海水淡化
海水
硼
膜
环境工程
吸附
水处理
制浆造纸工业
化学
环境科学
废物管理
工程类
生态学
有机化学
生物化学
生物
作者
Masahide Taniguchi,Yoshinari Fusaoka,T. Nishikawa,Masaru Kurihara
出处
期刊:Desalination
[Elsevier]
日期:2004-08-01
卷期号:167: 419-426
被引量:99
标识
DOI:10.1016/j.desal.2004.06.157
摘要
In the seawater desalination field, the WHO requires that boron concentration in drinking water be below 0.5 mg/l, and this requirement has affected SWRO process design because of the difficulty in achieving such a low boron concentration. In order to overcome this problem, anew SWRO membrane element with higher boron-rejecting performance was developed. This new SWRO membrane element exhibits excellent boron rejection performance of 94–96% with high TDS rejection and high water productivity. This new membrane element could reduce posttreatment loading, and it might, lower drinking water production costs. In order to evaluate the economic impact of the new membrane, the production cost of various SWRO systems with post-treatment processes, the BWRO at high pH conditions and boron-adsorbent resin were estimated. As a result, the coot reduction of the new SWRO membrane was estimated to be up to 20% compared to conventional SWRO membranes. The three-stage system, which consists of SWRO followed by BWRO at high pH and the boron-adsorbent resin for the BWRO concentrate, was the most cost effective.
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