Pretreatment, Turbidity


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New clarifier solves Virginia UF membrane problems

Funds from the US Environment Protection Agency (EPA) have enabled completion of a new pretreatment system for an ultrafiltration membrane system at the Fairmont Water Filtration Plant in West Virginia.

Qingdao desalination plant starts commercial operation

Spanish company Abengoa has begun commercial operations at the 100,000 m³/d desalination plant in Qingdao in Shandong province, the second largest commercial port in northern China.

Veolia sells boiler-feed pretreatment to 3 US refineries

Pretreatment for high-purity boiler feedwater is to be supplied to three refineries on the Gulf of Mexico in the USA by Veolia Water Solutions & Technologies.

Tubular membranes replaced at South Africa coal plant

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

IX + ceramic membrane water treatment plant unveiled

A water treatment plant in the Netherlands combining ion-exchange (IX) with ceramic membranes was presented to the water industry for the first time on 12 May 2014 by PWN Technologies of Velserbroek.

Brownsville pilot study published

Pilot study results from consultant NRS Consulting Engineers have confirmed that seawater desalination on the shore of the Ship Channel in Brownsville, Texas, USA, is technically feasible.

Dow UF is sole pretreatment for Chinese cogen plant

China's ShanXi DaTong Co-gen has selected Dow ultrafiltration (UF) membranes for its 300MW heat/electricity cogeneration plant in DaTong in ShanXi province.

Doosan Enpure secures Escondida pretreatment contract

Doosan Enpure has secured a US$ 17 million contract to design, procure and supply the pretreatment plant for the desalination part of the Escondida Water Supply Project at the world's largest copper mine in Chile's Atacama desert.

SEDA to hold workshop on pretreatment for RO/NF

The Southeast Desalting Association is holding a workshop on 12 February 2014 at the Town of Jupiter Water Treatment Plant in Florida on Pretreatment for Reverse Osmosis (RO) and Nanofiltration (NF).

Biwater wins RO job at Jacksonville treatment plant

Three 1 MGD (3,875 m³/d) reverse osmosis (RO) trains are to be delivered by Biwater as part of a contract in Jacksonville, North Carolina, USA, from TA Loving Company.

The reverse-osmosis hall at Tuaspring

Tuaspring SWRO desalination plant opens in Singapore

Singapore's second large seawater desalination plant was officially opened on 18 September 2013 by the prime minister, Lee Hsien Loong.

SEDA to hold chemicals workshop in November

The Southeast Desalination Association is to hold a Technology Transfer Workshop in Coral Springs Florida on 14 November 2013.

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.

Lamberts Bay seawater desalination goes to Veolia

A 1,700 m³/d seawater desalination plant, upgradeable to 5,000 m³/d, is to be built in Lamberts Bay in South Africa for the Cederberg Municipality by Veolia Water Solutions & Technologies South Africa.

TEP expert dies in Galapagos fall

Professor Tom Berman, best known in the desalination world for his work on transparent exopolymer particles (TEPs), died last week after a fall during a vacation in the Galapagos Islands.

Berman joins D&WR/IDA online symposium team

Tom Berman, research professor emeritus of the Kinneret Limnological Laboratory, Israel, who is a leading expert on biofouling and transparent exopolymer particles (TEP) in reverse osmosis, has been added to the speakers for the International Online Symposium on Pretreatment for Seawater Reverse-Osmosis Desalination.

Second Chennai SWRO plant commissioned

The Nemmeli desalination plant in Tamil Nadu, India, was commissioned on 22 February 2013 by the state's chief minister, Selvi J Jayalalithaa. It is the second seawater reverse-osmosis (RO) plant to provide drinking water for the city of Chennai.

Hitachi and Veolia duo wins US$ 240 million Iraq pretreatment contract

A consortium of Japanese and French industrial giants, Hitachi and Veolia Environnement, alongside Egyptian engineering firm, ArabCo, have won a ¥ 24 billion (US$ 240 million) order from the Iraqi government to build pretreatment facilities at a desalination plant in Basrah, Iraq.

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.

