Nanofiltration, Saudi Arabia, Malta, Malta, Tunisia


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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.

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."

The most-read stories on desalination and water reuse in 2018 around the globe

Most-read: our top 20 stories of 2018

The year 2018 was dominated by big project tenders in the Middle East, especially Saudi Arabia. Water. desalination + reuse rounds up the top stories from our industry.

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 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.

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.

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.

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.

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.

Tunisia poised to tender for Sfax desalination plant

Tunisia's national water company, Sonede, is poised to launch a tender for the construction of its 150,000 m³/day desalination plant at the coastal city, Sfax in May 2015.

Tunisia desalination project completes feasibility check

Tunisia's National Water Company has completed a feasibility study for a seawater reverse osmosis desalination plant to be located at Zaarat, in the south east of the country. The plant will be constructed in two 50,000 m³/d phases.

Korean-led venture strikes Tunisian desalination plant deal

South Korean-owned, water treatment company GS Inima Environment has secured a €69.4 million ($93.9 million) deal to build a desalination plant in Tunisia.

KfW signs Djerba desalination loan agreement in Tunisia

Tunisia's Société Nationale d'Exploitation et de Distribution des Eaux (SONEDE) signed an agreement on 22 August 2013 with the German development bank KfW for a loan of around € 60 million for the Djerba seawater desalination plant.

Three desalination plants for south Tunisia in 2011

The Tunisian government announced on 30 August 2010 that Société Nationale d'Exploitation et de Distribution des Eaux (SONEDE), the national water agency, had developed a plan for the creation in 2011 of three water desalination plants in the Gabes region at a total cost of more than TND 14 million (US$ 9.4 million).

Desalination booming in Tunisia

Desalination in Tunisia took a major step forward in July with the award of the 50,000 m³/d Djerba seawater desalination contract to a consortium including Befesa of Spain, announced on 14 July 2010, and the launch of a tender for the supply of ten brackish-water desalination plants at the end of the month.

Bank agrees desalination study funding in Tunisia

A study of seawater desalination at Zarat, Tunisia, was one of nine projects and programs given grants by the African Development Bank (AfDB) in agreements signed with the Tunisian government on 12 March 2010.

Tenders soon for Tunisian desalination plants

International tenders were due to be invited in October 2008 by the Tunisian water company Sonede for the remaining 11 of 14 desalination plants to be built as part of a national program to improve water supply in southern Tunisia.

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

UK/Saudi initiative targets low-cost carbon neutral desalination using solar dome

NEOM has signed an agreement with UK-based Solar Water Plc to build the first ever "solar dome" desalination plants in NEOM, northwest Saudi Arabia. The pilot project claims it will revolutionise the water desalination process.

Swcc and Hyrec sign MOU to use Hyrec's concentration technology at SWCC plants

Saudi Arabia's Saline Water Conversion Corporation (SWCC) and Hyrec Technologies Ltd. have signed a Memorandum of Understanding to deploy Hyrec's Osmotically Assisted Reverse Osmosis (OARO) technology for Zero Liquid Discharge desalination in the Kingdom of Saudi Arabia.

Saudi's PIF is upping its stake in Acwa Power

Saudi's PIF to raise stake in Acwa Power

Saudi Arabia's Public Investment Fund (PIF) is to raise its stake in Acwa Power to 40 per cent up from 25 per cent, reports Reuters.

The new mega-size desalination facility will be situated on the Red Sea coast

Marubeni-led group wins Shuqaiq 3 project

A consortium led by Marubeni Corporation is to invest $600 million in Shuqaiq 3 desalination plant project in Saudi Arabia.

The Saudis are running a competitive bidding process for the supervisory contract

Saudi's WEC prequalifies eight firms for supervisory contract

Saudi Arabia's Water and Electricity Company (WEC) has pre-qualified eight companies to provide supervisory consultancy services on its desalination projects.

The new research paper synthesises data to create a world map of brine production

UN urges desalination industry to improve on brine

The United Nations has called on the desalination industry to clean up its act on brine as the number of desalination plants worldwide continues to climb.

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.

The new membrane facility will serve markets across the Middle East, North Africa and Asia

DuPont opens membrane factory in Saudi Arabia

DuPont Water Solutions has opened a new membrane manufacturing facility in Saudi Arabia.

The cost per cube of desalinated water bid on the planned Taweela mega-plant in Abu Dhabi is among the world's cheapest

Seven bidders line up for Abu Dhabi mega-project

Abu Dhabi Department of Energy has unveiled the seven consortia bidding for Taweela desalination plant mega-project, with the lowest price coming from ACWA Power at $0.49 per cube.

The new adsorption-based facility will use solar energy to power the desalination process

Saudi Arabia to build solar-powered, adsorption desalination plant

Saudi Arabia is building a solar-powered desalination plant using adsoprtion technology, in one of seven strategic projects that include the nation's first nuclear research reactor.

