Reverse Osmosis, Dissolved Air Flotation


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Xylem provides DAF pretreatment for Fujairah 1

Xylem Inc has won a contract to provide a dissolved air flotation (DAF) pretreatment system for the Fujairah 1 Independent Water & Power Plant (IWPP) in the UAE to help ensure an uninterrupted potable water supply from the desalination plant to Abu Dhabi emirate and the east coast.

Veolia to build Saudi Arabia's largest UF/RO plant

The largest ultrafiltration (UF) and reverse osmosis (RO) desalination plant in Saudi Arabia is to be built for Marafiq, the country's leading water and electricity services operator, by Veolia Water.

Doosan acquires UK desalination pretreatment technology

Korean company Doosan Heavy Industries & Construction announced on 13 November 2012 that it had completed its acquisition of key assets of the water/wastewater treatment engineering company Enpure, based in the UK.

Aquatech awarded SWRO plant in Ras Al Kaimah

Aquatech is to build a 15 MIGD (68,000 m³/d) seawater reverse osmosis (SWRO) desalination facility at Ghalilah for the emirate of Ras Al Khaimah, UAE.

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.

Ras Az Zawr to have DAF/DMF pretreatment from Enpure

Pretreatment for the reverse osmosis (RO) section of the world's largest seawater desalination plant at Ras Az Zawr (or Ras Azzour) in Saudi Arabia is to be by dissolved air flotation (DAF) and dual-media filtration (DMF).

Xylem wins major contract at Hong Kong's Tai Po water treatment works

Water technology firm, Xylem has won a contact to provide clarification and filtration systems for an expansion of the Tai Po water treatment works in Hong Kong that will double its capacity to 800 Ml/d.

Ras Al Khair bags best desalination plant prize

The Ras Al Khair project in Saudi Arabia has won the "Desalination Plant of the Year" award at the 2015 Global Water Awards.



MottMac named as engineer for Ghubrah IWP

Mott MacDonald of the UK has been named owner's engineer for the US$ 350 million Ghubrah Independent Water Project (IWP) in Muscat, Oman.

Acciona to build Sembcorp's Fujairah 1 expansion

Singapore's Sembcorp Industries has signed a 20‑year water purchase agreement with the Abu Dhabi Water & Electricity Company (ADWEC) which will enable it to expand its Fujairah 1 Independent Water & Power Plant (IWPP) by 30 MIGD (136,000 m³/d).

Mine wants state desalination plant despite OK for own project

Namibian mining company, Rössing Uranium, has restated its preference for procuring water from national water utility, Namwater, despite having completed a feasibility study of its planned desalination plant north of Swakopmund.

Pretreatment adaptation for Namibian SWRO plant

A 400 m³/d seawater reverse-osmosis desalination plant in Walvis Bay, Namibia, is to be upgraded under a contract announced at the end of September by Aqua Services & Engineering (ASE).

Doosan lands wastewater package at Iraqi oil refinery

Doosan Hydro Technology has won an order for a zero liquid discharge (ZLD) wastewater treatment package at the US$ 6 billion, 140,000 barrels-a-day Karbala oil refinery under construction at South Karbala, 100km from the Iraqi capital, Baghdad.

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.

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.

Cadagua lands RO desalination plant in UAE

The UAE's Federal Electricity and Water Authority (FEWA), responsible for supplying water and electricity in the northern emirates, has given Spanish contractor Cadagua a letter of intent for the award of a reverse-osmosis desalination plant in Al Zawrah, Ajman.

Chennai to get third desalination plant

India's Tamil Nadu state government has pushed ahead plans to build a third desalination plant at the city of Chennai with investment from German government funding agency, Kreditanstalt fur Wiederaufbau (KfW).

The XTB Nanobubble Generator is a patented technology that can reduce energy consumption in water treatment

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.

