Coal Seam Gas, Municipal, Wastewater Treatment, Recovery, Cyprus, Hawaii
Commission warns Australia about gas-production wastewater
Handling the wastewater resulting from coal-seam gas (CSG) production in Australia is likely to require a precautionary approach that will demand innovation from water managers and planners, and significantly greater coordination with existing project approval processes, the National Water Commission warned in December 2010.
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.
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.
Agnihotri elected to board of ThermoEnergy Corp
Dr Dileep Agnihotri, the CEO and president of Advanced Hydro Inc, a company set up to commercialise a novel antifouling membrane coating technology at the University of Texas - Austin, has joined the board of ThermoEnergy Corp, a Massachusetts-based company engaged in development and sales of municipal and industrial wastewater-recovery and clean power-generation technologies.
Queensland legislates for centralised CSG brine disposal
The Queensland state government in Australia is introducing legislation to bring about centralised treatment and disposal of water and brine produced from the coal-seam gas (CSG) industry.
Mann+Hummel buys into membrane-maker Microdyn-Nadir
Industrial filtration group Mann+Hummel announced on 8 May 2014 that it had taken a 50% stake of the German‑based company Microdyn‑Nadir.
Wastewater reuse set for 61% growth by 2015
Market researcher, Bluefield, has forecast 61% growth in the US market for wastewater reuse in municipal utilities over the next ten years with potable reuse increasing from 15% of the total capacity to 19% by 2025.
Methane to power Queensland CSG desalination plant
A desalination plant in southwest Queensland for the burgeoning coal-seam gas (CSG) industry is to be built by a consortium of GE and Laing O'Rourke for leading Australian gas explorer and producer QGC.
IDE in talks with Hawaii desalination plant proposer
Desalination designer and builder IDE Technologies has confirmed to D&WR that it has been talking with billionaire Larry Ellison, who is proposing to build a 2.5 MGD (9,500 m³/d) seawater desalination plant on the island of Lanai.
Hawaiian venue for AMTA/SWMOA workshop
The American Membrane Technology Association and the Southwest Membrane Operator Association are to hold a joint technology transfer workshop in Hawaii.
Reclamation Bureau's water recycling and reuse funding criteria published
The US government's Bureau of Reclamation published on 15 October 2010 the funding criteria under its Title XVI - Water Recycling & Reuse Program for two new funding opportunity announcements in fiscal year 2011.
Desalitech and Veolia tie up Mexican MoU
Desalitech Inc has signed a memorandum of understanding (MoU) with Veolia Water Solutions & Technologies to bring advanced cost‑effective high‑recovery water solutions to Mexico and additional countries worldwide.
Desalitech ties up with Toyo for international market
Innovative reverse-osmosis (RO) developer Desalitech and Japan's Toyo Engineering Corporation announced on 11 December 2013 the formation of a strategic partnership to introduce water and wastewater treatment solutions to Japanese, East Asian and international markets.
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.
Ozwater '12 abstracts required before 1 September
The Australian Water Association (AWA) has issued a call for papers for Ozwater '12 to be held on 8-10 May 2012 in Sydney.
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.
Flowserve wins pumps and ERDs for Larnaca desalination
DWEER energy-recovery units and Flowserve DMX high-pressure pumps are to be supplied for the 60,000 m³/d Larnaca seawater reverse-osmosis (SWRO) desalination plant currently being rebuilt in Cyprus.
Nirosoft selects ERI PXs for Limassol desalination
The 50,000 m³/d seawater desalination plant currently under construction in Limassol, Cyprus, will use PX-260 pressure-exchangers from Energy Recovery Inc (ERI).
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.
Interview: Juan Miguel Pinto, ALADYR president
The new president of ALADYR, the Latin America desalination and water reuse association, sees his organisation as a window onto the region for international companies. His big aim is to step up events during 2018, taking knowledge of desalination and reuse out to the market.
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.
Italy opens its second largest municipal MBR plant
Italy's second largest membrane bioreactor (MBR) entered service on 17 July 2012 following the inauguration of the upgraded wastewater treatment plant in Borghetto Santo Spirito, a town on the Ligurian coast southwest of Genoa.
