Disinfection, Forward Osmosis, Algae, Algae
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.
Ras Al Khaimah seawater desalination has algae shield
Northernmost of the United Arab Emirates (UAE), Ras Al Khaimah, has opened a 68 Ml/d seawater reverse osmosis (SWRO) project in Ghallilah on the emirate's west coast that is equipped to "overcome the red tide phenomena" - the seasonal proliferation of algae that blights the emirates' coastline.
Saudi boost for LiqTech ceramic membranes
The Saudi Arabian Ministery of Water & Electricity has announced that ceramic flat-sheet membranes are the technology of choice for groundwater applications, according to Danish company LiqTech International.
Algae biomass membrane order for Denmark's LiqTech
Denmark's LiqTech International Inc has received a purchase order of around US$ 300,000 for a prototype filtration system to be used in an algae biomass project.
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).
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.
Electrochemical desalination MoU signed in Singapore
A memorandum of understanding (MoU) between Singapore's national water agency, PUB, and Evoqua Water Technologies to further develop electrochemical desalination technology was one of five MoUs signed during Singapore International Water Week, which ended on 5 June 2014.
Direct membrane filtration simplifies reuse process
Recent trials have proven that direct membrane filtration of high solids (algae) and disinfection provides a simpler treatment process with substantial cost reduction. In Pillbara, Australia, two plants are being constructed to treat wastewater for recycling aiming for a 4-log removal of bacteria and viruses by filtering alone. Ultraviolet treatment provides the final requirement to reach the required 6-log removal rate. This article gives an overview of the application, and details on the technology and design used. It first appeared in the August/September 2013 issue of Desalination & Water Reuse magazine.
WRA/IUVA webcast looks at disinfection in reuse
The WateReuse Association (WRA) and the International Ultraviolet Association (IUVA) have announced a webcast discussing the various applications of UV technologies for water reuse purposes, including disinfection (inactivation of pathogens) and destruction of chemical constituents.
Randy Truby joins board of Neo-Tech Aqua Solutions
Ultraviolet (UV) disinfection specialist NeoTech Aqua Solutions Inc announced on 10 March 2014 the addition of Randy Truby, a past president of the International Desalination Association, to its board of directors.
Treatment chemicals annual demand rise to top 3%
Demand for water treatment chemicals in the US will rise 3.2% a year to US$ 7.3 billion by 2019, according to a report by market researcher, ReportLinker.
Abunayyan resigns as chair of ACWA Power Barka
Mohammad Abdullah Abunayyan has resigned as chairman and board director of ACWA Power Barka in Oman, citing personal reasons.
Nanobubble specialist Moleaer raises capital, seeks people
Moleaer, the California, US-based water technology firm that developed the XTB Nanobubble Generator has raised $6 million to support overseas expansion.
How we delivered Az Zour North phase one
"With hindsight we were very lucky to get everything through on time and that our construction partner Hyundai Heavy Industries was on time. Fortunately we escaped a lot of those little wrinkles that need sorting out during construction, and can drag on and on, and so we kept to time," says Andy Biffen, chief executive of project delivery vehicle Az Zour Shamal.
Spiral scoops innovation award for its 'disruptive' automatic self-cleaning filter
Spiral Water has picked up an Innovation Award from BlueTech Research for its automatic self-cleaning water filter, a "disruptive" new filter technology according to Spiral chief executive Ashwin Gulati.
Algae: a tide of trouble
The water services provider at the industrial port at Sohar in the Oman has learned the hard way, how to combat the seasonal algal wave that can grind vital reverse osmosis desalination and other water treatment to a halt. Despite unprecedented assaults the notorious Red Tide has been tamed. This article first appeared in the May 2015 issue of Desalination & Water Reuse magazine.
Ovivo to supply largest US MBR to Canton, Ohio
The City of Canton, Ohio, is to use Ovivo membrane bioreactor (MBR) technology to upgrade its water reclamation facility from 39 MGD (147,600 m³/d) to 88 MGD (333,000 m³/d).
Former AWWA VP joins NeoTech UV company
The former general manager of Indio Water Authority in California, Debra Kaye, has been been appointed by NeoTech Aqua Solutions Inc, provider of UV disinfection systems, as vice-president of global municipal technologies.
