Indirect Potable Reuse, Water Reuse, Recovery, Monitoring, Reverse Osmosis, Malta


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San Diego approval leads large SoCal water reuse surge

The board of the San Diego County Water Authority on 22 May 2014 approved support for the City of San Diego's proposed large-scale water recycling project, Pure Water San Diego, which the water authority has identified as the region's most likely next source of local supply.

Escondido hires consultants for potable water reuse

The City of Escondido in southern California approved on 27 June 2012 spending of US$ 1.14 million to hire a team led by Black & Veatch and including Brown & Caldwell for services towards its Indirect Potable Reuse Program.

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.

MBR/RO at heart of PepsiCo reuse plant in Chile

A membrane bioreactor (MBR), reverse osmosis (RO) and ultraviolet (UV) disinfection are all part of a wastewater treatment and reuse plant upgrade being completed by Siemens Industry Automation Division for PepsiCo in Chile.

Innovations in IDA Congress technical program

Round-table sessions and touch-screen availability of poster presentations will be used for the first time in the International Desalination Association's World Congress in Dubai on 7-12 November 2009, IDA announced on 19 October 2009.

Final draft of San Diego water-reuse scheme published

The City of San Diego, California, has published the final draft of its Recycled Water Study - the culmination of a two-year process to develop a new vision for water reuse in the San Diego region.

Texas moves towards direct potable reuse

The US state of Texas has taken a step towards direct potable water reuse (DPR) with the Texas Water Development Board awarding a study project to Alan Plummer Associates Inc, consultants based in the state.

SEDA workshop to look at membrane pilot testing

The Southeast Desalination Association (SEDA) is to hold a workshop in Florida in April on Pilot Testing of Integrated Membrane Systems.

IDA reuse conference calls for abstracts

The International Desalination Association (IDA) on 1 February will open its call for extended abstract submissions to be considered for presentation at its International Conference on Water Reuse and Recycling: Turning Vision into Reality. The conference will be held on 25-27 September, 2016 in Nice, France.

Registration open for WateReuse research conference

Registration is open for the 18th Annual Water Reuse & Desalination Research Conference to be held by the WateReuse Research Foundation in Las Vegas on 19-20 May 2014.

Dan McCarthy, president and CEO of Black & Veatch

B&V puts forward four water-reuse recommendations

Four key recommendations have been put forward by Dan McCarthy, president and CEO of Black & Veatch's global water business, for overcoming global barriers to reuse of water as part of an integrated water industry portfolio.

Abstracts invited for WateReuse symposium in Dallas

The WateReuse Association (WRA) has issued a call for presentations and posters for its 29th Annual WateReuse Symposium, which will be held on 7-10 September 2014 in Dallas, Texas, USA.

RO consumes 4% of Malta's electricity, says new group

Reverse-osmosis desalination plants consume almost 4% of Malta's electricity supply, according to a statement from the newly-formed Malta Water Association (MWA) on 22 March 2011. The group, made up of hydrologists, engineers and other water experts, warned that urgent action is needed to protect Malta's water resources, which "are among the scarcest in the world and under severe stress."

ALADYR affiliates to International Desalination Association

The Asociación Latinoamericana de Desalación y Reuse del Agua (ALADYR) has become the newest affiliate organization to join the International Desalination Association (IDA), bringing to 15 the number of regional and association IDA affiliates around the world.

US$ 6.25 million equity investment for Desalitech

Reverse-osmosis (RO) innovator Desalitech Inc has secured an equity investment of U$$ 6.25 million led by Liberation Capital LLC, which will be used for business expansion and working capital.

Nine water purification projects bag US$ 1.49 million in funding

The US Bureau of Reclamation has selected nine projects to receive US$ 1.49 million under its Desalination and Water Purification Research programme.

Singapore setting for Desalitech pilot plant

A 200 m³/d pilot reverse-osmosis (RO) water treatment unit is to be set up in Singapore by Desalitech Ltd under a contract from a client who has yet to be named.

Osmoflo wins industrial water-reuse project

Australia's Osmoflo has won a tender to design, build, operate and maintain a Aus$ 5 million (US$ 5.3 million) water-recycling plant and reticulation system at the Nyrstar Port Pirie smelter north of Adelaide in South Australia.