Wastewater leads membrane chemicals charge
Growth in the global membrane chemical market to 2020, will be led by the wastewater sector according to market analyst Future Market Insights (FMI). And desalination was expected to witness the highest compound annual growth rate (CAGR) of 11.4% in the global membrane chemicals market between 2014 and 2020.
Oil/gas sector MBR leads new H2O Innovation jobs
Supply of a membrane bioreactor (MBR) wastewater treatment and reuse system to an industrial user in the oil and gas industry in Alberta, Canada, was announced by H2 O Innovation Inc on 8 March 2012.
Hager + Elsaesser wins southeast Asia deals topping US$ 20 million
The southeast Asia arm of German water treatment firm, Hager + Elsaesser (H+E), has won contracts worth more than US$ 20 million in recent months.
United Envirotech buys Xinmin wastewater concession
Membrane treatment specialist United Envirotech Ltd (UEL) announced on 3 October 2011 that the group has exercised a call option to acquire the entire equity interest of Tongji Environmental (China) Pte Ltd, the holding company for Aton Environmental (Shenyang) Co Ltd, for RMB 34.03 million (US$ 5.34 million).
Koch MBR system chosen by Chinese city
A membrane bioreactor (MBR) using membranes supplied by Koch Membrane Systems (KMS) has been chosen for a wastewater treatment plant operated by Zhangjiagang JinGang Sewage Treatment, a state-owned entity which looks after all municipal plants for the Chinese city of Zhangjiagang.
Giti to head APTwater North American sales
Ali Giti, recently responsible for overseeing North America sales at Severn Trent has joined APTwater Inc as vice president of North American sales, the California-based supplier of water/wastewater treatment technologies announced on 6 July 2011.
Tri-Tech planning forward-osmosis pilot plants
Chinese water and wastewater treatment company Tri-Tech Holdings announced on 13 May 2011 that its current plans include constructing and operating one or more forward-osmosis (FO) pilot units using technology licensed from Arizona-based Hydration Technology Innovations (HTI).
STS Apliclor to open new Madrid office
Barcelona-based Severn Trent Services - Apliclor, a leading supplier of water and wastewater solutions in Spain, has announced a range of strategic initiatives to expand the scope and geographic range of its business.
Wastewater drive to boost membrane use in GCC region says analyst
Government identification of wastewater treatment in the municipal sector as a priority area in water production will be a key revenue generation source for membrane elements in the Gulf Cooperation Council (GCC) countries according to market analyst Frost & Sullivan. And the demand for water in the region was set to double within twenty years the analyst forecast.
Urban surge drives 57% growth in Indian municipal water treatment market by 2018
Urban population growth in India will create huge demand for municipal water and wastewater treatment systems including desalination adding 57% to revenues over five years according to a recent report by market analyst Frost an Sullivan (F&S).
Xylem supplies wastewater denitrification systems in China
Water technology company, Xylem, has supplied denitrification systems to three wastewater treatment plants in eastern China as part of a national strategy to improve wastewater treatment by 90% over five years.
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.
Interim CEO and CFO appointed to Evoqua board
The board of directors of Evoqua Water Technologies, formerly Siemens Water Technologies, has named AEA Investors LP operating partner Gary Cappeline as interim CEO, and Mark Roos, formerly of Unifrax LLC, as interim CFO.
Evoqua to be new title for Siemens Water Technologies
Evoqua Water Technologies LLC is to be the new name of Siemens Water Technologies LLC following its acquisition by AEA Investors LP.
Aquarion in tie with mining cleantech player
Ottawa-based cleantech company, BluMetric Environmental, has teamed up with Swiss water technology firm, Aquarion, in a technology, business, and project development agreement with an industrial wastewater focus.
Chinese visitors for West Basin water-reuse plant
California's West Basin Municipal Water district announced on 26 April 2013 that earlier in the month it had received a visit from a group of public and private administrators from China interested to learn about water recycling facilities and the management experiences of US enterprises in wastewater treatment.
IWA extends deadline for Toronto membrane papers
The International Water Association (IWA) has extended the deadline for submission of papers for the 7th IWA Specialised Membrane Technology Conference & Exhibition for Water & Wastewater Treatment & Reuse.