SWCC's tender for nine desalination plants has been reissued

SWCC asks firms to resubmit bids on nine plants

Saline Water Conversion Corporation of Saudi Arabia has invited firms to resubmit bids on nine desalination plant projects that were brought forward in January 2018, reports MEED.

The new desalination capacity is part of Saudi Arabia's water sector privatisation programme

Bidding shapes up for Shuqaiq 3 desal plant

Six consortia have bid for Shuqaiq 3 desalination plant project in Saudi Arabia, a public-private partnership expected to include a 25-year concession.

ACWA Power has pipped rivals to the post by a single cent

ACWA Power shaves $0.01 off next-best price in Rabigh 3 bidding

ACWA Power is offering the most competitive price by $0.01 out of five bidding consortia for Rabigh 3 independent power and water project.

The contract was signed by Saudi minister of environment, water, and agriculture Abdulrahman Al-Fadhli (right), and Jesús Sancho, Acciona managing director for the Middle East

Acciona Agua wins E200 million Al Kohbar desal contract

Acciona Agua has won a Euro 200 million ($232 million) contract to design and build Al Khobar desalination plant on Saudi Arabia's east coast.

Saudi Arabia's Saline Water Conversation Corp has procured the desal units with a view to moving them around the country's coastline

SWCC procures three floating desalination units

Saudi Arabia's Saline Water Conversion Corporation has procured three desalination units to provide floating capacity of 150,000 m3/d of drinking water over 20 years.

Hyflux is pursuing a restructuring of its liabilities

Hyflux exits contract with SWCC amid company reorganisation

Hyflux has quit a contract with Saudi Arabia's Saline Water Conversion Corporation (SWCC) for three seawater reverse osmosis (SWRO) plants, amid moves to restructure the company.

The Resource Watch platform from the World Resources Institute used global horizontal irradiance (GHI), a proxy for the strength and concentration of star energy hitting a PV panel, to create the ranking

Top 20 water-stressed countries with solar potential

The World Resources Institute (WRI) has named the world's top 20 most water-stressed countries which have the most solar energy potential.

The demonstration project will draw on lessons from the Mega-ton Water System, whose aim was to create a paradigm shift in energy consumption for reverse osmosis desalination

Hitachi and Toray target 20 per cent RO energy reduction in Saudi demo

Hitachi and Toray are to demonstrate a low energy seawater reverse osmosis (SWRO) system in Saudi Arabia, in a project that will draw lessons from the Mega-ton Water System.

Piedmont is boosting business globally with new contract wins

Piedmont signs new supply and distribution contracts

Piedmont, a producer of corrosion resistant equipment for desalination plants, has signed a roster of new supply and partner distribution agreements globally.

The Saudi government aims to generate up to SAR 40 billion ($10.7 billion) through privatisation

Saudi Arabia outlines privatisation plans for water, and more

Saudi Arabia has outlined its privatisation programme to generate SAR 35 to 40 billion ($9.3 to $10.7 billion) in non-oil government revenues by 2020.

The new seawater desalination capacity will support development in Dhofar Governorate, Oman

OPWP signs ACWA Power, Veolia and Dhofar Development for Salalah project

Oman Power and Water Procurement Company (OPWP) has signed ACWA Power Saudi Arabia, Veolia Middle East, and Dhofar International Development and Investment, on a build, own and operate contract for Salalah Water Desalination Plant.

The Global Water Awards winners are awarded through voting by industry professionals

Suez and Middle East plants top 2018 Global Water Awards

Suez has scooped the Desalination Company of the Year Award, and Middle East facilities topped the desal plant categories at this year's Global Water Awards from Global Water Intelligence (GWI).

Jubail phase 3 water and power project is a significant move in Saudi Arabai's shift toward reverse osmosis

EOI request is out on Jubail phase 3 desal mega-project

Saudi Arabia's Water and Electricity Co has requested expressions of interest on Jubail phase 3, an integrated water and power project to include 1.17 million m3/d of desalination.

Shuqaiq is in the south of Saudi Arabia, near the border with Yemen

Saudi Arabia's WEC pre-qualifies bidders for Shuqaiq 3

Saudi Arabia's Water and Electricity Company (WEC) has pre-qualified 15 companies for Shuqaiq 3 desalination plant project.

Saudi Arabia is investing in temporary as well as long-term desalination capacity

SWCC poised to invite bids for mobile desal capacity

Saudi Arabia's Saline Water Conversion Corporation (SWCC) is poised to invite bids from mobile desalination providers to augment supplies until its planned large scale projects start producing.

GrahamTek is an innovator in 16-inch reverse osmosis membrane technology

GrahamTek wins contract for SWCC pilot project

GrahamTek of South Africa has won a contract for a desalination pilot project for Saline Water Conversion Corporation (SWCC), Saudi Arabia.

