Reverse Osmosis, Health, Water Treatment, Safety
Nanoparticles for water and desalination - how safe are they?
The potential dangers from the use of engineered nanoparticles, such as nanotubes, metal oxides or nanodots, some of which form the basis of new solutions for desalination and water treatment, are outlined in a new European Union publication.
Desalination help published with WHO drinking water standards
The World Health Organization launched the 4th edition of its Guidelines for Drinking-Water Quality (ISBN: 978 92 4 154815 1) at the Singapore Water Week on 4 July 2011 - and also launched a separate guide for desalination.
Seprotech to acquire Canadian consulting group
Canadian membrane water treatment and reuse provider Seprotech Systems Incorporated has reached agreement to acquire 100% of WESA Group Inc, a professional services company with eight North American offices and one in El Salvador.
PPCP Toolkit developed by WateReuse foundation
The WateReuse Research Foundation (WRF) has developed a toolkit for briefing elected officials, policy makers, or the general public about the presence of trace concentrations of Pharmaceuticals and Personal Care Products (PPCPs) found 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?
Antiscalant removes need for acid in wastewater RO
Field trials of a new scale-inhibiting chemical for use with reverse-osmosis membranes in wastewater reuse plants show that, at a low dose rate, it can increase the solubility of calcium phosphate by over one hundred times, obviating the need for using dangerous and costly acid. Current design practices for large effluent reuse projects are focused on a combination of removing phosphate by precipitation prior to the RO plant and acid dosing to reduce pH to 6.0 and hence increase calcium phosphate solubility to prevent fouling. Conventional antiscalants are ineffective at high phosphate and high recovery rates, and the only other option has been to dose large quantities of acid to reduce feed pH to below 6.2. Reducing the pH from 7.5 to 6.0 on a 2,700 m /day plant would require 0.5 to 1 ton of 95% sulphuric acid per day. Handling this quantity of acid is an environmental, health, safety and logistical problem that many plant operators would like to move away from. The results from the field trials show that using a highly active threshold inhibiting antiscalant such as Genesys PHO at a low dose rate of 2 -5 mg/L can increase the solubility of calcium phosphate by over one hundred times. This article appeared in D&WR magazine's August/September 2008 issue.
AquaSure's Victorian Desalination Plant secures its first water order
The Victorian Desalination Project (VDP) is a mega-size seawater RO facility, able to produce up to 150 billion litres of water a year when running at full capacity. Located at the southerly most tip of Australia on the Bass Coast, it was procured by the Victorian State government from AquaSure, a joint venture of Degrémont (now Suez), Macquarie Capital, and Thiess (now Ventia), in 2009, for a capital cost of $3.5 billion.
November deadline for Singapore convention abstracts
A deadline of 15 November 2011 has been set for the receipt of abstracts for the Water Convention at the Singapore International Water Week (SIWW) in July 2012.
H2O Innovation lands three water/wastewater contracts
H2O Innovation Inc announced on 14 January 2014 recent contracts totalling Can$ 6.5 million (UA$ 5.93 million) in Western Canada's energy sector.
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.
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.
Minister reassures public about Sydney's desalinated water
The minister for water for the Australian state of New South Wales, Phil Costa, reassured the public on 7 November 2011 that Sydney's drinking water remains completely safe for consumption and poses absolutely no health risk.
ITT donates five RO-based treatment units to Haiti
ITT Corporation announced on 22 February 2010 that, through its partnership with Mercy Corps, the company is donating five portable water treatment systems in Haiti, providing enough potable water each day for up to 200,000 victims of the 12 January 2010 earthquake.
Brussels seeks options on how to up water reuse
A European Union (EU) public consultation on "policy options to optimise water reuse in the EU" is approaching its close as the bloc seeks to exploit a "significant potential for further development of water reuse" among member states.
Ras Al Khaimah raps nine desalination stations after extensive testing
Nine water desalination sites in Ras Al Khaimah, United Arab Emirates, have been rapped for failing water quality tests, reports Khaleej Times.
"We become part of our customers' business." Anurag Bajpayee
Gradiant's philosophy on technology is to take fundamental concepts and develop them into water technologies that speak directly to customers' experiences in the field.
