Desalination Pretreatment Articles on Environmental XPRT

Novel method of stabilizing water pretreatment for reverse osmosis desalination

The preparation of functionalized filter media (FFM), its ability to release active antiscalant substances and its application for water treatment in water heating processes and as a pretreatment in reverse osmosis (RO) desalination were investigated in this study. FFM is a novel method of stabilizing water pretreatment designed to be free of the disadvantages of conventional methods of water ...

Jun. 12, 2014

By IWA Publishing

Study on performance of ultrafiltration membrane-based pretreatment for application to seawater reverse osmosis desalination

The objective of the work was to study at lab-scale the efficiency of hybrid process- coupling powdered activated carbon (PAC) adsorption or FeCl3 coagulation and UF- for marine organic matter removal. Regenerated cellulose membrane with 30 kDa and actual seawater from Mediterranean Sea were used. The coagulant was FeCl3 and adsorbents were two PAC types, with different surface area and pore size ...

Oct. 1, 2010

By IWA Publishing

Study on performance of ultrafiltration membrane-based pretreatment for application to seawater reverse osmosis desalination

The objective of the work was to study at lab-scale the efficiency of hybrid process- coupling powdered activated carbon (PAC) adsorption or FeCl3 coagulation and UF- for marine organic matter removal. Regenerated cellulose membrane with 30 kDa and actual seawater from Mediterranean Sea were used. The coagulant was FeCl3 and adsorbents were two PAC types, with different surface area and pore ...

Nov. 12, 2010

By IWA Publishing

Rapid sand filtration pretreatment for SWRO: microbial maturation dynamics and filtration efficiency of organic matter..Desalination 286 :120, 2012

Rapid sand filtration (RSF) is used today as an effective pretreatment procedure to enhance water quality prior to reverse osmosis (RO) membranes in desalination plants. RSF in newly operated desalination facilities requires a maturation period of about three months before the feedwater may be filtered efficiently. To date the desalination industry RSF has regarded RSF mainly as a ...

Jul. 7, 2012

By Israel Oceanographic and Limnological Research (IOLR)

RO Pretreatment Hydrocarbon Engineering - Optimisations of Osmosis

Desalination by reverse osmosis (RO) is a fast growing technology, which is gaining more and more market share in the field of desalination applications. RO plants are able to produce extremely pure water with minimal impurities, even if they are charged with highly contaminated feed water. Based on the fact that the RO membranes themselves are able to separate the smallest ions out of the raw ...

Jul. 1, 2015

By Kurita

Advances in desalination technology

Seawater desalination has been the cornerstone of the Middle East's water supply strategy since the mid-1950s, and most of the installed desalination capacity is still provided by multistage flash evaporators. But, desalination is changing. In fact, the term "desalination" is no longer limited to seawater applications; desalination technologies are now routinely employed to desalinate brackish ...

May 4, 2005

By Inderscience Publishers

Desalination: Looking to the future

Untitled Document ...

Mar. 29, 2005

By Filtration + Separation - Elsevier Ltd

Sustainable desalination technologies for future

This paper deals with some aspects concerning the dual objectives of cost-effectiveness and favourable environmental impact of desalination plants, resulting in a sustainable alternative source of fresh water for future needs. These include some case studies on the use of waste heat for the thermal desalination plants, replacement of conventional pre-treatments in membrane plants with cleaner ...

Jul. 1, 2010

By Inderscience Publishers

Optimisation of Osmosis. Jan Schallenberg, Kurita Europe GmbH, Germany, outlines the benefits of raw water pretreatment for reliable desalination by reverse osmosis - Case Study

Desalination by reverse osmosis (RO) is a fast growing technology, which is gaining more and more market share in the field of desalination applications. RO plants are able to produce extremely pure water with minimal impurities, even if they are charged with highly contaminated feed water. Based on the fact that the RO membranes themselves are able to separate the smallest ions out of the raw ...

Jul. 17, 2015

By Kurita

The future for desalination in the UK

Documento sin título In this feature article, Anthony Bennett, Technical Director at Clarity, reports on developments in the application ...

Oct. 14, 2005

By Clarity Authoring

Desalination pre‐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 ...

