desalination membrane Articles

  • AWA’s Membrane and Desalination Conference

    AWA’s Membranes & Desalination Conference brings together industry professional and engages you to look back at  a decade of desalination developments and forward to a future of climate resilient innovations. It hosts several pre-conference workshops, networking events and includes a line-up of influential speakers. This year, the President & CEO of LuminUltra, Pat Whalen was ...


    By LuminUltra Technologies Ltd.

  • Carbon nanotube membrane for water desalination

    This is a review of carbon nanotube membranes with an emphasis on their water desalination applications. Particular attention is given to carbon nanotube preparation, types and properties. The concept of desalination in the context of carbon nanotubes is discussed. The different processes for the manufacture of carbon nanotube membranes are electric arc discharge, laser ablation and Chemical ...


    By Inderscience Publishers

  • Seawater Desalination

    Seawater covers 71% of the planet surface and represents 97% of the world's water,and seawater has a lot of resources to be explored.Along with recycled wastewater, it is one of the few rainfall-independent water sources.However,in the current condition,seawater cannot be used directly because of the high salinity.To solve it,many methods of desalination are adopted. Desalination is a process ...


    By Horizon Water Co., Ltd.

  • Desalination of brackish groundwater by direct contact membrane distillation

    The direct contact membrane distillation (DCMD) applied for desalination of brackish groundwater with self-made polyvinylidene fluoride (PVDF) membranes was presented in the paper. The PVDF membrane exhibited high rejection of non-volatile inorganic salt solutes and a maximum permeate flux 24.5 kg m−2 h−1 was obtained with feed temperature at 70°C. The DCMD experimental results indicated that the ...


    By IWA Publishing

  • Desalination and water recovery: control of membrane fouling

    Ultrafiltration (UF), Nanofiltration (NF) and Reverse Osmosis (RO) technologies are widely used for the production of safe drinking water, and for the recovery of reusable water from various industrial effluent streams. The most commonly encountered phenomenon in these processes, especially in water recovery application, is membrane fouling, and control of membrane fouling is regarded as a ...


    By Inderscience Publishers

  • Direct contact membrane distillation for nuclear desalination. Part I: Review of membranes used in membrane distillation and methods for their characterisation

    Membrane distillation (MD) is a relatively novel membrane technology considered by the researchers as a potential method for seawater desalination. In the first issue of this journal, the possibility of nuclear desalination by MD was discussed comparing various MD configurations. The present paper firstly reviews the membranes used in MD and the methods of their characterisation, among them ...


    By Inderscience Publishers

  • Environmentally sound desalination at the Perth Seawater Desalination Plant

    AbstractWater scarcity is recognized as a significant problem in Australia and throughout the world. Yet the demand for fresh water continues to grow, driven by the need for drinking water to satisfy the world’s growing population, changing weather patterns, an increasing need for water for agriculture and industry and the concentration of populations in urban areas that lack sufficient fresh ...


    By Energy Recovery Inc

  • High performance RO membranes for desalination and wastewater reclamation and their operation results

    Reverse osmosis (RO) membrane is one of the most powerful tools for solving the global water crisis, and is used in a variety of water treatment scenes such as drinking water purification, waste-water treatment, boiler feed water production, ultra pure water production for semiconductor industry, etc. The desired performance of RO membrane varies according to quality of feed water being treated, ...


    By IWA Publishing

  • Brine disposal from land based membrane desalination plants: a critical assessment

    The earliest applications of desalination technology date back to the use of boiler condensate on early “steam-ships”. Installation of large-scale land-based desalination facilities began in the Middle East shortly after the end of WW II. These saline water evaporators were sited along the Persian Gulf and other costal locations. An especially large increase in desalination capacity began in the ...


    By Lesico CleanTech

  • Largest power plant in philippines uses membrane desalination for purified WA

    The Facility Ilijan Plant, developed by KEILCO-KEPCO Ilijan Corporation, is located in the Island of Luzon, about 100 miles south of Manila, Philippines. It is a combined cycle power plant and at 1,200 MW generating capacity, is the largest power plant in the Philippines. The plant consists of two power blocks, which share a common membrane based Seawater Desalination system for ...