Kevin Alexander

Kevin Alexander becomes VP at Hazen & Sawyer

Kevin Alexander, the lead membrane process and design expert on some of the most prominent indirect potable reuse projects in the US, has been appointed vice president and west regional manager at engineering firm Hazen & Sawyer as from November 2013.

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.

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.

California considering CEC monitoring in water reuse

The California State Water Resources Control Board is to consider adding monitoring of constituents of emerging concern (CECs) to its requirements for recycled water at its board meeting on 16 October 2012.

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.

China's Tri-Tech acquires Wisconsin desalination provider

Desalination and wastewater treatment provider J&Y International Inc, based in Wisconsin, USA, was acquired by subsidiaries of Tri-Tech Holding Inc of China on 9 June 2011.

Tata power plant installs cooling water reuse

India's largest power company, Tata Power, has installed a reverse osmosis plant at its Power House #6 power station in Jamshedpur to recover and reuse blow-down water from cooling towers.

Integrated Water wins US$ 1.5 million demonstration project deal

Water reuse specialist, Integrated Water Services, has won a contract to build a US$ 1.5 million, 380 m³/d indirect potable reuse demonstration project at the Ray Stoyer Water Reclamation Facility in San Diego County, USA.

Carollo selected for Texas DPR health check

Carollo Engineers has been selected by the Texas Water Development Board to carry out detailed public health analysis of the first direct potable water reuse (DPR) facility in the USA.

Maltese desalination test-bed shows SalTec energy-recovery advantages

Throughout the desalination industry, plant operators are looking for long-term solutions with lower lifecycle cost because of the link between water costs and energy costs. In order to meet operators' demands and requirements, equipment manufacturers are investing considerable resources in the development of new technologies that will reduce energy costs. The Water Services Corporation in Malta is one example of a forward-looking operator of a seawater reverse-osmosis (SWRO) plant seeking to ensure the production of high-quality drinking water at an affordable price. Established in 1993 to produce and distribute potable water on the islands of Malta and Gozo, WSC has an annual production target of 35 million m to satisfy the needs of its 400,000 residents and in excess of one million tourists. With the drive to produce greater efficiencies and water quality WSC has taken an opportunity to investigate and monitor the potential of a new technology from KSB, the SalTec pressure boosting and energy recovery system. The SalTec DT pressure exchanger in combination with KSB's HGM RO high-pressure pump creates a highly attractive proposition for RO plant designers and operators. The SalTec DT system provides a nominal capacity of 250 m /h, giving it the capability to operate in plants with train sizes ranging between 4,400 m /d and 5,000 m /d of permeate at common recovery rates.

Tunisia and Malta to share desalination expertise

Tunisia has signed an agreement with the Mediterranean island of Malta involving sharing of expertise on desalination plants.

Ceramic nanofiltration company gets big investor

ItN Nanovation AG, a start-up company in Saarbrucken, Germany, making nanofiltration ceramic products for the water industry, announced on 9 December 2010 a framework investment agreement with the US investment fund YA Global Master SPV Ltd, part of the Yorkville Group.

Asia-Pacific water-recycling conference calls for papers

The Australian Water Association (AWA), an affiliate of the International Desalination Association has collaborated with the Water Services Association of Australia and WateReuse Australia to present the Asia Pacific Water Recycling Conference 2013.

IDA announces May 2013 oil and gas conference

The International Desalination Association (IDA) is to organize its first technical conference focused on water treatment strategies for the oil & gas industry.

The IDA International Conference on Water Reuse and Recycling 2018 will feature two days of plenary, panel and technical sessions

IDA unveils lineup of speakers for water reuse conference

The International Desalination Association (IDA) has secured a stellar lineup of keynote speakers for its International Conference on Water Reuse and Recycling 2018, led by Spain's secretary of state for the environment, Maria Garcia Rodriguez.

Desalination / reuse part of large EIB loan to Spain

Desalination plants, water-reuse schemes and connections from them to water networks will be among schemes funded by a € 350 million loan from the European Investment Bank (EIB) to the Spanish government agency Acuamed.

World Bank publishes report on Arab water reuse

Total water reuse in the Arab world is estimated at 2,170 million m³ per year, according to a report just published by the World Bank summarising the findings of the Expert Consultation Meeting on Wastewater Management in the Arab World, convened in Dubai in May 2011.

Direct potable reuse to be debated at WRA symposium

The WateReuse Association has announced the program for its annual symposium, including a closing panel discussion entitled Direct Potable Reuse: Not a Pipe Dream Anymore?

