reverse jet filter Articles

  • Short- and long-term fouling characteristics of reverse osmosis membrane at full scale leachate treatment plant

    This research is focused on characterizing the foulants on a reverse osmosis (RO) membrane taken from a full-scale leachate treatment plant in Thailand. The system consists of a physico-chemical pre-treatment unit and RO system and has been in operation for 2 years. Ferric chloride (FeCl3) was added to the open-jet sedimentation tank at 2.0–2.5 g/l dosage for chemical coagulation. The supernatant ...


    By IWA Publishing

  • Laboratory, pilot and industrial-scale validation of numerically optimized reverse-flow gas cyclones

    This paper addresses the experimental validation of the optimum design of reverse-flow gas-cyclones, obtained through the solution of a numerical non-linear optimization problem, viz. maximizing cyclone collection. The simulation model is based on the predictive properties of a finite diffusivity model, where the particles' turbulent dispersion coefficient is estimated through an empirical ...

  • Solid / gas separation with fabric filters

    A myriad of filter media are utilized today for separation of particulate matter in industrial gas filtration applications. These media range from single use (deposable) to semi-permanent media and include fiber, fabric, ceramic, membrane, metal mesh, and sintered metal media. Semi-permanent media are usually cleanable, either on or off-line, and are primarily intended for long-term (up to ...

  • Advantages of cleaning without a venturi in baghouse collectors

    ABSTRACT: Background The cleaning cycle is the most important part of the dust collector because it controls efficiency and media life. In order to clean a row of bags in a reverse pulse jet baghouse first the flow of filtered air must be momentarily stopped and then back flushed or “induce” air to knock the dust cake off the outside of the filter media. A venturi at the top of the ...


    By Scientific Dust Collectors

  • Energy efficiency waste extraction upgrade against the clock

    When Impacts project team were challenged with the gauntlet of replacing a twin extraction system at Greenshires in a 24-hour shutdown they knew they had a challenge. After many years of suffering unreliability of an environmentally unfriendly waste system, Greenshires - Leicester, had no option but to replace it with the latest extraction system solutions. Impact Air Systems were called to the ...


    By Impact Air Systems

  • Improving the cleaning cycle in baghouse collectors

    ABSTRACT: Background The reverse pulse jet baghouse has been around for over 45 years and the cleaning cycle has not changed very much since that time. The cleaning cycle is the most important part of the dust collector because it controls efficiency and media life. In a generic baghouse, the cleaning system is comprised of a blowpipe that is located typically approximately three inches above ...


    By Scientific Dust Collectors

  • When productivity is reduced by the waste extraction system, its time to take action.

    Woodford litho called upon Impact Air Systems to review their existing waste extraction system in preparation for the installation of an additional new binding line.  The existing waste system, supplied by a competitor, delivered the waste to a single compactor and was not capable of removing the additional waste from the new binder but also blocked frequently, reducing productivity of the ...


    By Impact Air Systems

  • 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

  • Fine particle capture in biomass boilers with recirculating gas cyclones: Theory and practice

    This paper addresses the theoretical development and experimental validation of optimized recirculating reverse-flow gas cyclones. The simulation of these systems is based on the predictive properties of a finite diffusivity model, modified to include partial recirculation of the cyclones' emissions. Experimental validation was obtained at laboratory and pilot scales at low temperatures (up to ...

  • Pilot and Industrial-Scale Experimental Investigation of Numerically Optimized Cyclones

    A new geometry of reverse-flow gas cyclones obtained by numerical optimization was shown at the laboratory scale to be significantly more efficient than other high-efficiency designs. However, it is usually recognized that experimental results obtained with laboratory-scale or sampling cyclones cannot be extrapolated to pilot or industrial scales. The present paper confirms, at these larger ...

  • New Nozzle Technology “Cleaning More with Less”

    This technical paper will explain the new nozzle technology developed by Scientific Dust Collectors that allows high air-to-cloth ratio baghouses to use 80psig of compressed air instead of the industry standard 100psig.   The reverse pulse jet baghouse has been around for over 50 years and the cleaning cycle has not changed very much during that time. The cleaning cycle is the most important ...


    By Scientific Dust Collectors

  • Impact lead the way in paper and glass separation

    Impact Air Systems was recently contacted by one of the UK's leading recycling led waste management companies to help them improve the process following the recent introduction of domestic glass into the material stream. The company involved have requested to remain anonymous, but currently operate 6 large scale operations in the UK.   We were called to their facility in the West ...


    By Impact Air Systems

  • Moving difficult-to-handle bulk materials with flexible screw conveyors

    Flexible screw conveyor systems can be engineered to transport bulk materials that tend to pack, cake, smear, break apart or fluidize, and can prevent the separation of blended products. Flexible screw conveyors (Fig. 1) are suitable for most bulk materials, from sub-micron powders to large pellets, both free-flowing and non-free flowing. They are capable of conveying bulk materials at any angle ...


    By Flexicon Corporation

  • How a new source of water is helping reduce conflict in the Middle East

    Scientists and others look to desalination as a way to unite longtime enemies in a common cause. Ten miles south of Tel Aviv, I stand on a catwalk over two concrete reservoirs the size of football fields and watch water pour into them from a massive pipe emerging from the sand. The pipe is so large I could walk through it standing upright, were it not full of Mediterranean seawater pumped ...


    By Ensia

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