetic Acid separately from Hydrogen peroxide, Isn’t there hydrogen peroxide in PAA?

    We receive questions of this sort frequently and the questioner is partly right. Peracetic acid (PAA) is formed in an equilibrium mixture with hydrogen peroxide and acetic acid, so in a mixture of PAA, hydrogen peroxide and acetic acid, PAA is being continually formed by the reaction of hydrogen peroxide and acetic acid, and peracetic acid is continually breaking down to reform hydrogen peroxide ...


    By ChemDAQ, Inc.

  • Chlorine removal with KDF 55 - Case Study

    KDF 55 Process Medium Helps with Removing Chlorine in a Municipal Water Treatment Facility A Los Angeles-based maker of fashion jeans uses KDF media instead of chemicals for removing chlorine when treating municipal water in their stone-washing process. High-purity copper-zinc redox water filter media consistently provides 99% of free chlorine removal from water by ...


    By KDF Fluid Treatment, Inc.

  • WESPS continue to deliver

    Compliance with the increasingly stringent air pollution regulations of recent years is not the only reason forwardthinking industry leaders are adopting more sophisticated gas cleaning and air pollution control strategies. The desire to achieve higher performance efficiencies, control costs in a competitive marketplace, and stay ahead of the regulatory compliance curve is another driver of ...


    By Beltran Technologies, Inc.

  • Treatment of petrochemical secondary effluent by an up-flow biological aerated filter (BAF)

    In this study, petrochemical secondary effluent was treated by a 55 cm diameter pilot-scale biological aerated filter (BAF) with a media depth of 220 cm. Volcanic rock grains were filled as the BAF media. Median removal efficiency of chemical oxygen demand (COD) and ammonia nitrogen (NH3-N) was 29.35 and 57.98%, respectively. Moreover, the removal profile of the COD, NH3-N, total ...


    By IWA Publishing

  • Filtralite in Vestfjorden Sewage Plant (Veas) - Case Study

    In Norway’s largest sewage plant, Veas in Oslo, Filtralite* has proven extremely durable as both bio substrate and sludge filtering medium. After 25 years of operation with daily back flushing there is no need for replenishing. A river of sewage of maximum 11 m3 second runs in a 42 kilometre underground tunnel, collecting sewage from Oslo centre to Slemmestad in ...

  • Case study - Biogas desulphurisation at the Chania WWTP

    In partnership with Greek engineering firm DIMTECH, Bioconservacion is conducting a biogas desulphurisation project that aims to drive the harnessing of energy from the digestion of slurry at the WWTP in Chania - the plant where wastewater is treated within a semi-arid zone of Crete, located near residential areas. This facility will be going into operation soon and will use the Bi-On Fe ...


    By Bioconservacion SA

  • Case study: Ahlstrom’s gas turbine air intake filter media helps to save energy, CO₂ and cost

    Finding new methods for saving energy is a global megatrend. Implementing technology that saves energy will have a positive impact on sustainability. Gas turbines are widely used for energy production as natural gas is one of the cleanest burning fuels and nowadays even more interesting source of energy. One of the most important parts in a gas turbine is the blade section, which converts the ...


    By Ahlstrom Corporation

  • What are the Top 10 Sustainability Technologies Crucial to Sustain Life on Earth

    Clean and green environment (CGE) technologies have taken center stage with rising water scarcity, energy depletion, and global warming threatening the Earth’s ability to nurture life. A concerted move toward sustainability, especially with regard to water-efficient technologies, is vital for future survival. Recent analysis from Frost & Sullivan,  ...


    By GLOBE Foundation

  • A Layman`s Guide to Inorganic and Organic Contaminant Removal by Standard Filtration Methods

    Plant operators, maintenance engineers and mechanics, specifying engineers, installation technicians, and others involved in inorganic and organic contaminant removal are oftentimes called upon to choose and apply filtration solutions. To best make these decisions, it is helpful to review information and updated insight on basic filtration technologies, along with their advantages and ...