Suez Environnement lands US$ 200 million Middle Eastern deals duo
Suez Environnement has won a desalination contract in Abu Dhabi worth more than US$ 180 million and a separate water reuse deal in Oman taking the total value of the Middle East wins to more than US$ 200 million.
Xylem supplies wastewater denitrification systems in China
Water technology company, Xylem, has supplied denitrification systems to three wastewater treatment plants in eastern China as part of a national strategy to improve wastewater treatment by 90% over five years.
IWA looks at organic matter in treatment and reuse
The International Water Association (IWA) is holding a specialist conference with the Australian Water Association (AWA) in Perth in October 2013 on natural organic matter (NOM), which will look at its effects on water treatment and reuse, and desalination.
Parkson moves Middle East work back to USA
Parkson Corp of the USA announced on 15 June 2012 that it is consolidating the operations of its Middle East group into its international division. Parkson says this is to optimize the delivery of its water and wastewater treatment technologies to the rest of its customer base in other parts of the world.
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.
RO-based advanced treatment plant for West Virginia mines
A 5 MGD (19,000 m³/d) membrane-based wastewater treatment plant is to be built to serve a number of coal mines in West Virginia, USA, as a result of government action following pollution violations.
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.
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.
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.
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.
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).
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 '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.
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.
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."
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.
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
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.
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.
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.
City seeks to join South Bay reuse system
The City of Sunnyvale in California voted on 6 March 2012 to explore connecting its recycled water system to the South Bay Water Recycling (SBWR) system operated by the City of San Jose in partnership with the Santa Clara Valley Water District (SCVWD).
New San Francisco wastewater reuse project relocated
San Francisco's Westside Recycled Water Project, which will reuse up to 4 MGD (15,140 m³/d) of secondary effluent, will no longer be built in the city's historic Golden Gate Park.
MF/RO plant may be Santa Clarita salt solution
A microfiltration/reverse-osmosis (MF/RO) advanced wastewater treatment plant is one of several options being considered by the Santa Clarita Valley Sanitation District (SCVSD) in California, USA, to deal with excessive chloride levels in the wastewater it discharges to the Santa Clara River from its two treatment plants.
Xylem to distribute GE membrane filtration products
Xylem Inc, the ITT water technology spin-off officially launched on 1 November 2011, has signed up to be GE's distribution partner into the public utilities market for its advanced membrane filtration products.
STS appoints new European business manager
Severn Trent Services announced on 21 October 2011 that Enric Cardoner is to be the new general manager for its Water Purification group in Europe.
San Diego IPR demo open to public tours
The public can now tour the City of San Diego's Water Purification Demonstration Project, which is evaluating the feasibility of using advanced treatment technology to produce water that can be sent to San Vicente Reservoir and later distributed as potable water.
Desalination help published with WHO drinking water standards
The World Health Organization launched the 4th edition of its Guidelines for Drinking-Water Quality (ISBN: 978 92 4 154815 1) at the Singapore Water Week on 4 July 2011 - and also launched a separate guide for desalination.
Fillmore saves water and costs with innovative design and contract
When a plant wins a number of regional and national awards, it must have something the rest of the world should take note of. This is the case with the Fillmore wastewater treatment plant, which picked up another award on 9 March 2011, this time a Project Merit award in the 2010 Environmental Business Journal Business Achievement Awards. The secret is state-of-the-art technology, including an MBR plant, UV disinfection and drip irrigation, married to a form of contract that benefitted the city, the contractor and the engineer. This article first appeared in the February/March 2011 issue of Desalination & Water Reuse magazine.
Parsons selected for California water-reuse expansion
California's West Basin Water District has awarded its largest ever water-reuse contract to Pasadena-based Parsons Corporation on a design-build basis.
Go-ahead for 113,500 m³/d Orange County GWRS expansion
Orange County's world-renowned membrane-based Groundwater Replenishment System (GWRS) in California is to be expanded by another 30 MGD (113,500 m³/d) following approval by the board of the Orange County Water District (OCWD) on 30 March 2011.
District backs out of California's GRIP water-reuse project
One of the three main partners in a US$ 210 million indirect potable water-reuse scheme in California's San Gabriel Valley has walked away from the project.
