South Africa, Antiscalant
PWT signs three new overseas distributors
Three new distributors in Malaysia, Singapore and South Africa have been signed up by Professional Water Technologies (PWT), the business unit of Canada's H2O Innovation Inc.
Kwazulu-Natal district consults on seawater desalination
The Ugu district municipality on South Africa's KwaZulu-Natal south coast is exploring the possibility of desalination amid a "dire" water shortage.
South Africa's Cape ponders desalination as water crisis grips
The provincial government of South Africa's Western Cape is looking to water reclamation and seawater desalination as it considers its options for securing water amid a serious crisis.
South Africa looks to the sea
South Africa's Department of Water and Sanitation is considering desalinating seawater to help ease the country's water problems as it struggles amid its worst drought in more than 20 years.
Cape considers desalination as rationing looms
Cape Town, South Africa is considering investment in desalination and water reuse as part of its intensified focus on measures to conserve water amid fears that rationing is becoming more likely.
Cape Town ponders giant desalination project as resources dwindle
Cape Town, South Africa is nearing completion of its feasibility study for a 450 Ml/d desalination plant that could be built near Koeberg on South Africa's west coast within the next 10 years at a cost of some R14.9 billion (US$ 1.23 billion).
Scientists to probe outlet brine risks to sealife
Scientists have been commissioned to investigate whether brine waste from two proposed 150 Ml/d seawater reverse osmosis desalination plants could damage or alter the marine environment along the KwaZulu-Natal coastline in South Africa.
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.
South Africa to focus on desalination and water reuse
Desalination and the reuse of wastewater from municipalities and mining are strongly emphasised in the 2nd National Water Resources Strategy (NWRS2) for South Africa released at the start of July 2013.
Lamberts Bay seawater desalination goes to Veolia
A 1,700 m³/d seawater desalination plant, upgradeable to 5,000 m³/d, is to be built in Lamberts Bay in South Africa for the Cederberg Municipality by Veolia Water Solutions & Technologies South Africa.
UF plant donated to South African community
Johannesburg-based VWS Envig has donated an ultrafiltration package plant to the Eendekuil community in the Western Cape, South Africa.
MottMac buys up South African engineering firm
Johannesburg-based engineering specialist PD Naidoo & Associates has been acquired by global engineering firm Mott MacDonald.
Feasibility started for South African desalination plant
A feasibility study is underway in South Africa's Northern Cape for a 7,000 m³/d seawater desalination plant at Abraham Villiers Bay close to the town of Kotzesrus.
Mossel Bay desalination usage quandary for council
The Mossel Bay Town Council in South Africa is debating what to do with its new 15,000 m³/d seawater desalination plant because all the town's water supply dams are full.
South African desalination project comes under press fire
Water supplier for South Africa's KwaZulu-Natal province, Umgeni Water, is considering a proposal to build a seawater desalination plant on the Illovo River within the next five years to cope with growing demand in its Upper South Coast region.
Feasibility study sought for Durban desalination
Umgeni Water, a major bulk water supplier in South Africa, has issued a tender for a detailed feasibility study of a seawater desalination plant for Durban, according to a report in Business Day on 4 November 2011.
Cape Town action on desalination and water reuse
The City of Cape Town, South Africa, is planning to issue a tender for a feasibility study of a "large‐ scale" seawater desalination plant within the next month. The study will determine the most appropriate location and size for such a plant.
South African RO plant begins production
The 15,000 m³/d reverse-osmosis desalination plant for Mossel Bay, South Africa, should go into full production this week, after three weeks of commissioning.
UNEP report informs financiers about power-water relationship
The opportunities available to financial institutions to encourage the adoption of best practices, which may include the introduction of eco-friendly technologies, such as membrane technology to recycle wastewater, are stressed in a report just published by the UN Environment Programme's Finance Initiative (ENEP FI).