August Rocky Mountain reuse workshop set for Golden

This year's Rocky Mountain Water Reuse Workshop is to be held at the Colorado School of Mines in Golden, Colorado, on 14 August 2014.

San Diego IPR demonstration project held up

Approval of a contract with Camp Dresser & McKee (CDM) for construction of an indirect potable water-reuse demonstration project in San Diego failed to pass a meeting of the Californian city's Natural Resources & Culture (NRC) committee on 16 June 2010.

WERF guidance on indirect reuse contaminant removal

A new report from the Water Environment Research Foundation in the USA concludes that examining multiple barriers of drinking-water systems can help assure the absence of detectable levels of trace organic compounds in recycled water.

Interview: Kati Bell, Stantec global reuse leader

Canadian engineering giant Stantec acquired water business MWH Global for $795 million, back in 2016. Now that the dust has settled on the deal, how well is the integration of the two organisations proceeding, and as the global water reuse practice hits its stride, how could its work help to shape the water markets of the future?

GE signs Saudi Arabian wastewater-reuse MOU

GE has signed a memorandum of understanding (MOU) on wastewater reuse with Miahona, a subsidiary of the Arabian Company for Water & Power Development Ltd.

Water-reuse bill to be debated in California assembly

A bill to completely revise California's water-reuse legislation was passed for its third reading on 25 May 2012 and will come up on the floor of the state assembly this week.

Arizona wants DPR/seawater desalination plan to start now

An immediate start on work to prepare for direct potable water reuse and seawater desalination is proposed by the Arizona Department of Water Resources (ADWR) in a report recently published by the US state's government.

US govt to invest US$ 135 million in water reuse

The US Department of the Interior announced on 15 April 2009 the investment of US$1 billion under the American Recovery and Reinvestment Act of 2009 (ARRA) in America's water infrastructure to create jobs and get the economy moving again. Of this, US$ 135 million is available for grants for water reuse and recycling projects.

Water-reuse funding may be used to counter drought

The US Secretary of the Interior Ken Salazar on 26 February 2009 called on the Bureau of Reclamation to explore ways in which funds recently appropriated to Reclamation under the American Recovery & Reinvestment Act for water reuse and other water projects might be used to help stretch California's water supplies in the coming months.

US water and wastewater may get US$ 11.8 billion boost

Water reuse measures totalling US$ 126 million to be undertaken by the Bureau of Reclamation are one of a number of measures included in the US$ 825 billion economic recovery legislation proposed by the House of Representatives Appropriations Committee on 15 January 2009, which is also likely to benefit upcoming desalination projects.

IDA is seeking original work for its 2018 International Conference on Water Reuse and Recycling

IDA issues final call for papers for upcoming reuse conference

The International Desalination Association (IDA) has issued a final call for abstracts for its 2018 International Conference on Water Reuse and Recycling, 24 to 27 June, in Valencia, Spain.

Support for indirect water reuse in Western Australia

Western Australia's Water Corporation announced on 23 March 2012 that a survey it conducted had revealed that three out of four people support moving to a full recycling scheme.

CaribDA to hold water reuse workshop in April

The Caribbean Desalination Association is to hold a Water Reuse Workshop in April 2013.

Papers deadline stretched for IWA reuse conference

The International Water Association (IWA) has extended the deadline for submission of outline papers for the 9th IWA International Conference on Water Reclamation & Reuse.

ACWA wins two membrane-based projects in Saudi

Two separate contracts for membrane-based water and wastewater projects in Saudi Arabia have been awarded to ACWA Emirates LLC of Dubai.

Oxnard AWPF currently under construction

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.

GE expands HERO licensing agreement

GE Power & Water announced on 1 February 2011 that it has completed a new expanded licensing agreement to allow it to continue offering High Efficiency Reverse Osmosis (HERO™) systems to help more of its industrial customers increase their water usage efficiency and reuse capacity.

Federal funds for Melbourne reuse project

Federal government funding totaling Aus$ 11.4 million (US$ 11.2 million) will enable City West Water in Melbourne, Australia, to roll out an aquifer and storage recovery scheme as part of its West Werribee Dual Supply project.

Aquatech wins ZLD job in Turkmenistan

Aquatech has been awarded a contract to design and supply a zero‑liquid discharge ZLD wastewater-reuse system in a gas‑field development project in Turkmenistan.