SWMOA announces dates for 2013-14
The Southwest Membrane Operator Association (SWMOA) has announced additional workshop dates for desalination and water / wastewater treatment membrane operators for 2013 and the date and venue for its 2014 annual symposium.
Chinese membrane wastewater firm gets big investment
Global investor KKR has entered into an agreement with United Envirotech Limited (UEL), a water treatment and recycling company in China, for a US$ 40 million common equity investment. KKR subscribed US$ 113.8 million convertible bonds issued by UEL in October 2011 to support the company's business expansion.
Evoqua bags municipal deals worth US$ 20 million
Water treatment firm, Evoqua, has won contracts worth more than US$ 20 million supplying its Memcor microfiltration and ultrafiltration product line to six US and Canadian municipalities. The deals were for filtration, water reuse, drinking water treatment, and reverse-osmosis pre-treatment applications.
Funding for reuse offered by Bureau of Reclamation
The US government's Bureau of Reclamation has announced a funding opportunity for feasibility studies of water reclamation and reuse for non-federal government entities, indian tribes, water districts, wastewater districts or rural water districts in the 17 western US states and Hawaii.
US DoE awards $21 million for solar desalination projects
The US Department of Energy has unveiled funding of $21 million for 14 projects to advance solar-based thermal desalination technologies.
Study starts on salinity reclamation of W Australian river
Mitigation measures such as desalination and diversion could be proposed for the Collie river basin in Western Australia as a result of an independent review of possible strategies for salinity recovery, which has just been started by consultants KPMG and Worley Parsons.
Australia's MAK Water buys Clearmake for expansion
Australian reverse-osmosis desalination manufacturer MAK Industrial Water Systems has acquired Queensland-based Clearmake Water Treatment & Recycling Solutions as part of a national expansion strategy across Australia.
GE forms salt-extraction consortium in Australia
An agreement which brings together GE, Penrice Soda Holdings Ltd, Australia's only manufacturer of soda ash and sodium bicarbonate, and Australian coal-seam gas (CSG) producer QGC Pty Ltd was announced on 24 October 2011.
Australia funds water study for coal-seam gas industry
The Australian government is spending up to Aus$ 3.88 million (US$ 3.61 million) on a water feasibility study for the Queensland coal-seam gas industry.
New contracts end H2O Innovation's year strongly
Canada's H2O Innovation Inc is to supply membrane nanofiltration (NF) water supply systems to two municipalities in Canada and expand an existing system in a third, among contracts totaling Can$ 8 million (US$ 8.25 million) announced on 6 July 2011.
Desalitech building demo plant with Layne Christensen
The originator of the Closed Circuit Desalination (CCD) technology, Desalitech Ltd, announced on 30 June 2011 that it will work with mineral and water drilling and treatment company Layne Christensen to design and build an innovative desalination system.
STW and Sunstone join to market zero discharge technology
Water management firm, STW Water Process and Technologies, has expanded its role in its exclusive agreement with Sunstone Water Group to commercialize Sunstone's patented wastewater effluent treatment technology to provide direct potable reuse (DPR) in municipal markets.
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.
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.
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.
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.
West Basin demonstrating desalination intake and outfall technologies
One of the first seawater desalination demonstration facilities to employ ocean-protection technology at the source of intake and discharge has begun construction in Southern California, USA.
Orange County issues RFP for desalination pilot-plant operation
The Municipal Water District of Orange County (MWDOC) in California, USA, issued a request for proposals on 23 October 2009 for professional engineering services for the South Orange Coastal Ocean Desalination Project - Phase 3. Deadline is 19 November 2009.
West Basin desalination demo could begin next year
Construction could begin in 2010 on the Ocean-Water Desalination Demonstration Project at Redondo Beach near Los Angeles, California, the West Basin Municipal Water District announced on 30 July 2009.
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.
Desalination plant's nitrate removal has hidden benefits
A water district in California has found a novel way to remove multiple contaminants from groundwater currently feeding a desalination plant without creating waste that requires costly treatment and disposal.
