Haiti, Materials, Nanofiltration, Reverse Osmosis, Malta


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Pedal-powered nanofiltration kits sent to Haiti

Researchers from the Department of Environmental Science & Engineering at South Korea's Gwangju Institute of Science & Technology (GIST) sent several human-powered nanofiltration (NF) water- treatment systems to the earthquake victims of Haiti in January.

ITT donates five RO-based treatment units to Haiti

ITT Corporation announced on 22 February 2010 that, through its partnership with Mercy Corps, the company is donating five portable water treatment systems in Haiti, providing enough potable water each day for up to 200,000 victims of the 12 January 2010 earthquake.

RO units diverted from Bermuda to Haiti

Two reverse-osmosis (RO) desalination units scheduled for a client in Bermuda have been diverted for Haiti earthquake disaster relief by Florida-based Water Treatment Systems Inc (WTS).

Ceramic nanofiltration company gets big investor

ItN Nanovation AG, a start-up company in Saarbrucken, Germany, making nanofiltration ceramic products for the water industry, announced on 9 December 2010 a framework investment agreement with the US investment fund YA Global Master SPV Ltd, part of the Yorkville Group.

RO consumes 4% of Malta's electricity, says new group

Reverse-osmosis desalination plants consume almost 4% of Malta's electricity supply, according to a statement from the newly-formed Malta Water Association (MWA) on 22 March 2011. The group, made up of hydrologists, engineers and other water experts, warned that urgent action is needed to protect Malta's water resources, which "are among the scarcest in the world and under severe stress."

UF units from Innovative bound for Arizona and Haiti

Eight ultrafiltration (UF) drinking water treatment plants are to be provided by Innovative Water Technologies Inc (IWT) for the Central Arizona Project in remote locations throughout Arizona, USA. Units are also being sent urgently to Haiti.

Tunisia and Malta to share desalination expertise

Tunisia has signed an agreement with the Mediterranean island of Malta involving sharing of expertise on desalination plants.

World's largest membrane leachate-treatment plant handed over

Norit X-Flow and ISTAÇ (Istanbul Metropolitan Municipality Environmental Protection & Waste Materials Valuation Industry) celebrated the handover on 17 August 2010 of a notable wastewater treatment project: the treatment of leachate from the Istanbul landfill in Odayeri and Kömürcüoda.

AMTA/NWMOA Utah workshop program published

The American Membrane Technology Association (AMTA) has published the program for its joint technology transfer workshop with the Northwest Membrane Operator Association (NWMOA) in December.

Dr Isabel Escobar

Escobar appointed as editor-in-chief of IDA journal

Dr Isabel Escobar of the University of Toledo, Ohio, USA, has been appointed by the International Desalination Association (IDA) to succeed Dr Jim Birkett as editor-in-chief of the IDA Journal of Desalination & Water Reuse.

EDS holding membrane training week in L'Aquila

The European Desalination Society is holding a membrane training week in L'Aquila, Italy, on 30 September - 4 October 2013 presenting two back-to-back seminars by David Paul.

Can$ 4.7 million new orders for H2O Innovation

A 1.1 MGD (4,200 m³/d) ultrafiltration (UF) drinking water system for a community in British Columbia, Canada, is one of new contracts worth Can$ 4.7 million (US$ 4.6 million) announced on 6 June 2013 by H2O Innovation Inc.

EDS publishes details of membrane design course

The European Desalination Society (EDS) has published details of its first event in 2013, a three-day intensive course on Membrane Technology Process & System Design.

H2O Innovation takes Californian reuse contract

A contract to expand the Leo J Vander Lans Advanced Water Treatment Facility in Long Beach, California, has been awarded to Canadian company H2O Innovation Inc.

Proposals sought for membrane-integrity test method

The WateReuse Research Foundation has issued a Request for Proposals to create a method for testing the integrity of high-pressure membranes used for nanofiltration (NF) and reverse osmosis (RO) in water treatment and desalination.

SWMOA seeks papers for 2013 San Diego symposium

The Southwest Membrane Operator Association (SWMOA) has made a call for papers for its 2013 Annual Symposium in San Diego, California, on 22-24 April 2013.

H2O Innovation wins Canadian and US contracts

A 5,000 m³/d nanofiltration water treatment plant is to be provided for the city of Saint-Tite, Quebec, Canada, by H2O Innovation Inc.

