Particulate Filtration Articles

  • HeatBlocker CoolWrap Exhaust Insulation on a Mobile Crane for the Construction Industry - Case Study

    The temperatures of exhaust streams from diesel-powered construction equipment are often elevated to ensure effective operation of diesel particulate filters, in which collected soot is combusted. As a result, these exhaust systems can become extremely hot, endangering operating personnel and potentially elevating heat deterioration of nearby engine components. This was the problem presented to ...


    By Kalb Corporation

  • Case study - OTMS Boxed Beef Incinerator (UK)

    Over Thirty Month Scheme (OTMS) 'Boxed Beef' incinerator. This installation involved replacement of a 3-metre ceramic element filter that suffered constant element breakages and inadequate SO2 removal due to a poorly designed filter and powder injection system. The client appointed W.S. Atkins to source a filter which had high efficiency particulate removal and effective dry ...


    By Glosfume

  • Diesel Particulate Filters in the City of London - Case Study

    The catalysed wall flow soot filter was designed and installed in the fourth quarter of 2008 to treat the Particulate Matter (PM), Volatile Organic Compounds (VOCs) & Carbon Monoxide (CO) in the exhaust gases from the outlet of an MTU 12V000G23E emergency generator installed in the basement in the financial district London EC2R. AirProtekt Catalysed Wallflow Particulate Filter is a system ...


    By AirProtekt Limited

  • Emulsified Oil Injection: Is smaller always better?

    Many professionals assume that the smallest oil droplets will transport the farthest during subsurface substrate injection.  However, this is not always true.  Water treatment engineers have studied particle (and droplet) removal in sand filters for decades.  They have learned that particle removal is a function of the frequency of particle-sand grain collisions and the probability ...


    By EOS Remediation, LLC

  • How to Choose the Right Commercial Air Filter

    When it comes to selecting a commercial air filter, or air filtration system, there are many variables that have to be considered. In general, the choice of which air filter can be made a bit easier by first defining the overall goal that you are trying to achieve which is usually one of two options. Is the purpose of the filter to protect the air circulation equipment, or is it to provide a ...


    By Camfil Ltd

  • Attachment behaviour of inorganic particles on fibrous media: combined effects of dissolved organics and divalent cations

    A systematic study was carried out to investigate the attachment of inorganic particles to fabric media in the presence of divalent cations and the dissolved organics in water, on filter media, or on both. The presence of organics (humic acid, HA) reduced the attachment of inorganic particles on the fabric. Specific attachment trends were observed for the inorganic particles–fibre system. ...


    By IWA Publishing

  • Particle deposition and mobilisation during deep bed filtration in oilfields

    Deposition of latex microspheres on a borosilicate filter was carried out at gradually decreasing suspension velocities at conditions favourable for particle attachment and excluding particle retention due to size exclusion. Particle critical retention concentration followed quadratic function of suspension velocity agreeing with the modified particle attachment/detachment model based on ...


    By Inderscience Publishers

  • High-speed filtration using highly porous fiber media for advanced and compact particle removal

    Since its recent introduction to the filtration industry, one of the major concerns about the use of fiber in water treatment has been its applicability for high-rate filtration while minimizing the build-up of headloss. In this study, a compact, modular filter employing non-woven, highly porous polypropylene fiber as filter media was investigated for the treatment of turbid water under high ...


    By IWA Publishing

  • Effect of selective organic fractions on denitrification rates using Salsnes Filter as primary treatment

    The purpose of this project was to investigate the effect of selective particle removal during primary treatment on downstream biological nutrient removal processes. Bench-scale Salsnes Filter fine mesh sieves were used as a primary treatment to obtain different organic fractions to test the effect on denitrification. Activated sludge and moving bed biofilm reactor anoxic tests were performed on ...


    By IWA Publishing

  • BA-C500S11 Highly Regulated

    In response to the new Tier regulations, engine manufacturers have begun introducing significant design changes and sophisticated engine control systems to reduce the major pollutants in diesel exhaust fumes. All these innovations have culminated in the “Tier 4 final” diesel engines you will start seeing in the near future.  In order to meet the Tier 4 final requirements, the ...