Saudi Arabia's minister of environment, water and agriculture Abdulrahman Al-Fadlhi has welcomed investment to improve the country's desalination portfolio

Saudi's Al-Fadhli gets the go-ahead for nine new desalination plants

Saudi Arabia has an ambitious $530 million programme to build nine new desalination plants on the Red Sea coast within 18 months, the minister of environment, water and agriculture Abdulrahman Al-Fadhli has revealed.

Saudi Arabia's Red Sea coast is the site for the two mega-size seawater reverse osmosis projects

Saudi Arabia's WEC seeks developers for two mega projects

Water and Electricity Company (WEC) of Saudi Arabia has requested expressions of interest on two new mega seawater reverse osmosis desalination plant projects.

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.

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.

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.

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.

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.

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).

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.

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.

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.

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.

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.

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).

Tunisia has a programme of water projects designed to reduce reliance on groundwater sources

KfW finances Euro 82 million Tunisian desalination project

KfW Development Bank is to loan €82 million ($95 million) to Tunisia for a desalination plant in Zarat, Gabes Governorate, reports Tunis Afrique Presse.

Djerba desalination plant was designed, built, and commissioned by FCC Aqualia and Inima

Tunisia officially opens its first desalination plant

Tunisia's first desalination plant was officially opened by prime minister Youssef Chahed on 3 May 2018.

The island of Djerba, off the coast of Tunisia, is home to a new 50,000 m3/d desalination plant

Tunisia's SONEDE details programme of desalination plants

Tunisia's water utility, SONEDE, has shared details of recently completed and future desalination projects, including groundwater and seawater plants.

IDA on road to Morocco in March 2012

The International Desalination Association (IDA) has announced the first event of its kind in the North Africa region, a conference on desalination and sustainability in partnership with the Societé Marocaine des Membranes et de Dessalement (SMMD).

Cadagua to get 75,800 m³/d Moroccan desalination plant

Spain's Cadagua has been given a letter of intent for award of a 75,800 m³/d desalination plant in the Jorf Lasfar industrial complex in Morocco, 100km south of Casablanca.

The city of Sfax is at a central point along Tunisia's Mediterranean coastline

Tunisia's SONEDE secures $328 million for Sfax seawater desal project

Tunisia's national water utility SONEDE has secured a loan of JPY 36.7 billion ($328 million) from Japan International Cooperation Agency (JICA) to build a seawater desalination plant at Sfax.

Q&A Ziad Bouars: "When you come it's just sand"

Ziad Bouars, commissioning manager at Sidem-Veolia, explains why he has no intention of swapping a projects role out in the field for a desk job back at head office

Abu Dhabi rejects more desalination despite growing water stress

Environment Policy and Planning at Environment Agency - Abu Dhabi (EAD) has rejected upping desalination as a means to counter growing water scarcity in the emirate, opting instead for conservation and reuse.

The new plant will be located at Zarat on the Mediterranean coast

Va Tech Wabag secures Tunisian desalination project

VA Tech Wabag has secured a contract for a 50,000 m3/d desalination plant in Zarat, Gabes governorate, Tunisia.

USEPA chief briefs Senate on dangerous contaminants

Perchlorate, chromium-6 and volatile organic compounds (VOCs) in drinking water were all discussed by the US Environmental Protection Agency's administrator, Lisa P Jackson, in testimony before the Senate Committee on Environment & Public Works on 2 February 2011.

UK water nano group to be launched at February workshop

The programme has been announced for a UK nanotechnology for water event to be held at University College London (UCL) on 15 February 2011, which will provide an official launch for the EcoNano Focus Group.

Figure 1: Fabric in hollow fine fibre permeator of Du Pont Permasep

Why MFI is edging SDI as a fouling index

PARTICULATE FOULING has plagued reverse osmosis (RO) systems since their first use in desalination and remains a persistent issue today for RO and other pressure-driven systems such as microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF). In the early 1960s, the Du Pont company/Permasep Product successfully launched the hollow-fine-fibre (HFF) permeator onto the desalination market, where it dominated for several decades. A well-known weakness of this permeator was its vulnerability to fouling. Initially, this vulnerability was attributed to suspended and colloidal matter in the feed water, ie, particulate fouling. Therefore, Du Pont developed, the Silt Density Index (SDI), initially named the Fouling Index, as a parameter to characterize the fouling potential of the feedwater for permeators. The fouling mechanism turned out to be more complicated than just fouling of the membrane surface as initially assumed. Gradually it became clear that the fouling was initiated by local clogging of the woven or non-woven fabric between the fibres, which is needed to ensure equal flow distribution of the feed water (see Figure 1). This article first appeared in the issue of Desalination & Water Reuse magazine.

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.

HTI deal takes forward osmosis to China

The world's only commercial manufacturer of forward-osmosis (FO) membranes, modules and systems, Hydration Technologies Innovations LLC (HTI), reached an international distribution, services and cooperation agreement for FO technology with Chinese company Tri-Tech Holding Inc.


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