Desalination plant | |
---|---|
Daily capacity | 100 megalitres |
Cost | £250 million |
Energy usage | 14 MW |
Technology | Reverse osmosis |
Completion date | 2 June 2010 |
The Thames Gateway Water Treatment Works or Beckton Desalination Plant is a desalination plant in Beckton, London, adjacent to Beckton Sewage Treatment Works. [1] The plant takes brackish water from the River Thames and converts it into drinkable water through a reverse osmosis process. The first of its kind in the UK, it was built for Thames Water by a consortium of Interserve, Atkins Water and Acciona Agua. [2] It was opened by Prince Philip, Duke of Edinburgh, on 2 June 2010. [3] It was planned to provide up to 150 million litres of drinking water each day – enough for 900,000 Londoners. [4] [5] [6] [7] – but by 2023 had only operated on three occasions, and at two-thirds of its planned capacity.
Much of the supplied area is classed by the Environment Agency as 'seriously water stressed'. Customers in London, Swindon and Oxford see hose pipe bans during quite minor droughts. The plant is built to treat water from brackish outflows of the Tideway. Turning this into drinking water is a way to reduce such bans and postpone the risk of severe water rationing into the long term; see the Thames Water Abingdon Reservoir scheme for longer-term supply infrastructure expansion. [8] [9]
Section 37 of the Water Act 2003 repealed Section 1 of the Metropolis Water Act 1852. This move ended the ban of the Tideway as a supply of water for drinking, being "no longer required to protect public health" per Baroness Farrington of Ribbleton and Baroness Byford. [10]
Architects Broadway Malyan designed the plan to RIBA Stage D and acted as expert witness at public enquiry. [11]
The plant was planned to supply 150 million litres of water a day which caters for 400,000 households or 900,000 people in the high-demand seasons when it is most-run. Its supply is pumped to north-east London in an 8-mile (13 km) pipe which can hold 14 million litres of water, of 1.2 metre diameter. [8] The peak energy consumption of the plant is 17.6 MW in worst-case conditions, and the average power consumption was estimated at 14 MW, which results in an energy usage of 2.27 kWh per cubic metre of water produced. [12]
In 2022, Thames Water revised the usable output of the plant down to 100 megalitres per day, because of "unrealistic expectations" in the design. [7] [13]
The total cost of the scheme including the pipeline was £250 million. The route avoided much disturbance to residents. All construction sites were environmentally screened and the surrounds returned to their original condition. [8]
Thames Water had planned to build four more desalination plants, but this has not progressed. [7]
The plant takes water from the Tideway during the last three hours of ebb, storing the water in a reservoir to minimise the salinity of the water processed. The water is first treated by a conventional settlement and filtration before the salinity is removed by reverse osmosis. Mineral salts, as found in the company's conventional water sources, are added before final purification. [14]
The plant is intended to be used during times of low natural water supply and exceptional demand. The operating license dictates that the plant can only be operated if required by Thames Water's drought management plan, when the river flows at Teddington are less than 3000 megalitres per day. It can also be used in operational emergencies. [15]
In 2022, some industry sources said the plant had been effectively mothballed because of high running costs. It was not used in the very dry conditions of summer 2022 because of "necessary planned work". [7] [16] Labelled a "white elephant" by MPs, Beckton has operated just three times since it opened and can only supply two-thirds of its planned 150m litres a day. In 2023, Thames Water said difficulties sourcing the carbon dioxide needed to make the water drinkable meant it would be unavailable until July 2023. [17]
London Mayor Ken Livingstone criticised the plant in 2007, calling it a "misguided and a retrograde step in UK environmental policy." Livingstone, arguing that the plant was expensive and unnecessary, said that Thames Water should instead focus on reducing waste caused by leakage and that people should be encouraged "to use less water, not more." [18] Livingstone blocked the plans as “unnecessary and unsustainable”, but it was given approval when Boris Johnson became mayor in 2008. [7]
Desalination is a process that takes away mineral components from saline water. More generally, desalination refers to the removal of salts and minerals from a target substance, as in soil desalination, which is an issue for agriculture. Saltwater is desalinated to produce water suitable for human consumption or irrigation. The by-product of the desalination process is brine. Desalination is used on many seagoing ships and submarines. Most of the modern interest in desalination is focused on cost-effective provision of fresh water for human use. Along with recycled wastewater, it is one of the few rainfall-independent water resources.
The London sewer system is part of the water infrastructure serving London, England. The modern system was developed during the late 19th century, and as London has grown the system has been expanded. It is currently owned and operated by Thames Water and serves almost all of Greater London.
Beckton is a suburb in east London, England, located 8 miles (12.9 km) east of Charing Cross and part of the London Borough of Newham. Adjacent to the River Thames, the area consisted of unpopulated marshland known as the East Ham Levels in the parishes of Barking, East Ham, West Ham and Woolwich. The development of major industrial infrastructure in the 19th century to support the growing metropolis of London caused an increase in population with housing built in the area for workers of the Beckton Gas Works and Beckton Sewage Treatment Works. The area has a convoluted local government history and has formed part of Greater London since 1965. Between 1981 and 1995 it was within the London Docklands Development Corporation area, which caused the population to increase as new homes were built and the Docklands Light Railway was constructed.