Sep. 8, 2012

By EconoPure Water Systems, LLC

Sea water desalination for sagunto, Spain

The Problem The Sagunto locality is situated in the region of the Camp of Morvedre in Spain. In recent years, a strong industrial growth has been anticipated in the zone. This has provoked a growing requirement for water in the Municipal Region of Sagunto. For this situation, the Sagunto Council planed to cover part of the future hydraulic deficit for short and long term with the ...

Sep. 14, 2010

By Aquatech International Corporation

Experiences with the conventional pretreatment system in the seawater reverse osmosis plant at Kalpakkam

A 1800 m³/day Seawater Reverse Osmosis (SWRO) plant was commissioned in October 2002 at Kalpakkam, India, as part of the Nuclear Desalination Demonstration Project (NDDP). The conventional pretreatment scheme was adopted consisting of a lamella clarifier, pressurised sand filter, activated carbon filter and cartridge filter. The dosing of pretreatment chemicals, ferrous sulphate and ...

Jun. 26, 2008

By Inderscience Publishers

Sea Water Desalination - Technical Article

Sea Water Desalination is a specific process involving molecular separation via membrane technology to reduce the dissolved salt and mineral content of sea water to a level suitable for human and animal consumption, commercial/industrial and irrigation uses. This process involves three water streams namely sea water as the intake source, Product / Permeate water of potable drinking water quality ...

Nov. 5, 2015

By Genesis Water Technologies, Inc.

Breakthrough in energy efficient desalination technology

Saltworks' proof-tested process employs an innovative thermo-ionic energy conversion system. The energy reduction is achieved by harnessing low temperature heat and atmospheric dryness to overcome the desalination energy barrier. The system works best in the dry regions that need water. Saltworks President Joshua Zoshi said, 'a desalination technology powered by atmospheric dryness is very much ...

Nov. 7, 2009

By GLOBE Foundation

Innovative seawater intake for reverse osmosis desalination plants

Seawater desalination plants typically consist of four major unit operations: seawater intake, pretreatment, Reverse Osmosis (RO) stage, and posttreatment and brine discharge. The best way is to go through vertical beach wells, but the increase of the production capacity of the plants built in recent years makes open intake the only solution. These open ocean intakes draw seawater through the ...

Jun. 26, 2008

By Inderscience Publishers

Experiences in the construction and operation of a nuclear desalination demonstration plant

A hybrid desalination system of 6300 m³/day capacity has been envisaged, comprising 4500 m³/day Multi-Stage Flash (MSF) and 1800 m³/day Seawater Reverse Osmosis (SWRO) plants, and sharing basic utilities with Madras Atomic Power Station. The SWRO plant has been commissioned and has been operating for more than two years. The MSF plant is under construction. The construction of the MSF plant has ...

Feb. 21, 2007

By Inderscience Publishers

Effects of drinking desalinated seawater on cell viability and proliferation

Desalination of seawater is becoming an important means to address the increasing scarcity of freshwater resources in the world. Seawater has been used as drinking water in the health, food, and medical fields and various beneficial effects have been suggested, although not confirmed. Given the presence of 63 minerals and trace elements in drinking desalinated seawater (63 DSW), we evaluated ...

Feb. 6, 2017

By IWA Publishing

Carlsbad Project - the largest desalination plant in the Western Hemisphere and a complete game changer for desalination in the US case study

An award-winning desalination project for the San Diego County Water Authority (SDCWA) that will provide clean water to about 300,000 people and generate over $50m annually to the regional economy. The plant overcame significant practical, regulatory and economic hurdles to deliver a cost effective and environmentally friendly water supply. IDE and its partners worked for more than 10 years ...

Mar. 2, 2015

By IDE Technologies

Submerged membrane coagulation hybrid system as pretreatment to organic matter removal from seawater

In this study, a commonly used ferric chloride was utilised as coagulant for removing organic compounds from seawater. More than 57% of dissolved organic carbon (DOC) was removed at optimum dosage of 3 mg Fe+3/L. The coagulation by FeCl3 at optimum dosage could remove a majority (95%) of hydrophobic compounds. The results from Liquid Chromatography – Organic Carbon Detector showed that only ...

Jan. 1, 2011

By IWA Publishing

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