Dissolved Air Flotation


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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.

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).

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).

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.

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.



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.

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.

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 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.

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.

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.

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.

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.

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.

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).

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.

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).

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.

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.

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.

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.


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