AMTA/WEF workshop set for Seattle in May

The American Membrane Technology Association (AMTA) has announced that it will be holding a Technology Transfer Workshop in Seattle, Oregon, in May in cooperation with the Water Environment Federation (WEF).

EDS adds SDI Workshop to Barcelona events

The European Desalination Society has added a workshop on the Silt Density Index to the satellite events around its upcoming Barcelona conference, the society confirmed in an announcement on 12 March 2012.

Oil/gas sector MBR leads new H2O Innovation jobs

Supply of a membrane bioreactor (MBR) wastewater treatment and reuse system to an industrial user in the oil and gas industry in Alberta, Canada, was announced by H2 O Innovation Inc on 8 March 2012.

Jack August to give AWWA/AMTA keynote speech

Dr Jack L August Jr, historian and executive director of the Barry Goldwater Center for the Southwest and visiting scholar in legal history at Snell & Wilmer LLP will be keynote speaker at the AWWA/AMTA Membrane Technology Conference & Exposition, which opens in Pheonix, Arizona, next week.

New contracts end H2O Innovation's year strongly

Canada's H2O Innovation Inc is to supply membrane nanofiltration (NF) water supply systems to two municipalities in Canada and expand an existing system in a third, among contracts totaling Can$ 8 million (US$ 8.25 million) announced on 6 July 2011.

Opening of Woongjin's new American HQ.

Woongjin opens all-Americas headquarters and factory

A new American headquarters and membrane manufacturing facility was opened on 5 April 2011 in Anaheim, California, by Woongjin Chemical America Inc, manufacturer of CSM reverse-osmosis and nanofiltration membranes for desalination and water treatment.

Sinochem setting up seawater desalination industrial base

Sinochem Corp held a ground-breaking ceremony for a seawater desalination industrial base in Hangzhou, China, on 22 March 2011, coinciding with World Water Day

Ceramic filters bought for Saudi RO pretreatment

German start-up company ItN Nanovation AG, which makes nanofiltration ceramic products for the water industry, announced on 15 March 2011 an order in Saudi Arabia for its CFM Systems® nanoceramic-based filtration system for water purification.

AMTA/AWWA 2015 membrane conference abstracts invited

The American Membrane Technology Association (AMTA) and the American Water Works Association have issued a call for papers for their fourth joint Membrane Technology Conference to be held in Florida in 2015.

EDS posts desalination courses for early 2011

The European Desalination Society has posted a half-year series of courses on its website for 2011 related to water desalination and membrane technology. All the courses will take place in Pegli, close to Genoa, Italy, at the Hotel Mediterranée.

Pretreatment course scheduled by EDS for May 2010

The European Desalination Society (EDS) on 15 January 2010 announced a four-day course on Pretreatment, membrane fouling and scaling to be held in Genoa, Italy, on 31 May - 3 June 2010.

EDS announces new desalination course

The European Desalination Society is to hold a course on Membrane Technology, Process and System Design in Genoa, Italy, on 3-5 March 2010.

SEDA to hold workshop on pretreatment for RO/NF

The Southeast Desalting Association is holding a workshop on 12 February 2014 at the Town of Jupiter Water Treatment Plant in Florida on Pretreatment for Reverse Osmosis (RO) and Nanofiltration (NF).

EDS announces membrane course in Rome in 2014

The European Desalination Society has announced a three-day intensive course on Membrane Technology, Process & System Design to take place in Italy next March.

Woongjin America changes name to TCK Membrane America

Woongjin Chemical America Inc, which makes both spiral-wound and hollow-fibre desalination and water treatment membranes, has changed its name to TCK Membrane America Inc.

LG Chem bags five orders worth US$ 8 million

LG Chem has acquired new orders for water purification filters totalling US$ 8 million under exclusive deals with five desalination projects. The projects are at sites in Israel, Spain, Malta, Egypt and Mexico, the company said.

Nine desalination studies bag US$ 1.4 million funding

Nine research projects and pilot studies will share US$1.4 million in funding under a desalination and water purification research programme set up by the US Bureau of Reclamation.

Two workshops ahead for SEDA in January

The Southeast Desalting Association (SEDA) is holding two technology transfer workshops in Florida at the end of January 2013.

Desalination drives nanofiltration market growth

Desalination is one of the primary forces behind nearly three quarters of a 15% growth forecast in the nanofiltration (NF) market worldwide that will take it above US$ 445 million by 2019 according to market researcher BCC Research.

H2O Innovation supplies US city with UF, NF and RO

The City of Delaware in Ohio, USA, has awarded a contract to Canada's H2O Innovation Inc for a drinking-water production system involving ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO).

