Algae, California, Virginia, Reverse Osmosis, 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.
Pressure-exchanger court case goes to Hauge
The latest round of the "pressure-exchanger wars" between inventor Leif J Hauge, his company Isobarix Inc and energy-recovery equipment manufacturer Energy Recovery Inc (ERI) has gone in favour of Hauge.
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.
Nanobubble specialist Moleaer raises capital, seeks people
Moleaer, the California, US-based water technology firm that developed the XTB Nanobubble Generator has raised $6 million to support overseas expansion.
Suez Environnement lands US$ 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.
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.
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.
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.
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.
AMTA and SEDA to hold Chesapeake membrane workshop
The American Membrane Technology Association (AMTA), which promotes membrane processes for desalination and water / wastewater treatment, is to hold a joint technology transfer workshop with the Southeast Desalting Association in Chesapeake, Virginia, in May 2013.
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.
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).
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.
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.
Biwater picks up two desalination deals in California
Water project company, Biwater, is soon to begin work on contracts for the design, supply and supervision of installation of reverse osmosis (RO) equipment of two desalination expansion projects in California.
Evoqua bags municipal deals worth US$ 20 million
Water treatment firm, Evoqua, has won contracts worth more than US$ 20 million supplying its Memcor microfiltration and ultrafiltration product line to six US and Canadian municipalities. The deals were for filtration, water reuse, drinking water treatment, and reverse-osmosis pre-treatment applications.
Sweetwater starts US$ 42 million desalination upgrade
Sweetwater Authority has begun its US$ 42 million expansion of the Richard Reynolds Groundwater Desalination facility in Chula Vista.
Santa Barbara starts desalination rebuild
Work has started on the US$ 47 million replacement of a 30-year old, virtually unused desalination plant in Santa Barbara, California to make way for a new plant after the city gave the go ahead for a return to desalination as a means to address drought.
California city ponders desalination revival
California's city of Morro Bay is poised to apply to the state Coastal Commission to operate continually its currently idle reverse osmosis desalination plant. The city let its operating permit expire in 2000, and the plant - built in 1992 - has not operated since then except for occasional emergency use.
Santa Barbara ponders US$ 2 million subsurface intake test
Californian city, Santa Barbara, may put up to US$ 2 million into a study of a desalination facility seawater intake structure after environmental groups said the existing plant's open water intake pipe could be harmful to marine life.
Contractor strength drives investment grade rating for Carlsbad bonds
Credit rating agency, Fitch, has assigned an investment grade 'BBB-' rating to bonds issued for the under-construction Carlsbad desalination plant and associated networks in California.
Advisor ups Santa Barbara desalination restart cost by 25%
The city council of Santa Barbara in California may need to add to its planned water rates increase to cover the cost of a restart to the city's mothballed desalination plant according to acting water advisor, Josh Haggmark. He issued his warning after upping his US$ 32 million September estimate of the cost of re-booting the plant by about 25%.
Commission approves California American Water test slant well
The California Coastal Commission has approved the application by water utility, California American Water, (Cal Am) to construct a test slant well for its proposed 48 Ml/d seawater reverse osmosis desalination project.
Cal Am strikes deal on test well
Utility, California American Water (Cal Am), has struck a deal with cement maker, Cemex, to allow the water firm to drill slant test wells, and possibly production wells, on Cemex' north Marina sand mining plant site.
West Basin declares record year in recycled water output
West Basin Municipal Water District in California has declared fiscal year 2013-14 a record 12 months in recycled water production at its Edward C Little Water Recycling Facility. The plant produced 60,000 Ml of recycled water in the period.
California slant test gets US$ 1 million grant
Water utility, California American Water, has received a US$1 million grant from the state's Department of Water Resources to help fund the company's $4 million planned slant well test.
Land-purchase brings Consolidated's Mexican SWRO nearer
The planned Rosarito seawater desalination project in Mexico close to the US border took a step nearer on 22 May 2014 when Consolidated Water Co Ltd announced that it had completed the land purchase for the project.
Carollo to evaluate restarting Santa Barbara desalination
The City of Santa Barbara, California, has selected Carollo Engineers to complete a three-phase evaluation for the reactivation of the city's Charles Meyer seawater desalination plant.
