uf membrane system Articles

  • Dependable Pretreatment for UF Membrane Water Treatment System

    Lake Forest is a small upper class community along the west shore of Lake Michigan about 35 miles north of downtown Chicago, IL. In 1890 a group of residents started the Lake Forest Water Company on the present site to provide water for the residents of the community. Prior to the spring of 2004, the Lake Forest Water Plant provided traditional water treatment. Coagulating chemicals were added to ...

  • The best alternative to the protection of the UF membranes - Case Study

    Advance solutions to the recirculation of water in swimming pools. Problem The public swimming pools are continuously used during all the week for many people for making sport, amusement or relax. In these installations, the visual aspect and the sanitary conditions must be guaranteed all the time. In indoor public pools, even with the mandatory previous shower and the use of ...


    By Sistema Azud, S.A.

  • Removal of micropollutants and NOM in carbon nanotube-UF membrane system from seawater

    One of the main problems for seawater reverse osmosis desalination is membrane fouling associated with natural organic matter. Bisphenol-A (BPA) and 17α-ethinylestradiol (EE2) are well-known endocrine-disrupting compounds that have been detected in wastewater and seawater. In this study, the contribution of carbon nanotubes (CNTs, single-walled carbon nanotubes) to membrane fouling control and ...


    By IWA Publishing

  • Intermittent operation of low pressure UF membranes for sewage reuse at household level

    A household-scale wastewater treatment system was operated with domestic sewage. The system could recover gardening/irrigation water from raw sewage or secondary effluent by low pressure ultrafiltration (UF). The UF membranes (surface area = 3.5 m2, pore size = 0.04 μm) were operated at constant transmembrane pressure (0.13 bar). The proposed technology was examined for ...


    By IWA Publishing

  • Influence of hydraulic retention time on UASB post-treatment with UF membranes

    A pilot UASB reactor coupled with an external ultrafiltration (UF) membrane was operated under three different hydraulic retention times (HRT) for domestic wastewater treatment. The aim was to assess the HRT influence on system performance and fouling. The highest concentrations of COD, total solids, extracellular polymeric substances (EPS) and soluble microbial products (SMP) in UASB effluent ...


    By IWA Publishing

  • RO, UF, MF World Markets Report

    Provides continually updated analyses and forecasts of cross flow microfiltration, reverse osmosis, and ultrafiltration systems and membranes in 80 countries and regions with separate forecasts for each application from desalination to wine ...


    By The McIlvaine Company

  • The productive environmental laboratory: BSK Labs boosts efficiency with Metrohm IC

    BSK Labs runs a number of environmental laboratories and service centers along the west coast of the US. A total of 70 employees – including microbiologists, chemists, lab technicians, and support staff – make sure that the 200 to 350 samples that come in every week are analyzed. BSK Labs specializes in potable water chemistry, ground water monitoring, storm water runoff, solid waste ...


    By Metrohm AG

  • Membrane filtration

    Membrane is a thin layer of material that is capable of separating compounds as a function of physical and chemical properties when a driving force is applied across the membrane, which has been widely used in a wide range of applications in water industry [1]. Membrane can be classified by the range of compounds separated and the driving forces employed. For example, microfiltration (MF), ...


    By IWA Publishing

  • The Culligan UF-P2 water filtration system - smart well technology for disaster response & beyond

    A Longstanding Commitment to Innovation & Philanthropy As a global leader in water treatment, Culligan has developed innovative industrial and commercial water treatment systems for over 70 years. The company's worldwide network, strong service capability and revolutionary technology offers customers one source for end-to-end water treatment solutions tailored to help meet their ...


    By Culligan Matrix Solutions

  • Membrane Bioreactor for Automobile Manufacturer

    Dynatec provided a system to treat wastewater from Ford's automotive assembly plant. The Problem The existing batch chemical treatment system for oil and metals removal was unable to meet the new standards for discharge to local POTW. The new requirements called for lower BOD and total Nitrogen and there was no way to make the existing system able to meet the standards. ...