Two workshops ahead for SEDA in January

The Southeast Desalting Association (SEDA) is holding two technology transfer workshops in Florida at the end of January 2013.

Degrémont wins brackish-water contracts in Riyadh

Suez Environnement subsidiary Degrémont has been awarded two contracts worth EUR 40 million to supply reverse-osmosis (RO) brackish-water desalination plants at 14 sites in Riyadh, Saudi Arabia.

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.

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).

Nirosoft wins large Colombian desalination plant

Nirosoft Industries Ltd has been awarded a contract by Pacific Rubiales Energy Corp (PREC) for design and construction of a produced-water desalination plant in Colombia.

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.

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.

Florida RO chemical pretreatment workshop for SEDA

A technology-transfer workshop on Chemical Pretreatment for Reverse Osmosis Technology is to be held in Dunedin, Florida, by the Southeast Desalting Association (SEDA).

Hyflux given loan for membranes and high‑pressure pumps

Singapore's Hyflux Ltd announced on 14 June 2012 that its wholly-owned subsidiary, Hydrochem (S) Pte Ltd, has agreed a US$ 14.4 million loan with the Japan Bank for International Cooperation (JBIC) for the purchase of key components for the Tuaspring Desalination Plant in Singapore.

VWS buys inge UF modules for oil rig

VWS Westgarth has awarded a contract to BASF subsidiary inge GmbH for 600 dizzer® ultrafiltration (UF) modules for an oil rig.

UF membranes tackle silica at Indian powerplants

Pentair X-Flow HFS 60 Silica ultrafiltration (UF) membranes are to be used in two projects in India for the removal of colloidal silica from surface water.

Canada/Norway study of pretreatment for osmotic power

Pretreatment of fresh water for an osmotic power plant is to be studied by Canada's Hydro-Quebec as part of a three-year agreement with Norway's Statkraft to speed up the development of osmotic power.

Pentair X-Flow UF pretreatment for Ashdod desalination

The giant Ashdod seawater reverse-osmosis desalination (SWRO) plant under construction in Israel is to have ultrafiltration (UF) pretreatment supplied by Pentair X-Flow.

X-Flow UF pretreatment chosen for Al Zawrah SWRO

Cadagua SA has chosen ultrafiltration (UF) pretreatment from Pentair X-Flow for the Al Zawrah seawater reverse osmosis (SWRO) desalination plant in Ajman, United Arab Emirates.

Amiad filters to pretreat Korean steelworks RO feed

Microfibre filters to pretreat a reverse-osmosis (RO) plant are being provided for one of South Korea's largest steel factories by Amiad Water Systems.

German/Saudi JV to make ceramic membranes for RO pretreatment

German nanotechnology investment company Nanostart announced on 20 October 2011 that one of its holdings, ItN Nanovation AG, had finalised a joint venture (JV) agreement with Saudi Arabian company Jaffali to produce ceramic flat membranes (CFMs) primarily for pretreatment for reverse-osmosis.

Australians win Cape Verde desalination agreement

A letter of intent involving a desalination plant with an initial capacity of 4,000 m³/d has been given to Water Resources Group (WRG) of Perth, Australia, from the Municipality of Santa Caterina in Cape Verde.

Dutch to build ceramic membrane demo plant in Singapore

PWN Technologies (PWNT) of the Netherlands is to build Singapore's first ceramic membrane demonstration plant at Choa Chu Kang Waterworks.

Amiad filters provide pretreatment in Brazilian UF reuse project

Disc filters are to be supplied by Amiad Filtration Systems Ltd to protect ultrafiltration membranes in the Aquapolo tertiary wastewater treatment and reuse project in São Paulo, Brazil.

Amiad disc filters in Chennai desalination pretreatment

Arkal disc filtration technology made by Amiad Filtration Systems has been selected as part of the pretreatment system for the seawater desalination plant currently being built for the Chennai Metropolitan Water Supply & Sewage Board on India's east coast.

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).

Ceramic filters bought for Saudi RO pretreatment

German start-up company ItN Nanovation AG, which makes nanofiltration ceramic products for the water industry, announced on 15 March 2011 an order in Saudi Arabia for its CFM Systems® nanoceramic-based filtration system for water purification.

