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Desalination costs fell 60% over the past 15 years
Author：sehenstar Source：SeHenStar Pubtime：2015-03-18 09:16:39 Click：818
The southern water capital of North "thirst", but North is not sufficient to solve all problems of water shortage in North China. Is there any other way can you give to quench their thirst in North China? As the long-term development of economical, clean and sustainable means to stand out from the many options for seawater desalination. Recently, Nissan million tons, Hebei caofeidian desalination projects approved, is expected to start production in 2019 and water to Beijing, water supply more than 300 million cubic metres per year, equivalent to about 10% of Beijing's annual water supply now –
Cost: for the past 15 years 60% fall
Development of seawater desalination industry needs Government support, desalination projects should be part of the pro bono project, infrastructure funding and preferential policies supporting
Cost of desalination of sea water could enter the market is the key factor. "The last 15 years, our comprehensive cost of desalination has fallen 60%, costs decline in the future may not be as fast as before, but will continue to decline. "Research and development center of water treatment technology in Hangzhou Wang Shougen, Deputy Director of the desalination market confidence in the future.
At present, Hebei caofeidian, a daily output of 50,000 tons of projects demonstration projects have been put into operation. "From the perspective of practical operation of the project, 1 ton of water consumption is 3.2 degrees, can be included in the international advanced level. "Wang Shougen said. This kind of energy to desalinate seawater, counting depreciation of equipment and material loss, water costs about approximately 5 Yuan per ton, much higher than the 2 water prices in the South.
However, desalination of sea water to Beijing in caofeidian, need to build 270 km pipeline, cost 10 billion yuan, accounting for each ton of water costs as much as 8.
Former Deputy Director of the national water-saving, water resources expert Wu Jisong believes the seawater delivered to Tianjin, compared to Beijing, construction investment and transportation costs are much lower. "Middle route project and supply water to Beijing, Tianjin, Tianjin's water share, such as Beijing, Tianjin, seawater desalination to solve water shortage problems, economic and technologically more plausible, and desalination of sea water in jinnan water. "Wu Jisong said this programme requires coordination of Central and local compensation cost of Tianjin.
Chief Engineer of the Tianjin Institute of desalination and comprehensive utilization of Oceanography said Ruan Guoling, are hot method, seawater desalination membrane process in two ways, either way after desalinated water is weakly acidic water of PH values between 6.3 and 6.8, that water can drinking, but not mass access to urban water supply pipe network. Because most municipal pipe network is dominated by steel pipe, galvanized pipe, metal pipes, and can't handle the amount of acid in the water, you must change the acidity of desalinated water into alkaline, which increase the cost of water, while point-to-point industrial water no problem. Desalination of nearly 1 million tons at present, Nissan, 70% industrial park, solve the above water. "And now internationally, desalination of water is mainly used for municipal water supply, 61% of the total project size, desalination has become some in the water, the basic water. â€
The world mostly in desalination costs between $ 0.67 to $ 2.5 per cubic meter, the minimum can reach $ 0.5 per cubic meter; the cost of desalination is generally 5 to 8 yuan per cubic meter. Many industry experts suggested that the State should be the same as support of new energy industry development, and apply to subsidies for desalination and comprehensive policy system. Chinese Academy of engineering Academician Wang Hao admits development of seawater desalination industry needs Government support, "desalination projects should be integrated into public welfare projects, infrastructure construction funds grants and preferential policies. â€
Production: over the past 10 years increased by 30 times times
By 2030, the national water supply volume to to less than 700 billion cubic meters. Even to achieve that goal, and a project on water supply by 2030, water shortage in China's coastal areas year will reach 21.4 billion cubic meters, so must go through scientific and technological support, relying on desalination of sea water to improve water resources in coastal areas support capability
In China, the desalination of sea water from the start in 1958, after walking through technology development, industrialization phase, currently undergoing a period of industrial development and application. By the end of 2013, have been built in sea water desalination project 103, mainly located in 9 provinces and coastal North mainly dominated by large-scale seawater desalination project for industrial use, while the South is a civilian sea water desalination project, most of the island. Water desalination capacity scale from 2003 Nissan Nissan of less than 30,000 tons of development for the end of 2013 to 908,000 tons.
Such a pace looks amazing, in fact did not meet expectations. In 2013, the national about 49.5 billion cubic meters of water production, daily average 908,000 tons of seawater desalination capacity is only 0.7% per cent of total tap water production. China Water Conservancy Association said desalination Secretary General Guo Youzhi, is affected by multiple factors, the desalination industry development in our country has not been smooth, the current seawater desalination capacity and "Twelve-Five" planning a daily output of 2.2 million cubic meters of level difference.
Volume of freshwater resources per capita in China is only one-fourth the world per capita, as the focus of China's population and economic development in coastal areas, and also the most severe shortage of water resources. Under the comprehensive national water resources planning, by 2020 and 2030, the national water supply volume to control within 670 billion and 700 billion cubic metres respectively. Even if you can achieve this goal, and a project on water supply by 2030, water shortage in China's coastal areas year will reach 21.4 billion cubic meters. Therefore, we must adopt science and technology support, relying on desalination of sea water to improve water resources in coastal area of our country support capabilities.