EPA funding for Arlington Desalter's biological denitrification
California's Western Municipal Water District (WMWD) confirmed on 10 February 2011 that it had secured a US$ 528,000 federal grant in January for design work on a treatment system that uses naturally occurring bacteria to remove toxic contaminants, including perchlorate and nitrate, from drinking water.
High-visibility reuse demo awarded to APTwater
California-based APTwater, Inc has been awarded a contract to use its technology for a municipal water-reuse system for the City of Anaheim, California.
Norit to supply UF membranes for Singapore waterworks
Norit Asia Pacific is to supply of X-Flow XIGA ultrafiltration (UF) membranes to the Lower Seletar Waterworks project in Singapore to be constructed by Sembawang Engineers & Constructors.
Australia's first groundwater replenishment trial launched
Western Australia's water minister, Graham Jacobs, launched Australia's first Groundwater Replenishment Trial on 30 November 2010, which research indicates may be cheaper than desalination.
Bundamba wastewater reuse plant passes second quality test
The second Water Quality Report for the Bundamba Advanced Water Treatment Plant in Queensland, Australia, has confirmed the excellent quality of the purified water it produces and proved that the water is safe to add to the drinking supply, says government agency WaterSecure
Texas wastewater-reuse plant could be first of three
The Colorado River Municipal Water District (CRMWD) in Texas, USA, is anticipating the construction phase early in 2011 of its first regional water reclamation plant, which will be membrane-based and located in Big Spring.
San Francisco plans wastewater reuse plant in city park
San Francisco's Public Utilities (SFPUC) unveiled plans on 7 September 2010 for its proposed Westside Recycled Water Project, part of its Water System Improvement Program.
Singapore company wins UF reuse plant in UAE
Boustead Singapore's subsidiary Salcon has won an AED 55 million (US$ 5.6 million) contract to design, engineer and construct a new ultrafiltration wastewater reuse plant.
India's BARC develops small solar RO and UF units
Domestic and community-level reverse-osmosis (RO) desalination units have been developed for producing safe drinking water by Saly T Panicker at the Desalination Division of India's Bhabha Atomic Research Centre.
MBR at heart of innovative wastewater reuse project
An innovative wastewater treatment/water reuse project was opened for the City of Clovis, California, USA, on 19 March 2010, featuring membrane bioreactor (MBR) technology, ultraviolet (UV) disinfection and a patented sludge-reduction system
Siemens wins OC membrane system contract
A hollow-fiber membrane pretreatment system is to be supplied to Orange County's Groundwater Replenishment (GWR) system expansion under a US$ 14 million contract won by Siemens in California, USA.
Santa Clara votes for advanced wastewater reuse plant
The directors of the Santa Clara Valley Water District in California, USA, approved two agreements with the City of San Jose on 23 February 2010 to build a new advanced water treatment facility involving microfiltration, reverse osmosis and ultraviolet disinfection.
Australia's CSIRO demonstrations indirect stormwater reuse
Scientists at Australia's Commonwealth Scientific and Industrial Research Organisation (CSIRO) have bottled recycled stormwater as pure drinking water titled "Recharge", CSIRO announced on 17 September 2009.
Changi wastewater reuse plant goes commercial
Stage 1 of the Sembcorp Changi NEWater Plant (SCNP) in Singapore has started commercial operations, according to a 26 August 2009 announcement from Black & Veatch, who provided full design engineering for the wastewater reuse plant along with construction support and commissioning services.
Poseidon signs two VPs and construction director
Three experienced US water industry personnel have joined Poseidon Resources, following the departure of Nikolay Voutchkov earlier this year, the company announced on 20 July 2009.
San Diego wastewater reuse demonstration to continue
San Diego City Council voted on 7 July 2009 to continue a $12 million wastewater indirect potable reuse demonstration project which would take purified sewage water from the North City Water Reclamation Plant and pump it into the San Vincente Reservoir to augment drinking water supplies.
Desalination and reuse in California/New Mexico get funding
US Secretary of the Interior Ken Salazar announced on 1 July 2009 27 water reclamation and reuse projects in California and New Mexico identified by the Bureau of Reclamation to share in a total of US$ 134.3 million under the American Recovery & Reinvestment Act of 2009.