SAROS — Swell Actuated Reverse Osmosis System — utilises wave power to desalt water

Wave-powered design duo aim to crowd-fund desal pilot

SAROS, a design for a seawater RO desalination system powered by the energy in ocean waves, has kicked off an Indiegogo crowd-funding campaign to raise $25,000.

Weir Materials acquired by Rolled Alloys

The Weir name finally dropped out of the desalination mainstream in mid-October when Weir Materials was acquired by Rolled Alloys (RA) a US-based supplier of heat-resistant and corrosion-resistant alloys and branded stainless steels.

Membrane market growth to run until 2020

The fruits of growing research and development in forward osmosis for desalination are highlighted in a recent sector report as drivers of growth in the market for membrane separation technologies running to at least 2020.

IDA World Congress on Desalination and Water Reuse will make a return visit to Dubai in 2019

IDA to return to Dubai for World Congress 2019

The International Desalination Association (IDA) is to return to Dubai, United Arab Emirates, for its World Congress in 2019, building on the earlier success of the IDA World Congress held in the emirate in 2009.

Maltese desalination test-bed shows SalTec energy-recovery advantages

Throughout the desalination industry, plant operators are looking for long-term solutions with lower lifecycle cost because of the link between water costs and energy costs. In order to meet operators' demands and requirements, equipment manufacturers are investing considerable resources in the development of new technologies that will reduce energy costs. The Water Services Corporation in Malta is one example of a forward-looking operator of a seawater reverse-osmosis (SWRO) plant seeking to ensure the production of high-quality drinking water at an affordable price. Established in 1993 to produce and distribute potable water on the islands of Malta and Gozo, WSC has an annual production target of 35 million m to satisfy the needs of its 400,000 residents and in excess of one million tourists. With the drive to produce greater efficiencies and water quality WSC has taken an opportunity to investigate and monitor the potential of a new technology from KSB, the SalTec pressure boosting and energy recovery system. The SalTec DT pressure exchanger in combination with KSB's HGM RO high-pressure pump creates a highly attractive proposition for RO plant designers and operators. The SalTec DT system provides a nominal capacity of 250 m /h, giving it the capability to operate in plants with train sizes ranging between 4,400 m /d and 5,000 m /d of permeate at common recovery rates.

Qala village is at the eastern most point of Gozo Island, close to the main Maltese archipelago

Malta tenders Euro 10 million desalination project

The Water Services Corporation of Malta has issued a tender for a reverse osmosis plant at Hondoq Bay on the Island of Gozo.

APTwater buys remaining Sepro shares from Sojitz

California-based APTwater Rochem® has acquired the remaining shares of Sepro Membranes from its previous joint-venture partner Sojitz Corporation of Tokyo, Japan.

Russia sets up water treatment membrane development project

The Russian Corporation of Nanotechnologies (Rusnano) is to finance a project for producing nanostructured membranes and separation modules for water treatment in various industries.

VSEP NF system used at Brazilian ethanol plant

A full-scale vibratory shear enhanced process (VSEP) membrane separation system has been commissioned successfully by New Logic Research at a Brazilian ethanol plant.

Innovations in IDA Congress technical program

Round-table sessions and touch-screen availability of poster presentations will be used for the first time in the International Desalination Association's World Congress in Dubai on 7-12 November 2009, IDA announced on 19 October 2009.

Tri-Tech to expand large UF/NF plant in China

The City of Ordos in China is to build what will be the largest water treatment plant in the world using ultrafiltration (UF) and nanofiltration (NF) when it expands its existing plant to 148,000 m³/d.

The groundbreaking ceremony in Beijing

Toray sets up membrane JV in Beijing

A groundbreaking ceremony for a large membrane production facility was held in the industrial development area of Shunyi Airport, Beijing, China, on 24 August 2009.

IDA Fellowship winners from Iran and Japan

This year's winners of the International Desalination Association's Fellowship awards come from Iran and Japan, IDA announced on 27 April 2009.

Pentair to buy CPT division from Norit

Pentair Inc is to acquire the Netherlands-based Clean Process Technologies (CPT) division of Norit Holding BV in the second quarter of this year for € 503 million (US$ 705 million), plus net debt at closing.

Canadian municipalities buy nanofiltration systems

Nanofiltration drinking water production systems are to be supplied to two Canadian municipalities, Waterville and Eastman in Quebec, by H2O Innovation.