Biwater to supply UF and RO systems to California replenishment project

Biwater, UK, has won a contract to design, supply and supervise ultra-filtration and reverse osmosis systems for Southern California's Groundwater Reliability Improvement Program.

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.

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.

IDA World Congress on Desalination and Water Reuse will make a return visit to Dubai in 2019

IDA to return to Dubai for World Congress 2019

The International Desalination Association (IDA) is to return to Dubai, United Arab Emirates, for its World Congress in 2019, building on the earlier success of the IDA World Congress held in the emirate in 2009.

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.

Papers invited for 2013 AWWA/AMTA event

With the 2012 AWWA/AMTA Membrane Technology Conference under way this week in Phoenix, Arizona, a call for papers has been issued for next year's event in Texas.

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.

The facility site at SEA Lab

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.

Cadagua selects PX devices for Al Zawrah desalination

PX energy-recovery devices have been selected for the 45,000 m³/d Al Zawrah seawater reverse-osmosis (SWRO) desalination plant in Ajman, UAE, by the consortium led by Spanish company Cadagua.

ERI chief calls for less plant downtime

The new CEO of Energy Recovery Inc (ERI), Tom Rooney, in an interview with Desalination & Water Reuse (D&WR) at the International Desalination Association's World Congress in Perth, Australia, on 7 September 2011, revealed that the company was now focusing on the issue of plant utilization.

Containerized plant resolves district's drought difficulties

Membrane filtration company, H2O Innovation, has delivered a 3,200 m³/d containerized water treatment system to the Cambria Community Service District, California to "resolve promptly" the community's difficulties amid its tenth year of drought. The system treats a mix of brackish water, freshwater and secondary effluent to be injected into a groundwater basin.

Desalitech teams with TEC to target municipalities

Reverse osmosis (RO) specialist, Desalitech, has tied up with Treatment Equipment Company (TEC) to provide sales support for municipal water treatment projects.

CH2M Hill reports to USEPA on industrial water use

Water reuse is one of a number of trends for water usage in American industry identified in a report just published by engineering company CH2M Hill for the US Environment Protection Agency (EPA).

An 835 m³/d brackish-water closed-circuit desalination unit with swro-ccd design

CCD starts a new generation for reverse osmosis desalination

D&WR published an article in our August/September 2010 issue announcing Desalitech Ltd's Closed Circuit Desalination. Since that time, the company has acquired the services of Rick Stover (ex Energy Recovery Inc and Oasys Water). Here, he outlines the development of CCD technology since our previous article. This article first appeared in the November/December 2011 issue of Desalination & Water Reuse magazine.

Dr Isabel Escobar

Escobar appointed as editor-in-chief of IDA journal

Dr Isabel Escobar of the University of Toledo, Ohio, USA, has been appointed by the International Desalination Association (IDA) to succeed Dr Jim Birkett as editor-in-chief of the IDA Journal of Desalination & Water Reuse.

Singapore is testing technology to build water resilience and reduce its treatment footprint

Singapore ratchets up developments in water reuse

PUB aims to complete its 12,500 m3/d demonstration-scale plant for MBR systems for water reuse in mid-2017.

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.

Cost, regulation and water scarcity are driving a shift in mindset toward resource recovery in brine treatment

The Long Read: Where's the innovation in brine treatment?

As water scarcity bites and the drive to recycle water grows, the focus on recovering clean water and other resources from brine is sharpening. The challenge is particularly pertinent for industrial operators.

US Bureau of Reclamation seeks proposals for US$ 1.4 million funds

The US Bureau of Reclamation is seeking proposals under two funding opportunities totalling up to US$ 1.4 million to improve water treatment technologies aimed at increasing water management flexibility. The first opportunity is for research, laboratory studies and the second is for pilot projects.

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.

H2O Innovation takes Californian reuse contract

A contract to expand the Leo J Vander Lans Advanced Water Treatment Facility in Long Beach, California, has been awarded to Canadian company H2O Innovation Inc.

More desalination and reuse potential in Western Australia

Western Australia's Water Corporation is considering up to three seawater reverse-osmosis desalination plants along the southern coast of its area, known as Lower Great Southern, as part of a potential portfolio of water resources for the next 30 years.

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.

Aquatech's new ZLD system is designed to protect the River Nile, Egypt's only life-giving aquifer

Egypt's first ZLD plant is up and running

The first zero liquid discharge (ZLD) plant in Egypt, part of a water treatment facility designed and supplied by Aquatech, has been commissioned.