US farmers look to water reuse, as reservoir level drops
Water reuse in agriculture is gaining ground in the USA as farmers and water technologists seek to overcome the domestic water supply shortages caused by drought. The latest figures from the US Bureau of Reclamation show that water levels at Lake Mead, Nevada, the largest reservoir by capacity in the USA, hit a record low of 1,074 feet in March.
High-visibility reuse demo awarded to APTwater
California-based APTwater, Inc has been awarded a contract to use its technology for a municipal water-reuse system for the City of Anaheim, California.
CH2M Hill teams with PUB in India
Consultant, CH2M HILL, in partnership with the Singapore Public Utilities Board (PUB) and Singapore Cooperation Enterprise, is providing water management services to the Rajasthan state government in India.
NSF publishes commercial/residential water-reuse standard
The first US national standard for commercial and residential onsite water-reuse treatment systems was published on 15 November 2011 by NSF International, the US-based public health and environmental organization.
EPA issues second list of endocrine disruptors
The US Environmental Protection Agency (EPA) published on 17 November 2010 a second list of chemicals for which it intends to issue test orders under the Endocrine Disruptor Screening Program (EDSP).
USEPA tightens monitoring rule for TC in drinking water
The US Environmental Protection Agency (EPA) announced on 17 June 2010 that it is proposing to revise the 1989 Total Coliform Rule to incorporate improvements recommended by a federal advisory committee.
Desalination health and environment book to be published in June
A book on the health and environmental impacts of desalination is to be published by CRC Press in collaboration with the World Health Organization on 25 June 2010.
WHO book examines calcium and magnesium in water
The desalination industry spends a lot of its time removing calcium and magnesium from water, so a book on the role and possible health benefits of these minerals should be of great interest.
Massive health grant aids Chino desalters expansion
California's Western Municipal Water District announced on 28 June 2012 that it had received a "monumental" US$ 51 million grant from the state's Department of Health towards the US$ 130 million expansion of the Chino desalination plants.
Bundamba wastewater reuse plant passes second quality test
The second Water Quality Report for the Bundamba Advanced Water Treatment Plant in Queensland, Australia, has confirmed the excellent quality of the purified water it produces and proved that the water is safe to add to the drinking supply, says government agency WaterSecure
Toray UF membranes online in North Dakota
An ultrafiltration UF system in North Dakota, USA, has become the first large municipal drinking-water system in the US to use Toray HFS-2020 UF membrane modules.
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.
NSF/JWPA developing iodine water filtration protocol
A joint protocol to evaluate the ability of certain water filtration products - such as reverse osmosis - to reduce iodine (including radioactive iodine) from drinking water currently being completed by NSF International and the Japan Water Purification Association (JWPA).
HTI deal takes forward osmosis to China
The world's only commercial manufacturer of forward-osmosis (FO) membranes, modules and systems, Hydration Technologies Innovations LLC (HTI), reached an international distribution, services and cooperation agreement for FO technology with Chinese company Tri-Tech Holding Inc.
Dow gets NF start in Saudi Arabia at Ha'il
The Dow Chemical Company has been chosen to supply water nanofiltration technology to the Ha'il nanofiltration (NF) plant by the Ministry of Water & Electricity in Saudi Arabia.
Biwater bags California reuse contract
UK water technology group Biwater has been awarded a contract to design, supply and commission all process, mechanical, electrical and control components for a planned wastewater reuse demonstration project in California, USA.
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.
Intakes opened for Adelaide desalination project
Commissioning is now closer for the Aus$ 1.824 billion (US$ 1.905 billion) Adelaide Desalination Project, after the 1.4 km intake began taking in seawater last week.
EPA funding for Arlington Desalter's biological denitrification
California's Western Municipal Water District (WMWD) confirmed on 10 February 2011 that it had secured a US$ 528,000 federal grant in January for design work on a treatment system that uses naturally occurring bacteria to remove toxic contaminants, including perchlorate and nitrate, from drinking water.
USEPA chief briefs Senate on dangerous contaminants
Perchlorate, chromium-6 and volatile organic compounds (VOCs) in drinking water were all discussed by the US Environmental Protection Agency's administrator, Lisa P Jackson, in testimony before the Senate Committee on Environment & Public Works on 2 February 2011.
