Canada, Wastewater Reuse, Seawater, Water Treatment, Middle East, Safety


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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.

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.

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.

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).

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.

Israel/Canada pact to promote wastewater reuse

Israel and Canada are to work together on wastewater reuse following a ministerial meeting on 9 December 2012 in Jerusalem.

USBF/MBR system allows Canadian wastewater reuse

A wastewater treatment plant (WWTP) expansion featuring an upward sludge blanket filter (USBF) combined with a membrane bioreactor (MBR) has been completed at Snug Cove on Bowen Island in British Columbia, Canada.

H2O Innovation opens Toronto area office

Membrane treatment supplier H2O Innovation Inc announced on 23 January 2013 that it had recently opened a new office in Burlington, Ontario, part of the Greater Toronto Area in Canada.

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.

Saltworks test rig with evaporation pond surrounded by windbreak.

Canadian low-energy desalination gets government boost

Saltworks Techologies Inc's low-energy desalination project is to receive up to Can$ 580,000 (US$ 577,000) from the Canadian government via Sustainable Development Technology Canada (SDTC).

Reilly appointed H20 Innovation's sales manager in BC

Kevin Reilly, formerly sewage control manager for Capital Regional District, Victoria, Canada, has been appointed regional sales manager - British Columbia (BC), by H20 Innovation, the desalination and water treatment system supplier.

Christ desalination contracts still hitting Ovivo figures

Desalination contracts had a significant unfavourable effect on consolidated results for Canada's GLV Inc in the first quarter of fiscal 2012 and the last quarter of fiscal 2011.

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.

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).

Canadian municipalities buy nanofiltration systems

Nanofiltration drinking water production systems are to be supplied to two Canadian municipalities, Waterville and Eastman in Quebec, by H2O Innovation.

Oil sands UF water treatment won by H2O Innovation

A Can$ 9.4 million (US$ 9.6 million) contract for a membrane-based water treatment package has been awarded to H2O Innovation Inc by Fort Hills Energy LP for the Fort Hills Oil Sands Project in Alberta, Canada.

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.

H2O Innovation supplies US city with UF, NF and RO

The City of Delaware in Ohio, USA, has awarded a contract to Canada's H2O Innovation Inc for a drinking-water production system involving ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO).

Christ boards recommend takeover acceptance

The management and supervisory boards of Austria's Christ Water Technology AG recommended on 23 October 2009 that shareholders accept the offer of takeover from GLV Inc of Quebec, Canada, following an extensive evaluation of the offer document and all individual arguments.

New hybrid membranes chosen for Victor Valley MBRs

The Victor Valley Wastewater Reclamation Authority (VVWRA), on the edge of the Mojave desert in California, has selected FibrePlate™ hybrid-membrane™ technology manufactured by Fibracast Inc for two sub-regional membrane bioreactor (MBR) facilities.

Aquatech sells produced-water evaporators in Alberta

Aquatech is to design, engineer, supply and supervise installation and commissioning of a produced-water evaporator system for Pengrowth Energy Corporation's Lindbergh 12,500 bpd Steam Assisted Gravity Drainage (SAGD) enhanced oil-recovery facility.

GE evaporators chosen for Alberta bitumen project

MEG Energy Corp has selected GE evaporation technology for reusing steam generator water for boiler feed in a bitumen extraction project in Alberta, Canada.

Five newcomers voted onto IDA board

Five new faces are among the 21 members voted to serve on the board of the International Desalination Association (IDA) for 2011-13 as a result of the elections which closed on 13 August 2011.

Giant Canadian potash project buys Veolia evaporator

Evaporation and crystallization equipment from Veolia Water Solutions & Technologies has been bought by K+S Potash of Canada to constitute the core process for a potash project in Saskatchewan, Canada.

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).

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.

Pilot vapour-recompression plant tackles oil and gas water

A pilot project to treat produced water from oil and gas operations in southern Saskatchewan, Canada, has been initiated by Purestream Technology of Salt Lake City, USA, using its advanced vapour recompression (AVARA) system.

Acciona Agua commissions Fouka desalination in Algeria

The commissioning of the Fouka seawater desalination plant in Algeria, which reached full operational capacity in July, was announced by Acciona Agua on 8 August 2011.

