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Seawater desalination off the Chilean coast for water supply to the mining industry

机译：智利沿海的海水淡化为采矿业供水

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Water is an important component in the mining industry. With mines often located in remote and dry areas, a sustainable supply of water is crucial. The development of seawater desalination, reduced membrane costs, and reduced energy consumption have made seawater a viable source of water supply for mining. Reliability of the desalination plant, quality of the water, and the availability of sufficient water supplies are the most important requirements to be fulfilled for the mining industry. Therefore the best available and proven technologies meeting the above-mentioned criteria should be used. The key for successfully operating a seawater desalination process based on reverse osmosis membranes (SWRO) is the pretreatment. Several tests conducted by researchers all over the world have proven that ultrafiltration (UF) provides an optimum pretreatment for the SWRO. The UF removes all the suspended solids and provides a substantial reduction in the microbiological activity. The plugging in of SWRO spacers is completely eliminated and the SWRO cleaning frequency can be drastically reduced. This paper presents the experience of using the UF as a pretreatment to the SWRO in Chile. Two desalination plants are described. Both the plants are of the desalination type dual membrane: ultrafiltration followed by reverse osmosis. One plant (GasAtacama) was commissioned in June 2011 and has since been successfully in operation. The second plant (Minera Candelaria) is currently under construction.
机译：水是采矿业的重要组成部分。由于地雷通常位于偏远和干燥的地区，因此可持续的供水至关重要。海水淡化的发展，膜成本的降低以及能源消耗的降低，使海水成为采矿用水的可行来源。海水淡化厂的可靠性，水的质量以及充足的供水是采矿业要满足的最重要要求。因此，应使用满足上述标准的最佳可用技术和成熟技术。预处理是成功运行基于反渗透膜（SWRO）的海水淡化工艺的关键。全世界研究人员进行的多项测试证明，超滤（UF）可为SWRO提供最佳的预处理。 UF去除了所有悬浮的固体并显着降低了微生物活性。完全消除了SWRO垫片的插入，可以大大降低SWRO清洁频率。本文介绍了使用超滤作为智利SWRO预处理的经验。描述了两种脱盐设备。两种植物均为脱盐型双膜：超滤后反渗透。其中一间工厂（GasAtacama）于2011年6月投产，此后已成功运行。第二工厂（Minera Candelaria）目前正在建设中。

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