Water reuse: a growing market of opportunity and challenge
Survey findings suggest a market with the technical expertise, innovative ideas, and will to service customers' water needs, while a lack of money, reluctance to take chances on new technology, and instances of poor governance present challenges.
SWCC lets systems contract for RO training room
Cyprus-incorporated Hyperion Systems Engineering announced on 16 September 2013 that it would supply a generic operator training simulator (OTS) system for the Saline Water Conversion Corporation (SWCC) in Saudi Arabia.
The Long Read: The changing EPC landscape
There is a big shift going on in the water sector, and it's exemplified by the Suez-GE deal. While the focus of services offered by engineers has always ebbed and flowed along a spectrum of consultancy, design work, systems integration, and delivery, nowadays customers' decision-making processes are pushing at the boundaries of these traditional project service offerings.
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.
Israel aids Pacific island with mobile desalinator
Israel's ministry of foreign affairs is supplying a truck-mounted desalination facility to the Marshall islands in the Pacific ocean to help tackle the islands' severe water shortage.
Desalia starts works on Egypt reverse osmosis plant
Spain's Desalia has started site works for a new, 24,000 m³/d seawater reverse osmosis plant west of Alexandria, Egypt near the city of Matrouh.
Purification plant donation may slow Sri Lankan kidney disease spread
A recently commissioned reverse osmosis water purification plant donated by water treatment company Puritas will help to curb the spread of chronic kidney disease in the North Central Province of Sri Lanka according to the plant owner. Some 400,000 people in the region are understood to be currently affected with the disease.
Sommariva secures International Desalination Association presidency
Dr Corrado Sommariva, managing director of ILF Consultants Middle East, was elected president of the International Desalination Association on 5 September 2011, the first day of the IDA's World Congress in Perth, Australia.
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.
USEPA nears decision on perchlorate water standard
The US Environmental Protection Agency (EPA) is in the process of making a final decision on whether to set a drinking water standard for perchlorate.
Berman joins D&WR/IDA online symposium team
Tom Berman, research professor emeritus of the Kinneret Limnological Laboratory, Israel, who is a leading expert on biofouling and transparent exopolymer particles (TEP) in reverse osmosis, has been added to the speakers for the International Online Symposium on Pretreatment for Seawater Reverse-Osmosis Desalination.
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.
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.
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.
IDE supplies evaporators to groundbreaking Chinese project
Bomo Environmental Engineering has purchased two evaporators from IDE Technologies as part of China's first produced water treatment plant. The facility in Karamay, Xinjian will be the first in China to operate under a Build Operate Own (BOO) model. The win marks IDE's bid to raise its profile in the oil and gas sector, the company said.
GE appoints WIBAX as Nordic water tech distributor
GE announced on 27 May 2014 that the Swedish company WIBAX Energy AB, part of the WIBAX Group, would distribute GE's water technologies in the Nordic region.
IDE sells two MVC evaporators to Alberta oil-sands site
IDE Technologies Ltd announced on 10 March 2014 that it had sold two IDE horizontal mechanical vapor compression (MVC) evaporators to increase the produced water treatment capacity of a steam-assisted gravity drainage (SAGD) production site in Northern Alberta.
SEDA announces certification school in April 2014
The Southeast Desalting Association (SEDA) has announced a membrane operator certification short school on Introduction to Membrane Systems in Florida in April 2014.
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.
Dublin desalination is one option of ten
Dublin City Council invited views on 21 November 2008 on 10 options for augmenting existing water sources for the Dublin region, including desalination of water from the Irish Sea.
Understanding microbes could increase MBR efficiency, conference told
A thorough understanding of the physiology of micro-organisms found in membrane bioreactors (MBRs) used in advanced wastewater treatment and water reuse would greatly improve the overall efficiency of these systems, a conference in Singapore was told on 23 January 2009.
High-flow cartridges provide safety filter solution for RO
In recent years, considerable progress has been achieved in membrane technology in China. It has been widely used in many fields, including seawater desalination, power plants, metallurgic, petrochemical, and municipal and wastewater reuse. This article looks at the use of safety filters for RO systems and how a high-flow filter can avoid build-up of microorganisms and consequent frequent filter change. A paper factory project provides a case study. Significant advantages including high flow-rate and long service-time help Horizon's RZ filter cartridge to occupy an important position in safety filtration for the membrane water-treatment market in China. It displays superior applicability to those large-scale and super large-scale plants operated in recent years. At the same time, RZ filter cartridges have shown fine performance when handling raw water with complicated quality or large fluctuations. Compared with regular cartridges, RZ filter cartridges provide an excellent solution to safety filtration of membrane water treatment because of their longer service life, smaller investment and lower change-out cost. This article appeared in the May/June issue of D&WR magazine.