Reverse osmosis specialist Hydro Tech was acquired by SafBon of Singapore in May 2017

Doosan Hydro becomes SafBon Water Technology following acquisition

Doosan Hydro Technology has changed its named to SafBon Water Technology following its acquisition by SafBon Water Service of Shanghai, in May 2017.

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.

The new desalination plant will be largely below ground, with parkland on the roof at ground level

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 new power and water plant will be in Manama, Bahrain's largest and capital city

Bahrain names Acwa Power as preferred bidder on Al Dur 2

Bahrain's Electricity and Water Authority has named a consortium led by Acwa Power as preferred bidder for Al Dur 2 independent water and power project, reports TXF.

Aquatech installs Emirates desalination plant

Water and wastewater technology company, Aquatech, has installed a 60 Ml/d seawater reverse osmosis-based desalination plant at Ghalilah, in Ras Al Khaimah, the northernmost of the United Arab Emirates (UAE).

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.

The project site is U-shaped, and is surrounded by lots filled by industrial operators and their associated infrastructure

Jebel Ali project is a new direction for DEWA and Besix

The $237 million contract awarded by Dubai Electricity and Water Authority (DEWA) for a seawater reverse osmosis (SWRO) desalination plant represents a big step for the client, and for Besix Concessions & Assets, which won the work in partnership with Acciona Agua.

Sulzer's acquisition of JWC Environmental assumes an enterprise value of $215 million

Sulzer to acquire JWC Environmental

Sulzer is to acquire JWC Environmental, a leading supplier of municipal and industrial wastewater equipment.

Singapore cuts the ribbon on Tuas Desalination Plant

Tuas Desalination Plant officially opens ahead of SIWW 2018

Singapore has officially cut the ribbon on Tuas Desalination Plant ahead of Singapore International Water Week 2018.

Innovative Flow Analysis Method for High Loading Rate DAF

Dissolved air flotation (DAF) is a well established method for removing suspended solids from wastewater that is gaining ground in the pretreatment of seawater for desalination. The authors describe a method for analyzing the flow of water in DAF to inform better design of DAF tanks. This article first appeared in the August 2014 issue of Desalination & Water Reuse magazine.

Oasys furthers advance in China

US-based forward osmosis specialist, Oasys Water, has unveiled its latest advance in its bid to expand in China with its partner in the region, Beijing Woteer.

Osmoflo wins Australian port desalination deal

Desalination specialist, Osmoflo, has won a contract to build a desalination facility and supply water to Fortescue Metals Group at Port Hedland in Australia.

Antigua seawater desalination plant poised for start

West Indies island, Antigua is currently testing a reverse osmosis seawater desalination facility which could come on stream in March.

Free IDE webinar this month offers insight into giant reverse osmosis plant projects

IDE will be leading a free online seminar (webinar) this week; Overcoming The Hurdles of Mega-Sized RO Desalination Plants in partnership with D&WR.

Dubai invites bids for turnkey solar-powered reverse osmosis desalination project

The Dubai Electricity and Water Authority (DEWA) has issued a tender inviting bids for the design, installation and testing and commissioning of a pilot photovoltaic-powered pumping and reverse osmosis water desalination system.

Oil and gas player commissions produced water treatment plant

Encana Oil and Gas has designed and commissioned a reverse osmosis (RO) desalination plant to treat produced water from its oil sand wells in the Moneta Divide, Wyoming. It has since sold the plant along with all its Moneta Divide assets to Aethon Energy.

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.

Town looks to pipeline and desalination

The Western Australian Water Corporation plans to build desalination units before next summer to secure the water supply at Denmark after the southern Western Australian town's second driest year ever.

Reverse osmosis plant put on hold after rainfall.

After rainfall boosted Lake Palo Pinto in Texas, US to almost 30% capacity, officials at the city of Mineral Wells have elected to delay completion of a reverse osmosis facility for at least 12 months.

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.