CaribDA pretreatment workshop set for Antigua

A workshop on pretreatment for seawater reverse-osmosis (SWRO) desalination plants is being held by the Caribbean Desalination Association (CaribDA) on the island of Antigua on 7-8 April 2011.

Wabag JV lands Oman port desalination contract

Chennai-based Wabag Ltd, in joint venture with fellow Indian contractor Nagarjuna Construction Company (NCC), has been awarded a contract for the completion of a seawater treatment plant, which will supply desalinated water to various industrial production plants in the Sohar International Port Complex.

Siemens to supply 88,000m³/d UF pretreatment for Scottsdale

Siemens Water Technologies announced on 14 December 2010 a US$ 7 million contract to supply 11 Memcor CP membrane filtration systems for the City of Scottsdale Water Campus Advanced Water Treatment (AWT) Facility expansion in Arizona, USA.

Osmoflo to provide desalination for Australian steelmaker

Australian steel producer OneSteel has contracted Osmoflo to finance, design, build and operate for 10 years a 4,000 m³/d desalination facility at its Whyalla plant on the river Murray in South Australia.

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.

Norit to supply UF pretreatment for Qingdao desalination

Norit X-Flow has signed an agreement with Befesa to supply the UF pretreatment technology for the Qingdao Desalination Project in Shandong province, China.

The ultrafiltration system in Abu Dhabi supplied by inge watertechnologies AG will treat 80,000 m³/d.

UF modules ordered for UAE steelworks' RO pretreatment

Ultrafiltration modules from Germany's inge watertechnologies AG have been ordered for a 80,000 m³/d seawater reverse-osmosis desalination plant at the Emirates Steel Industries steelworks in Mussafah, UAE.

Chennai II desalination to have Norit UF pretreatment

Norit X-Flow is to supply, install, commission and start up the ultrafiltration (UF) pretreatment package for the Nemmeli seawater reverse osmosis plant in Chennai, India. It will be the first advanced membrane desalination pretreatment system in the country.

Severn-Trent wins Chilean mining desalination contract

US water and wastewater treatment company Severn Trent Services has been awarded a contract to provide a seawater desalination plant that will serve the potable and process water needs of the Minera Esperanza copper and gold mine in Antofagasta, Chile.

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.

The Ikusasa membrane plant

First indigenous UF plant to open in South Africa in May

The first large drinking water purification demonstration plant in South Africa based on locally manufactured membranes, an 800,000 L/d plant, is currently under construction for Overberg Water in the Western Cape and due to start up in May 2010.

Pretreatment course scheduled by EDS for May 2010

The European Desalination Society (EDS) on 15 January 2010 announced a four-day course on Pretreatment, membrane fouling and scaling to be held in Genoa, Italy, on 31 May - 3 June 2010.

Hyflux may build two large desalination plants in Libya

Hyflux Ltd of Singapore and General Desalination Company (GDC) of Libya signed a memorandum of agreement (MOA) on 24 June 2009 giving Hyflux the rights to work with GDC to jointly invest into and develop two reverse-osmosis desalination plants in Libya.

CH2M Hill poised for Kalba desalination mobilization

Civil work on the 3.0 MIGD (13,368 m³/d) Kalba seawater reverse-osmosis (SWRO) desalination plant in the United Arab Emirates has almost been completed by the Sharjah Electricity & Water Authority (SEWA).

Gulf red-tide early-warning system funding 'soon'

A new early-warning system in the Gulf for harmful algal blooms (HABs), also known as red tides, using satellite imagery, remote sensing, and modeling could be one result of a conference on HABs held on 16‑17 April 2014 by the Middle East Desalination Research Center (MEDRC).

Abilene wastewater overhaul uses GE pretreatment

The city of Abilene, Texas has completed its installation of GE's LEAPmbr wastewater pretreatment system as part of a major upgrade to the city's Hamby wastewater treatment plant.

Q&A: AMTA president Brent Alspach on why the need for membranes has never been more acute

In the week of the AMTA/AWWA Membrane Technology Conference 2018, in Florida, US, Brent Alspach, president of AMTA and director of applied research at Arcadis, outlines the water challenges and how current and in-development membrane-based treatments are addressing them.

