Technical and economic evaluation of distillation and reverse osmosis desalination processes

Technical and economic evaluation of distillation and reverse osmosis desalination processes
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DOI:
10.1016/0011-9164(93)80113-2
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发表时间:
1993-08
期刊:
影响因子:
9.9
通讯作者:
N. Wade
N. Wade
中科院分区:
工程技术2区
文献类型:
--
作者:
N. Wade

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这项研究表明,在中东的条件下,大型双装置蒸馏仍然与海水反渗透具有竞争力。然而,如果能源成本高,如在欧洲和美国,反渗透变得越来越有吸引力。当膜性能和寿命可能受到淤泥或给水污染的不利影响时,蒸馏装置通常比RO更能耐受困难的海水条件和恶劣的操作条件。多效蒸馏已被广泛应用于中小型规模的产品。较低的资本成本和辅助电力消耗使MED与MSF竞争,即使需要更多的单位。MED工厂现在是除了最大的安装之外的所有安装的主要竞争者。MED在高性能比设计方面比MSF具有更大的潜力。反渗透装置在膜性能和成本降低方面具有相当大的未来发展空间。RO可能是高能源成本领域的主要竞争者。
This study shows that distillation in large dual plant is still competitive with seawater reverse osmosis, for Middle East conditions. However, if energy costs are high, such as in Europe, and the USA, reverse osmosis becomes increasingly attractive. A distillation plant is generally more tolerant of difficult seawater conditions and severe operating conditions than RO when membrane performance and life can be adversely affected by silt or contamination of the feedwater. Multiple effect distillation is well established for the small to medium size range. The lower capital cost and auxiliary power consumption make MED competitive with MSF, even though a larger number of units are needed. MED plants is now a major contender for all but the very largest installations. MED has greater potential than MSF for high performance ratio designs. An RO plant has considerable scope for future development in terms of membrane performance and cost reduction. RO is likely to be the main contender in high energy cost areas.