ALADYR affiliates to International Desalination Association

The Asociación Latinoamericana de Desalación y Reuse del Agua (ALADYR) has become the newest affiliate organization to join the International Desalination Association (IDA), bringing to 15 the number of regional and association IDA affiliates around the world.

Kuwait's 136,000 m³/d Shuwaikh plant awarded to Doosan

Doosan Heavy Industries & Construction won the contract in September for the 136,000 m³/d (36 MGD) Shuwaikh Seawater Reverse Osmosis (SWRO) Desalination Plant, the first in the country to use SWRO. Simultaneously, Doosan awarded the energy-recovery contract to Energy Recovery Inc (ERI).

AMTA webinar to look at Florida nanofiltration plant

The American Membrane Technology Association's next webinar on 28 October 2010 will look at the split-feed nanofiltration plant in Jupiter, Florida.

FCC Aqualia bags Chile deals

Water management company FCC Aqualia, has won two water supply and purification contracts in Chile's mining and petrochemical industries worth a total of € 27 million (US$ 30.7 million).

Dow gets NF start in Saudi Arabia at Ha'il

The Dow Chemical Company has been chosen to supply water nanofiltration technology to the Ha'il nanofiltration (NF) plant by the Ministry of Water & Electricity in Saudi Arabia.

Toray takeover of Korea's Woongjin Chemical agreed

Japan's Toray Industries Inc announced on 6 November 2013 that Toray Advanced Materials Korea Inc (TAK), its Korean subsidiary, had agreed the same day with Woongjin Holdings Co Ltd and others to purchase a 56.2% stake in Woongjin Chemical Co Ltd for Won 430 billion (US$ 406 million).

Nanoparticles for water and desalination - how safe are they?

The potential dangers from the use of engineered nanoparticles, such as nanotubes, metal oxides or nanodots, some of which form the basis of new solutions for desalination and water treatment, are outlined in a new European Union publication.

2014 Oman conference to look at HABs and desalination

An international conference on Harmful Algal Blooms (HABs) & Desalination is to be held in Muscat, Oman, in April 2014.

Toray set to buy Korea's Woongjin Chemicals

Reports from Korea indicate that membrane-maker Woongjin Chemical is to be acquired by Toray Advanced Materials of Japan.

Chinese licensee joins Dow residential Filmtec program

Haier Group of China, a leading multinational home appliances and consumer electronics company, has become the latest official licensee to partner with Dow Water & Process Solutions in its newly launched Filmtec™ reverse osmosis (RO) ingredient branding program.

Buenos Aires membrane papers deadline 15 June

A deadline of 15 June 2012 has been set for papers for the International Water Association (IWA) 3rd Regional Conference on Membrane Technology.

Osmoflo wins industrial water-reuse project

Australia's Osmoflo has won a tender to design, build, operate and maintain a Aus$ 5 million (US$ 5.3 million) water-recycling plant and reticulation system at the Nyrstar Port Pirie smelter north of Adelaide in South Australia.

Gulf red-tide early-warning system funding 'soon'

A new early-warning system in the Gulf for harmful algal blooms (HABs), also known as red tides, using satellite imagery, remote sensing, and modeling could be one result of a conference on HABs held on 16‑17 April 2014 by the Middle East Desalination Research Center (MEDRC).

New US/Canadian contracts for H2O Innovation

Canadian H2O Innovation Inc announced on 21 December 2011 that it had recently been awarded new membrane water-treatment contracts totalling Can$ 4.7 million (US$ 4.6 million).

H20 wins UF and RO contracts in Canada and US

A contract to augment the capacity of the existing reverse osmosis system of the City of Las Animas, Colorado, is one of a number of recent contracts won by H2O Innovation Inc totalling Can$ 2.7 million (US$ 2.4 million).

Desalitech teams with TEC to target municipalities

Reverse osmosis (RO) specialist, Desalitech, has tied up with Treatment Equipment Company (TEC) to provide sales support for municipal water treatment projects.

Miller Truby joins Professional Water Technologies

Miller Truby has joined Professional Water Technologies (PWT) in the USA as regional account manager.

Water Planet joins forces with Applied Membranes

Water treatment technology firm, Water Planet, and reverse osmosis (RO) systems specialist, Applied Membranes, have formed a strategic alliance to market, sell and service nanofiltration and reverse osmosis based water treatment systems.

SEDA workshop to look at RO operational variances

The Southeast Desalting Association (SEDA) is to hold a Workshop on Brackish and sea water reverse osmosis operational variances in Gibsonton, Florida, at the Tampa Bay Desal II Water Treatment Plant.