Five Minutes With: Joe Gifford, Nanostone vice president of research and development
Joe Gifford, who is listed as an inventor on water technology patents in the US and globally, is Nanostone's new vice president of research and development
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.
'New paradigm' need for CECs, US workshop finds
The need for a new paradigm for water and wastewater treatment, which prioritizes chemicals (or chemical classes) with similar modes/mechanisms of action for further evaluation, was a principal conclusion of a workshop held in California, USA, in April 2009, the results of which have just been published.
Singapore's NEWater reused wastewater passes latest test
The reclaimed wastewater from Singapore's NEWater plants passed its 12th bi-annual drinking-water test by an independent international audit panel with flying colours during the country's Water Week.
CDA/EDS seeking Qingdao desalination abstracts by 15 March
Abstracts for the 2011 Qingdao International Desalination Conference in China (20-23 June 2011) must received by 15 March 2011 with final papers by 10 May 2011.
Q&A: Peter Nicol, CH2M global market director, on Brazil's reuse policy
Peter Nicol, global market director for CH2M, outlines how the firm is helping to develop Brazil's action plan for a national water reuse policy
Seven potable reuse study schemes win US$ 1 million funding
The WateReuse Research Foundation has approved funding for seven new direct potable reuse (DPR) research projects, valued at more than US$ 1 million.
IDE to supply desalination for Teck copper mine
IDE is to design and supply a modular desalination plant for Teck Resources' Quebrada Blanca copper mine extension project in northern Chile.
Nine projects get Reclamation feasibility funding
The Camp Pendleton desalination project in California is one of nine advanced water treatment and reuse projects in three US states selected for feasibility-study funding by the Bureau of Reclamation.
MBR plant part of new Muscat wastewater reuse program
Work has started in Muscat, Oman, on the Darsait Wastewater Treatment plant, part of the first phase of the Muttrah Water Reuse Project.
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.
Contamination security white papers released in USA
New security technologies for detecting and monitoring water supplies could be developed as a result of a contamination warning system (CWS) demonstration pilot project in the USA undertaken by CH2M Hill and the Philadelphia Water Department (PWD).
IDA issues call for papers for Portofino conference
The International Desalination Association is seeking presentations from industry and related NGOs on how the organization and the desalination community, as a whole, can be more responsive to human needs for clean and affordable potable water.
Papers invited for 2014 Singapore Week
A call for papers has been issued for the Water Convention during the Singapore International Water Week (SIWW) 2014, which will be held on 1-5 June 2014.
PWT acquired by H2O Innovation
Canadian water-treatment systems manufacturer H2O Innovation Inc announced on 28 May 2009 the acquisition of substantially all of the assets of Professional Water Technologies (PWT) in an arms' length transaction involving H2O subsidiary Membrane Systems Inc.
How we delivered Az Zour North phase one
"With hindsight we were very lucky to get everything through on time and that our construction partner Hyundai Heavy Industries was on time. Fortunately we escaped a lot of those little wrinkles that need sorting out during construction, and can drag on and on, and so we kept to time," says Andy Biffen, chief executive of project delivery vehicle Az Zour Shamal.
ZWT wins oil-camp replacement RO plant order in Libya
Three turnkey reverse-osmosis (RO) water treatment plants are to be provided by Zulal Water Technology (ZWT) for the Gialo, Waha and Essider oil camps operated in Libya by Waha Oil Company.
Arizona RO plant opens solar-energy system
A 459 kW photovoltaic (PV) solar power system has been completed at the Reverse Osmosis Water Treatment Facility for the Town of Gila Bend, Arizona, by Solon Corporation, the company announced on 13 February 2013.
Global membrane market growth nears 11%
The global membrane separation market is heading to top US$ 39 billion in 2019, at a compound annual growth rate (CAGR) of 10.8% over the period according to a recent report published by market analyst, Persistence Market Research.
