Forward Osmosis, Fouling


Related content

Masterclass webinar to look at combining reuse and desalination using forward osmosis

Award-winning researcher, Gaetan Bandin, will present the next Desalination and Water Reuse Masterclass Webinar on 30 June looking at opportunities and challenges for forward osmosis and pressure assisted osmosis (PAO) to combine water reuse and desalination.

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.

Woongjin backs Californian FO membrane‑maker

Korean membrane company Woongjin Chemical Company has signed an agreement with California startup Porifera Inc providing investment for the Silicon Valley company to develop, manufacture and commercialize forward osmosis (FO) membranes at high volume.

IDA announces lecturers for next Academy session

The International Desalination Association (IDA) has announced the line-up for the next one-day course in its Desalination Academy, which will take place on 5 December 2012 in Jeddah, Saudi Arabia, alongside the Saudi Water & Power Forum.

China opens laboratory to drive forward osmosis development

A pairing of leading players in China's water and petrochemicals industries have launched a venture to develop forward osmosis in seawater desalination that they claim will: "open up a new way for zero liquid discharge (ZLD) in seawater desalination of seawater resources with low energy consumption."

Cost, regulation and water scarcity are driving a shift in mindset toward resource recovery in brine treatment

The Long Read: Where's the innovation in brine treatment?

As water scarcity bites and the drive to recycle water grows, the focus on recovering clean water and other resources from brine is sharpening. The challenge is particularly pertinent for industrial operators.

Study shows novel heavy-metals-from-wastewater method

Scientists in Singapore and Saudi Arabia have reported a novel method for extracting toxic and valuable heavy metals from wastewater using forward osmosis (FO).

Oasys forward osmosis concentrates in China

Massachusetts-based Oasys Water has claimed its recent contract to supply a forward osmosis brine concentrator to a fossil-fuelled power plant in China to be a world first.

US research challenges value of forward osmosis in seawater desalination

Researchers in the US have claimed that forward osmosis desalination of seawater is significantly less energy efficient than reverse osmosis

Researchers cast doubt on economics of osmotic power

New research findings have questioned the economics of power production from pressure retarded osmosis (PRO).

Masdar picks four firms to test new desalination techniques

Abu Dhabi clean energy company, Masdar, has selected four international water technology firms to test techniques that could reduce the energy intensity of desalination and lead to a large renewably powered water purification station.

Desalination quartet booked for Masdar pilot plants in UAE

Three major contractors in the global desalination business - Abengoa, Degrémont and Sidem/Veolia - together with forward-osmosis developer Trevi Systems, were awarded contracts on 5 May 2014 by Abu Dhabi's Masdar, to each start the construction of a 1,500 m³/d desalination plant as part of Masdar's pilot project announced in 2013.

Forward-osmosis companies launch international association

Four companies specializing in forward osmosis membrane technology launched the International Forward Osmosis Association (IFOA) on 7 April 2014.

Oasys announces sales hook-up with oil & gas servicer

Forward-osmosis specialist Oasys Water announced on 12 December 2013 that it had recently signed an exclusive sales agreement with National Oilwell Varco LP (NOV), a leading global provider of equipment and services used in the oil and gas market.

Modern Water set for first FO desalination plant in China

Modern Water is set to build a forward-osmosis (FO) desalination plant in Xugong Island, China, as a result of one of three deals signed by the UK company during a trade mission to China led by UK prime minister David Cameron.

Low-energy desalination trials delayed

Trials of four new energy efficient desalination systems from leading water technology players that could "revolutionise the industry" have been delayed from their summer 2015 start with October forecast as the date when all will be in pilot operation.

Modern Water gets £ 9.5 million from share issue

UK forward-osmosis (FO) and monitoring specialist Modern Water plc announced on 12 February 2013 that it had raised, subject to certain conditions, £ 10.0 million (approximately £ 9.5 million net of expenses) by way of a placing of 20,000,000 new ordinary shares with both new and existing institutional shareholders at a price of £0.50 per ordinary share.