New Mexico BWRO seeking waste revenue stream

Processing residual wastes from a proposed brackish-groundwater desalination plant in New Mexico, USA, could provide a revenue of around US$ 4.6 million/year, according to a preliminary engineer report just completed.

IDA announces final academy details for Singapore

The International Desalination Association (IDA) has announced details of its inaugural set of courses and faculty for the new IDA Desalination Academy, which will officially be launched in conjunction with the 2012 Singapore International Water Week.

Mombasa is hoping to become the first African city to host the IDA World Congress

Kenya's a contender for IDA 2021 World Congress

The International Desalination Association (IDA) has shortlisted Mombasa, Kenya, among four finalists to host its 2021 World Congress, reports The Star.

The island of Gozo, part of Malta, currently relies on groundwater extraction for its water supply

Malta to redevelop defunct desalination facility on Gozo island

A defunct desalination facility on Malta's Gozo island is to be redeveloped and brought back into use.

IDA launches reverse-osmosis certification program

The International Desalination Association (IDA) is to launch a reverse‑osmosis training certificate associated with its recently launched IDA Desalination Academy.

Mega-ton project symposium set for Tokyo in November

A symposium is to be held in Japan in November 2013 centred on the Mega-Ton Water System, a national research program to develop sustainable water treatment technologies, including large-scale desalination, that have a low environmental load and are energy-saving and low in cost.

Nine water purification projects bag US$ 1.49 million in funding

The US Bureau of Reclamation has selected nine projects to receive US$ 1.49 million under its Desalination and Water Purification Research programme.

Energy Recovery bags US$ 1 mlllion US deal duo

Flow energy technology firm, Energy Recovery,  has won US$ 1 million in deals for desalination projects in California and Texas.

Tonner to join Consolidated Water as COO

Experienced desalter John Tonner is joining Consolidated Water Co Ltd as chief operating officer from 1 September 2011.

CDA/EDS seeking Qingdao desalination abstracts by 15 March

Abstracts for the 2011 Qingdao International Desalination Conference in China (20-23 June 2011) must received by 15 March 2011 with final papers by 10 May 2011.

Aquatech wins Mongolian ZLD job

Aquatech has been awarded a contract for a 2,400 m³/d zero liquid discharge (ZLD) plant for a coal-to-chemicals facility in Hailer in Inner Mongolia.

MIT spinout cracks fracking water waste

A Massachusetts Institute of Technology (MIT) spinout, Gradiant Corporation, is working toward making hydraulic fracturing (fracking) a water-neutral process, by making water reuse more economical. Fracking produces millions of litres of wastewater and much of it is discarded into deep injection wells, and clean water has to be purchased.

Desalination demonstration to tackle California's agricultural drainage

Desalination technology is to be used in California's Central Valley to convert high salinity agricultural drainage water into fresh water for irrigation and CO2-negative products derived from the waste salts.

Singapore's PUB draws curtain on algae

Singapore's national water agency PUB has for the first time installed silt curtains at the waters off Tuaspring and Singspring desalination plants, to protect them from damaging fouling of their reverse osmosis membranes by mounting levels of algae in the water.

“The membrane industry as we know it would not exist without Dr Sourirajan’s breakthrough.” Photo credit Krishna Rajan 1967

AMTA's Hall of Fame honours industry pioneers

A raft of industry awards was unveiled at the Membrane Technology Conference 2017, including AMTA's four-strong Hall of Fame 2017, which recognises pioneering careers in membrane technology.

SWMOA looking for Annual Symposium presenters

The Southwest Membrane Operator Association (SWMOA) is looking for presenters for its 2014 Annual Symposium to be held in Santa Rosa, CA in May.

Q&A: AMTA president Brent Alspach on why the need for membranes has never been more acute

In the week of the AMTA/AWWA Membrane Technology Conference 2018, in Florida, US, Brent Alspach, president of AMTA and director of applied research at Arcadis, outlines the water challenges and how current and in-development membrane-based treatments are addressing them.

Papers called for AMTA-SEDA joint conference in Miami

A call has been issued for papers for the joint 2011 American Membrane Technology Association (AMTA) annual conference and exposition with the Southeast Desalting Association (SEDA).

Conwed in feed spacer study

Plastic netting maker, Conwed, has provided its products for a study into options for developing and testing of feed spacers in reverse osmosis (RO) by numerical modelling, three- dimensional (3D) printing of feed spacers and experimental membrane fouling simulator studies.

