Reverse osmosis desalination process with feed flow reversal operation: experimental studies

被引：2

作者：

Li, Tian ^{[1
]}

Tang, Di ^{[1
,2
]}

Song, Jie ^{[1
]}

Law, Adrian Wing-Keung ^{[1
,2
]}

机构：

[1] Nanyang Technol Univ, Nanyang Environm & Water Res Inst, Environm Proc Modelling Ctr, 1 Cleantech Loop,CleanTech One, Singapore 637141, Singapore

[2] Nanyang Technol Univ, Sch Civil & Environm Engn, 50 Nanyang Ave, Singapore 639798, Singapore

来源：

DESALINATION AND WATER TREATMENT | 2019年 / 144卷

基金：

新加坡国家研究基金会;

关键词：

Feed flow reversal; Cross flow; Reverse osmosis; Period; Rejection; ULTRASONIC SENSOR CONTROL; MITIGATION; FLUX;

D O I：

10.5004/dwt.2019.23587

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This study investigated the feed flow reversal operation in a single-spiral-wound reverse osmosis (RO) membrane module for low-concentration feeds. Different operating conditions of feed pressure, flow rate, concentration, and reversal period on the feed flow reversal RO operation were examined. The results showed that the feed pressure had a positive impact on the membrane recovery, while the feed flow rate and concentration played negative roles. With the increase of feed flow reversal period, the membrane recovery increased. The permeate flux and rejection were also examined for both feed flow reversal and cross flow RO. It is found that a higher permeate flux and rejection was achieved with a lower feed concentration or higher feed pressure. Comparing with cross flow RO, a slightly lower membrane recovery and rejection was obtained with feed flow reversal operations.

引用

页码：339 / 344

页数：6

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