IDE to design PRO power-generation pilot in Norway

The Norwegian renewable-energy company Statkraft has made an agreement for IDE Technologies to design and later purchase and construct a 2 MW osmotic power-generation pilot plant in close cooperation with Statkraft.

Chinese website and new director for Modern Water

UK forward-osmosis specialist Modern Water plc has recently appointed William Harvey as its director of strategy and new business development for its Membrane Processes division as well as its electrocoagulation products.

Modern Water ties in with Chinese partner

UK forward-osmosis desalination developer Modern Water plc has signed a framework agreement with Hangzhou Development Center of Water Treatment Technology Company Ltd (Hangzhou Water) in China.

Moore takes over engineering for Modern Water

Brian Moore has left Thames Water to become Modern Water's new engineering manager as part of the UK membrane desalination company's planned growth in its engineering department.

Small FO desalination plant commissioned in Oman

A 200 m³/d forward-osmosis (FO) desalination plant has been commissioned by Modern Water at Al Najdah in the Al Wusta region of Oman.

The water supplied will be used for agriculture and hydroelectric applications in Beit She’an valley, Israel

IDE wins brackish water desal plant contract in Israel

IDE Technologies has won a project to build and operate a brackish water reverse osmosis (BWRO) plant in Emek Hamainot, Israel.

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.

Oasys deal to treat Texas produced water with FO

Oasys Water has struck an agreement with Houston-based Select Energy Services, LLC (SES), a leading provider of engineered water solutions to the oil and gas industry, for exclusive use of its forward osmosis (FO) technology in the Permian Basin in West Texas and New Mexico, USA.

GE's Muscat takes over as Oasys Water CEO

Former GE executive Bob Muscat has been appointed chief executive officer of Oasys Water, the US forward-osmosis desalination specialist.

FO pilot plant could follow HTI Dubai link-up

Forward-osmosis (FO) system manufacturer Hydration Technology Innovations LLC (HTI) has signed an international distribution, services and cooperation agreement for FO technology with Future Technologies LLC of Dubai. Future Technologies will distribute HTI's FO OsMem™ membrane technology for industrial applications.

IDA lifetime achievement award for Toray's Kurihara

A lifetime achievement award to Dr Masaru Kurihara of Toray Membranes was awarded by the International Desalination Association at its awards banquet which closed the IDA World Congress in Perth, Australia on 8 September 2011.

Modern Water claims first FO commercial desalination contract

UK-based Modern Water has won what is believed to be the first ever forward-osmosis (FO) commercial contract for desalination, following its award of a UK£ 500,000 (US$ 810,000) contract for a 200 m³/d plant by Oman's Public Authority for Electricity & Water (PAEW).

Tri-Tech planning forward-osmosis pilot plants

Chinese water and wastewater treatment company Tri-Tech Holdings announced on 13 May 2011 that its current plans include constructing and operating one or more forward-osmosis (FO) pilot units using technology licensed from Arizona-based Hydration Technology Innovations (HTI).

IDA announces scholarship program winners

Students from Brazil and Singapore are this year's winners of the Channabasappa Memorial Scholarship awarded by the International Desalination Association (IDA).

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.

Membrane 'summit' will precede AMTA conference

The 2nd Osmosis Membrane Summit will precede this year's annual conference of the American Membrane Technology Association (AMTA) in San Diego.

Modern Water claims Oman success

Modern Water plc announced on 12 November that its desalination plant in Oman has been successfully commissioned and fresh water production has commenced.

New tech to drive 9.5% annual desalination growth - report

By 2020, the annual supply of water from desalination will have reached 54 billion m³, according to a report released on 17 March 2009 by Lux Research.

The Brackish Groundwater National Desalination Research Facility in New Mexico would become a state-of-the art desalination research facility.