    By Shelco Filters

  • Process water - oil/gas industry application case studies

    Challenge An large oil processing company wanted to reuse their process water. The water contained hydrocarbons, sulfate, TSS, BOD/COD, dissolved salts and high levels of iron. Solution Genesis Water Technologies provided consulting and engineering design as well as providing the specified system solution. The system solution included advanced oxidation, ...

  • Performance and mechanism of anaerobic biotrickling filter for removal of sulfite, sulfate, and hydrosulfite

    A biotrickling filter (BTF) was designed for removal of sulfite (SO32−), sulfate (SO42−), and hydrosulfite (HSO−3) produced from flue gas adsorbent during dual-alkali flue gas desulfurization. With an SO32− concentration of 0.89 g-S/(L packing), BTF could completely remove SO32− within 3 h with an ...


    By IWA Publishing

  • Desulfurization performance of biotrickling filter on the removal of flue gas adsorbent produced by dual-alkali flue gas desulfurization process

    A biotrickling filter (BTF) was used to investigate the elimination of flue gas adsorbent containing sulfite, sulfate, and hydrosulfate; it was undertaken to replace the regeneration step of dual-alkali flue gas desulfurization. Sulfate-reducing bacteria (SRB) isolated from landfill leachate were inoculated, and overall desulfurization performance as well as impact resistance was evaluated. The ...


    By IWA Publishing

  • Recycling Using Antifreeze with Electrodionization

    Recycling used antifreeze makes sense for two reasons: 1) It is cost-effective, and 2) It saves resources. Ethylene glycol, the primary active ingredient in antifreeze, is produced from natural gas, which is a finite, non-renewable resource. For businesses that use a lot of antifreeze, like automobile repair shops, setting up an antifreeze recycling program can significantly reduce management ...


  • Chlorine Dioxide gas detection: A comprehensive guide

    Introduction Some years agoago, the bleaching process in the paper industry was changed from using Chlorine (Cl2) as bleaching agent to Chlorine dioxide (ClO2). This was a challenge forThis posed a major challenge to industrial hygienists, as there were no sensors or detectors available that were specific to Chlorine dioxide: There was no sensor technology for gas detectors available that ...

  • Executing Regular, Preventive Maintenance of your Gas Furnace

    Your gas heating system was designed to go on for several years, and you can significantly extend that time by executing regular, preventive maintenance. The following suggestions will allow you to maintain your furnace working efficiently for as long as possible, and limit costly fixes in the future. Run it safely Prior to beginning any repair work, be sure that circumstances ...


    By Primo Heat Inc

  • Helium gas for nuclear reactors case study

    Application Moisture is measured in helium gas used for nuclear reactors. The helium is used as a reactor coolant because of its excellent thermal properties and chemical inertness. Problem If the helium becomes contaminated with moisture, it will cause both degradation of graphite rods and an undesired change in the process's heat balance. At worst, a ...

  • BioLargo`s AOS Filter Wins `Technology Star Award` - New Technology Magazine -The First Word on Oil Patch Innovation

    Advanced disinfectant technology developer sets sights on oil and gas applications A small publicly-listed Santa Ana, Calif.–based company that is developing water purification and advanced disinfectant technologies, all using some form of iodine, sees one of its Edmonton-developed technologies as a way to clean up and even eliminate oilsands mining tailings ...


    By Biolargo, Inc.

  • Hong Kong Hospital Authority selects IQAir filtration systems for the fight against SARS

    In February of 2003, newspapers began reporting a rapidly spreading atypical pneumonia. Now identified as severe acute respiratory syndrome or SARS, this highly contagious condition is caused by a new coronavirus for which there is no specific antiviral treatment. While the epicentre of the outbreak was China, the disease spread quickly across Asia and to North America (especially Canada) with a ...


    By Commercial Air Filtration

  • Deposit membrane fouling: influence of specific cake layer resistance and tangential shear stresses

    Cake fouling is the leading cause of membrane permeability decrease when filtering mixed liquor suspension containing high suspended solid concentrations. A simple model is proposed to simulate the cake resistance evolution with time by considering a macro-scale fouling linked only to the accumulation of particles on the membrane surface. This accumulation appears as the difference between the ...


    By IWA Publishing

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