LG sees NanoH2O takeover as "new growth engine"
LG Chem, part of Korea's LG electronics group, is proposing a takeover of desalination membrane maker NanoH2O for US$ 200 million, according to a filing made to the Korea Exchange on 14 March 2014.
H2O Innovation wins Monterey SWRO subcontract
H2O Innovation Inc has been awarded the contract to design, supply and commission the seawater reverse osmosis (SWRO) desalination system for the Monterey Peninsula Water Supply Project in California, USA.
Cal Am applies for US$ 3 million desalination intake grant
California American Water (Cal Am) is seeking a US$ 1 million grant from the California Department of Water Resources to help fund the installation of a US$ 3 million slant test well, which is needed for its proposed Monterey desalination project.
Carlsbad SWRO first year milestones revealed
Following the early January celebration of the first year of construction of the Carlsbad seawater reverse osmosis (RO) desalination plant in California, developer Poseidon Resources provided D&WR with a breakdown of the work so far.
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.
IDE buys Flowserve pumps for Carlsbad desalination
IDE Technologies has purchased three large vertical seawater intake pumps from Flowserve Corporation for the Carlsbad seawater reverse osmosis (SWRO) desalination plant in Carlsbad, California.
LACSD signs up Desalitech for chloride‑removal test
Desalination system developer Desalitech is to support a pilot project with the Los Angeles County Sanitation Districts (LACSD) to upgrade two Santa Clarita Valley wastewater treatment plants in order to meet state‑mandated chloride limits, the company announced on 2 October 2013.
Biwater lands Chino desalination concentrate reduction
A concentrate-reduction facility is to be built for the Chino Basin Desalter Authority in California by Biwater AEWT, involving installation of three new reverse-osmosis (RO) desalination units.
ERI to provide pressure-exchangers for Carlsbad SWRO
IDE Technologies has selected pressure-exchangers from Energy Recovery Inc (ERI) for the 189,000 m³/d Carlsbad seawater desalination plant in California, USA.
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.
Santa Cruz desalination EIR comment deadline in July
The draft environmental impact report (EIR) for the 2.5 MGD (9,500 m³/d) seawater desalination plant for the greater Santa Cruz area in California, USA, which was released on 13 May 2013, will be available for public comment until 15 July 2013.
Huntington Beach councillors oppose desalination plan
The City of Huntington Beach in California voted on 6 May 2013 to allow council members to individually send letters to the California Coastal Commission (CCC) opposing the coastal development permit (CDP) for a seawater desalination plant which the previous council had approved in 2010.
Puretec acquires Layne Christensen's DI assets
California-based Puretec Industrial Water announced at the end of March 2013 that it had acquired the assets of Layne Christensen's Arizona-based deionization water purification and water system maintenance services as from 1 April 2013.
Toray expands California membrane manufacturing site
Desalination membrane manufacturer Toray Membrane USA Inc has bought a third building located adjacent to its existing two-building manufacturing facility in Poway, California, USA.
More moves on Monterey desalination proposals
The final report on the choice of seawater desalination plants proposed for the Monterey Peninsula in California was presented to the Monterey Peninsula Regional Water Authority on 18 December 2012 by its consultant, Separation Processes Inc.
Carlsbad desalination construction gets going at last
Poseidon Resources announced on 27 December 2012 that it had secured all necessary funding for the Carlsbad Desalination Project and that its engineering, procurement and construction contractor, Kiewit Shea Desalination, had been given the green light to start construction.
Agreement over failed Monterey desalination plan
Agreement was reached on 4 December 2012 on legal and monetary issues resulting from the failed Monterey Regional Desalination Project, which was abandoned earlier this year.
Australian SWRO firm signs MoU for Saudi pilot
Australian desalination start-up Water Resources Group (WRG) announced on 4 December 2012 that its subsidiary Water Resources International (WRI) had signed a memorandum of understanding with Knowledge Industry Company (KIC) of Saudi Arabia.
Carlsbad desalination water price will be US$ 1.65‑1.86/m³
The Water Purchase Agreement for the proposed Carlsbad seawater reverse-osmosis desalination plant in California was released on 27 September 2012 by the San Diego County Water Authority (SDCWA).
