particulate filter Articles

  • Predicting Diesel Particulate Filter Performance

    The diesel particulate filter (DPF) has been used for many years in the control of diesel particulate matter (DPM)emissions. This technology is characterised by extremely high efficiency and high sensitivity to the application conditions. Research and testing performed by Diesel Controls Ltd. over the past two years has resulted in improved methods for predicting the application based performance ...


    By DCL International Inc.

  • What`s the Best Air Pollution Control Technology for My Process?

    Air pollution control equipment is not something that business owners address by saying, “Let’s do the right thing for the environment and install an oxidizer!” In fact, the scenario is more likely to be “We need to increase productivity (always a good thing!), but that will put us over our annual emissions limits. Do we know what we will need? Where do we start? Who can ...

  • Diesel Particulate Filters for Gensets in New York City

    Description Various portable diesel powered gensets, operating in a downtown urban environment (Manhattan, New York City). The gensets are used for powering construction equipment in a subway expansion project. Challenge The diesel particulate filters were required to meet local standards for particulate reduction. The units were expected to operate maintenance free despite the low ...


    By DCL International Inc.

  • Diesel Particulate Filter for Caterpillar Wheel Loader

    Description A soil remediation project in Colorado, USA, by Shaw Environmental, required enclosure of the work area while handling the contaminated soil with a Caterpillar 966G Wheel Loader. Challenge The operation of diesel powered heavy equipment for handling of soil within the enclosed area resulted in a high concentration of diesel soot in the air, diesel odor, and reduced ...


    By DCL International Inc.

  • Diesel Particulate Filter for John Deere Backhoe

    Description Metro Transit Authority construction site, Manhattan, New York City. John Deere 710G backhoe. Challenge A diesel particulate filter was required to meet local standards for particulate reduction. It was also necessary that the emission control device be installed such that it would not obstruct the line-of-site of the vehicle operator. Solution DCL custom ...


    By DCL International Inc.

  • Diesel Particulate Filters (flow-through) for Harvard University

    Description Harvard University, Cambridge, Massachusetts. Three MINE-X® Ultra flow-through diesel particulate filters installed on Harvard University diesel vehicles. Challenge Harvard Fleet Management Services in conjunction with the Harvard Green Campus Initiative are conducting a trial of DCL s new MINE-X® Ultra flow-through diesel particulate filter to reduce harmful emissions and ...


    By DCL International Inc.

  • Oil Sampling Best Practices (Part 2)

    Understanding Dynamic Particle Equilibrium in Closed Loop Systems Dynamic Equilibrium Condition (DEC) is defined as a steady state condition where the normal wear rate in a machine results in no net gain or loss of particles. ...


    By Spectro Scientific

  • Microscopic Particulate Analysis

    Introduction In 1989 the EPA promulgated the Surface Water Treatment Rule (SWTR) in response to the 1986 Amendments to the Safe Drinking Water Act (SDWA). The overall goal of the SWTR is to protect consumers from pathogens. The SWTR recommends a multiple-barrier approach including source water protection, filtration and disinfection when surface water is used as source water for drinking. ...


    By Analytical Services, Inc

  • The ‘ins and outs’ of air quality monitoring

    The National Institute for Health and Care Excellence (NICE) recently issued draft guidance on ‘Air pollution - outdoor air quality and health.’ In the following article Jim Mills, Managing Director of Air Monitors Ltd, explains why there will need to be more funding for monitoring if the mitigation measures mentioned in the guidance are to be implemented effectively. Jim also ...


    By Air Monitors Ltd.

  • The Clog Blog

    Clogging and over pressuring are definitely problematic for Liquid Chromatography columns. Back in 2005 John Dolan’s sage advice to chromatographers to make an LC column last forever was simple, “Never open the box!” As John pointed out, this is not practical and I have to agree. But as an LC column manufacturer I have seen remarks from customers regarding clogging as though it ...