Mott Macdonald to advise lender in Moroccan dealination project

Banque Marocaine du Commerce Extérieur has appointed consultant, Mott Macdonald, as technical advisor in support of the bank's role as financer for a MAD 937 million (US$ 94.6 million) desalination project in Morocco.

Hyflux-led venture wins deal for giant Oman desalination plant

A consortium led by Singapore-based desalination company, Hyflux, has won a contract to build a OMR 100 million (US$ 260 million) seawater reverse osmosis desalination plant in Oman. The 200 Ml/d independent water project located in Qurayyat, in the Muscat governorate, will be the largest in the sultanate and supply some 17% of its peak demand.

Water Planet joins forces with Applied Membranes

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

Qatar to set up US$ 500 million reverse osmosis desalination plant

Qatar utility, Qatar General Electricity and Water Corporation (Kahramaa) is set to establish a US$ 500-million, reverse osmosis (RO) desalination plant that will produce freshwater at 136 Ml/d.



US Navy reverse osmosis nears battle readiness

A prototype reverse osmosis (RO) system developed by the US Navy has successfully completed testing for use in the service's newest class of warship - littoral combat ships (LCS) - designed for use close to shore.

Papermaker ups water performance with Desalitech reverse osmosis

Arizona-based papermaker, Doubletree Paper Mills, said it has increased its purified water recovery by 20% at its Gila Bend plant since replacing its reverse osmosis water treatment system in 2014 with Desalitech's ReFlex RO system. The modification has also cut wastewater output by almost two thirds and lopped 25 % off energy consumption said Doubletree.

Black & Veatch wins consultant contract for giant Jeddah desalination project

Saudi Arabia's Saline Water Conversion Corporation (SWCC) has awarded consultancy, Black & Veatch, the engineering and design contract for a major desalination project that will supply the kingdom's second largest city, Jeddah.

Acciona wins desalination deal in Cape Verde islands

A consortium of Spanish water technology firm, Acciona Agua, and construction firm Sade-CGTH, has won a €16 million (US$ 18.5 million) design and build contract for a 5,000 m³/d seawater reverse osmosis (SWRO) plant on each of the African Cape Verde islands of Sal and São Vicente from the local energy and water utility, Electra-SARL.

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.

Asia's largest reverse osmosis plant begins operation

Asia's largest reverse osmosis plant, with a capacity to produce 10 Ml/d, has recently been inaugurated in Pakistan's drought-ridden Sindh province.

Biwater completes Virgin Islands desalination plant

Water technology company, Biwater, has started full commercial operation of a new 10,400 m³/day reverse osmosis seawater desalination plant constructed by the firm on the island of Tortola in the British Virgin Islands.

GDF Suez kicks off giant Mirfa desalination project

Paris-based GDF Suez has begun work on the desalination component of its Mirfa gas-fired power and water project, the French firm said.

Hyflux-led group wins US$ 250 million desalination plant tender

A consortium led by Singaporean water and environmental solutions company Hyflux has been awarded a US$ 250 million contract to design, build, own and operate an independent water project (IWP) in Oman.

Palo Pinto passes desalination plan

With water supplies for the Texas city of Mineral Wells dwindling, Palo Pinto county has approved, as part of its drought contingency plan, the construction of a US$ 6.1 million reverse osmosis desalination plant to treat water from the Brazos river.

Reverse osmosis to drive US membrane demand to $6.2 billion in 2018

Water and wastewater industry demand for membranes will drive a 7.9%-a-year increase in US demand to reach US$ 6.2 billion by 2018 with reverse osmosis membranes surging 8.6% a year according to report by market research firm, The Freedonia Group.

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.

San Diego gives green light to potable reuse plan

San Diego's city council has given the green light to the construction of a 415Ml/d facility for direct potable reuse of wastewater costing up to US$ 3.5 billion. The reverse osmosis recycling scheme is expected to meet as much as a third of San Diego's daily drinking water requirement by 2035 making it the second largest potable reuse plant in the US.

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%.