First indigenous UF plant to open in South Africa in May
The first large drinking water purification demonstration plant in South Africa based on locally manufactured membranes, an 800,000 L/d plant, is currently under construction for Overberg Water in the Western Cape and due to start up in May 2010.
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.
Asia and industrials to counter desalination decline
Declining drought in new desalination markets has weakened growth but a long-term counter from expansion in Asia and elsewhere creates a positive outlook for 10,000m³-plus plants according to a recent forecast by market researcher, Bluefield.
IDA to return to Dubai for World Congress 2019
The International Desalination Association (IDA) is to return to Dubai, United Arab Emirates, for its World Congress in 2019, building on the earlier success of the IDA World Congress held in the emirate in 2009.
Interview: Pedro Almagro, CEO, Abengoa Agua
As comebacks go, Abengoa's has been pretty impressive. The company that has been through a traumatic one-and-a-half years, in April 2017 wowed the industry with a massive €240 million contract win from Saudi Arabia's ACWA Power.
World Bank to help energy/water development link
The World Bank is to help developing countries to better plan and scale-up their energy demand in tandem with water resource management.
Desalination capacity increasing by 50% in 2013 says IDA
Desalination plants with a total capacity of 6 million m³/d are expected to come on line during 2013, a 50% increase on 2012, according to new data from the International Desalination Association and GWI DesalData.
Western Cape looks to desal, as Eksom issues RFP
Western Cape, South Africa, is to expedite an environmental impact assessment for a mobile desalination plant, as the area is officially declared a disaster zone due to water scarcity.
Qatar and Sweden plot renewables-fuelled desalination project
A renewables-fuelled desalination project aiming to produce water for $1/m3 is to be jointly developed by Qatar and Sweden, reports The Peninsular.
South Africa nuclear plant to install desal unit amid worsening water crisis
South Africa's electricity utility Eskom is to install a desalination unit at Koeberg Nuclear Power Station, as water shortages in Cape Town hit crisis levels, reports South Africa's News24.com.
South Africa fosters public-private co-operation on desalination
Talks on building a large scale desalination plant in Port Elizabeth, South Africa, have begun between Nelson Mandela Bay Metropolitan Municipality, beer maker SABMiller, and salt producer Marina Sea Salt, reports Construction Review Online.
Hitachi to demo integrated desalination and reuse system in South Africa
Hitachi has been selected to run a demonstration project for RemixWater, its integrated seawater desalination and water reuse system, in South Africa.
Veolia supplies RO desalination to Mauritania mine
A 1,500 m³/d reverse-osmosis (RO) brackish-water desalination plant has been supplied to a mine in Mauritania by Veolia Water Solutions & Technologies South Africa, with a heat-exchanger to cool the water.
Call for innovations in water, women and agriculture
The US, Netherlands, South Africa, and Sweden have again joined forces to offer millions of dollars to innovators who enhance food productivity by improving water efficiency in agriculture.
Namibia looks to finance four new desal plants, as row develops over price of existing supplies: reports
The Namibian government is seeking private investors to finance the development of four desalination plants on the west coast of Namibia, reports Bloomberg.
Kenya's a contender for IDA 2021 World Congress
The International Desalination Association (IDA) has shortlisted Mombasa, Kenya, among four finalists to host its 2021 World Congress, reports The Star.
Tianjin selected for 2013 IDA World Desalination Congress
Tianjin, China, is to be the venue for the 2013 World Congress on Desalination & Water Reuse to be held by the International Desalination Association (IDA).
Cape Town scraps proposal for 'extremely expensive' desalination plant
A proposal for a desalination plant in Cape Town, South Africa, has been scrapped amid claims that it is "extremely expensive" as an option to fulfil the city's water demand.
Giant S African power plant to have maximum water reuse
Maximum water reuse for what will be one of the world's largest coal-fired power plants in South Africa is to be provided by GE under a US$ 40 million contract.
South Africa declares drought a national disaster, weighs desal options
South Africa has declared a national disaster owing to the severe drought that is threatening to cease water supplies in City of Cape Town.