From a world point of view, global scale desalination is also rising in recent years, by August 2013, 168 countries and regions worldwide application of desalination technologies, desalination production has more than 80 million tons by 2018, total global desalination capacity will reach 138 million t. Last year, the United States published by the Research Institute of the 2013-2018 desalination equipment market global trends and forecast report by 2018, world water desalination equipment market market value is expected to reach 15.274 billion trillion from 2013 to 2018, compound annual growth rate of 9.1%.
Goal: technology more environmentally friendly water better
Better water quality, is to enhance the public's acceptance. To improve water quality and water treatment technologies must be promoted. Seawater desalination technology and water treatment technology to the jewel of the Crown, who do the world's desalination technology "cattle", other water treatment technologies can be used
The report also showed that reverse osmosis technology is due to additional requirements for other fossil fuels, and low consumption of energy recovery devices, and also have less improvement on development of membrane materials, will become one of the most important water desalination technology. The Asia-Pacific region in the future will become a critical needs area of reverse osmosis technology.
Facts to prove this point. Desalination plant has been built in China, reverse osmosis "membrane" a total capacity of about 74%, distillation desalination of "hot" about 25% and other desalination accounted for 1%. In the current global market share of seawater desalination, "film" about 65%, the "hot" about 30%. "The performance of reverse osmosis membrane gradually to the high desalination rate and high water direction, aims to reduce the cost of desalination of sea water, and enhance the quality of dilution water. "Said Mr. Jin yan, Chinese membrane Industry Association Director.
Better water quality, is to enhance the public's acceptance. "Desalination technology and water treatment technology to the jewel of the Crown, who do the world's seawater desalination technologies ' cow ', then other water treatment technologies can be readily solved. "Ruan Guoling said. More environmentally-friendly technologies, including reducing energy consumption and reduce pollution. Energy consumption, advanced technology in 1 ton of 3 kilowatt water levels, Mr. Jin yan said: "theoretically we hope electricity to produce a ton of water, but it's not up to, this characteristic water desalination and subsequent operations related to the case. "The technology of seawater desalination and brine, retired film will cause some pollution. "A ton of water comes in, usually 50% turn left into fresh water, there are about 50% into a concentrated brine of 1 time to sea, this water has much of an impact on Ocean, experts inside or controversial. "Said Ruan Guoling, comprehensive utilization of brine could be considered, to extract the elements such as calcium and magnesium, and salt pan workers. "There are a few large desalination plants in operation in the Bohai Bay, salt works salt pan workers concentrated seawater. â€
Said Ruan Guoling, at present China's desalination single scale is scale, and international gap is large, high-end market share of domestic products is low. He suggested that domestic manufacturers to develop higher-performance films to reduce water treatment costs, develop special properties of membranes and processes to respond to different processing needs of the future, especially the demand for zero-emissions.
Cost: for the past 15 years 60% fall
Development of seawater desalination industry needs Government support, desalination projects should be part of the pro bono project, infrastructure funding and preferential policies supporting
Cost of desalination of sea water could enter the market is the key factor. "The last 15 years, our comprehensive cost of desalination has fallen 60%, costs decline in the future may not be as fast as before, but will continue to decline. "Research and development center of water treatment technology in Hangzhou Wang Shougen, Deputy Director of the desalination market confidence in the future.
At present, Hebei caofeidian, a daily output of 50,000 tons of projects demonstration projects have been put into operation. "From the perspective of practical operation of the project, 1 ton of water consumption is 3.2 degrees, can be included in the international advanced level. "Wang Shougen said. This kind of energy to desalinate seawater, counting depreciation of equipment and material loss, water costs about approximately 5 Yuan per ton, much higher than the 2 water prices in the South.
However, desalination of sea water to Beijing in caofeidian, need to build 270 km pipeline, cost 10 billion yuan, accounting for each ton of water costs as much as 8.
Former Deputy Director of the national water-saving, water resources expert Wu Jisong believes the seawater delivered to Tianjin, compared to Beijing, construction investment and transportation costs are much lower. "Middle route project and supply water to Beijing, Tianjin, Tianjin's water share, such as Beijing, Tianjin, seawater desalination to solve water shortage problems, economic and technologically more plausible, and desalination of sea water in jinnan water. "Wu Jisong said this programme requires coordination of Central and local compensation cost of Tianjin.
