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Desalination costing - an art, not a science

机译：海水淡化成本计算-艺术而非科学

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Two of the world's most publicized desalination projects have once again demonstrated that while agreements may be made concerning the price of water to be delivered from a plant, calculating the true cost of actually producing that water remains an arcane art. At the formal opening of Israel's new plant at Ashkelon -billed as the largest reverse osmosis desalination plant in the world - the cost of producing a cubic meter of desalinated water was put at 60 US cents, but with Israeli officials still citing a water delivery price of 52.7 cents per cubic meter. In Tampa Bay, Florida, there's been a disclosure that when the plant is finally up and running in 2006, several years behind schedule, it may not be required to produce water at anything like its nominal 25-28 million gallons a day capacity - and this, in turn, raises questions concerning what the true cost of the facility's water will be - at least compared to its supposed cost of $1.67 per thousand US gallons (or 45 US cents per cubic meter).
机译：世界上最受关注的两个海水淡化项目再次证明，尽管可以就从工厂输送的水的价格达成协议，但计算实际生产该水的真实成本仍然是一种不可思议的技术。以色列在亚实基伦的新工厂正式开业（这是世界上最大的反渗透淡化工厂），生产一立方米淡化水的成本为60美分，但以色列官员仍在以供水价格为由每立方米52.7美分。在佛罗里达州的坦帕湾，有消息说，当该工厂最终于2006年投入运行时，比原定计划晚了几年，它可能不需要以每天标称的25-28百万加仑的产能生产水，而且反过来，这又引发了有关该设施的水的实际成本是多少的疑问，至少与它假定的每千加仑1.67美元（或每立方米45美分）的成本相比。

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