Saudis to build second expansion to Oman desalination plant at Barka

Saudi generation and desalination firm, ACWA Power Barka has won a contract with Oman Power and Water Procurement (OPWP) to build a second seawater reverse osmosis plant at Barka 60km from the Omani capital, Muscat.

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.

Africa's largest desalination plant opens

Singapore-based desalination company, Hyflux, has officially opened its recently completed 500,000 m³/d desalination plant at Magtaa, Algeria. The facility is Africa's biggest and contains the largest ultrafiltration pre-treatment facility in the world according to Hyflux.

Degremont chooses Dow for green reverse osmosis pilot

Suez Envionnement water treatment subsidiary, Degremont Technologies, has selected Dow Water and Process Solutions to supply ultrafiltration and reverse osmosis membranes for a pilot desalination project in Abu Dhabi, in partnership with renewable energy company Masdar.

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.

RWL wins contract to build desalination plant in Argentina

RWL Water has won a contact to build what it claims will be Argentina's largest seawater reverse osmosis (SWRO) desalination plant.

Belville planning board approves reverse osmosis plant

A request by US local water utility, H2GO (Brunswick Regional Water and Sewer), for an amendment to allow for the building of a reverse osmosis brackish water purification plant has been approved unanimously by the planning authority at Belville, North Carolina.

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.

POSCO claims desalination first in Korea

Korean construction company POSCO E&C has completed the construction of what it claims to be the nation's first commercial seawater desalination plant.

Morocco's first solar-powered desalination starts up

Morocco's first solar-powered desalination plant has started operations near Marrakech.

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.

Singapore utility awards desalt deal to Chinese-led group

Singapore's national water agency, PUB, has selected the BESIN-UEN consortium - led by China's Beijing Enterprises Water Group (BEWG) - as the preferred bidder to construct the second reverse osmosis (RO) plant sited at Changi under a public/private partnership.

HICL ups stake in Victorian Desalination to over 9%

Infrastructure investor, HICL Infrastructure, has upped its holding in Australia's Victorian Desalination public private partnership project to about 9.3% with an additional 3.4% stake acquired for £25.2 million (US$ 40.5 million).

STW Water bags Horizon, Texas US$ 2.2 million brine concentrator deal

STW Water has won the US$ 2.2 million contract to design, engineer and construct a reverse osmosis concentrator for the Municipal Utility District of Horizon City, Texas.

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.

Desalia starts works on Egypt reverse osmosis plant

Spain's Desalia has started site works for a new, 24,000 m³/d seawater reverse osmosis plant west of Alexandria, Egypt near the city of Matrouh.

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.

Global desalination market to grow 9% a year

The global water desalination market is set to grow at nearly 9% a year to 2018 according a report by market researcher, TechNavio.

Namibian government poised to table offer for Areva desalination plant

Namibia's government is poised to table an offer to buy Areva's seawater desalination plant at Trekkopje and to use the 20 million m³-a-year facility to supply the country's semi-arid Erongo region.

Planned Mexican desalination plant to serve US utility

Reverse osmosis desalination company, Consolidated Water, has reported progress in its plan to build a seawater desalination plant in Mexico to supply a US water utility.

Israeli group to build desalination plants in Dar-es-Salaam

Water authorities in Dar-es-Salaam are planning to work with an Israeli consortium in constructing two reverse osmosis desalination plants to alleviate water shortage in the Tanzanian commercial capital.

Purification plant donation may slow Sri Lankan kidney disease spread

A recently commissioned reverse osmosis water purification plant donated by water treatment company Puritas will help to curb the spread of chronic kidney disease in the North Central Province of Sri Lanka according to the plant owner. Some 400,000 people in the region are understood to be currently affected with the disease.

Spanish opposition calls for end to paralysis of giant desalination project

Opposition politicians in Alicante, Spain have called on the country's central government to implement the completion of two, long-delayed reverse osmosis desalination plants to avoid urgent problems in the province amid a current drought.

