Zero Liquid Discharge, Fouling


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Desalitech wins zero liquid deal in China

Desalitech has won a deal to supply a high-efficiency, ultrapure water treatment system for Novelis' aluminium production facility in Changzhou, China to help comply with a regulatory requirement for zero-liquid discharge (ZLD) in applicable process wastewaters. 

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.

Aquatech wins China deal with zero liquid discharge

Industrial and infrastructure water purification technology firm, Aquatech, has won a contract to provide water treatment with zero liquid discharge (ZLD) for a coal to liquid fuels (CTL) conversion project in China.

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.

STW puts zero liquid system on show

STW Water Process and Technologies, this week will hold demonstrations in the Texas state capital, Austin, of a zero liquid discharge (ZLD) thermal water processing technology it licences from Salttech under an exclusive agreement.

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.

STW fires up Salttech reclamation demonstration in US

US water reclamation company STW Resources has started operation of a Salttech zero liquid discharge water reclamation system demonstration in Fort Stockton, Texas.

Firms form global zero liquid discharge partnership

Suez Environnement's water services division Degrémont has signed a global partnership agreement with Swiss-based evaporator and crystallizer equipment and engineering services supplier, Evatherm to develop zero liquid discharge (ZLD) projects in the power and oil and gas industries.

Malaysian desalination plant in Tianjin will be ZLD

A groundbreaking ceremony took place on 29 May 2014 for an industrial desalination project in Tianjin, China, which is claimed to be the first zero-liquid discharge seawater desalination project in the world.

GE to supply evaporator/ZLD technology for Italian oilfield

GE's advanced evaporator and zero liquid discharge (ZLD) technology is to be used to recycle up to 98% of produced water at six Total E&P Italia SpA oilwells in the Tempa Rossa field in the Basilicata region of southern Italy.

memsys and Horizon combine to reduce ZLD costs

A pilot trial is due to start in May 2014 of a method to reduce the costs of zero liquid discharge (ZLD) technology at a coal to chemical (CTX) project in northern China.

Aquatech signs for Egypt's first ZLD plant

Egypt's first integrated zero liquid discharge (ZLD) plant is to be built by Aquatech, under a contract from the Egyptian Ethylene & Derivatives Company (ETHYDCO) to provide a water treatment facility.

ZLD technology from GE for Texas powerplants

Two new Texas powerplants are to use zero liquid discharge (ZLD) wastewater treatment technology supplied by GE, the company announced on 15 January 2013.

Aquatech providing ZLD tech for Mississippi powerplant

Zero-liquid-discharge (ZLD) water and wastewater treatment facilities are to be provided by Aquatech for a 582 MW integrated-gasification combined-cycle powerplant in Kemper County, Mississippi.

Aquatech implementing ZLD for Chinese fertilizer plant

A concentrated brine treatment plant for a Chinese fertilizer is to be provided by Aquatech in the city of Ordos in the Inner Mongolia region.

ZLD wastewater pilot makes first water in Beijing

A pilot NanoClear™ zero-discharge wastewater treatment plant in Beijing has just produced its first water, according to developer Dais Analytic Corporation.

Aquatech wins Mongolian ZLD job

Aquatech has been awarded a contract for a 2,400 m³/d zero liquid discharge (ZLD) plant for a coal-to-chemicals facility in Hailer in Inner Mongolia.

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.

The QWE laboratory at Texas A&M at Qatar university.

Qatar initiative seeks sustainable water and energy

An initiative to help bring sustainability to Qatar's water and energy, which will include improved technologies for desalination, efficient reuse and zero-liquid discharge systems, was launched by Texas A&M University at Qatar on 1 February 2010.

ZLD power-station job for Aquatech

Aquatech International Corporation has announced an order from Gemma Power Systems for the Colusa Power Station in Maxwell, California, USA.

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.

Live Webinar Masterclass - Membrane Fouling Control

The first in a series of Desalination and Water Reuse Masterclass webinars will run on 12 February this year. Each event will offer practical, readily applicable guidance delivered by an expert in the topic covered.

