cross-flow microfiltration Articles

  • Pilot Testing Microfilters and Cloth-Media Filters for Lake Augmentation

    ABSTRACTMicrofiltration and cloth-media filtration were pilot tested for plant expansion and water supply augmentation purposes. The performance of the pilot units was assessed by evaluating key influent and effluent data, including suspended solids, turbidity, total phosphorous, hydraulic loading rate, flux, and chemical addition. Results showed that one of the cloth-media filters, and both of ...

  • Analyzing the spatial and temporal characteristics of membrane fouling

    Fouling characteristics of crossflow flat-sheet membranes for two Nanofiltration (NF), one Ultrafiltration (UF), and one Microfiltration (MF) membranes were analyzed using 12.5 parts per million (mg/L) FeCl3 solution and 350 mg/L copper nanofluid. FeCl3 solution represents dissolved contaminant whereas copper nanofluid simulates particulate contaminant. The spatial and temporal fouling ...


    By IWA Publishing

  • Assessment of the best available wastewater management techniques for a textile mill: cost and benefit analysis

    In the present study, several water recovery and end-of-pipe wastewater treatment alternatives were evaluated towards the evaluation of Best Available Techniques (BATs) for the management of wastewaters from a denim textile mill in accordance with the European Union's Integrated Pollution Prevention and Control (IPPC) Directive. For this purpose, an assessment that translates the key ...


    By IWA Publishing

  • Ammonia recovery from landfill leachate using hydrophobic membrane contactors

    This article aims to evaluate membrane contactors capability to remove and recover ammonia from landfill leachate (LFL). A hydrophobic hollow fiber membrane module was used to achieve such purpose. A sulfuric acid diluted solution was used as extraction solution to speed up ammonia content removal. Several factors that have influence on ammonia removal and recovery capability such as ammonia ...


    By IWA Publishing

  • A novel integrated assessment methodology of urban water reuse

    Wastewater is no longer considered a waste product and water reuse needs to play a stronger part in securing urban water supply. Although treatment technologies for water reclamation have significantly improved the question that deserves further analysis is, how selection of a particular wastewater treatment technology relates to performance and sustainability? The proposed assessment model ...


    By IWA Publishing

  • Principle of Reverse Osmosis (RO)

    Osmosis  Osmosis is a phenomenon where pure water flows from a dilute solution through a semi permeable membrane to a higher concentrated solution. Semi permeable means that the membrane will allow small molecules and ions to pass through it but acts as a barrier to larger molecules or dissolved substances. To illustrate this, assume that a semi permeable membrane is placed between two ...


    By Toray Membrane Europe

  • Application of Membrane Technology for the Recovery and Reuse of Water

    ABSTRACT As water and sewer costs are expected to increase over the next decade, membrane technology will continue to be a viable and economical option in the recovery and reuse of water. This paper describes the mechanism of membrane effected separation (specifically reverse osmosis, ultrafiltration and microfiltration), membranes commercially available, membrane element configurations, and how ...

  • A Link between Plant Profitability and Environmental Stewardship?

    Utilizing the latest separation technologies, Mobile Process Technology delivers complete solutions to any site in the world   The pervasive opinion that environmental stewardship is nothing but a drain on company resources is far more than a misconception. It’s bad business. Yet, with regulations tightening and public ...


  • Worlds First Magnetic Ion Exchange Water Treatment Plant to be Installed in Western Australia

    Since the mid-1980s, the Water Corporation of Western Australia (WCWA) has been investigating technologies to prevent an intermittent ‘swampy’ odor occurring in the city of Perth’s treated ground-waters (O’Leary and Herbert, 1998). Groundwater contributes around 50% of the water supply for Perth, which has a population of approximately 1.3 million. The Wanneroo Groundwater Treatment Plant (GWTP) ...


    By IXOM Watercare

  • RO membrane cleaning using microbubbles at 6,800m3/day Wastewater RO Plant in UAE.

    It is well known that any fouling of the membrane surface has a dramatic effect on energy consumption and plant efficiency; this is particularly true for waste water RO plants due to the higher fouling rate. Such fouling can be very difficult to clean using commodity chemicals or even speciality chemicals. This paper explores the use of a novel cleaning process designed to increase the ...

  • An open area to discuss porosity

    When discussing physical characteristics of filtration media and membranes, researchers often have questions regarding porosity. Sometimes confused with pore size, porosity is defined as the ratio of the void pore volume to the total volume of a membrane1, usually indicated as a percentage. Track-etched membranes have essentially ...


    By Sterlitech Corporation

  • A Practical Approach to Controlling the Fouling of Ultrafiltration Membranes: A Case Study of the Successful Development of a Commercial Soy Protein Application

    Introduction Ultrafiltration (UF) membrane technology has been successfully applied to food processes for more than 20 years. Opportunities abound for new UF food applications. Some of these opportunities are described in previous literature1 and in a comprehensive report of possible UF applications in several food industries by the US Department of Energy in 1989.2   UF can save ...

  • Update on Mt Pleasant WTP Incorporating the MIEX ® DOC Process and How it Compares With a Plant Operating in Enhanced Coagulation Mode

    Natural organic matter (NOM) is a major factor impacting on water treatment processes. NOM is a precursor of disinfectant by-products (DBP), a food source for regrowth of micro-organisms and makes downstream processes such as membrane filtration and activated carbon less efficient. Reducing NOM in conventional treatment plants can be achieved by using enhanced coagulation, whereby additional ...


    By IXOM Watercare

  • 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 ...


  • Treating Industrial Water with Membrane Technology

    A variety of industries are finding that it makes sense to reevaluate the way they treat industrial process water, both to improve the quality of their products and increase the efficiency of their processes. Purification systems utilizing crossflow membrane filtration, such as reverse osmosis (RO), nanofiltration (NF) or ultrafiltration (UF) can be a good alternative to traditional filtration ...


  • Evaluating Spiral-wound Separator Performance

    Introduction The recent evolution of spiral-wound membrane element (sepralator) design brings an increased need to understand the intricacies of testing, operating and predicting performance of this most popular crossflow membrane design. After over a decade of stagnant development, the last five years have produced several innovations, which diversify and expand the applications as well as ...


  • Point of use/point of entry treatment with LFNano

    EconoPure Water Systems EconoPure Water Systems designs and manufactures highly economical, scalable, low‐fouling membrane systems. The Company leverages the proprietary low‐fouling nanofiltration (“LFNano”) system consisting of a unique membrane element that is designed to avoid particulate fouling, biofouling and scaling. As the name suggests, the LFNano utilizes ...

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

  • City Water International explains The Basics of Water Filtration

    The Basics of Water Filtration Most of us know that filtered water is healthier than tap water because of its purity, but how does water filtration work? The basic principle is that filtered water has passed through a filter which removes contaminants through one of several methods, depending on the type of filter. Most water purification systems work in one of three ways ­ by running water ...


    By City Water International

  • Evaluating Traditional and Innovative Concentrate Treatment and Disposal Methods for Water Recycling at Big Bear Valley, California

    ABSTRACT The Big Bear Area Regional Wastewater Agency (BBARWA) recently completed a study of advanced water reclamation as a means to augment existing potable water supplies for the residents and visitors of Big Bear Valley. Potable water is provided by local groundwater (GW); during periods of drought or prolonged dry weather water demand can exceed supply. The use of recycled water, ...

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