US bill seeks major desalination research expansion

US Senate hearings began on 10 March 2009 into a bill on the relationship between energy and water which could have wide implications for desalination research, both in the US and internationally.

TWO process to recover sodium sulphate from ion-exchange

California-based Catalyx Inc has signed a build-own-operate contract with RG Global Lifestyles Inc, which owns Catalyx Fluid Systems (CFS), for a brine dehydration system to facilitate recovery of sodium sulfate from ion-exchange regenerant brine.

Forward-osmosis patent filed by QuantumSphere

Another forward-osmosis process has taken a step forward. QuantumSphere Inc filed for a US patent on 14 January 2009 for its water purification process, which, it claims, serves as a more energy-efficient alternative to desalination methods now commonly used.

Combining Forward Osmosis with Reverse Osmosis

A combination of forward osmosis with reverse osmosis could facilitate the treatment of some high fouling wastewaters. The system uses brine to draw water from the wastewater without high pressure or turbulence. Key element is the membrane's ability to allow rapid passage of water without much internal concentration polarization. The diluted draw solution can then be desalinated by reverse osmosis. The Two-Way Osmosis or TWO system may also be usable in very remote areas, where seawater ponds can be built for evaporative recovery of salt. Catalyx is designing a pilot system (patent pending) to desalinate seawater without external electric power. This article was published in the May/June 2009 issue of Desalination & Water Reuse.

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.

Melbourne researchers' anti fouling membrane claim

Researchers from the Melbourne School of Engineering at the University of Melbourne have developed what they claim to be an anti fouling microfiltration system that outstrips existing technology on energy efficiency with negligible compromise on performance.

Live Webinar Masterclass - Membrane Fouling Control

The first in a series of Desalination and Water Reuse Masterclass webinars will run on 12 February this year. Each event will offer practical, readily applicable guidance delivered by an expert in the topic covered.

Researchers uncover new membrane fouling mechanism

Researchers have uncovered "an additional reverse osmosis (RO) membrane fouling mechanism" arising from organic compounds present in ultrafiltration (UF) permeate during wastewater desalination.

SEDA to hold May Day membrane cleaning workshop

The Southeast Desalting Association is holding a workshop in Cape Coral, Florida, on 1 May 2014 focused on reverse osmosis (RO) membrane cleaning.

SEDA December workshop to look at chemicals for RO

The Southeast Desalting Association (SEDA) has announced a technology transfer workshop on Chemical Treatment for Reverse Osmosis (RO) to be held in Palm Bay, Florida, in December 2013.

Nearly 200 abstracts received for AMTA/AWWA conference

The American Membrane Technology Association (AMTA) says that 193 abstracts have been received for its joint conference next year with the American Water Works Association (AWWA) in San Antonio, Texas.

AWA to hold membrane fouling master class

Membrane fouling is to be the subject of a master class to be held by the Australian Water Association (AWA) in November 2012.

H2O Innovation commissions pathfinding Indian membrane plant

Canada's H2O Innovation announced on 31 January 2011 that its Indian joint venture, H2O Innovation India Ltd, had commissioned the 7,000 m³/d membrane water treatment system it had designed for Larsen & Toubro Heavy Engineering (L&T) in Gujarat state.

MIT membrane start-up completes funding round

The conclusion of an initial round of funding for Clean Membranes Inc, a start-up company based in Lexington, USA, will permit progress on development of a new generation of non-fouling membranes usable for sea and brackish water desalination.

Korean membranes chosen for Iranian process water

CSM fouling-resistant reverse-osmosis membranes, manufactured by Woongjin Chemical of South Korea, have been selected for the Fajr Phase II Project in Iran to help reduce biological fouling and scaling.