EDS/Wetsus issues membrane conference call for papers

A deadline of 30 June 2012 has been set for abstracts for the eighth in the series of conferences on Membranes in Drinking & Industrial Water Production, which will take place at Leeuwarden in the Netherlands on 10‑12 September 2012.

Water leads as membrane market to hit US$ 39.2 billion by 2019

The global membrane separation market is expected to grow at a compound annual growth rate (CAGR) of 10.8% from 2013 to reach US$ 39.2 billion in 2019 with water and wastewater leading the charge according to a recent report.

EDS desalination course dates for 2012 published

The European Desalination Society (EDS) has published dates for its series of courses for 2012, which will take place in February, April and June.

Three desalination workshops follow IDA World Congress

Three different aspects of desalination will be covered in workshops announced on 10 September 2009 by the International Desalination Association (IDA), which will follow its upcoming World Congress in Dubai.

Jason Deal to represent PWT in south-west USA

Membrane filtration specialist Professional Water Technologies (PWT) announced on 30 July 2013 the appointment of Jason Deal as regional sales manager, based in Florida.

Desalination and reuse in California/New Mexico get funding

US Secretary of the Interior Ken Salazar announced on 1 July 2009 27 water reclamation and reuse projects in California and New Mexico identified by the Bureau of Reclamation to share in a total of US$ 134.3 million under the American Recovery & Reinvestment Act of 2009.

Toray acquires TCK

Toray Industries' US membrane arm has bought TCK Membrane America - a manufacturer of reverse osmosis /nanofiltration (RO/NF) membranes in Anaheim, California.

Desalination using forward osmosis with nanofiltration membranes

Forward osmosis (FO) is an emerging membrane technology, often used for desalination. Like reverse osmosis (RO), FO uses a semi-permeable membrane to separate water from dissolved solutes. The semi-permeable membrane acts as a barrier that allows water to pass through while blocking salts. Generally, any dense, non-porous, selectively permeable material can be used as a membrane for FO. Professor Chung invented a novel polybenzimidazole (PBI) nanofiltration (NF) membrane with a narrow pore size and high flux for the FO process. PBI was chosen mainly because of its robust mechanical strength and excellent chemical stability. However, at high ionic strength (normal in FO applications) and normal operational pH values, the charge of the membrane surface is neutral, leading to a decrease in electrostatic repulsion between the membrane surface and electrolytes to be rejected. Consequently, monovalent salts rejection decreases. Ideal NF membranes for FO would be highly negatively charged at most pH values. Additionally, these membranes are hydrophobic and have a propensity to foul during operation. Therefore, this collaboration is performing research to improve the separation performance of the PBI FO membrane by (1) lowering membrane fouling via chemical modification, and (2) increasing its monovalent salt-rejection via membrane surface modifications. Since these properties are given to a porous PBI NF membrane instead of the conventionally used dense RO membranes, this project has the potential to revolutionize the field of desalination using FO. Development of a desalination process technology using the FO route has the potential to achieve up to a 75% decrease in costs and energy consumption in desalination, in comparison with conventional thermal or RO processes. This technology is still undergoing research. Acknowledgments The source of funding was the National Science Foundation, NSF OISE 0832894. This article appeared in D&WR magazine's May/June 2009 issue.

Large Diameter RO Desalination Elements

In recent years, increasing the diameter of spiral elements has been studied as a method of lowering the cost of membrane treatment. It has been shown that the installed cost of a reverse osmosis (RO) plant can be reduced by up to 27% using larger diameter elements.Large diameter elements provide savings in footprint and building costs, as well as savings in the number of connections, to reduce the installed cost of a brackish water RO or nanofiltration (NF) system. This article presents case studies where large diameter reverse osmosis (RO) elements were used, including the reasons why large diameter elements were selected for specific projects. Systems desalinating brackish groundwater for potable water supply in the United States include the City of Goodyear, Arizona; the City of Waupun, Wisconsin; and the Tate-Monroe Water Association of Ohio. In Australia, the Bundamba AWT Plant in Queensland treats municipal effluent for reuse. At Joe White Maltings, an integrated membrane system, combining a membrane bioreactor (MBR) and an RO system, allows wastewater from the plant to be recycled. This article appeared in D&WR magazine's February/March 2009 issue.

EDS publishes dates for 2013 courses

The European Desalination Society has published dates for two courses in the first half of 2013.


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