Venezuela's largest desalination plant to start this year

Venezuela state-owned oil firm PDVSA expects by the end of the year to start operating a US$ 200 million seawater reverse osmosis desalination plant to provide water for oil refineries on the Paraguaná peninsula and drinking water for local communities.

Torishima wins pump deal for Chilean reverse osmosis desalination

Japanese pump manufacturer Torishima Pump has received an order for high-pressure pumps and booster pumps for a new reverse osmosis desalination plant being built in Copiapo, Chile.

Delayed Tarpon Springs reverse osmosis plant nears completion

Construction of a long-awaited US$ 45 million brackish water reverse-osmosis plant at the US city of Tarpon Springs, Florida is close to completion a few weeks behind schedule.

LG Chem seeks global player status in reverse osmosis membranes

South Korean petrochemicals company LG Chem has unveiled plans to become a global player in the market for reverse osmosis membranes for desalination.

Joint venture wins Perth groundwater replenishment contract

Western Australia's Water Corporation has awarded a contract to design, construct, and commission a full-scale advanced water replenishment plant (AWRP) to a joint venture between CH2M Hill,and engineering company Thiess. The project will help secure Perth's drinking water supplies through 2060

Acciona wins Italian jobs

Spanish infrastructure company Acciona has won a contract to supply potable water through seawater reverse osmosis (SWRO) desalination on the Italian islands of Pantelleria, Linosa and Lampedusa.

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.

Dow signs Fluor to build new Saudi desalination component factory

The Dow Chemical Company has appointed Fluor Corporation to build a new factory to manufacture reverse osmosis components for desalination plants in Saudi Arabia.

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

Pure Aqua builds solar-powered desalination for Cameroon

US-based Pure Aqua has designed and manufactured six solar-powered reverse osmosis water purifiers for river water in the African state of Cameroon.

Point Lisas nears end of sixth expansion

Desalcott's Point Lisas seawater reverse osmosis plant in Trinidad, West Indies, is nearing completion on its sixth expansion since it was commissioned in 2002.

Planned Texas inland desalination plant will be USA's biggest

San Antonio Water System (SAWS) is constructing what will become the largest inland desalination plant in the USA. The plant will desalinate groundwater from the Wilcox Aquifer in southern Bexar County, Texas.

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.

Saudi plans two more giant desalination plants

Saudi Arabia's Saline Water Conversion Corporation (SWCC) has unveiled plans to build two huge sea water desalination plants including a vast 1.5 million m³/day capacity hybrid plant with 30% of its production coming from reverse osmosis and the rest from thermal desalination.

Saudi Arabia unveils plans for giant desalination plant

Saudi Arabia's Saline Water Conversion Corporation has announced plans for what would be the world's largest desalination plant.

SWCC governor Dr AbdulRahman Al-Ibrahim and Ryuzo Sakamoto, chairman of Toyobo, opening the Rabigh plant.

Toyobo desalination membrane plant opened in Rabigh

The ACWA-Toyobo joint venture in Saudi Arabia, Arabian Japanese Membrane Company LLC (AJMC), opened its reverse-osmosis membrane production facility in Rabigh on 29 May 2014.

Abengoa to build SWRO plant in Agadir, Morocco

Spanish contractor Abengoa has been chosen by Morocco's Office National de l'Electricité et de l'Eau Potable (ONEE) to construct a new desalination plant in Agadir, Morocco.

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.

Grenada government tries again with RO desalination

The report on the Grenada government's website on 21 May 2014 that it was building reverse-osmosis (RO) desalination plants on the islands of Carriacou and Petite Martinique might not be quite as good as it sounds.

Fluor to build Dow's RO membrane factory in Saudi Arabia

Fluor Corporation has been awarded a contract by the Dow Chemical Company to build Dow's reverse osmosis (RO) membrane manufacturing facility in Jubail Industrial City II in Saudi Arabia.

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.


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