Drinks on the International Space Station

NASA, space flight, water recycling and forward osmosis

For manned space vehicles and especially for the International Space Station, America's National Aeronautics & Space Administration (NASA) has had to invent and adapt many technologies. Not least among these are those aimed at life support and water supply in particular. In developing these, forward osmosis (FO) is playing a prominent part. NASA Research in FO has demonstrated that it has both spacecraft and terrestrial applications. The terrestrial applications are just now becoming a reality. This article first appeared in the August/September 2011 issue of Desalination & Water Reuse magazine.

Aquaporin Inside membranes replicate nature's own way of filtering water using aquaporin protein

Aquaporin acquisition secures supply of membrane protein

Aquaporin of Denmark is to acquire Golgi, a company established in 2016 that is able to produce aquaporin protein in large quantities.

Modern Water opens new office in Shanghai

UK company Modern Water announced on 26 November 2013 the formation of Modern Water Technology (Shanghai) Co Ltd and the opening of its new office in Shanghai, China.

ERI to cooperate with Koreans on PRO for energy

Energy Recovery Inc (ERI) announced on 15 October 2013 that it has signed a mutual cooperation agreement with Seoul-based global company GS Engineering & Construction Corporation (GS E&C Corp), part of Korean conglomerate GS Group, to significantly advance osmotic power generation using ERI's PX Pressure Exchanger® technology.

Dr Richard Stover pictured at a Japan Desalination Association forum in February 2011.

Stover leaves Oasys for Desalitech

Energy Recovery Inc (ERI) old boy Dr Richard Stover has joined Tel Aviv-based Desalitech, a company with a desalination process that does away with energy-recovery devices.

IChemE forecasts more UK municipal desalination by 2050

By 2050, at least four municipal desalination plants and up to 800 smaller units could be providing water to UK households and industry.

Japanese desalination forum program announced

The program has been announced for the Japan Desalination Association (JDA) 2011 Forum in Tokyo on 16 February 2011.

Registration opened for next IDA Academy courses

The International Desalination Association has opened registration for the next IDA Desalination Academy courses in Singapore on 16‑19 September 2013.

ERI appoints Dyer as CTO

Energy Recovery Inc (ERI) has appointed Tim Dyer as chief technology officer (CTO) to replace Rick Stover, who left ERI in January to join forward-osmosis company Oasys. Previously ERI chief scientist, Dyer will manage all engineering and R&D initiatives.

US researchers develop lean energy membrane-based system

Researchers at Humboldt State University, USA are developing a portable prototype pressure retarded osmosis (PRO) seawater desalination (SWRO) system that exploits the osmotic pressure differential between brine waste from SWRO and wastewater. In turn the system deploys the PRO energy in the SWRO.

Stover becomes Oasys vice-president of engineering

Rick Stover, whose exit from Energy Recovery Inc (ERI) was announced last week, joined Oasys, the developer of Engineered Osmosis™ systems for desalination, energy and resource recovery, as vice- president of engineering, on 19 January 2010.

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.

Singapore and Tianjin next IDA Academy venues

Singapore is the venue for the next course in the schedule of the International Desalination Association (IDA) Academy.

The process container at Al Khaluf.

Forward osmosis is not to be ignored

For about 3 or 4 years now, D&WR has annually requested a feature from Modern Water about the company's development of forward osmosis and its desalination plants in Gibraltar and Oman. So it was with pleasure that we finally received the article below, which shows the consistent strides the firm has been making with the process. This article first appeared in the February/March 2013 issue of Desalination & Water Reuse magazine.

‘Forward osmosis and high recovery reverse osmosis has been fascinating to follow.’ John Williams, Lanxess Sybron Chemicals

Five Minutes With: John Williams, global business development, membranes, Lanxess Sybron Chemicals

Returning to the membrane industry 'feels like a very comfortable transition', says Lanxess new business development hire John Williams

The Oasys pilot plant

Oasys gets $10 million capital

Oasys, the Yale University forward-osmosis desalination start-up company, says that it has secured US$ 10 million in venture capital funding for production of a commercial unit in two years time, says the Boston Globe.

