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首页> 外文期刊>International journal of nuclear desalination >On the performance limitation of reverse osmosis water desalination systems
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On the performance limitation of reverse osmosis water desalination systems

机译：反渗透水淡化系统的性能局限性

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The performance of Reverse Osmosis (RO) water desalination processes was investigated using a simulated brackish water plant based on spiral-wound membranes. A semi-rigorous mathematical model was employed in the simulation to calculate the water and salt fluxes at any point along the filtration channel. The effects of two key parameters, namely the transmembrane pressure and membrane surface area, on the performance of the process were investigated. Some insights into the performance limitation of RO processes were obtained. The rapid increase in the osmotic pressure of the brine was found to be the main factor which limits the performance of the plant. The study has also revealed that any attempts to develop new membranes for brackish water desalination which withstand higher operating pressures than 4.5 MPa will not result in significant gains in the plant performance. For seawaters having high salinity, the development of membranes, which operate at a pressure of up to 10 MPa, will significantly improve the membrane's productivity.
机译：使用基于螺旋缠绕膜的微咸水厂研究了反渗透（RO）水脱盐工艺的性能。在模拟中使用了半严格的数学模型来计算沿过滤通道的任何点的水和盐通量。研究了跨膜压力和膜表面积这两个关键参数对工艺性能的影响。获得了对RO过程的性能限制的一些见解。发现盐水的渗透压的快速增加是限制植物性能的主要因素。该研究还表明，任何尝试开发新的膜用于微咸水脱盐的方法都可以承受高于4.5 MPa的工作压力，但不会显着提高工厂的性能。对于高盐度海水，在压力高达10 MPa的条件下运行的膜的开发将显着提高膜的生产率。

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