Western Cape food producer adopts desalination
Oceana, a canned fish producer based in Western Cape, South Africa, is installing two desalination plants in readiness for 'day zero,' in April 2018, when the region is expected to run out of water.
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.
GrahamTek wins contract for SWCC pilot project
GrahamTek of South Africa has won a contract for a desalination pilot project for Saline Water Conversion Corporation (SWCC), Saudi Arabia.
CH2M Hill hires UK engineer as water operations chief
CH2M Hill announced on 4 August 2009 that British civil engineer Neil Reynolds has joined the Denver-based firm as international operations director for the Water Business Group.
UF solution to rural water supplies?
Sub-Saharan Africa is not a region generally associated with membrane technology, but that is now changing. Desalination projects are already appearing in, for example, South Africa and Ghana, and South Africa is fast developing its own technologies. Water treatment manufacturer Ikusasa is developing its own UF modules both for rural water supply and for desalination pretreatment. The company is also developing its reverse-osmosis desalination capability and is currently looking at anodic Zn for scaling protection in treating high-calcium groundwater. This article appeared in the February-March 2010 issue of Desalination & Water Reuse.
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.
Blame game begins ahead of Cape Town's 'day zero'
Mmusi Maimane, leader of South Africa's opposition party the Democratic Alliance, has slammed the national ministry of water and sanitation for failing in its duties, pointing out the high cost of building desalination plants.
AWC in full production at new Tampa factory
American Water Chemicals (AWC) has resumed full production of its membrane water treatment chemicals following its recent move into a new 41,000 ft² (3,800 m²) building.
PWT to be represented by Omya in EMEA region
Professional Water Technologies announced on 6 September 2011 that it had signed a sales representative agreement with Omya International AG, a leading global producer of industrial minerals, and a worldwide distributor of chemical products.
BWA changes hands once more
Desalination and water treatment chemical specialist BWA Water Additives has been sold for the second time in three years for around £ 185 million (US$ 300 million).
A sustainable antiscalant for RO processes
One of the common complaints leveled at the desalination industry by environmentalists is discharges of brine from plants contain additional amounts of chemicals required to reduce scaling and biofouling. Carboxymethyl inulin (CMI) is an environmentally friendly antiscalant which has proven to be cost-effective in RO processes and therefore could have a positive contribution to addressing this concern. This article first appeared in the February/March 2011 issue of Desalination & Water Reuse magazine.
S Australia government questions Billiton desalination EIS
Desalination discharge led the list of concerns raised by the South Australia government in its submission on 24 April 2009 to BHP Billiton's environmental impact statement (EIS) related to its proposed expansion of its Olympic Dam mining operations.
Experience helps boost production and stability at Ras Abu Jarjur
Improving production with reduced expenditure could be the main targets of any desalination facility around the world. Such feats are being methodically achieved at Ras Abu Jarjur reverse-osmosis (RO) plant in Bahrain as a result of a series of improvements. Of the many available desalination techniques, RO was seen from the earliest days as a reliable and cost-effective technology and was therefore employed at Ras Abu Jarjur. From the huge quantity of groundwater (40 million m /year) extracted from borewells, potable water totalling 29 million m /year is produced. The other 30% of water is being rejected to the Arabian Gulf, which has a similar salinity level and higher temperatures. Trials are being carried out to extend the brine staging by one more stage from two to three for the ninth and tenth trains and from three to four for the first to eighth trains, as the reject water from the trains is already filtered, acidified, dosed with antiscalant and most importantly possessing the required pressure energy (minimum of 38 bar) to be used. This strategy would increase the overall water recovery by another 4.5%. By closely following the guidelines of the scaling indices, solubility product limits of potential scale-forming constituents in the water and various performance-monitoring tools, it would be possible to recover another 2% of the water. The full article first appeared in the November/December 2008 issue of D&WR magazine. The paper on which it was based was awarded the prize for Best Oral Presentation at the International Desalination Association World Congress in Maspalomas in 2007.
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.