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首页> 外文期刊>Desalination and water treatment >CCD Series No-10: small compact BWRO closed-circuit desalination (CCD) units of high-recovery, low-energy and reduced fouling for supplied water upgrade to industry, irrigation, domestic, and medical applications
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CCD Series No-10: small compact BWRO closed-circuit desalination (CCD) units of high-recovery, low-energy and reduced fouling for supplied water upgrade to industry, irrigation, domestic, and medical applications

机译：CCD系列No-10：小型，紧凑型BWRO闭路脱盐（CCD）单元，具有高回收率，低能耗和减少结垢的特性，可将自来水升级为工业，灌溉，家庭和医疗应用

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The recently emerging new closed circuit desalination (CCD) technology enables performing high-recovery and low-energy BWRO desalination of reduced fouling irrespective of the number of elements per module and thus opened the door to a new class of small compact units for diverse applications. The design aspects and performance prospects of such small compact BWRO-CCD units (<5.4 m(3)/h; <130 m(3)/d) are illustrated with modules comprising either two or three elements each (MEn with n = 2-3). Since small compact BWRO units are extensively used for supplied water upgrade to industry, irrigation, domestic and medical applications, the unique performance characteristics of said small compact CCD units of high recovery and low energy is exemplified with feed of 200-750 ppm NaCl which cover the range of 230-900 ppm of ordinary supplied water sources worldwide. The supplied water upgrade by said compact CCD units are illustrated at the level of a single-pass quality permeates as well as at the level of double-pass quality permeates of exceptionally low salinity in the range 0.13-1.54 ppm depending on the feed salinity and the membrane salt rejection characteristics. The double-pass process in these compact CCD units implicate the use of first pass permeates as feed to the second pass, thereby enabling the same unit execute either a single or a double-pass process depending on the desired quality of permeate.
机译：最近出现的新的闭路淡化（CCD）技术使高污染回收率和低能耗的BWRO淡化实现了减少结垢的效果，而与每个模块的元素数量无关，从而为各种用途的新型小型紧凑设备打开了大门。举例说明了这种小型紧凑型BWRO-CCD单元（<5.4 m（3）/ h; <130 m（3）/ d）的设计方面和性能前景，其模块分别包含两个或三个元素（n = 2的MEn） -3）。由于小型紧凑型BWRO单元广泛用于工业，灌溉，家庭和医疗应用的供水升级，因此上述小型紧凑型CCD单元具有高回收率和低能耗的独特性能特征体现在200-750 ppm NaCl的进料中全世界普通供水的范围为230-900 ppm。所述紧凑型CCD单元提供的进水升级显示为单程质量渗透物的水平以及盐度在0.13-1.54 ppm范围内的极低盐度的双程质量渗透物的水平，具体取决于进料盐度和膜的脱盐特性。这些紧凑型CCD单元中的两次通过过程意味着将第一次通过的渗透物用作第二次通过的进料，从而使同一单元能够根据所需渗透物的质量执行一次或两次通过过程。

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