Researchers uncover new membrane fouling mechanism

Researchers have uncovered "an additional reverse osmosis (RO) membrane fouling mechanism" arising from organic compounds present in ultrafiltration (UF) permeate during wastewater desalination.

SEDA to hold May Day membrane cleaning workshop

The Southeast Desalting Association is holding a workshop in Cape Coral, Florida, on 1 May 2014 focused on reverse osmosis (RO) membrane cleaning.

SEDA December workshop to look at chemicals for RO

The Southeast Desalting Association (SEDA) has announced a technology transfer workshop on Chemical Treatment for Reverse Osmosis (RO) to be held in Palm Bay, Florida, in December 2013.

Nearly 200 abstracts received for AMTA/AWWA conference

The American Membrane Technology Association (AMTA) says that 193 abstracts have been received for its joint conference next year with the American Water Works Association (AWWA) in San Antonio, Texas.

AWA to hold membrane fouling master class

Membrane fouling is to be the subject of a master class to be held by the Australian Water Association (AWA) in November 2012.

H2O Innovation commissions pathfinding Indian membrane plant

Canada's H2O Innovation announced on 31 January 2011 that its Indian joint venture, H2O Innovation India Ltd, had commissioned the 7,000 m³/d membrane water treatment system it had designed for Larsen & Toubro Heavy Engineering (L&T) in Gujarat state.

MIT membrane start-up completes funding round

The conclusion of an initial round of funding for Clean Membranes Inc, a start-up company based in Lexington, USA, will permit progress on development of a new generation of non-fouling membranes usable for sea and brackish water desalination.

Korean membranes chosen for Iranian process water

CSM fouling-resistant reverse-osmosis membranes, manufactured by Woongjin Chemical of South Korea, have been selected for the Fajr Phase II Project in Iran to help reduce biological fouling and scaling.

Video Q&A: Jessica Boynton, King Lee Technologies

King Lee's director of sales and marketing Jessica Boynton, discusses the hot topic of zero liquid discharge in desalination and water reuse.

The AMTA/AWWA Membrane Technology Conference 2018 opened in Florida, US, on 13 March

MTC18 hot topics are ZLD, and public outreach

The Membrane Technology Conference 2018 kicked off in Florida, US, with a panel debate on the pros and cons of membrane treatment technologies.

'Project bankability is one of the big challenges,' Miguel Angel Sanz, IDA World Congress 2017 technical program chair

Highlights to watch at IDA World Congress 2017

Technical program chair Miguel Angel Sanz introduces his highlights from the line up at IDA World Congress 2017

The adsorption pilot at a solar manufacturing facility near Riyadh focused on recovering reverse osmosis brine. Recovery rates are critical at the site, which is 100 miles inland

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.

Desalitech RO wastewater use 'will pay back in 6 months'

Desalitech, developer of the closed-circuit desalination (CCD) system, is to supply a zero liquid discharge (ZLD) advanced wastewater treatment system for a pesticide plant in Gujarat, India.

Sembcorp takes on ZLD water management plant in China

A total water management plant to support a coal-to-diesel project in Wangqiao Industrial Park, located in Changzhi city in China's Shanxi province, is to be provided by Sembcorp Industries of Singapore, the company announced on 18 October 2013.

SWMOA Stockton workshop program published

More details have been released by the Southwest Membrane Operator Association (SWMOA) about its October 2013 technology transfer workshop hosted by City of Stockton, California.

Can$ 4.7 million new orders for H2O Innovation

A 1.1 MGD (4,200 m³/d) ultrafiltration (UF) drinking water system for a community in British Columbia, Canada, is one of new contracts worth Can$ 4.7 million (US$ 4.6 million) announced on 6 June 2013 by H2O Innovation Inc.

The Aquatech process

Aquatech prepares membrane-thermal ZLD for Columbia gold mine

The new hybrid membrane-thermal system is to be installed in April and commissioning is expected to be completed by Q4 2019.

Modern Water's pilot plant was housed in a 20-foot container

Modern Water signs first brine concentration deal after pilot

Modern Water has secured the first sale of its proprietary All-Membrane Brine Concentration (AMBC) technology, to a textile dyes company in India.