Modern Water's pilot plant was housed in a 20-foot container

Modern Water signs first brine concentration deal after pilot

Modern Water has secured the first sale of its proprietary All-Membrane Brine Concentration (AMBC) technology, to a textile dyes company in India.

Speakers announced for IDA conference in Banff

Speakers and sessions for the May conference on Water Recycling and Desalination for the Oil & Gas Industry have been announced by the organizers, the International Desalination Association (IDA).

Inventor of water technologies Marc Vergnet adjusts the controls on Osmosun, his new solar-powered reverse osmosis desalination system that does not use batteries or energy storage, chemicals, or grid supplies of electricity

Masdar desal pilot: the results so far

Masdar Clean Energy set a target for its pilot projects of one cubic metre of water for every 3.6 kilowatt hours of energy used. This is a particularly challenging target in the Persian Gulf, where salinity is very high, the water temperature is high, it's very shallow, and there's high organic matter.

Video Q&A: Ronit Erlitzki, AdEdge Water Technologies

AdEdge Water Technologies' director of business development Ronit Erlitzki, presents a new technology that uses flow reversal to minimise membrane fouling.

Video Q&A: Doug Eisberg, Avista Technologies

Avista Technologies' director of business development Doug Eisberg, explains how new applications of membranes in water reuse systems are bringing fresh challenges.

AMTA's awards recognise individuals for a variety of contributions to the field of membrane technology

AMTA unveils annual gongs for membrane experts

The American Membrane Technology Association (AMTA) has conferred its annual roster of awards for membrane specialists, include its Lifetime Service Award, Hall of Fame Awards, and Operator of the Year Award.

The new manual, Harmful Algal Blooms and Desalination: A Guide to Impacts, Monitoring, and Management, synthesizes knowledge from multiple case studies

First guide to harmful algal blooms launches at IDA World Congress 2017

UNESCO Intergovernmental Oceanographic Commission (IOC) and Middle East Desalination Research Centre (MEDRC) introduced the world's first guide to harmful algal blooms (HABs) on Tuesday 17 October 2017, at IDA World Congress.

'I am halfway between the lab and the boardroom on this,' Tim Harper, CEO, G2O Water Technologies

Q&A: Tim Harper, G20 Water Technologies

Former European Space Agency scientist Tim Harper, now chief executive of G2O Water Technologies, talks graphene-coated membranes

Hydranautics' new CPA7-LD membrane is designed to produce low permeate TDS make-up water for power stations, and the semi-conductor and pharmaceutical industries.

Hydranautics introduces two new spiral wound RO membranes

Hydranautics has brought out two new spiral wound reverse osmosis membranes for demanding industrial and municipal applications.

Padre Dam plant in drought-hit California has achieved industry-leading recovery rates

Desalitech recognised for topping water recovery rate records

Desalitech has won the IDA Industry Technology and Innovation Leader in Water Reuse and Conservation Award of Distinction, thanks in part to its work at Padre Dam Advanced Water Reclamation plant in Southern California.

PolyCera could

Water Planet introduces "revolutionary" new polymeric membranes

Water Planet has launched its new membrane filtration product, PolyCera, which it claims outpaces the current range of polymeric membranes, and costs less.

Evoqua lands five deals totalling US$ 20 million for its clarification system

In deals totalling more than US$ 20 million, five US municipalities have ordered Evoqua Water Technologies' BioMag ballasted biological treatment system for their wastewater treatment plants.

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.

Desalitech wins zero liquid deal in China

Desalitech has won a deal to supply a high-efficiency, ultrapure water treatment system for Novelis' aluminium production facility in Changzhou, China to help comply with a regulatory requirement for zero-liquid discharge (ZLD) in applicable process wastewaters. 

Dow project seeks to promote reuse

Dow Water & Process Solutions, is participating in one of ten European Commission-funded projects that aim to stimulate innovation and improve cohesion in Europe's water reuse sector.