The Global Water Awards winners are awarded through voting by industry professionals

Suez and Middle East plants top 2018 Global Water Awards

Suez has scooped the Desalination Company of the Year Award, and Middle East facilities topped the desal plant categories at this year's Global Water Awards from Global Water Intelligence (GWI).

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.

Canada's largest MBR plant will have GE membranes

A 36,000 m³/d expanded membrane bioreactor will be at the heart of an upgraded wastewater treatment plant for the city of Brandon in Manitoba, Canada.

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.

Opening of Woongjin's new American HQ.

Woongjin opens all-Americas headquarters and factory

A new American headquarters and membrane manufacturing facility was opened on 5 April 2011 in Anaheim, California, by Woongjin Chemical America Inc, manufacturer of CSM reverse-osmosis and nanofiltration membranes for desalination and water treatment.

H2O Innovation wins Canadian and US contracts

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

New members on H2O Innovation board

Shareholders of membrane-system provider H2O Innovation Inc elected two new directors to the board at the company's annual general meeting at its headquarters in Quebec City, Canada, on 12 November 2013.

Canadians win RO contract in Peru

Canada's BluMetric Environmental Inc has been awarded a US$ 1.38 million contract to supply a reverse osmosis (RO) system to deliver high-quality process water at a new facility for a large diversified industrial chemicals producer in Peru.

H20 wins UF and RO contracts in Canada and US

A contract to augment the capacity of the existing reverse osmosis system of the City of Las Animas, Colorado, is one of a number of recent contracts won by H2O Innovation Inc totalling Can$ 2.7 million (US$ 2.4 million).

Largest order for H20 Innovation

Six membrane water filtration units with a combined treatment capacity of 3,960 m³/d have been ordered from Canadian treatment supplier H2O Innovation (2000) Inc by Petro-Canada Oil Sands Inc on behalf of Fort Hills Energy LP.

H2O Innovation to buy Piedmont Pacific

Canada's H2O Innovation Inc announced on 25 November 2013 the signing of an agreement to purchase all of the issued and outstanding common stock shares of Piedmont Pacific Corporation, the Oakland-based flexible pipe couplings manufacturer, for a total consideration of approximately Can$ 4.0 million (US$ 3.8 million).

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.

Sonitec-Vortisand appoints MENA manager

Canada-based Sonitec-Vortisand has appointed Nikhil Bhatia, as regional manager for its newly formed subsidiary, Sonitec-Vortisand Middle East and North Africa (MENA).

Arizona panel makes water-reuse recommendations

More than 60 recommendations including many on wastewater reuse have been forwarded to the governor of the US state of Arizona by a "Blue Ribbon" panel formed by the governor, Jan Brewer, in 2009.

Norit to supply largest UF wastewater reuse plant

Keppel Seghers has ordered Norit XIGA™ ultrafiltration (UF) membrane technology for the Doha North Sewage Works wastewater reuse project in Qatar, supplier Norit X-Flow announced on 24 April 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.

Aquatech evaporator tech selected for Alberta oilsands

Aquatech of the USA has been awarded a contract to provide Japan Canada Oil Sands Ltd (JACOS) its evaporator technology for the Hangingstone Expansion Project in Alberta, Canada.

Neptune Benson buys Sonitec Vortisand

Engineering firm Neptune Benson, has bought Canada-based water filtration company, Sonitec Vortisand, for an undisclosed sum.

Veolia installing evaporator in Alberta oil sands

Veolia Water Solutions & Technologies is currently installing an evaporator/crystallizer system at Southern Pacific Resource Corp's STP-McKay project currently under way in northern Alberta, Canada.

H2O Innovation completes Piedmont Pacific purchase

Canada's H2O Innovation Inc announced on 5 December 2013 completion of the previously announced acquisition of all of the issued and outstanding common stock shares of Piedmont Pacific Corporation of Oakland, California, for a total consideration of approximately Can$ 4.0 million (US$ 3.8 million).