Chinese website and new director for Modern Water

UK forward-osmosis specialist Modern Water plc has recently appointed William Harvey as its director of strategy and new business development for its Membrane Processes division as well as its electrocoagulation products.

Agreement signed for memsys MD use in sugar industry

Memsys of Singapore/Germany has signed an exclusive global agreement with Concord Enviro of India for use of its membrane distillation (MD) system to treat molasses wastewater from the sugar industry.

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.

The new desalination plant at Tianjin will be the first zero liquid discharge facility in China

Xianda signs BOO deal for desal plant in Tianjin, China

An operating agreement for a proposed desalination plant at Tianjin, the largest port city in northern China, was signed on November 8, 2016, by Xianda Seawater Resources Company of Malaysia, and Tianjin Administrative Commission.

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.

Tri-Tech to aid ZLD status for Mexican steelworks

Beijing based Tri-Tech Holdings announced on 27 March 2012 the award of a contract to provide a preconcentrator mechanical vapour compression (MVC) evaporator system and final MVC concentrator for a Mexican steel plant.

GE-Osmoflo alliance creates powerful Australian presence

A strategic alliance giving Australian desalination and water recycling company Osmoflo access to products produced by water and process giant GE was unveiled at the International Desalination Association World Congress in Perth, Australia, on 6 September 2011.

ZLD wastewater equipment for new California power plant

The Russell City Energy Center (RCEC), a new 600 MW natural gas and steam combined-cycle power plant being built in Alameda County, California, will have GE zero liquid discharge (ZLD) wastewater recycling technology.



GE’s zero liquid discharge technology aims to achieve 99 per cent wastewater reuse at Zhuozhou Jingyuan power plant

GE supports water reuse at new power plant in ZhuoZhou City, China

GE has signed a deal to supply water reuse technology to a new coal-fired power plant, Zhuozhou Jingyuan, in Hebei province, China, to help the plant meet new, tougher standards on water pollution.

Darco and Aquaporin in zero discharge tie up

Darco Water Technologies has signed a deal with Aquaporin Asia to pilot and testbed zero liquid discharge systems for industrial wastewater treatment under Aquaporin's three-year forward osmosis project.

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.

Aquatech unveils Dutch subsidiary

Aquatech, US provider of desalination, water reuse and zero-liquid discharge (ZLD) sytems, announced on 15 April 2010 the establishment of Aquatech BV, a fully owned subsidiary in Leiden, the Netherlands.

Swcc and Hyrec sign MOU to use Hyrec's concentration technology at SWCC plants

Saudi Arabia's Saline Water Conversion Corporation (SWCC) and Hyrec Technologies Ltd. have signed a Memorandum of Understanding to deploy Hyrec's Osmotically Assisted Reverse Osmosis (OARO) technology for Zero Liquid Discharge desalination in the Kingdom of Saudi Arabia.

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.

India's waterways became increasingly polluted as industrial growth outpaced regulation

Gradiant wins industrial ZLD contracts in India

Gradiant India has won four zero liquid discharge projects with industrial clients in India.

The water supplied will be used for agriculture and hydroelectric applications in Beit She’an valley, Israel

IDE wins brackish water desal plant contract in Israel

IDE Technologies has won a project to build and operate a brackish water reverse osmosis (BWRO) plant in Emek Hamainot, Israel.

Video Q&A: Ronit Erlitzki, AdEdge Water Technologies

AdEdge Water Technologies' director of business development Ronit Erlitzki, presents a new technology that uses flow reversal to minimise membrane fouling.

Video Q&A: Doug Eisberg, Avista Technologies

Avista Technologies' director of business development Doug Eisberg, explains how new applications of membranes in water reuse systems are bringing fresh challenges.

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.

The new manual, Harmful Algal Blooms and Desalination: A Guide to Impacts, Monitoring, and Management, synthesizes knowledge from multiple case studies

First guide to harmful algal blooms launches at IDA World Congress 2017

UNESCO Intergovernmental Oceanographic Commission (IOC) and Middle East Desalination Research Centre (MEDRC) introduced the world's first guide to harmful algal blooms (HABs) on Tuesday 17 October 2017, at IDA World Congress.