  • Depth exposed membrane for water extraction (DEMWAX) for seawater desalination

    Introduction The Depth Exposed Membrane for Water Extraction (DEMWAX) is a novel approach to both fresh surface water treatment and seawater desalination that deploys a system directly within the source water body. The DEMWAXTM system is configured to take advantage of the natural (free) pressure of the source water body to drive a membrane process. This configuration has many advantages ...


    By EconoPure Water Systems, LLC

  • The effect of intermittent operation on a wind-powered membrane system for brackish water desalination

    Renewable energy powered membrane systems that are directly-connected must take account of both the inherent fluctuations and the intermittency of the energy resource. In order to determine the effect of intermittent operation, a membrane system was tested with variables of (i) amplitude from 60 to 300 W and (ii) length of time with no power from 0.5 to 3 min. This was performed over one hour ...


    By IWA Publishing

  • High performance RO membranes for desalination and wastewater reclamation and their operation results

    Reverse osmosis (RO) membrane is one of the most powerful tools for solving the global water crisis, and is used in a variety of water treatment scenes such as drinking water purification, waste-water treatment, boiler feed water production, ultra pure water production for semiconductor industry, etc. The desired performance of RO membrane varies according to quality of feed water being treated, ...


    By IWA Publishing

  • Desalination membrane water treatment system for Lajes US Air Force

    GEA designed and provided a Desalination Membrane Water Treatment System for the US Air Force Lajes Field Water Treatment Plant, located in the Azores. The Membrane System capacity is 1.1 MGD (4.2 million m³/day) and consists of twenty (20) 8-inch diameter pressure vessels arranged with 14 pressure vessels in the first pass followed by six pressure vessels in the second pass. There are 120 ...


    By GEA ENGINEERING

  • Fouling and cleaning of seawater reverse osmosis membranes in Kalpakkam nuclear desalination plant

    A seawater reverse osmosis plant of 1800 m³/day capacity is part of the 6300 ³/day capacity nuclear desalination demonstration project at Kalpakkam. The plant was commissioned in October 2002 and is in continuous operation. This paper deals with types of foulants, membrane cleaning procedures and the improvement in the reverse osmosis system after cleaning. This paper also describes the ...


    By Inderscience Publishers

  • Possibility of nuclear desalination through various membrane distillation configurations: a comparative study

    Three membrane distillation processes, direct contact membrane distillation, sweeping gas membrane distillation and vacuum membrane distillation, have been experimentally studied in a shell-and-tube capillary membrane module. Preliminary experiments were conducted using distilled water and sodium chloride aqueous solutions as feed. The effects of the operating parameters - flow rate, temperature ...


    By Inderscience Publishers

  • Desalination of simulated seawater by purge-air pervaporation using an innovative fabricated membrane

    An innovative polymeric membrane has been invented, which presents a breakthrough in the field of desalination membranes. It can desalinate simulated seawater of exceptionally high concentration to produce a high flux of potable water with over 99.7% salt rejection (%SR) in a once-through purge-air pervaporation (PV) process. A set-up was constructed for conducting the desalination ...


    By IWA Publishing

  • Seawater desalination with solar-energy-integrated vacuum membrane distillation system

    This study designed and tested a novel type of solar-energy-integrated vacuum membrane distillation (VMD) system for seawater desalination under actual environmental conditions in Wuhan, China. The system consists of eight parts: a seawater tank, solar collector, solar cooker, inclined VMD evaporator, circulating water vacuum pump, heat exchanger, fresh water tank, and brine tank. Natural ...


    By IWA Publishing

  • Choose among membranes for RO desalination - Varied construction options available

    A wide variety of membrane types, sizes, construction options and techniques are available for removing salt from water. There are basically two types of commercial membranes used in RO applications today: cellulose acetate (CA) and thin film (TF). The former is considered an integral membrane, the latter a composite membrane. The following is basic criteria to compare one type to the other: ...


  • Energy evaluation and treatment efficiency of vacuum membrane distillation for brackish water desalination

    Strict environmental regulations have led to the rapid development of membrane separation technologies for the production of potable water, for industrial water supply, and for the reuse and discharge of treated wastewater. Promotion of water recycling and the provision of potable water from brackish water prevent significant negative effects on the environment and drinking water supplies. This ...


    By IWA Publishing

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