State-of-the-art of reverse osmosis desalination pretreatment
State-of-the-art of reverse osmosis desalination pretreatment
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DOI：
10.1016/j.desal.2014.10.039
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发表时间：
2015-01-15
期刊：
影响因子：
9.9
通讯作者：
Boysen, Buddy
中科院分区：
文献类型：
--
作者：
Henthome, Lisa;Boysen, Buddy
预处理在去除源水成分（如沉积物和微生物）方面起着关键作用，这些成分可能会阻碍下游反渗透（RO）脱盐过程。虽然有些源沃茨需要的预处理可以忽略不计，但其他如地表沃茨，需要严格的处理，以保护反渗透工艺的运行。反渗透行业在1995年至2010年期间迅速增长。增长推动行业寻找具有成本效益和强大的大规模预处理解决方案。在过去的二十年里，RO制造商还开发了具有更大抗污染性的膜，并提倡减少污染可能性的系统设计。因此，自20世纪90年代中期以来，预处理技术取得了显著的进步，许多预处理技术的改进都是通过对污染过程的更好理解而实现的。由于污垢是复杂的和动态的，与生物污垢有助于其复杂性，显着的研究和开发一直是必要的，以确定improvements.This本文提供了一个基础，以了解在反渗透系统中发现的各种污垢机制，并描述了当前国家的最先进的预处理技术的污垢控制。本文论述了RO技术应用于众多水源的预处理，重点介绍了海水RO SWRO预处理作为最大的单一预处理市场。(C)2014爱思唯尔有限公司版权所有。
Pretreatment plays the critical role of removing source water constituents, like sediment and microbes, which could hinder the downstream reverse osmosis (RO) desalination process. While some source waters require negligible pretreatment, others like surface waters, require rigorous treatment to protect the RO process operation.The RO industry grew rapidly between 1995 and 2010. Growth pushed the industry to find cost-effective and robust large-scale pretreatment solutions. Over the last two decades, RO manufacturers have also developed membranes with greater fouling resistance and advocated system designs that reduce fouling potential. As a result, the state of the art in pretreatment has progressed significantly since the mid 1990s.Many of the improvements in pretreatment were enabled by a better understanding of fouling processes. Because fouling is complex and dynamic, with biofouling contributing to its complexity, significant research and development have been necessary to identify improvements.This paper provides a basis to understand the various fouling mechanisms found in RO systems and to describe the current state-of-the-art of the pretreatment technologies for fouling control. The paper addresses pretreatment of the myriad water sources in which RO technology is applied, with greater emphasis on seawater RO SWRO pretreatment as the largest single pretreatment market segment. (C) 2014 Elsevier B.V. All rights reserved.