'I am halfway between the lab and the boardroom on this,' Tim Harper, CEO, G2O Water Technologies

Q&A: Tim Harper, G20 Water Technologies

Former European Space Agency scientist Tim Harper, now chief executive of G2O Water Technologies, talks graphene-coated membranes

Hydranautics' new CPA7-LD membrane is designed to produce low permeate TDS make-up water for power stations, and the semi-conductor and pharmaceutical industries.

Hydranautics introduces two new spiral wound RO membranes

Hydranautics has brought out two new spiral wound reverse osmosis membranes for demanding industrial and municipal applications.

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.

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.

Evoqua lands five deals totalling US$ 20 million for its clarification system

In deals totalling more than US$ 20 million, five US municipalities have ordered Evoqua Water Technologies' BioMag ballasted biological treatment system for their wastewater treatment plants.

Conwed in feed spacer study

Plastic netting maker, Conwed, has provided its products for a study into options for developing and testing of feed spacers in reverse osmosis (RO) by numerical modelling, three- dimensional (3D) printing of feed spacers and experimental membrane fouling simulator studies.

Dow project seeks to promote reuse

Dow Water & Process Solutions, is participating in one of ten European Commission-funded projects that aim to stimulate innovation and improve cohesion in Europe's water reuse sector.

H₂O Innovation bags Clearlogx

Membrane filtration company, H₂O Innovation, as acquired all of the assets of control technology specialist, Clearlogx, that relate to its control technology and its specialty coagulants.

IDA 2015 World Congress draws 1,700 delegates

More than 1,700 delegates from 63 countries attended the International Desalination Association's (IDA's) 2015 World Congress held in San Diego recently according to the association's key metrics published this week. Awards for papers and presentations topped US$ 30,000.

Masterclass webinar to look at combining reuse and desalination using forward osmosis

Award-winning researcher, Gaetan Bandin, will present the next Desalination and Water Reuse Masterclass Webinar on 30 June looking at opportunities and challenges for forward osmosis and pressure assisted osmosis (PAO) to combine water reuse and desalination.

Singapore's PUB draws curtain on algae

Singapore's national water agency PUB has for the first time installed silt curtains at the waters off Tuaspring and Singspring desalination plants, to protect them from damaging fouling of their reverse osmosis membranes by mounting levels of algae in the water.

Giant solar desalination project plans US$ 10 million public offering

Shares in what would be California's first commercial-scale solar desalination plant issued by WaterFX will this year form a US$ 10 million state-registered direct public offering (DPO) in the state.

A grand conference is AMTA/ AWWA's fourth

One thousand attendees turned up at Orlando, Florida for the fourth Membrane Technology Conference (MTC) hosted jointly by the American Water Works Association (AWWA) and American Membrane Technology Association (AMTA) last week.

AMTA NEWS Novel sub-nanofiltration ceramic membrane production uses DNA

A novel method for creating ceramic reverse osmosis membranes with sub-nanometre pores by using the genetic material, DNA, as a template former, overcomes the poor reproducibility encountered in conventional methods according to the developer of the technology, Cerahelix.

Microbubble membrane cleaning stems fouling

In spring 2014 we published an article on how Genesys developed its microbubble-based membrane cleaning system. In this follow up Genesys presents results from a case study of the technology in a wastewater reverse osmosis plant. This article first appeared in the February 2015 issue of Desalination & Water Reuse magazine.

Kuwait plant to get GE membranes

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

Foxconn's new zero liquid discharge (ZLD) installation in Wisconsin, US, will significantly reduce water intake from Lake Michigan

Foxconn invests $30 million in ZLD to reduce intake from Lake Michigan, US

Taiwanese technology firm Foxconn is investing $30 million in a zero liquid discharge (ZLD) water reuse system at Wisconn Valley Science and Technology Park, Wisconsin, US.

Membrane market growth to run until 2020

The fruits of growing research and development in forward osmosis for desalination are highlighted in a recent sector report as drivers of growth in the market for membrane separation technologies running to at least 2020.