Monterey consultant can't choose between projects
The Monterey Peninsula Regional Water Board (MPRWA) in California still has to decide between three competing seawater desalination projects for the area after its Technical Advisory Committee accepted on 17 September 2012 a report by consultants Separation Processes Inc of Carlsbad.
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.
November ballot for Santa Cruz desalination
Barely two weeks after the City of Santa Cruz in California had accepted the preliminary design report by CDM Smith for its proposed 2.5 MGD (9,500 m³/d) seawater desalination plant, the city clerk's office confirmed on 3 July 2012 that proponents of a charter amendment for a vote on the desalination project had collected enough signatures to place it on the November 2012 ballot.
Egyptian SWRO plant to use ERI pressure exchangers
Egypt's largest desalination plant being built at Marsa Matrouh is to be supplied with Pressure Exchanger (PX) energy-recovery devices by Energy Recovery Inc of California.
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).
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.
Huntington Beach desalination project get NPDES permit
The Santa Ana Regional Water Quality Control Board (SARWQCB) in California, USA, on 10 February 2012 unanimously approved an amended National Pollutant Discharge Elimination System Permit for the Huntington Beach Seawater Desalination Project.
Carlsbad water purchase agreement one step closer
Carlsbad City Council in California voted on 13 September 2011 to approve an agreement with San Diego County Water Authority (SDCWA) concerning water from the Carlsbad Desalination Project.
New CEO appointed by Poseidon Resources
Carlos A Riva, who has led a number of leading infrastructure companies, has joined Poseidon Resources as chief executive officer.
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.
Marin MWD wins but desalination EIR challenge looms
Marin Municipal Water District (MMWD) won a ruling in March 2011 by a Marin superior court judge which keeps its option of a seawater desalination plant on track.
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.
US$ 8 million contracts boost for H2O Innovation
Quebec-based H2O Innovation Inc announced new contracts for desalination and water treatment systems totaling Can$ 7.8 million (US$ 8 million) on 24 March 2011.
Orange County loses widely respected lab director
Orange County Water District (OCWD) in California announced on 21 March 2011 that Steve Fitzsimmons, director of its Advance Water Quality Assurance Laboratory, who had been a key figure in water quality testing for Water Factory 21 and gaining credibility for the Groundwater Replenishment System, died on 3 March 2011.
Finance agreed for Camarillo regional desalter studies
Two water districts and two - possibly three - cities in southern California have agree to finance studies for a regional brackish-water desalination plant to be located near Camarillo.
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.
West Basin district dedicates desalination demo facility
California's West Basin Municipal Water District is nearing completion of its new desalination demonstration facility, following formal dedication of the plant on 12 November 2010.
Appeals launched against Huntington Beach desalination plant
A public hearing by the California Coastal Commission is the likely result of appeals launched against the Huntington Beach Desalination plant, approved by the State Lands Commission on 29 October 2010.
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.
Carlsbad water-purchase deal near to conclusion
The water-purchase contract between San Diego County Water Authority and Poseidon Resources Inc relating to the Carlsbad desalination plant in southern California could be tied up by the end of July.
Marin voters could decide desalination future
Marin Municipal Water District in California will have to seek the permission of consumers to proceed any further with its investigations into the possibility of desalination, if a ballot later this year is successful.
Desalination affected by California powerplant ruling
The powerplant with which California's new 189,000 m³/d Carlsbad seawater reverse-osmosis (SWRO) plant is co-located has been ordered to cease once-through cooling by 2017. The Huntington beach powerplant, site of another proposed desalination plant, has been given until 2020.
West Basin demonstrating desalination intake and outfall technologies
One of the first seawater desalination demonstration facilities to employ ocean-protection technology at the source of intake and discharge has begun construction in Southern California, USA.
Santa Cruz seawater desalination edges forward
The Santa Cruz City Council in California, USA, unanimously agreed in the middle of March to an operational framework for sharing a desalination plant with the neighboring Soquel Creek Water District if plans are eventually approved.
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.
Orange County issues RFP for desalination pilot-plant operation
The Municipal Water District of Orange County (MWDOC) in California, USA, issued a request for proposals on 23 October 2009 for professional engineering services for the South Orange Coastal Ocean Desalination Project - Phase 3. Deadline is 19 November 2009.