H₂O Innovation bags Clearlogx

Membrane filtration company, H₂O Innovation, as acquired all of the assets of control technology specialist, Clearlogx, that relate to its control technology and its specialty coagulants.

IDA 2015 World Congress draws 1,700 delegates

More than 1,700 delegates from 63 countries attended the International Desalination Association's (IDA's) 2015 World Congress held in San Diego recently according to the association's key metrics published this week. Awards for papers and presentations topped US$ 30,000.

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.

Registration open for AMTA/AWWA membrane conference

Registration has been opened and new sessions added to the programme for the 2013 Membrane Technology Conference & Exposition in San Antonio, Texas, on 25-28 February 2013.

A grand conference is AMTA/ AWWA's fourth

One thousand attendees turned up at Orlando, Florida for the fourth Membrane Technology Conference (MTC) hosted jointly by the American Water Works Association (AWWA) and American Membrane Technology Association (AMTA) last week.

AMTA NEWS Novel sub-nanofiltration ceramic membrane production uses DNA

A novel method for creating ceramic reverse osmosis membranes with sub-nanometre pores by using the genetic material, DNA, as a template former, overcomes the poor reproducibility encountered in conventional methods according to the developer of the technology, Cerahelix.

Microbubble membrane cleaning stems fouling

In spring 2014 we published an article on how Genesys developed its microbubble-based membrane cleaning system. In this follow up Genesys presents results from a case study of the technology in a wastewater reverse osmosis plant. This article first appeared in the February 2015 issue of Desalination & Water Reuse magazine.

Kuwait plant to get GE membranes

Kuwait's Sulaibiya wastewater treatment and reclamation plant will be upgraded with GE's water reuse technology.

Global demand for desalination to rise each year until at least 2020

Desalination capacity is expected to grow by 8 per cent annually to 140 million m3/d by 2020, new research shows.

Oasys opens new office in Dubai

Forward osmosis specialist, Oasys Water, recently opened a new office in Dubai to bring on "industrial water treatment innovations in the Middle East."

Researchers share industry prize for fouling research

Doctoral students, Ariel Atkinson of the University of North Carolina at Chapel Hill and Erin Partlan of Clemson University, have received the 2014 Fellowship for Membrane Technology award from the American Membrane Technology Association (AMTA) and the National Water Research Institute (NWRI) for research in membrane fouling.

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.

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.

Forward osmosis: mainstream or margins?

The authors have taken a look at findings in a recent BlueTech report tracking the prospects for forward osmosis as a player in conventional desalination and water reuse applications. This article first appeared in the February 2016 issue of Desalination & Water Reuse magazine.

Tubular membranes replaced at South Africa coal plant

More than 2,500 tubular reverse-osmosis (TRO) membrane modules have been replaced at a South African coal-to-liquids refinery by Veolia‑owned Membratek in a subcontract.

Desalitech and Veolia tie up Mexican MoU

Desalitech Inc has signed a memorandum of understanding (MoU) with Veolia Water Solutions & Technologies to bring advanced cost‑effective high‑recovery water solutions to Mexico and additional countries worldwide.

Registration open for WateReuse research conference

Registration is open for the 18th Annual Water Reuse & Desalination Research Conference to be held by the WateReuse Research Foundation in Las Vegas on 19-20 May 2014.

Water Planet to use 3M polymer in membrane manufacture

Water Planet Engineering (WPE), a spinoff company from the University of California, Los Angeles (UCLA), has entered into a joint development agreement with global company 3M to explore commercial production of a new polymer material with widespread industrial application.

EDS launches 2014 desalination courses with Rome event

The European Desalination Society (EDS) kicks off a list of six events in its series of Master Courses with a three-day course in Rome, Italy, on Membrane Technology, Process & System Design on 3‑5 March 2014.


Suggested keywords