    By Restek Corporation

  • Selection of Particulate Monitors

    The installation and operation of continuous particulate emission monitors in industrial processes has become well developed and common practice in industrial stacks and ducts over the past 30 years reflecting regulatory monitoring requirements. It supports requirements originating from LAPPC (Local Air Pollution Prevention and Control), IPPC (Integrated Pollution Prevention and Control), WID ...


    By PCME Ltd

  • Control of Welding Fume Particulates Using Cleanable Filter Media: Hexavalent Chromium

    Herein, a Sentry Air Systems product study of hexavalent chromium particles, [Cr(VI)], is reported. Due to the popularity of extended life cleanable filter media and health concerns regarding hexavalent chromium exposure in the work place, Sentry Air Systems conducted a study of the efficacy of cleanable filter systems for the maintenance of safe breathing conditions during welding operations ...


    By Sentry Air Systems, Inc.

  • In-Mine Field Trials of a Particulate Filter System with On-Board Electrical Regeneration

    ABSTRACT The need to improve air quality in many North American mines is clear, with stringent new diesel emission ...


    By DCL International Inc.

  • Case study - Organic particulate filtration

    Overview A food products company that mixes various types of waxes and other components to make the base for chewing gums was faced with the issue of cleaning up a slightly odorous, visible emission being exhausted from two of their process lines. The components of the emission were hot particles of chewing gum and some volatile organic compounds (VOC's). The particles would quickly clog ...

  • Air/water cleaning for the control of particulate fouling

    Fouling of feed spacers in spiral wound membrane elements due to particulate fouling and biofouling is one of the main operational problems of nanofiltration or reverse osmosis membrane plants. Removal of particulate fouling from spiral wound membrane elements is investigated using frequent air/water cleaning (AWC). In a pilot setup two spiral wound elements were operated in parallel and were fed ...


    By IWA Publishing

  • Particulate matter, halogen and aerosols - Case Study

    Example: Production of anodes for aluminium smelters as well as electronic industry (TFT-LCD) Similar tasks: Carbon and graphite industry, smelting of aluminium, coating of metals An anode producer has several ring furnaces to stabilise the anodes by carbonization for later processing in a melting bath. The hot exhaust gases pass through double walls in between the anodes where the gases ...

  • Total solution: Gas and particulate analysis in Cement industry

    Cement plants are increasingly required to install continuous emission monitoring systems (CEMS). While these represent a significant financial outlay, a range of other factors also need to be considered when selecting a suitable CEMS. To the inexperienced, selecting a suitable CEM can mistakenly be considered as simply ensuring that the applicable national regulations (eg MACT in the USA, ...


    By Environnement S.A

  • Global solution: Gas and particulate analysis in Cement industry

    Cement plants are increasingly required to install continuous emission monitoring systems (CEMS). While these represent a significant financial outlay, a range of other factors also need to be considered when selecting a suitable CEMS. To the inexperienced, selecting a suitable CEM can mistakenly be considered as simply ensuring that the applicable national regulations (eg MACT in the USA, ...


    By Environnement S.A

  • Evaluation of a Catalyzed Ceramic Diesel Particulate Filter and Catalytic Converter on an Underground Mine Vehicle

    The U.S. Bureau of Mines (USBM) and Diesel ControlsLimited are evaluating a new diesel emission control system on an underground mine vehicle. The system is a catalyzed ceramic wall-flow diesel particulate filter (CDPF) combined with an oxidation catalytic converter (OCC). It is the first installation in the ...


    By DCL International Inc.

  • The Use of Particulate Emission Monitors to Support Arrestment Plant Operation and Upkeep

    The operation of filtration type arrestment plant can be optimised by the effective use of Particulate Emission Monitors (eg Filter Leak Monitors and Filter Performance Monitors). Particulate Emission Monitors are installed throughout the broad spectrum of industrial processes to satisfy regulations (IPPC, Part B Guidance Notes, WID and LCPD) for emission limit enforcement. In addition, where ...


    By PCME Ltd

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