New US Navy RO units 'will use 65% less energy'
The United States Office of Naval Research (ONR) is planning to build prototype desalination units that will use 65% less energy and be 40% smaller by weight than current Navy reverse-osmosis (RO) units, an ONR release on 23 September 2009 predicted.
West Basin desalination demo could begin next year
Construction could begin in 2010 on the Ocean-Water Desalination Demonstration Project at Redondo Beach near Los Angeles, California, the West Basin Municipal Water District announced on 30 July 2009.
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.
Biwater finishes first half of Changi performance tests
The first half of the Sembcorp Changi NEWater Plant (SCNP) in Singapore completed performance tests on 14 July, contractor Biwater AEWT told D&WR. No date has been set for plant commissioning, says Biwater.
Barclays to assist with Carlsbad desalination financing
Poseidon Resources announced on 17 June 2009 that it has selected Barclays Capital as its financial advisor in connection with the financing of its 50 MGD (189,000 m³/d) reverse-osmosis seawater desalination plant in Carlsbad, California.
Desalination plant's nitrate removal has hidden benefits
A water district in California has found a novel way to remove multiple contaminants from groundwater currently feeding a desalination plant without creating waste that requires costly treatment and disposal.
PWT acquired by H2O Innovation
Canadian water-treatment systems manufacturer H2O Innovation Inc announced on 28 May 2009 the acquisition of substantially all of the assets of Professional Water Technologies (PWT) in an arms' length transaction involving H2O subsidiary Membrane Systems Inc.
Chino Desalter expansion to start in late summer
The Western Municipal Water District in California, USA, accepted US$ 4.5 million of federal government funds on 18 May 2009 towards the Chino II Desalter expansion project, which expected to start in late summer.
California DWR publishes mobile desalination guide
The California Department of Water Resources published on 7 May 2009 a 9-page document on its website titled Logistics for Deploying Mobile Desalination Units.
Cambria desalination will bring environmental benefit
The US Army Corps of Engineers announced on 28 April 2009 that it will receive US$ 2.5 million in funding through the new American Recovery & Reinvestment Act to develop the Cambria desalination project north-west of San Luis Obispo in California.
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.
Santa Cruz pilot desalination results in 3-4 months
The Water Department of the City of Santa Cruz (SCWD), California, USA, confirmed on 23 March 2009 that its year-long seawater reverse-osmosis (SWRO) pilot plant test will be ended in mid-April with a report due in June or July 2009.
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.
ZLD power-station job for Aquatech
Aquatech International Corporation has announced an order from Gemma Power Systems for the Colusa Power Station in Maxwell, California, USA.
Carlsbad gets approval from Coastal Commission
The California Coastal Commission (CCC) finally approved the Carlsbad seawater desalination plant near San Diego at the beginning of August.
SEDA to hold events in Chesapeake and Pompano Beach
The Southeast Desalting Association has announced a Membrane Cleaning Workshop to be held in Chesapeake, Virginia, in late October 2013.
SEDA offers first module of membrane operator certificate
The Southeast Desalting Association (SEDA) is offering Module I of the Membrane Operators Certification (MOC) Short School in April 2013 in Palm Coast, Florida.
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.
Biwater bags California reuse contract
UK water technology group Biwater has been awarded a contract to design, supply and commission all process, mechanical, electrical and control components for a planned wastewater reuse demonstration project in California, USA.
Escondido moves towards indirect potable reuse
The City of Escondido in southern California, USA, could be about to follow neighbour San Diego in setting up an indirect potable water-reuse (IPR) scheme as part of a wastewater facility upgrade costing about US$ 200 million.
Carlsbad could start earlier than scheduled
The US$1 billion Carlsbad seawater desalination plant under construction in California is 65% complete and could be in operation earlier than its planned 2016 start, according to its developer Poseidon Water.
AMTA lists tech transfer and AWWA events
The American Membrane Technology Association (AMTA) has fixed dates for technology-transfer workshops this year including a joint event with the South West Membrane Operators Association (SWMOA),
EPA funding for Arlington Desalter's biological denitrification
California's Western Municipal Water District (WMWD) confirmed on 10 February 2011 that it had secured a US$ 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.