Solar desalination plant to serve California's Central Valley

Solar desalinatetion specialist, HydroRevolution, is raising funding to construct a solar-powered multi-effect distillation desalination plant in the Panoche Water and Drainage District in the Central Valley.

Researchers share industry prize for fouling research

Doctoral students, Ariel Atkinson of the University of North Carolina at Chapel Hill and Erin Partlan of Clemson University, have received the 2014 Fellowship for Membrane Technology award from the American Membrane Technology Association (AMTA) and the National Water Research Institute (NWRI) for research in membrane fouling.

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.

Researchers cast doubt on economics of osmotic power

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

Figure 1: Fabric in hollow fine fibre permeator of Du Pont Permasep

Why MFI is edging SDI as a fouling index

PARTICULATE FOULING has plagued reverse osmosis (RO) systems since their first use in desalination and remains a persistent issue today for RO and other pressure-driven systems such as microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF). In the early 1960s, the Du Pont company/Permasep Product successfully launched the hollow-fine-fibre (HFF) permeator onto the desalination market, where it dominated for several decades. A well-known weakness of this permeator was its vulnerability to fouling. Initially, this vulnerability was attributed to suspended and colloidal matter in the feed water, ie, particulate fouling. Therefore, Du Pont developed, the Silt Density Index (SDI), initially named the Fouling Index, as a parameter to characterize the fouling potential of the feedwater for permeators. The fouling mechanism turned out to be more complicated than just fouling of the membrane surface as initially assumed. Gradually it became clear that the fouling was initiated by local clogging of the woven or non-woven fabric between the fibres, which is needed to ensure equal flow distribution of the feed water (see Figure 1). This article first appeared in the issue of Desalination & Water Reuse magazine.

Oasys furthers advance in China

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

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.

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.

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.

Water Planet to use 3M polymer in membrane manufacture

Water Planet Engineering (WPE), a spinoff company from the University of California, Los Angeles (UCLA), has entered into a joint development agreement with global company 3M to explore commercial production of a new polymer material with widespread industrial application.

EDS launches 2014 desalination courses with Rome event

The European Desalination Society (EDS) kicks off a list of six events in its series of Master Courses with a three-day course in Rome, Italy, on Membrane Technology, Process & System Design on 3‑5 March 2014.

2014 Oman conference to look at HABs and desalination

An international conference on Harmful Algal Blooms (HABs) & Desalination is to be held in Muscat, Oman, in April 2014.

Texas treatment company spins off frac water firm

A company called Green Hydro LLC has been spun off by Texas-based Advanced Hydro Inc to use desalination to address increasing demand for water use in hydraulic fracturing.

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.

Woongjin backs Californian FO membrane‑maker

Korean membrane company Woongjin Chemical Company has signed an agreement with California startup Porifera Inc providing investment for the Silicon Valley company to develop, manufacture and commercialize forward osmosis (FO) membranes at high volume.

IDE/Clean Harbours tie-up aims at oil sands clean-up

Desalination designer and constructor IDE Technologies Ltd and US waste and wastewater specialist Clean Harbors today announced a joint research and development (R&D) program to increase the availability and reliability of mechanical vapor compression (MVC) evaporators for treating oil sands produced water in Alberta, Canada.

North Sea gas RO package supplied by UK company

A containerised reverse‑osmosis (RO) desalination package is to be supplied for an unmanned gas platform in the North Sea by Salt Separation Services of Rochdale, UK.

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.

EDS lists desalination courses for 2013

The European Desalination Society (EDS) has released a complete list of its courses for 2013. EDS has been giving training certificates since 2003 to over 400 participants from all over the world.

Four workshops to precede AMTA / AWWA conference

There are now four preconference workshops prior to the Membrane Technology Conference & Exposition being held by the American Membrane Technology Association (AMTA) and the American Water Works Association (AWWA) in San Antonio, Texas, at the end of February 2013.

SCMA launching membrane operator certification

The South Central Membrane Association (SCMA) is kicking off a membrane operators certification program in January 2013 featuring the first of four modules being developed by the Southeast Desalting Association (SEDA) with SCMA and other affiliates of the American Membrane Technology Association (AMTA).

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.


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