New contracts announced by H2O Innovation

A 150,000 GPD (568 m³/d) membrane wastewater treatment system for a First Nation community in Manitoba, Canada, is one of new contracts totaling US$ 2.4 million announced on 12 January 2011 by H2O Innovation.

Qatar MED/TC desalination plant goes to Tri-Tech

A 5,760 m³/d multiple-effect distillation thermocompression desalination plant is to be provided for a petrochemical plant in Qatar by Tri-Tech Holding Inc.

GE wins oilsands evaporator contract in Alberta

GE's water evaporation technology will treat de-oiled produced water, boiler and heat-recovery steam-generator blowdown and brackish makeup water for Sunshine Oilsands at its West Ells project in Ft McMurray, Alberta, Canada.

Bitumen producer using GE evaporation technology

GE's produced-water evaporation technology has been chosen for Phase 1 of the Algar Lake Steam-Assisted Gravity Drainage (SAGD) project near Fort McMurray, Alberta, Canada, which will produce 5,000-6,000 barrels/d of bitumen.

Canada/Norway study of pretreatment for osmotic power

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

H2O Innovation picks up contract trio to boost order book

Canada-based H2O Innovation has won two new contracts in Canada and one new deal in the US.

H2O Innovation updates Piedmont Pacific acquisition

Its recent acquisition of Piedmont Pacific means that Canada's H2O Innovation Inc is now supplying flexible pipe couplings to some of the largest desalination plants under construction in the world.

Modern Water claims first FO commercial desalination contract

UK-based Modern Water has won what is believed to be the first ever forward-osmosis (FO) commercial contract for desalination, following its award of a UK£ 500,000 (US$ 810,000) contract for a 200 m³/d plant by Oman's Public Authority for Electricity & Water (PAEW).

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.

AMTA schedules workshops up to 2016 conference

The American Membrane Technology Association (AMTA) has published a list of workshops and conferences up to and including its 2016 Membrane Technology Conference, which will be held with the American Water Works Association (AWWA) in San Antonio, Texas, on 1‑5 February 2016.

The formation of a new, market-leading, industrial-focused water business is changing the dynamics of the global industrial water market

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.

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.

Seprotech appoints new CEO and president

Ottawa-based Seprotech Systems Inc, developer of CrystalBlue™ membrane-based water recycling systems, announced a new chairman and CEO on 27 January 2011,

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.

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.

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.

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.

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.

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).

KMS signs distributor for Italy

Koch Membranes Systems (KMS) announced on 17 June 2011 that it had signed a distribution agreement for Italy with Univar Inc, a US global chemical distributor.

Fernandez to boost ACWA's PPP push in MENA

Leading Spanish economist Luis Fernandez has joined environmental solutions provider ACWA Emirates as chief officer concessions for the Middle East/North Africa (MENA) region to provide in-depth support for the company's drive into the public-private partnership (PPP) sector.

Brian O'Neill

Seven Seas appoints Lazard advisor to board

Desalination and advanced water treatment company Seven Seas Water announced on 27 June 2013 the appointment to its board of a former US Treasury deputy assistant secretary, Western Hemisphere.

AWWA hosting low-pressure membrane webcast

Implementing Low-Pressure Membrane Plants - The Utility Perspective is the title of a webcast to be hosted by the American Water Works Association next Wednesday, 11 August 2010. The webcast will review critical steps in membrane plant design, pre-procurement and construction.

H2O Innovation lands San Jose WTP ultrafiltration contract

A 30 MGD (113,562 m³/d) hollow-fiber ultrafiltration (UF) membrane water treatment system in California is one of three new contracts totaling Can$ 8.8 million (US$ 8.1 million) announced on 21 May 2014 by H2O Innovation.

Clairet promoted by H2O Innovation

Guillaume Clairet has been promoted by membrane water-treatment company H2O Innovation Inc to the newly created position of vice president, strategic business development.

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.

Southern California gets wastewater reuse and desalination grants

Southern California's Joint Water Purification Pilot Program (JWPPP), which will evaluate the feasibility of wastewater reuse using advanced water treatment, has received a US$ 334,000 grant from the US Bureau of Reclamation's WaterSMART program.

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.