The upgrade of La Mesa-2 will improve water supply to five million people in Manila, Philippines

Wabag wins $60 million contract to upgrade La Mesa-2 in Manila

Wabag Philippines has won a project to retrofit and upgrade the 900,000 m3/d La Mesa-2 water treatment plant in Manila, Philippines.

Omya Webinar

New Remineralization Process for desalinated water providing stable, turbidity free pristine water quality

Wellthy has tested its system on waters from Yangon river, whose turbidity is rising due to lengthening rainy seasons in Myanmar

Tokyo's Wellthy Corp forms joint venture in Myanmar

Mitsubishi Chemical Corporation subsidiary Wellthy Corp has formed a joint venue with Myanmar Water Engineering & Products (MWEP) to provide EPC and water quality analysis services in Myanmar.

Two direct potable reuse projects are currently in operation worldwide, in Texas, US, and Windhoek, Namibia

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.

The WRF wants to provide guidance on blending for direct potable reuse water projects

WRF unveils initial findings of study into blending variables in DPR

The US Water Research Foundation has shared preliminary findings from its ongoing research into the impact of blending variables on direct potable reuse water.

Engineers check the systems at Dow's research and development centre in Tarragona, Spain

Dow to pilot petrochemical wastewater treatment at its ethylene cracker facility

Dow Water & Process Solutions is planning to demonstrate a new treatment solution for petrochemical wastewater at its site in Tarragona, Spain, from next year.

PolyCera could

Water Planet introduces "revolutionary" new polymeric membranes

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

Inge's ultrafiltration technology wins place in desalination upgrade

Subsidiary of chemical giant, BASF, Inge, will supply its ultrafiltration technology for San Jose Water Company's upgrade of its 40-year old Montevina Water Treatment Plant. Inge forecast the project will be "well noted in the industry."

Partnership launches ceramic trial

Netherlands-based PWN Technologies, in partnership with Indian water treatment firm VA Tech Wabag and Japanese membrane maker, Metawater, has launched a trial to demonstrate the effectiveness of ceramic membranes as pre-treatment for seawater reverse osmosis.

Membrana filtration curbs corrosion in Disney Shanghai cooling

Membrane manufacturer Polypore has supplied its Membrana ultrafiltration units for Shanghai Disneyland to curb corrosion in the resort's cooling water system.

Swiss water treatment to use PAC/UF combination

Wabag Water Technology has announced two water-treatment contracts in Switzerland based on ultrafiltration (UF) and worth around € 6 million which were won by the company at the end of 2012.

The ultrafiltration treatment system at High Point water treatment plant

Clarifier brings quality increase to UF treatment plant

Alabama is not a US state that immediately springs to mind in connection with membrane water treatment, which is why a poster paper at the recent AWWA/AMTA conference in Arizona caught the eye of D&WR. Opened in January 2011, the High Point Water Treatment Plant has used a solids contact clarifier and ultrafiltration to improve its overall water quality by reducing turbidity, removing pathogens, and meeting secondary standards.This article first appeared in the May/June 2012 issue of Desalination & Water Reuse magazine.

Huangyong paper factory.

Major Chinese UF order for inge watertechnologies

A major order from China for ultrafiltration (UF) equipment was announced on 25 May 2011 by inge watertechnologies AG, which is going to be taken over by BASF later this year.

Norit UF membranes for Swedish water treatment

A surface-water treatment plant that will be used to supply Göteborg, Sweden's second largest city, is to use ultrafiltration (UF) technology supplied by Norit X-Flow of the Netherlands.

IDA launches reverse-osmosis certification program

The International Desalination Association (IDA) is to launch a reverse‑osmosis training certificate associated with its recently launched IDA Desalination Academy.

Timeline established for IDA desalination energy guide

The International Desalination Association (IDA) has established a timeline for producing its guidelines for reducing energy consumption in desalination ending at its 2015 World Congress.

EDS publishes details of membrane design course

The European Desalination Society (EDS) has published details of its first event in 2013, a three-day intensive course on Membrane Technology Process & System Design.