Abbey Mills Pumping Station is a sewage pumping station in Mill Meads, East London, operated by Thames Water. The pumping station lifts sewage from the London sewerage system into the Northern Outfall Sewer and the Lee Tunnel, which both run to Beckton Sewage Treatment Works.
The Thames Tideway Tunnel is a 25 km (16 mi) combined sewer under construction, running mostly under the tidal section (estuary) of the River Thames across Inner London to capture, store and convey almost all the raw sewage and rainwater that currently overflows into the estuary. These events occur when rainfall volumes exceed the capacity of Bazalgette's and other engineers' London sewerage system. The tunnelling phase of the project was completed in April 2022.
Physical plant, mechanical plant or industrial plant refers to the necessary infrastructure used in operation and maintenance of a given facility. The operation of these facilities, or the department of an organization which does so, is called "plant operations" or facility management. Industrial plant should not be confused with "manufacturing plant" in the sense of "a factory". This is a holistic look at the architecture, design, equipment, and other peripheral systems linked with a plant required to operate or maintain it.
Thames Water Utilities Ltd, known as Thames Water, is a large private utility company responsible for the public water supply and waste water treatment in most of Greater London, Luton, the Thames Valley, Surrey, Gloucestershire, north Wiltshire, far west Kent, and some other parts of England; it has a considerable local monopoly.
Water Corporation is the principal supplier of water, wastewater and drainage services throughout the state of Western Australia. It is the seventh successive agency to deal with the services in Perth, Western Australia.
London's water supply infrastructure has developed over the centuries in line with the expansion of London.
The Victorian Desalination Plant is a water desalination plant in Dalyston, on the Bass Coast in southern Victoria, Australia. The project was announced by Premier Steve Bracks in June 2007, at the height of the millennium drought when Melbourne's water storage levels dropped to 28.4%, a drop of more than 20% from the previous year. Increased winter-spring rains after mid-2007 took water storage levels above 40%, but it was not until 2011 that storages returned to pre-2006 levels.
The Sydney Desalination Plant also known as the Kurnell Desalination Plant is a potable drinking water desalination plant that forms part of the water supply system of Greater Metropolitan Sydney. The plant is located in the Kurnell industrial estate, in Southern Sydney in the Australian state of New South Wales. The plant uses reverse osmosis filtration membranes to remove salt from seawater and is powered using renewable energy, supplied to the national power grid from the Infigen Energy–owned Capital Wind Farm located at Bungendore.
Water supply and sanitation in Israel are intricately linked to the historical development of Israel. Because rain falls only in the winter, and largely in the northern part of the country, irrigation and water engineering are considered vital to the country's economic survival and growth. Large scale projects to desalinate seawater, direct water from rivers and reservoirs in the north, make optimal use of groundwater, and reclaim flood overflow and sewage have been undertaken. Among them is the National Water Carrier, carrying water from the country's biggest freshwater lake, the Sea of Galilee, to the northern part of the Negev desert through channels, pipes and tunnels. Israel's water demand today outstrips available conventional water resources. Thus, in an average year, Israel relies for about half of its water supply on unconventional water resources, including reclaimed water and desalination. A particularly long drought in 1998–2002 had prompted the government to promote large-scale seawater desalination. In 2022, 85% of the country's drinkable water was produced through desalination of saltwater and brackish water.
The Adelaide Desalination plant (ADP), formerly known as the Port Stanvac Desalination Plant, is a sea water reverse osmosis desalination plant located in Lonsdale, South Australia which has the capacity to provide the city of Adelaide with up to 50% of its drinking water needs.
Australia is the driest habitable continent on Earth and its installed desalination capacity has been increasing. Until a few decades ago, Australia met its demands for water by drawing freshwater from dams and water catchments. As a result of the water supply crisis during the severe 1997–2009 drought, state governments began building desalination plants that purify seawater using reverse osmosis technology. Approximately one percent of the world's drinkable water originates from desalination plants.
Chennai Metropolitan Water Supply and Sewerage Board, known shortly as CMWSSB, is a statutory board of Government of Tamil Nadu which provides water supply and sewage treatment to the city of Chennai and its metropolitan region.
The Minjur Desalination Plant is a reverse osmosis, water desalination plant at Kattupalli village, a northern suburb of Chennai, India, on the coast of the Bay of Bengal that supplies water to the city of Chennai. Built on a 60-acre site, it is the largest desalination plant in India. Construction works were carried out by the Indian company IVRCL and the Spanish company Abengoa, under the direction of the Project Manager Fernando Portillo Vallés and the Construction Manager Juan Ignacio Jiménez-Velasco, who returned to Europe after the inauguration of the plant to work on renewable energy projects. Originally scheduled to be operational by January 2009, the work on the plant was delayed due to Cyclone Nisha in October 2008, which damaged a portion of the completed marine works and destroyed the cofferdam meant for the installation of transition pipes. The trial runs were completed in June 2010 and the plant was opened in July 2010. Water from the plant will be utilised chiefly for industrial purposes such as the Ennore Port and North Chennai Thermal Power Station. However, during droughts, water from the plant will be supplied to the public, serving an estimated population of 1,000,000.
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