New recovery technologies can minimize concentrate volumes
Several emerging technologies show potential to enhance recovery rates during desalination of brackish water. These processes include emerging approaches for concentrate treatment and new desalination technologies. Emerging concentrate treatment technologies that aim to enhance recovery and thus minimize concentrate include physical-chemical or biological treatment of concentrate followed by further reverse-osmosis (RO) treatment; new RO methods based on softening pretreatment and pH control to result in a high-efficiency system; a new RO separator that uses vibration shear force; and seeded slurry processes combined with RO to remove scaling compounds in a controlled fashion. Some of these emerging technologies could be applied at full-scale as the primary desalting step in non-municipal applications. For municipal applications, however, these technologies would likely be most cost-competitive when used to treat the concentrate from a conventional RO system, which is being used as the primary desalting step. These emerging technologies have the potential to enhance recovery rates by about 10% or more, thus resulting in significant concentrate minimization. Additional research, both at the fundamental and applied levels, will be important and beneficial to develop, optimize, and implement practical solutions to minimize concentrate. The full article first appeared in the November/December 2008 issue of D&WR magazine
Gradiant China to target industrial ZLD and wastewater market
Gradiant Corporation has established Gradiant China to provide industrial wastewater solutions and zero liquid discharge (ZLD) technology to the Chinese market.
Adsorption pilot phase two will focus on ZLD
MEDAD Technologies, a specialist in adsorption, has worked to commercialise a multi-effect distillation adsorption desalination (MED-AD) system since spinning off from the National University of Singapore (NUS) in 2012.
US non-profit NWRI appoints Hardy as executive director
Former Encina Wastewater Authority (EWA) executive Kevin Hardy has joined the US National Water Research Institute (NWRI) as executive director.
ACWA Emirates delivers MBR reuse plant for Saudi Aramco
ACWA Emirates has completed a water reuse plant at Shaybah Oilfield, Saudi Arabia, for crude and natural gas exporter Saudi Aramco.
"We're now at more than $100 million revenue." Doug Brown, AquaVenture chairman and CEO
AquaVenture chief executive Doug Brown has a track record of delivering shareholder value. When he joined water technology and engineering firm Ionics as chief executive in 2003, the struggling business was trading at $16 a share.
Biwater to supply UF and RO systems to California replenishment project
Biwater, UK, has won a contract to design, supply and supervise ultra-filtration and reverse osmosis systems for Southern California's Groundwater Reliability Improvement Program.
Desalitech's Rick Stover: "The world's experts on desal and reuse are coming to Miami"
Desalitech executive vice president Rick Stover says that delegates can expect stimulating open forum discussions, papers and research at the IDA Energy and Environment Conference in Miami, USA, December 2016
Veolia in mineral recovery partnership at inland desalination plant
Texas-based company, Enviro Water Minerals (EWM), is to deploy its novel mineral recovery technology in a partnership with water and waste giant, Veolia, to produce potable water from brackish water desalination effluent.
Energy Recovery announces deal duo
Industrial fluid pressure technology company, Energy Recovery, has announced its second US$ 1.8 million deal in recent weeks at sites in the Middle East and North Africa region. The latest win to supply its PX Pressure Exchanger system was for a 68 Ml/d desalination plant at an undisclosed site in the Middle East. It closed an earlier, similar deal in Morocco.
Jersey contracts ACWA to upgrade desalination plant
Utility, Jersey Water, has contracted international water and wastewater treatment firm, ACWA Services, to carry a out a £6 million (US$ 9 million) upgrade of the Channel Island's La Rosière desalination plant in a bid to cut operating costs and meet rising demand.
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.
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.
Energy Recovery bags US$ 1 million in desalination orders in India and Ghana
Fluid flow energy efficiency firm Energy Recovery has won desalination orders totalling US$ 1 million for original manufacturer projects using its technology in India and Ghana. The company said the deals were among a continuing revenue stream from small-to-medium sized projects.
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.
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.
Treatment of process effluent water for reuse in food production
Effluent water reuse in the food industry raises inevitable questions about the risk and reliability of wastewater treatment and recovery processes in meeting the required standards. The author looks at how two food processing facilities adopted process water recovery and reuse shows how the benefits can be a maximized and how the challenges live among the detail. This article first appeared in the November/ December 2014 issue of Desalination & Water Reuse magazine.