Melbourne researchers' anti fouling membrane claim

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

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.

Nirosoft to build small SWRO plant in Chile

Chilean regional water utility Aguas De Altiplano has awarded a contract to Nirosoft Industries for a small seawater reverse-osmosis (SWRO) desalination plant.

Kuwait plant to get GE membranes

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

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.

Membrane technology added to Polish power plant

A third demineralization line using membrane and ion-exchange technology is to be added to the extension of the water treatment plant for the Patnów II power station in Poland.

EDS publishes desalination courses line-up for 2013

Five courses for the first half of 2013 have been announced by the European Desalination Society (EDS). All except one will be staged in Genoa, Italy.

Caribbean desalination expansion completes tests

The Desalination company of Trinidad and Tobago (Desalcott) has recently completed a performance test of its expanded Point Lisas seawater reverse osmosis plant.

X-Flow commissions Chinese produced-water projects

Three water-reuse projects for oilfields in China that use Pentair X-Flow ultrafiltration (UF) membrane technology have been commissioned recently.

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.

Using UF to pretreat Chile's SWRO mining desalination plants

Two desalination plants are described in this article to illustrate the use of ultrafiltration (UF) as pretreatment to seawater reverse-osmosis (RO) desalination in Chile. One plant (Gas Atacama) was commissioned in June 2011 and has since been operated successfully. A second plant is currently under construction. This article first appeared in the August/September 2012 issue of Desalination & Water Reuse magazine.

Membrane troubleshooting workshop announced by SEDA

The Southeast Desalting Association has announced a workshop on Operating & Troubleshooting Membrane Systems to be held in Florida in October 2012.

IX system improves Alabama MF plant's performance

The City of Oneonta in Alabama, USA, commissioned a 3 MGD (10,500 m³/d) MIEX® ion-exchange system in August 2012 to provide dissolved organic carbon (DOC) removal prior to coagulation and microfiltration of Oneonta Utilities' Little Warrior river water source.

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."

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

AMTA unveils annual gongs for membrane experts

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

Nanovation wins US$ 1.7 million Veolia contract in Saudi

Germany's Nanovation has been awarded a €1.3 million (US$ 1.7 million) contract to supply its flat sheet ceramic ultrafiltration membranes to Veolia Water's VWS Saudi Industries for a new waterworks project at Al Quaiyah, east of Jeddah.

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.

Amiad disc filters to protect Ashdod ultrafiltration

Amiad Water Systems has won a US$ 1.67 million contract to provide an Arkal Super Galaxy automatic disc filtration system (SpinKlin R) for the protection of ultrafiltration membranes at the Mekorot Group's Ashdod Desalination Plant, which will be one of the largest in Israel.

Pentair X-Flow wins UF order for Ghallilah desalination

Ultrafiltration (UF) membranes and skids are to be supplied to the 15 MIGD (68,000 m³/d) seawater reverse osmosis (SWRO) desalination plant at Ghallilah, Ras Al Khaimah, United Arab Emirates, by Pentair X-Flow.

Nine desalination studies bag US$ 1.4 million funding

Nine research projects and pilot studies will share US$1.4 million in funding under a desalination and water purification research programme set up by the US Bureau of Reclamation.

H2O Innovation wins Canadian and US contracts

A 5,000 m³/d nanofiltration water treatment plant is to be provided for the city of Saint-Tite, Quebec, Canada, by H2O Innovation Inc.

Researchers cast doubt on economics of osmotic power

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

Biwater delivers Jacksonville desalination

Water and wastewater management company Biwater has delivered a custom 15 Ml/d reverse osmosis desalination system for Onslow Water and Sewer Authority near the USA city of Jacksonville, North Carolina.

Pentair X-Flow wins Jubail ultrafiltration order

Pentair X-Flow announced on 4 April 2012 an order from Al Fatah Water & Power to supply its Seaguard ultrafiltration (UF) membranes and skids to the Jubail Phase 2 seawater reverse osmosis (SWRO) desalination project in Al Jubail, Saudi Arabia.

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.


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