    By Dynatec Systems Inc.

  • Crossflow Membrane Filtration High-Purity Water Systems

    INTRODUCTION As the electronics industry continues to provide us with such products as high resolution television, notebook size portable computers and cars with automatic navigation systems, it becomes necessary to produce semiconductors with finer device geometries to allow for efficient placement of more circuits per a given area. This requires increased control of a semiconductor's material ...

  • Membrane Bioreactors for RO Pretreatment

    ABSTRACTCurrently, treated municipal wastewater is typically discharged to the environment in most parts of the world. It is, however, a potential water resource from which high quality water for reuse can be produced. Reuse applications include both non-potable applications such as irrigation and production of industrial process water, and indirect potable reuse including aquifer recharge. For ...

  • Dynatec Provides Membrane System to Recover Silver

    Dynatec was selected to provide a complete system to recover silver in Dupont's Manati, Puerto Rico microcircuit materials plant. The Problem Dupont's microcircuit materials production facility in Manati, Puerto Rico produces high purity silver in their process.  The process produces a wastewater stream containing valuable dissolved silver compounds.  The plant had ...


    By Dynatec Systems Inc.

  • Experimental investigation of oily wastewater treatment using combined membrane systems

    Investigations were carried out for purification of oily wastewater by a combined of ultrafiltration/reverse osmosis (UF/RO) processes. Laboratory-scale UF using polysulfone (PS) and polyacrylonitrile (PAN) membranes were employed with typical oily wastewater collected from API unit of Tehran refinery. The PAN membrane showed higher rejection, more permeation flux and less fouling resistance than ...


    By IWA Publishing

  • Picking Their Membranes - Part I -

    Membrane use by water suppliers may not be new, but suppliers are considering membranes in new ways -- by number and variety of applications. Membranes can work on a wider range of resource waters, more efficiently and for less cost than before. Among membranes' attractions as substitutes for conventional water-treatment technologies, such as filtration, distillation and ion-exchange are: ...


  • Optimization study of a hybrid alum coagulation-membrane filtration system for virus removal

    Due to the intrinsically small sizes of enteric viruses (20–100 nm) and their relatively high resistance to most disinfectants, detection of viruses in treated drinking water is not a rare phenomenon. This study therefore evaluates various aspects involved in a hybrid alum coagulation-ultrafiltration (UF) system for virus removal. Coagulant doses (0, 1 and 10 mg Al3+/L) and pH conditions relevant ...


    By IWA Publishing

  • Software warns of early membrane fouling

    A software system known as MASAR – Membrane Alarm System and Automated Reporter, is proving to be a valuable tool for monitoring and optimizing membrane – based water purification and desalination plants. It can detect the early development of membrane fouling/scaling in RO, NF, UF and MF systems by monitoring performance and measuring an early-warning parameter called the Fouling ...


    By MASAR Technologies, Inc.

  • 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 ...


  • Real-Time Membrane Fouling Monitoring

    The Port Hueneme Water Agency (PHWA) has been operating a municipal drinking water treatment plant designed to be a Brackish Water Reclamation Demonstration Facility. The facility consists of 3 separate side-by-side full scale systems or trains, each representing a major membrane separation process: nanofiltration (NF), reverse osmosis (RO) and electro dialysis reversal (EDR). Both the NF and RO ...


    By MASAR Technologies, Inc.

  • Efficiency and reliability of membrane processes in a water reclamation plant

    Performance of a water reclamation plant using ultrafiltration (UF) and reverse osmosis (RO) treating 280,000 m3/d of wastewater was evaluated over 1 year. Statistical analyses were performed on flow rate, temperature, pH, total suspended solids (TSS), total dissolved solids (TDS), biochemical oxygen demand (BOD5) and total coliforms. Variations in flow rates coincided with those in ...


    By IWA Publishing

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