Next Article in Journal
Investigation of the Use of a Bio-Derived Solvent for Non-Solvent-Induced Phase Separation (NIPS) Fabrication of Polysulfone Membranes
Previous Article in Journal
Applicability of a Supported Liquid Membrane in the Enrichment and Determination of Cadmium from Complex Aqueous Samples
Article Menu

Export Article

Open AccessArticle
Membranes 2018, 8(2), 22; https://doi.org/10.3390/membranes8020022

Effect of DS Concentration on the PRO Performance Using a 5-Inch Scale Cellulose Triacetate-Based Hollow Fiber Membrane Module

1
Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 755-0097, Japan
2
Graduate School of Science and Engineering, Yamaguchi University, Yamaguchi 755-0097, Japan
*
Author to whom correspondence should be addressed.
Received: 29 March 2018 / Revised: 14 April 2018 / Accepted: 14 April 2018 / Published: 1 May 2018
(This article belongs to the Special Issue Mass Transfer in Membranes)
View Full-Text   |   Download PDF [3596 KB, uploaded 3 May 2018]   |  

Abstract

In this study, pressure-retarded osmosis (PRO) performance of a 5-inch scale cellulose triacetate (CTA)-based hollow fiber (HF) membrane module was evaluated under a wide range of operating conditions (0.0–6.0 MPa of applied pressure, 0.5–2.0 L/min feed solution (FS) inlet flow rate, 1.0–6.0 L/min DS inlet flow rate and 0.1–0.9 M draw solution (DS) concentration) by using a PRO/reverse osmosis (RO) hybrid system. The subsequent RO system for DS regeneration enabled the evaluation of the steady-stated module performance. In the case of pilot-scale module operation, since the DS dilution and the feed solution (FS) up-concentration had occurred and was not negligible, unlike the lab-scale experiment, PRO performance strongly depended on operating conditions such as inlet flow rates of both the DS and FS concentration. To compare the module performance with different configurations, we proposed a converted parameter in which a difference of the packing density between the spiral wound (SW) and the HF module was fairly considered. In the case of HF configuration, because of high packing density, volumetric-based performance was higher than that of SW module, that is, the required number of the module would be less than that of SW module in a full-scale PRO plant. View Full-Text
Keywords: pressure-retarded osmosis; hollow fiber membrane; pilot-scale pressure-retarded osmosis; hollow fiber membrane; pilot-scale
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Yasukawa, M.; Shigefuji, D.; Shibuya, M.; Ikebe, Y.; Horie, R.; Higa, M. Effect of DS Concentration on the PRO Performance Using a 5-Inch Scale Cellulose Triacetate-Based Hollow Fiber Membrane Module. Membranes 2018, 8, 22.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Membranes EISSN 2077-0375 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top