Membrane technology added to Polish power plant
A third demineralization line using membrane and ion-exchange technology is to be added to the extension of the water treatment plant for the Patnów II power station in Poland.
Santa Barbara OKs US$644k desalination study funding
US city, Santa Barbara, has approved US$ 644,000 to fund studies needed before its dormant desalination plant can reopen. Without the plant the city faces a potential water supply crisis.
Boiler-feed treatment extension for Aquatech in India
Aquatech has been awarded a third contract extension to provide operating services for a boiler feed water treatment plant at Reliance Industries Limited's PTA (purified terephthalic acid) manufacturing unit in Hazira, Gujarat, India.
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.
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.
AMTA/AWWA 2015 membrane conference abstracts invited
The American Membrane Technology Association (AMTA) and the American Water Works Association have issued a call for papers for their fourth joint Membrane Technology Conference to be held in Florida in 2015.
PureSafe delivers FRWS system to Alaska
PureSafe Water Systems Inc, based in Plainview, New York, has announced delivery of a mobile First Response Water System (FRWS) to the Department of Military & Veterans Affairs of the US state of Alaska.
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.
Mann+Hummel acquire Brazilian RO/UF specialist
Brazilian membrane water treatment specialist Fluid Brasil has been taken over by Mann+Hummel, the German company announced on 9 January 2012.
New US/Canadian contracts for H2O Innovation
Canadian H2O Innovation Inc announced on 21 December 2011 that it had recently been awarded new membrane water-treatment contracts totalling Can$ 4.7 million (US$ 4.6 million).
North Port awards groundwater RO contract
The City of North Port in Florida, USA, awarded a US$ 9 million contract on 12 September 2011 for a 1.5 MGD (5,676 m³/d) reverse-osmosis (RO) groundwater treatment plant to Wharton-Smith Inc, also of Florida.
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.
Pakistan grants approval for SWRO plant in Gwadar
Pakistan has approved plans for a five million gallons a day (23,000 m3/d) seawater reverse osmosis plant in Gwadar, a port city in the southwest, reports Express Tribune.
Florida town gets 30,000 m³/d KMS RO system
An 8 MGD (30,000 m³/d) reverse-osmosis (RO) water treatment plant is to be provided for the Florida town of Davie by Koch Membrane Systems (KMS).
Aquatech buys majority stake in Indian chemical provider
Desalination and water-treatment specialist Aquatech International, based in Pennsylvania, has made a majority strategic investment in India's WEX Technologies Private Ltd, a provider of performance water-treatment chemicals and services.
SEDA to hold workshop on pretreatment for RO/NF
The Southeast Desalting Association is holding a workshop on 12 February 2014 at the Town of Jupiter Water Treatment Plant in Florida on Pretreatment for Reverse Osmosis (RO) and Nanofiltration (NF).
Sinochem setting up seawater desalination industrial base
Sinochem Corp held a ground-breaking ceremony for a seawater desalination industrial base in Hangzhou, China, on 22 March 2011, coinciding with World Water Day
US$ 8 million contracts boost for H2O Innovation
Quebec-based H2O Innovation Inc announced new contracts for desalination and water treatment systems totaling Can$ 7.8 million (US$ 8 million) on 24 March 2011.
Biwater wins RO job at Jacksonville treatment plant
Three 1 MGD (3,875 m³/d) reverse osmosis (RO) trains are to be delivered by Biwater as part of a contract in Jacksonville, North Carolina, USA, from TA Loving Company.
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.
'We're among the hardest hit by a drying climate,' Sue Murphy, Water Corporation
"The Water Corporation of Western Australia supplies water to two million people connected to the integrated water supply scheme covering our capital city, Perth, the local government area of Mandurah, parts of the South west of the state of Western Australia, and the Goldfields and Agricultural region.
Mobile BWRO system aids Greek power-station completion
Completion of a power-station water treatment project based on mobile brackish-water reverse-osmosis (BWRO) desalination systems was announced in on 3 February by Swiss-based Ecolutia Services, part of the Stulz/Hager & Elsässer group.
RO likely for Penn State treatment upgrade
Buchart Horn Inc of York, Pennsylvania, has been appointed architect for a US$ 30 million upgrade to the water treatment plant for Penn State University, probably involving advanced filtration such as reverse osmosis.