 L to R: Heiner Markhoff, GE Water CEO and president, Dr Tony Yan, chairman, National Research Foundation of Singapore, Prof Dr Chorh Chuan, president, NUS.

New Singapore center will develop desalination/reuse solutions

GE and the National University of Singapore (NUS) are investing US$ 100 million in the Singapore Water Technology Center, which will seek new solutions for low-energy seawater desalination, water reclamation and more efficient water reuse.

H20 Innovation opens Indian manufacturing plant

Canada's H2O Innovation Inc announced on 6 April 2011 the opening of a 10,000 ft² (929 m²) manufacturing plant for its Indian joint-venture H2O Innovation India Ltd near Vadodara, Gujarat.

Philippe Gervais appointed chairman of H2O Innovation

Canadian membrane water treatment specialist H2O Innovation Inc announced on 30 June 2009 that Guy Goulet was stepping down as chairman and ceasing to be a director of the company.

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.

Hyflux forecasts end to Middle East desalination doldrums

Following its recent landing of its first major Middle Eastern municipal water contract in five years,  Singapore water treatment firm Hyflux said it anticipated demand in the region to accelerate.

RO plant commissioned for US military base

A reverse-osmosis (RO) drinking-water plant supplied by ThermoEnergy Corporation to a major US military base at an undisclosed location in the Africa/Middle East region was commissioned in early December 2011.

H2O Innovation raises more capital investment

H2O Innovation Inc announced on 30 September 2013 that it had completed a non-brokered private placement of approximately Can$ 1.978 million (US$ 1.915 million) with a group of private investors and shares for debts for an amount of approximately Can$ 157,000 (US$ 152,000).

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.

BP bags stake in Saltworks

Oil and gas giant, BP, has taken a stake in Canadian water treatment company, Saltworks Technologies, through its technology investment arm BP Ventures.

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.

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.

The deal is 'win-win' for WorleyParsons and Jacobs, said Jacobs' chief executive Steve Demetriou

WorleyParsons acquires Jacobs' energy, chemicals, and resources division

Australia's WorleyParsons is purchasing the energy, chemicals, and resources (ECR) division of Jacobs in the US for $3.3 billion, comprising $2.6 billion in cash and 58.2 million WorleyParsons shares.

Ovivo to be 'selective' about desalination projects

Releasing its fourth quarter financial results on 9 June 2011, Canadian water/pulp and paper group GLV Inc reported progress in its Ovivo water treatment group, formed when the company took over Christ Water Technology AG in 2009, but expressed reservations about its desalination operations.

Australia urged to recycle more water for urban supplies

Greater use of recycled water in Australia's water supplies was called for on 29 November 2010 by James Cameron, acting CEO of the National Water Commission (NWC).

Imad Makhzoumi, new IDA president

Makhzoumi elected IDA president for 2009-11

The International Desalination Association (IDA) announced on 12 November 2009 that Imad Makhzoumi had been elected its new president for 2009-2011.

IDE plans layoffs as it switches focus overseas

Israeli desalination company, IDE Technologies, plans layoffs in its domestic operations and a greater focus on international markets.

Aquatech awarded a 10,000 m³/d MED plant in Egypt

Aquatech is to design and supply a multiple-effect distillation (MED) seawater desalination system for the Abu Qir Thermal Power Plant near Alexandria, Egypt.

The new research paper synthesises data to create a world map of brine production

UN urges desalination industry to improve on brine

The United Nations has called on the desalination industry to clean up its act on brine as the number of desalination plants worldwide continues to climb.

Sulzer's acquisition of JWC Environmental assumes an enterprise value of $215 million

Sulzer to acquire JWC Environmental

Sulzer is to acquire JWC Environmental, a leading supplier of municipal and industrial wastewater equipment.

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.

New distributors and EU compliance for PWT

Membrane chemicals supplier Professional Water Technologies (PWT), the US arm of Canada's H2O Innovation, recently signed agreements with two new distributors in Brazil and Argentina, increasing its presence in South America.

GE reasserts policy proposals for water reuse

Engineering giant, GE, has again urged policymakers to consider four major policy options for water recycling and reuse first unveiled at Water Arabia 2015 in February this year.

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.

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.


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