Oasys forward osmosis concentrates in China
Massachusetts-based Oasys Water has claimed its recent contract to supply a forward osmosis brine concentrator to a fossil-fuelled power plant in China to be a world first.
Aquarion buys Hager + Elsaesser
Water treatment firm Aquarion Group has acquired German water technology company Hager + Elsaesser (H+E) for an undisclosed sum.
Electrochemical desalination MoU signed in Singapore
A memorandum of understanding (MoU) between Singapore's national water agency, PUB, and Evoqua Water Technologies to further develop electrochemical desalination technology was one of five MoUs signed during Singapore International Water Week, which ended on 5 June 2014.
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.
Desalitech and CH2M to pilot closed circuit tech in Orange County
Desalitech and CH2M are to supply a ReFlex Max system for a six-month pilot study to be conducted at Orange County Water District's Groundwater Replenishment System (GWRS).
ERD comparison tool developed by WateReuse project
A tool to allow engineers to evaluate commercially available energy-recovery devices (ERDs) for reverse-osmosis (RO) systems has been developed under a research project funded by the WateReuse Research Foundation.
Aquatech increases Pennsylvania oil & gas resources
Aquatech has increased its oil & gas water management services in the Marcellus and Utica Shale regions of Pennsylvania with the acquisition of Fluid Recovery Services (FRS), based in Creekside.
Speakers announced for IDA conference in Banff
Speakers and sessions for the May conference on Water Recycling and Desalination for the Oil & Gas Industry have been announced by the organizers, the International Desalination Association (IDA).
Registration open for AMTA/AWWA membrane conference
Registration has been opened and new sessions added to the programme for the 2013 Membrane Technology Conference & Exposition in San Antonio, Texas, on 25-28 February 2013.
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.
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.
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.
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.
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.
Another oil-sands evaporation contract for GE in Alberta
GE has won its fifth contract in the Alberta oil sands of Canada for use of its evaporation technologies for recycling the blowdown from once-through steam generators (OSTGs).
Cadagua orders ERI PX-Q300s for Morocco project
Spanish desalination contractor Cadagua has ordered PX‑Q300 pressure‑exchangers from Energy Recovery Inc (ERI) for the first phase of the Jorf Lasfar seawater desalination plant in Morocco.
US DOE to harness 'power of competition' in Water Security Grand Challenge
The US Department of Energy has set out ambitions to harness the "power of competition" to drive innovation in water technology through a new programme of activity.
Energy Recovery doubles up
Pressure technology firm, Energy Recovery, has won orders totalling US$ 2 million for two separate projects in France and Egypt.
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.
Desalitech closed-circuit technology set for BWRO project
Israel-based Desalitech Ltd announced on 7 April 2011 that it had been awarded a contract to design and build a reverse osmosis (RO) desalination system for Environmental Protection Technologies (EPT), a global company that leads the industrial wastewater treatment market in Israel.
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.
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.
Possibilities for energy optimisation in design and operation of SWRO plants
Seawater desalination with reverse osmosis (SWRO) has taken a noteworthy upturn during recent years. One of the reasons for the success of the membrane process is its lower energy consumption in comparison with thermal desalination processes. The high-pressure RO desalination stage is undoubtedly the dominating energy consumer of an SWRO plant. Energy consumption of SWRO, despite its energy-recovery aspects, is also influenced by a huge number of additional factors. These are both of an external nature (eg, environmental conditions and stipulations), but are also determined by design and configuration of the plant. On the basis of an SWRO plant model, which covers the different pre-treatment and RO configurations and also the design with energy consumption of potabilisation and additional wastewater treatment and sludge dewatering facilities, the specific energy consumption of an SWRO and its subsystems has been determined in this article. Considering the various aspects to be taken into account for optimization of energy consumption in seawater reverse osmosis plants and the fact that in most cases these measures are offset by increases in capital costs for equipment or possibly also in chemical consumption, optimisation of the energy consumption of SWRO plants during planning and operation is a quite extensive and complicated matter and a demanding engineering task. This article is an expanded and updated version of the article published in the August/September issue of D&WR magazine.