US districts fight saline intrusion with reused water
Two California water districts announced an agreement on 18 April 2009 to transfer and use recycled wastewater as a barrier against saline intrusion into groundwater, replacing 5.5 billion gallons (20.8 million m³) of drinking water per year previously used for this purpose.
Phase 1 of Palm desalination plants finished in Dubai
The first phase of a $ 120 million contract to build two identical seawater desalination plants on the Palm Jumeirah island development in Dubai, UAE, has been completed by ACWA Emirates LLC.
Ozone improves ceramic membrane use for wastewater reclamation
Ceramic membranes have been used in the industrial production of beer, wine and cheese. One of the reasons for this use is the narrow pore size distribution, where careful separation of different size compounds can be achieved. Outside of Japan, the use of ceramic membranes has been almost non-existent for municipal drinking-water systems. The slow adoption of this technology is largely the result of a perception by many that the costs are significantly higher. While the capital costs may be higher, the whole life cycle costs may not be, due to extended membrane life and more reliable operation. Most water reuse today takes the form of indirect potable reuse. These schemes frequently consist of several steps including physical and chemical disinfection and advanced oxidation. They have the disadvantage of high cost and often poor membrane fluxes due to the nature of the wastewater being treated. The study outlined in this article is preliminary, but shows that ozone in conjunction with ceramic membranes for water-reuse applications has many advantages when disinfection and advanced oxidation is required. As opposed to polymeric membrane systems that cannot tolerate ozone, ceramic membranes in conjunction with ozone can achieve multiple key objectives in one step. This article appeared in the May/June issue of D&WR magazine.
Keppel unveils designs for Marina East Desalination Plant
Keppel has shared design details of its Marina East Desalination Plant project in Singapore, as it broke ground on 29 June 2017.
The Long Read: Do we have the technology for potable water reuse?
Water reuse for drinking purposes is racing up the agenda in the US and elsewhere. Work to draw up new rules for potable reuse is advancing in states including California and Arizona, as well as in Canada and the European Union. Technologies are being piloted, and plants permitted.
"We become part of our customers' business." Anurag Bajpayee
Gradiant's philosophy on technology is to take fundamental concepts and develop them into water technologies that speak directly to customers' experiences in the field.
'Challenges are shared across the border', Mitch Thompson, Otay
Water from NSC Agua's desalination plant in Rosarito, Baja California, is a critical component of Otay's diversification efforts.
'Challenges are shared across the border', Mitch Thompson, Otay
Water from NSC Agua's desalination plant in Rosarito, Baja California, is a critical component of Otay's diversification efforts.
Gradiant spins out subsidiary Gradiant Energy Services
Boston based industrial water solutions specialist Gradiant has formed a new subsidiary, oilfield services company Gradiant Energy Services (GES).
Xylem ultraviolet disinfection systems win California approval
Xylem has won approval for two ultraviolet disinfection systems from the drinking water division of California's water resources control board.
Evoqua and Neptune Benson together snap up Delta Ultraviolet
Evoqua Water Technologies together with Neptune Benson which it acquired in June, has bought ultraviolet C technology specialist Delta Ultraviolet.
Boost for San Angelo water reuse plan
Plans for a water reuse project in San Angelo, Texas, received a boost this week, with local council staff given the green light to take the next step in seeking funding for the project.
Xylem treatment boosts Chesapeake water quality project
Water technology firm, Xylem, has won a contract to provide advanced treatment to an existing wastewater treatment plant in the city of Frederick, Maryland and play a key role in an initiative focused on improving water quality in the Chesapeake Bay.
Home desalination market to top US$ 24 billion by 2020
The market for domestic countertop water treatment devices and other point-of-use treatment systems is estimated to reach US$ 24.5 billion by 2020. And the compound annual growth rate for the market is forecast at 9.86%, from 2015 to 2020 according to a report by market analyst, MarketsandMarkets.
Global membrane market growth nears 11%
The global membrane separation market is heading to top US$ 39 billion in 2019, at a compound annual growth rate (CAGR) of 10.8% over the period according to a recent report published by market analyst, Persistence Market Research.
Q&A: De Nora group CEO Paolo Dellacha on the acquisition of MIOX
Electrochemical tech company De Nora has acquired water purification firm MIOX. De Nora group chief executive Paolo Dellacha explains the thinking behind the deal and what the future holds