liquid filtration Articles

  • Liquid Filtration and Media World Markets Report

    Provides analyses & forecasts for belt presses, automatic back wash filters, filter presses, bags, leaf, drum and sand filters in each of 80 countries segmented into 10 industry segments. Analysis and forecasts of media is also included. In this fast changing market place it is necessary to have information as current as Tuesday, November 17, 2009 . Find out how this report reflects the ...


    By The McIlvaine Company

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • The Filtration Spectrum

    Reverse Osmosis. Microfiltration. Distillation. Deionization. With so many types of filtration and purification systems on the market today it is difficult to determine which type of technology is best for your needs. The filtration of liquids is performed at many levels. To understand how to maximize your filtration needs, one needs to consider the size range of the particles. Once this is ...

  • Membranes, the Finest Filtration

    Introduction The notion that salt could be removed from seawater without a phase change took hold of Dr. Sourirajan's imagination in the late 1950's. The actual invention of the reverse osmosis (RO) membrane took place in his laboratory at UCLA around 1960. (Thus Sourirajan could be called not only the 'Father of Reverse Osmosis,' but the initiator of all crossflow membrane technology.) The full ...


  • Air filtration applications for membranes

    Given their unique performance attributes membranes are finding use in a growing number of high efficiency air filtration applications. One example is in respirators and personal protective equipment. Applications where intense physical demands and risk of exposure to harmful contaminants are present demand the high efficiency / low pressure drop combination of expanded polytetrafluoroethylene ...

  • 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

  • Red mud filtration - case study

    YEAR: 2010 COUNTRY: HUNGARY N° and MACHINERY MODEL EMPLOYED: 1 GHT 1500.P7 MEM Diemme® Filtration This company had to deal with ‘red mud’ disposal, coming from the Bayer Process of alumina production. The material is potentially very dangerous for the environment and the health of people living in close ...

  • 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

  • Liquid-Liquid extraction of aroma compounds with hollow fiber contactor

    Introduction   Nowadays, aroma concentrates are widely used in the food industry to improve the flavor of formulated foods or to compensate for the flavor losses of natural raw products during industrial processing. Consumers are more attracted to food products containing only ‘‘natural’’ or ‘‘nature-identical’’ ...

  • It’s Time to Rethink Cooling Tower Filtration

    ABSTRACTThe dissipation of ambient or process heat in large HVAC systems, manufacturing facilities, power generation plants, refineries, metal mills and forges, chemical plants and food processors is most often accomplished by cooling towers. These simple structures facilitate the transfer of unwanted energy (heat) from a transport liquid (usually water) to the atmosphere. The bane of cooling ...

  • 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

  • Water filtration media: Talking about a revolution?

    Developments in any field of endeavour are nearly always evolutionary, not revolutionary. It is normal to expect advances in manufacturing equipment, process control and chemical science to facilitate product improvements. In the field of liquid filtration there is frustration at the seemingly unbreakable linkage that exists between increasing pressure drop and lower flow rates as gains are made ...


    By Ahlstrom Corporation

  • The Dangers of Hydrogen Sulfide and Filtration with Activated Carbon

    Hydrogen sulfide (H2S) is a poisonous, highly flammable, colorless gas that is associated with a ‘rotten egg’ odor. As stated by cchealth.org, “hydrogen sulfide is created naturally by decaying organic matter and is released from sewage sludge, liquid manure, and sulfur hot springs.” It also is a by-product from industrial processes such as natural gas processing, ...


    By General Carbon Corp.

  • Whitepaper: Chemical-physical Water Treatment, Filtration and Flocculation

    Introduction In water treatment plants chemical-physical processes play an essential part in the process chain. They are successfully employed in the pre- and post-treatment of waters of different origins, as well as of other process liquids. In this regard the removal of particles by filtration is a central step. Classical filtration processes are used for particles ranging from ...


    By EnviroChemie GmbH

  • Ultrasonic waves lead to liquid cavitation creation

    Theoretically liquid starts boiling when pressure in some sites of a stream decreases to pressure of its saturated steam. Actually pressure of liquid cavitation creation process depends on the physical condition of liquid. If liquid contains a large amount of the dissolved air, reduction of pressure leads to air allocation from liquid and formation of gas cavities (cavities) in ...


    By PC GlobeCore

  • Ultrasonic waves lead to liquid cavitation creation

    Theoretically liquid starts boiling when pressure in some sites of a stream decreases to pressure of its saturated steam. Actually pressure of liquid cavitation creation process depends on the physical condition of liquid. If liquid contains a large amount of the dissolved air, reduction of pressure leads to air allocation from liquid and formation of gas cavities (cavities) in which pressure is ...


    By GlobeCore Blending

  • Beta ratios explained and applied to liquid filter selection

    Liquid Filter Beta Ratios: Absolute rated liquid filter selection is tied to the media micron rating, materials of construction, construction design, and particulate removal efficiency filter factor known as its Beta Ratio (Figures 1, and 2). Consider that Engineering and Purchasing usually see absolute rated liquid filter efficiencies from vendor data sheets and quotes listed at 99%, ...

  • New developments in filter cartridges for reverse osmosis pre-filtration

    Reverse osmosis (RO) pretreatment systems are designed to reduce suspended solids to a level that will provide the most suitable conditions for the performance of the membrane system. Depending upon the quality of the feed water, pretreatment may include settlement, clarification, multi-media filtration, and chemical treatment. However, sediment pre-filtration is always required to ensure that ...

  • Precipitation of aluminium and phosphates in effluents treated by membrane filtration - Case Study

    Customer Application and Activity Decoral specializes in treating technical components made from aluminium and titanium through treatment steps such as anodizing and polishing. The effluents from its surface treatment plant are mainly contaminated with aluminium and phosphates. Problem to be solvedDecoral was keen to simplify the management of its products to the greatest degree possible and was ...


  • Virus removal vs. subsurface water velocity during slow sand filtration

    In an attempt to obtain a conservative estimate of virus removal during slow sand and river bank filtration, a somatic phage was isolated with slow decay and poor adsorption to coarse sand. We continuously fed a phage suspension to a 7-m infiltration path and measured the phage removal. In a second set of experiments, we fed the phage suspension to 1-m long columns run at different pore water ...


    By IWA Publishing

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