Ryan Kitzmiller (right), Ryan Osborn (front) and Jason Hunt with the HPB-1400.

Fluid dynamics secret to pressure-booster record

At the EuroMed conference in Tel Aviv, Israel, in October 2010, those on the FEDCO booth at the exhibition were all wearing big smiles. The reason was the performance achieved by the company s turbocharger energy-recovery device (ERD) for the Jeddah III seawater reverse-osmosis desalination project. A condition of the contract was that the ERD transfer efficiency exceeded 80%, something which had never before been achieved. Not only did the FEDCO machine hit the target, but the company predicts it can go even higher. This article first appeared in the November/December 2010 issue of Desalination & Water Reuse magazine.

The velocity cap intake at the Perth, Australia, SWRO plant after 18 months of operation.

Seawater Reverse Osmosis Desalination: Innovative Intake Designs

The search for additional reductions in the cost of seawater reverse-osmosis (SWRO) desalination needs new leads now energy recovery has gone about as far as it can go. The authors believe this can be done by improving raw-water quality using innovative intake designs. The use of "filtration" type intakes can have a significant effect on reducing the life-cycle cost of a SWRO plant. This article first appeared in the November/December 2010 issue of Desalination & Water Reuse magazine.

Padre Dam plant in drought-hit California has achieved industry-leading recovery rates

Desalitech recognised for topping water recovery rate records

Desalitech has won the IDA Industry Technology and Innovation Leader in Water Reuse and Conservation Award of Distinction, thanks in part to its work at Padre Dam Advanced Water Reclamation plant in Southern California.

Avshalom Felber, formerly Israel Ports and Railway Authority CFO, and deputy director of budgets at Israel's Ministry of Finance, has steered IDE for 14 years

Interview: IDE Technologies CEO Avshalom Felber

Above all, IDE is a solutions provider. So says chief executive Avshalom Felber, the former financial whizz turned water industry leader, as he outlines the company's unique mix of thermal and reverse osmosis (RO) technologies, operational expertise, and contractual nous.

Batch beats conventional RO at high recovery

The big push

UK-based researchers have developed a reverse osmosis desalination system that they say promises to meet the challenges in providing freshwater to the millions worldwide who lack access to it. The research leader explains how his team has addressed the dilemma of cutting energy demand while upping recovery. This article first appeared in the December 2015 issue of Desalination & Water Reuse magazine.

IDA finalises Huntington Beach desalination energy conference topics

The International Desalination Association (IDA) has finalised the speakers and topics for its new-style conference Desalination: An Energy Solution, which is being held on 2-3 November 2010 in Huntington Beach, California, the city likely to host the USA's next large desalination plant after Carlsbad.

Philippine/Japanese consortium buys UU Australia

United Utilities Australia Pty Ltd, which is involved in several membrane-based desalination and water reuse projects in Australia, has been bought by a consortium including Manila Water of the Philippines and Mitubishi Corp and JGC Corporation of Japan.

Australian membrane water-reuse plant starts commissioning

Work has begun on commissioning and testing the first stage of the membrane-based Northern Water Plant in Corio, Australia, 70 km south‑west of Melbourne.

Water filling station in a remote Indonesian fishing village.

Decentralised RO desalination plants serve Indonesian rural areas

Danish pump/reverse-osmosis company Danfoss launched its small-scale desalination unit, the Watercube 2, in 2009. The mini-plant was built round Danfoss pumping and energy‑recovery technology. The company then spun off this technology into a new company AqSep, which removed the attractive packaging and relaunched the machine as the WM9000E. The new model has a very functional design, was made for very easy maintenance and yet is compact and lightweight. This article describes how the WM9000E has now found favour in Indonesia due to its lower cost in remote areas compared with piped systems. This article first appeared in the May/June 2012 issue of Desalination & Water Reuse magazine.

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.

Veolia buys rights to ZDD desalination technology

Veolia Water Solutions & Technologies has acquired worldwide rights to commercialize a new patented zero discharge desalination (ZDD) technology developed at the University of South Carolina by ZDD Inc.

IDA Fellowship winners from Iran and Japan

This year's winners of the International Desalination Association's Fellowship awards come from Iran and Japan, IDA announced on 27 April 2009.