    By BBA Pumps North America

  • Integration of an evolutionary algorithm into the ensemble Kalman filter and the particle filter for hydrologic data assimilation

    Data assimilation (DA) methods continue to evolve in the design of streamflow forecasting procedures. Critical components for efficient DA include accurate description of states, improved model parameterizations, and estimation of the measurement error. Information about these components are usually assumed or rarely incorporated into streamflow forecasting procedures. Knowledge of these ...


    By IWA Publishing

  • Genset locomotive repower project - CSX transportation case study

    In December of 2007, CSX Transportation, in cooperation with PSEG Fossil LLC and NESCAUM, began a project to modernize three conventional switch locomotives to a more efficient and less polluting design.  Each locomotive engine was replaced with two smaller power packs, each equipped with a diesel particulate filter (DPF).  These locomotives are now cleaner, quieter, and more energy ...

  • Combinations of Measures for Reduction of NOx & Nanoparticles of a Diesel Engine

    Reduction of NOx- and particle emissions of Diesel engines is worldwide an important challenge for the engineers. Some unregulated components, like NO2, NH3 and naoparticles NP came in the focus of attention in the last years.Application of EGR and / or SCR can lower NOx, using RME (Bxx) can increase NOx. What happens with NP, parameter which enters in some further steps of exhaust gas ...


    By Vestlandsforsking

  • Filter aids

    Filter aids are used to assist filtration of colloids, extra fine particles, gel like, and highly compactible materials, which are difficult to be filtered due to low filtrate rate, unacceptable filtrate clarity, high cake moisture content, or serious filter medium clogging. They can be used as “precoat” on the surface of filter media or in conjunction with feeding suspension as ...

  • Nano this and Nano that?

    Several terms, each with the prefix “nano-”, are now in use in the fields of filtration and its related separation processes, and it is important to be able to differentiate among their nuances of meaning. Firstly, there is nanometer itself, from which the others derive, and which is precise, measuring one thousandth of a micrometer or one millionth of a millimeter. It is thus a very ...

  • How well does my filter work?

    Contamination control is the key to a cost-effective maintenance operation for hydraulic or engine systems. You depend on your filters, whether hydraulic, lube or fuel, to keep your fluids clean, to keep maintenance costs down, and to ensure reliable operation. At some point, you probably will ask yourself whether or not your filters are really working and doing what they were designed to do. ...

  • An end to the problem of particle emissions

    Austrian biomass heating systems guarantee an 80% cut in emissions. Recent studies have shown that these modern domestic boilers offer a significant reduction in particles, emitting fewer contaminating agents than previous generation boilers and wood stoves – with more than 100mg / ml of particles. The future will be based on new biomass combustion technology which cuts dust emissions from ...

  • Office Printers Emit Ultra fine particle pollution

    We’ve heard quite a bit about particulate matter PM10s and PM2.5s as components of air pollution that we are exposed to on a daily basis. Recent research papers are highlighting the dangers of ultra fine particles (UFPs), which have a diameter of less than 0.1 micrometres (or 100 nanometres). By contrast, the diameters of particulate pollution from PM10s and ...


    By Commercial Air Filtration

  • Simulation of particle capture in a microfiltration membrane

    The present study takes an interest in the description of the fouling mechanisms by a numerical approach at the microscopic scale. At first, an X-ray tomography has enabled the modelling of the membrane structure for the numerical simulations. Next, for different particle size, a same volume of particles has been sent in the modelled membrane and the final permeability has been computed. Thus, ...


    By IWA Publishing

  • Effect of active control of electric potential of filter medium on depth filtration

    The effect of active control of electric potential of filter medium on depth filtration was explored experimentally. Activated carbon particles were selected as the conductive filter medium. The filter medium potential was controlled with an external DC power supply. Kaolin particles were used as the model suspended solid. The activated carbon and kaolin had negative zeta potential around neutral ...


    By IWA Publishing

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you