Seawater Reverse Osmosis Articles

  • 6 Factors to Consider When Selecting a Watermaker

    When it comes to the critical choice of selecting a watermaker for your offshore, marine or industrial location you have very important factors to consider. 1.  When your equipment breaks or needs ...


    By H2O Inc.

  • Brackish Water as a Resource

    There’s a great deal of talk and debate about the value of treating brackish water, or water that is more saline than fresh water, but not quite as saline as seawater. Brackish water can result from the mixing of seawater with fresh water, as in surface waters such as estuaries or other watery ecosystems, or it can occur underground in aquifers. Salinity Levels Although ...


    By Fluence Corporation

  • Seawater Treatment Yields Process Water for Power Plant - Case Study

    PROJECT DETAILS LOCATION Ataqa, Egypt CUSTOMER Ataqa Power plant SOLUTION Seawater Demineralization Plant TECHNOLOGIES Ultrafiltration, Seawater Reverse Osmosis Desalination, Brackish Water Reverse Osmosis Desalination, Mixed Bed Deionization A power plant in Egypt ...


    By Fluence Corporation

  • Reverse Osmosis vs Nanofiltration Membrane Process: What Is the Difference?

    Reverse osmosis (RO) and Nanofiltration (NF) are physical separation technologies used to remove contaminates from liquid streams. In recent years, RO/NF technologies have become more efficient and affordable for use across a variety of industrial applications, including ...


    By SAMCO Technologies, Inc.

  • Brackish groundwater desalination on the rise

    Brackish water is water that is more saline than fresh. It’s not quite as saline as seawater, but it’s still too salty to be used without treatment. Typically, advanced treatment technologies — reverse osmosis and ultrafiltration, as well as other membrane-based technologies — are needed to purify and desalinate brackish groundwater before its use. Brackish groundwater ...


    By Fluence Corporation

  • Separation study of Mg+2 from seawater and RO brine through a facilitated bulk liquid membrane transport using 18-Crown-6

    A facilitated bulk liquid membrane transport approach is studied for Mg(II) extraction from seawater and reversed osmosis brine simulated media using 18-Crown-6 and dibenzo (DB)-18-Crown-6. The work is based on investigating the experimental parameters affecting the transport efficiency, such as pH of feed and receiving phase, type of membrane solvent, temperature, type and concentration of ...


    By IWA Publishing

  • Boron removal from brackish water by reverse osmosis and nanofiltration membranes: application of Spiegler–Kedem model and optimization

    Drinking water should contain certain chemicals only in limited quantities. Boron, one of these chemicals which is considered as a threatening compound and is difficult to eliminate from water. The purpose of the research is to study the major role of reverse osmosis (RO) and nanofiltration (NF) process which can contribute to the removal of this inorganic element from brackish water. For this ...


    By IWA Publishing

  • QUA`s Q-SEP Ultrafiltration Membranes Utilized at Hinduja Power Plant

    Overview Visakhapatnam (also known as Vizag) is a city located in the state of Andhra Pradesh in India that has a growing need for a wider electricity network to serve its citizens and industrial activity. To address this need, Hinduja Power decided to build a 1040 MW coal fired power plant to provide power not only to Visakhapatnam, but also throughout the state and to other states in ...


    By QUA Group LLC

  • Reducing operational costs in high silica, 18,000m3/day BWRO in Arica, Chile

    Abstract The desalination industry has significantly evolved in the last decade with 33million m3/day of additional desalination capacity now operating. One third is using membrane technology with 6,458 Reverse osmosis plants coming on-line. More than twice as many brackish water RO plants than sea water plants have been built since the first plants were commissioned in the late ...

  • Results from 99 seawater ro membrane autopsies

    Abstract This paper presents results from 99 sea water reverse osmosis (SWRO) membrane autopsies carried out by the Genesys laboratory in Madrid from 2002 and outlines the technical issues surrounding fouling and scaling of sea water membranes. The authors discuss historical results of membrane autopsies and link recent trends and changes in plant design to potential fouling and ...

  • Cleaning biofouled membranes early improves plant operation. Comparison of autopsy and cleaning results on a small BWRO and large SWRO

    Abstract It is a fact that all new reverse osmosis membranes start to foul as soon as they start operation. The only variable is the rate at which they foul. Most RO plants operate at a differential pressure (ΔP) of 1.5 - 3 bar. Cleaning usually occurs when the ΔP is 10-15% above the design specification. This paper explores the benefits of early identification of foulants ...

  • Innovations in the inhibition and cleaning of reverse osmosis mebrane scaling and fouling - Case Study

    Abstract: Scaling and fouling of membranes are an on-going performance issue for most plants This presentation outlines innovations in speciality chemicals designed to inhibit membrane scaling and fouling and to clean membranes where deposition has occurred. High phosphate waste water reuse RO plant – There is an increasing trend to treat recycled waste water and use ...

  • Finding a Stable Operating Cleaning Regime - BWRO Plant - Cleaning Case Study

    Introduction A brackish water reverse osmosis plant (BWRO) in East Spain suffered a significant loss of performance, with permeate flow rate dropping 40% with a consequent drop in recovery from 65% to 45%. After unsuccessful cleaning attempts, Avista Technologies was approached to help the client remediate the system and to find a stable operating regime. This case study outlines how ...


    By Avista Technologies, Inc.

  • Brackish Water Reverse Osmosis Devices, Dubai UAE

    INTRODUCTION In August 2013, Pure Aqua, Inc. designed and manufactured brackish water reverse osmosis devices to a major company in Dubai, UAE to treat well water. There were four BW-1.5K-140 systems each designed to produce 1,500 GPD at a feed water TDS of a maximum 5,000 ppm, it was selected from our ...


    By Pure Aqua, Inc.

  • Skid mounted BWRO Systems, Venezuela

    INTRODUCTION In July 2013, Pure Aqua successfully manufactured and supplied five skid mounted BWRO systems to a major company in Venezuela. The skid mounted BWRO systems came complete with am activated carbon filter for chlorine ...


    By Pure Aqua, Inc.

  • Commercial BWRO Package, Iraq

    INTRODUCTION In July 2013, Pure Aqua, Inc. designed and manufactured a commercial BWRO unit to a major company in Iraq to lower chlorine, TDS, and odor from well water. The system included multimedia and activated carbon filters to remove particulates, odor, color and taste, and ...


    By Pure Aqua, Inc.

  • Commercial RO Package, Jordan

    INTRODUCTION In April 2013, Pure Aqua, Inc. designed and manufactured a commercial RO package to a major hotel in Jordan to remove, chlorine, TDS, and odor from well water. The package consisted of pre and post treatments including a multimedia filter and chemical dosing systems. The brackish ...


    By Pure Aqua, Inc.

  • Evaluating impact of fouling on reverse osmosis membranes performance

    Abstract Membrane fouling is commonly defined as an undesirable formation of deposits on mem- brane surfaces and it is considered a major problem in most brackish, seawater, and waste water reclamation applications. Depending on nature of the scale and foulant, fouling pro- cesses will lead to decreased membrane fluxes, increased pressures needs, and/or increased permeate conductivity. ...

  • Métallurgie Magnola, Quebec Case Study

    Métallurgie Magnola Inc. (MMI) is a company based in Danville - Québec, Canada - specializing in the production of magnesium from mine tailings located close to the plant. In 2003 the company was forced to suspend operations because of the intense competition coming from China. Problem During MMI's production process, a residual mainly composed of silica and iron was ...


    By H2O Innovation

  • 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

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