Water. Desalination + reuse
Issue link: https://fhpublishing.uberflip.com/i/459793
BUSINESS | 10 | Desalination & Water Reuse | February-March 2015 Tunisia poised to launch desalination construction tender Tunisia's national water company, Sonede, is poised to launch a tender in May for the construction of its 150,000 m³/day desalination plant at the coastal city and industrial centre, Sfax. The project is funded by the Japanese International Cooperation Agency. State-owned Sonede's ten- year National Water Security investment programme to ensure reliable water services to urban populations in Tunisia includes some significant desalination and reuse proposals. Targets for funding include an upgrade and expansion of the Greater Tunis potable water treatment plant located at Ghdir-el-Gollah and the Belli potable water plant. The World Bank, this summer, provided a US$ 26.2 million finance package to fund upgrades to water supplies and services in the Greater Tunis area. Hyflux-led group awarded US$ 250 million seawater desalination deal in Oman A consortium led by Singaporean water and environmental solutions provider, Hyflux, has been awarded a US$ 250 million contract to design, build, own and operate an independent water project (IWP) in Qurayat in Muscat governorate, Oman. The project was awarded by government-owned Oman Power and Water Procurement (OPWP), Hyflux reported. Hyflux's consortium partners is National Power and Water Company. The Qurayat IWP involves a seawater reverse osmosis desalination plant with a design capacity of 200,000 m³/d. Under the letter of award, the consortium will need to finalise further details of the project with OPWP, and the award is contingent upon satisfying certain conditions.The project is scheduled to begin commercial operation by May 2017 under a 20-year water purchase agreement with OPWP. Hyflux's role includes turnkey engineering, procurement and construction – a contract valued at US$ 210 million – as well as operations and maintenance of the plant. Hyflux said the project was not expected to have a material financial impact on the company for the financial year ending on 31 December 2014. Xylem supplies wastewater denitrification systems in China Water technology company, Xylem, has supplied wastewater treatment denitrification systems to three wastewater treatment plants in eastern China as part of a national strategy to improve wastewater treatment by 90% over five years. Xylem's denitrification system will support the improvement of wastewater quality for some ten million inhabitants in three Eastern China provinces. Xylem's Leopold elimi-nite system, incorporating its Leopold Type S Underdrain and FilterWorx control system, is already operational at the Jingkaiqu Third wastewater treatment plant in Hefei, the capital of the Anhui province. Treating 100,000 tonnes of wastewater a day, this is one of the most important plants in the region. The Yangzhou Liuwei wastewater treatment plant in Jiangsu Province, where Xylem has also provided denitrification technology, is situated at the centre of the densely populated Yangzhou metropolitan area and plays a vital role in treating effluent from the surrounding cities. The third installation at the Jingjiang Huahui city wastewater treatment plant in the Jiangsu province is also situated in a heavily populated region. Discharge from wastewater treatment plants frequently contains high levels of nutrients that feed algae blooms. Xylem said its Leopold elimi-nite system uses a patented process control programme that deploys deep-bed, mono-media filters to remove nutrients in the wastewater. The filters break down nitrate to release nitrogen gas, leading to reduced impact on aquatic life according to Xylem. It also removes phosphorus and total suspended solids from wastewater, Xylem said. The system has been engineered for use in plants where, as in the three Chinese plants, space is limited, the manufacturer said. Xylem said the denitrification system includes a patented methanol feed system that reduces operational costs by optimising methanol dosing while maintaining effluent requirements. The installations are part of a programme involving the construction of 1,200 new municipal wastewater treatment plants and some 160,000 km of new piping. The World Health Organization has estimated that nearly 100,000 people die annually from water pollution-related illnesses in China. Saudi's Acwa lands Oman seawater desalination deal Saudi generation and desalination firm, ACWA Power Barka, has won a contract with Oman Power and Water Procurement (OPWP) to build a second seawater reverse osmosis plant in Barka, 60km from the Omani capital, Muscat. The 57,000 m³/d plant will be the Saudi firm's second phase of expansion at its Barka 1 plant. The 45,500 m³/d first addition took the Barka plant output to 136,000 m³/d when ACWA started commercial supply from it in May 2014. According to OPWP, it expected to be taking water from the second phase plant from October 2015. ACWA Power has said it will continue to negotiate an extension of the power and water purchase agreement with OPWP. It has a 15-year supply agreement with the Omani company. OPWP has calculated that water demand in the north of the sultanate will increase by 6% a year to 238 million m³ in 2013 and reaching 349 million m³ in 2020.