Chief Engineer of the Tianjin Institute of desalination and comprehensive utilization of Oceanography said Ruan Guoling, are hot method, seawater desalination membrane process in two ways, either way after desalinated water is weakly acidic water of PH values between 6.3 and 6.8, that water can drinking, but not mass access to urban water supply pipe network. Because most municipal pipe network is dominated by steel pipe, galvanized pipe, metal pipes, and can't handle the amount of acid in the water, you must change the acidity of desalinated water into alkaline, which increase the cost of water, while point-to-point industrial water no problem. Desalination of nearly 1 million tons at present, Nissan, 70% industrial park, solve the above water. "And now internationally, desalination of water is mainly used for municipal water supply, 61% of the total project size, desalination has become some in the water, the basic water. â€
The world mostly in desalination costs between $ 0.67 to $ 2.5 per cubic meter, the minimum can reach $ 0.5 per cubic meter; the cost of desalination is generally 5 to 8 yuan per cubic meter. Many industry experts suggested that the State should be the same as support of new energy industry development, and apply to subsidies for desalination and comprehensive policy system. Chinese Academy of engineering Academician Wang Hao admits development of seawater desalination industry needs Government support, "desalination projects should be integrated into public welfare projects, infrastructure construction funds grants and preferential policies. â€
Production: over the past 10 years increased by 30 times times
By 2030, the national water supply volume to to less than 700 billion cubic meters. Even to achieve that goal, and a project on water supply by 2030, water shortage in China's coastal areas year will reach 21.4 billion cubic meters, so must go through scientific and technological support, relying on desalination of sea water to improve water resources in coastal areas support capability
In China, the desalination of sea water from the start in 1958, after walking through technology development, industrialization phase, currently undergoing a period of industrial development and application. By the end of 2013, have been built in sea water desalination project 103, mainly located in 9 provinces and coastal North mainly dominated by large-scale seawater desalination project for industrial use, while the South is a civilian sea water desalination project, most of the island. Water desalination capacity scale from 2003 Nissan Nissan of less than 30,000 tons of development for the end of 2013 to 908,000 tons.
Such a pace looks amazing, in fact did not meet expectations. In 2013, the national about 49.5 billion cubic meters of water production, daily average 908,000 tons of seawater desalination capacity is only 0.7% per cent of total tap water production. China Water Conservancy Association said desalination Secretary General Guo Youzhi, is affected by multiple factors, the desalination industry development in our country has not been smooth, the current seawater desalination capacity and "Twelve-Five" planning a daily output of 2.2 million cubic meters of level difference.
Volume of freshwater resources per capita in China is only one-fourth the world per capita, as the focus of China's population and economic development in coastal areas, and also the most severe shortage of water resources. Under the comprehensive national water resources planning, by 2020 and 2030, the national water supply volume to control within 670 billion and 700 billion cubic metres respectively. Even if you can achieve this goal, and a project on water supply by 2030, water shortage in China's coastal areas year will reach 21.4 billion cubic meters. Therefore, we must adopt science and technology support, relying on desalination of sea water to improve water resources in coastal area of our country support capabilities.
From a world point of view, global scale desalination is also rising in recent years, by August 2013, 168 countries and regions worldwide application of desalination technologies, desalination production has more than 80 million tons by 2018, total global desalination capacity will reach 138 million t. Last year, the United States published by the Research Institute of the 2013-2018 desalination equipment market global trends and forecast report by 2018, world water desalination equipment market market value is expected to reach 15.274 billion trillion from 2013 to 2018, compound annual growth rate of 9.1%.
Goal: technology more environmentally friendly water better
Better water quality, is to enhance the public's acceptance. To improve water quality and water treatment technologies must be promoted. Seawater desalination technology and water treatment technology to the jewel of the Crown, who do the world's desalination technology "cattle", other water treatment technologies can be used
The report also showed that reverse osmosis technology is due to additional requirements for other fossil fuels, and low consumption of energy recovery devices, and also have less improvement on development of membrane materials, will become one of the most important water desalination technology. The Asia-Pacific region in the future will become a critical needs area of reverse osmosis technology.
Facts to prove this point. Desalination plant has been built in China, reverse osmosis "membrane" a total capacity of about 74%, distillation desalination of "hot" about 25% and other desalination accounted for 1%. In the current global market share of seawater desalination, "film" about 65%, the "hot" about 30%. "The performance of reverse osmosis membrane gradually to the high desalination rate and high water direction, aims to reduce the cost of desalination of sea water, and enhance the quality of dilution water. "Said Mr. Jin yan, Chinese membrane Industry Association Director.
Better water quality, is to enhance the public's acceptance. "Desalination technology and water treatment technology to the jewel of the Crown, who do the world's seawater desalination technologies ' cow ', then other water treatment technologies can be readily solved. "Ruan Guoling said. More environmentally-friendly technologies, including reducing energy consumption and reduce pollution. Energy consumption, advanced technology in 1 ton of 3 kilowatt water levels, Mr. Jin yan said: "theoretically we hope electricity to produce a ton of water, but it's not up to, this characteristic water desalination and subsequent operations related to the case. "The technology of seawater desalination and brine, retired film will cause some pollution. "A ton of water comes in, usually 50% turn left into fresh water, there are about 50% into a concentrated brine of 1 time to sea, this water has much of an impact on Ocean, experts inside or controversial. "Said Ruan Guoling, comprehensive utilization of brine could be considered, to extract the elements such as calcium and magnesium, and salt pan workers. "There are a few large desalination plants in operation in the Bohai Bay, salt works salt pan workers concentrated seawater. â€
Said Ruan Guoling, at present China's desalination single scale is scale, and international gap is large, high-end market share of domestic products is low. He suggested that domestic manufacturers to develop higher-performance films to reduce water treatment costs, develop special properties of membranes and processes to respond to different processing needs of the future, especially the demand for zero-emissions.
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