Doosan picks up prize for zero liquid system

Doosan Hydro Technology was among the winners of the 2015 David W York Water Reuse Project of Year Award for its part in the city of Palm Coast's zero liquid discharge (ZLD) plant at Citation Boulevard, Florida.

Dow to build RO membrane plant in Huzhou, China

A world-class manufacturing facility for Dow FilmTec™ reverse osmosis (RO) elements for desalination and water reuse is to be built in Huzhou, China, the Dow Chemical Co announced on 7 June 2012.

Kirkland Lake Gold will meet operating licence conditions with the new RO treatment for its produced water

Veolia Water Tech to deliver RO reuse plant for gold mine

Veolia Water Technologies has won a contract to design and supply a reverse osmosis (RO) plant enabling process water reuse at Fosterville Gold Mine in Victoria, Australia.

Pilot Desalitech SWRO commercial plant.

Doing away with RO energy-recovery devices

Energy-recovery devices have been a crucial element in the reduction of the cost of desalination during the past decade, bringing the technology within reach of conventional water resources costs in certain circumstances. Typical energy consumption for seawater reverse osmosis (SWRO) is now around 2.5 kWh/m . Desalitech's Closed Circuit Desalination, which does away with an energy-recovery device, reports energy consumption for SWRO of 1.65-1.87 kWh/m . This article was first published in the August/September 2010 issue of Desalination & Water Reuse magazine.

Depth Exposed Membrane for Water Extraction (DEMWAX™)

DXV Water Technologies has designed a novel membrane system that uses natural pressure, a very low recovery rate and gravity flow of feedwater past the membrane surface, resulting in an elegant, efficient system. Since the invention of the reverse-osmosis (RO) membrane researchers have tried to harness natural water-pressure, but past attempts mimic onshore processes with their configuration, recovery and flux. This low-flux low-recovery process will require more membrane than traditional systems; however, the elimination of intakes, outfalls, pre-treatment, pressure vessels and piping, energy recovery devices and coastal land will result in a water cost that is below many traditional sources. In addition to substantial energy savings, environmental and economic benefits that the DEMWAX system offers include: Mitigation of 'Brine' Disposal - the extremely low-recovery operation results in 'brine' at approximately 2-3% more concentrated than the surrounding ocean. Mitigation of Impingement and Entrainment - the intake velocity is several orders of magnitude less than typical intakes, virtually eliminating impingement and entrainment. Scalability - the system can be readily expan ded with the addition of cartridges and pumps. This article was published in the May/June 2009 issue of Desalination & Water Reuse.

Combining Forward Osmosis with Reverse Osmosis

A combination of forward osmosis with reverse osmosis could facilitate the treatment of some high fouling wastewaters. The system uses brine to draw water from the wastewater without high pressure or turbulence. Key element is the membrane's ability to allow rapid passage of water without much internal concentration polarization. The diluted draw solution can then be desalinated by reverse osmosis. The Two-Way Osmosis or TWO system may also be usable in very remote areas, where seawater ponds can be built for evaporative recovery of salt. Catalyx is designing a pilot system (patent pending) to desalinate seawater without external electric power. This article was published in the May/June 2009 issue of Desalination & Water Reuse.

Korea puts $170m into desalination SWRO and water reuse

The Republic of Korea has recently funded a six-year US$ 170 million research initiative in seawater desalination. Over 500 researchers from 16 universities will contribute to the work of the 50-member core team. Government leaders funded the research initiative in part due to the success of South Korean multinational firms in the desalination export sector. However, the South Korean desalination initiative has a humanitarian goal as well, since much of the world's population faces a future of uncertain access to clean water. SeaHERO (Seawater Engineering & Architecture of High Efficiency RO) was launched by the South Korean government in August 2007. The program is coordinated by In S Kim, executive director of the Center for Seawater Desalination Plant located at Gung Ju Institute of Science & Technology. The six-year program has the goal of providing innovation in reverse-osmosis membranes, energy recovery and reducing the cost of engineering, procurement, construction, operation and maintenance. This article appeared in D&WR magazine's August/September 2008 issue.

The new desalination plant at Playas de Rosarito will be on the coast adjacent to the existing power station

Consolidated Water lines up Mexican mega-project

The Playas de Rosarito seawater RO desalination mega-plant project has been six years in the making. It began as a twinkle in Consolidated Water's eye even before Mexico had introduced its new public-private partnerships law, but the act's introduction in 2012 gave the project a clear structure for moving ahead.


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