A novel single-pass reverse osmosis configuration for high-purity water production and low energy consumption in seawater desalination

Jungbin Kim, Seungkwan Hong

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Seawater reverse osmosis (SWRO) desalination is required to produce high-quality water to meet stricter water standards, which could be satisfied with single-pass RO through the advancement of reverse osmosis (RO) membranes. In this study, a novel single-pass RO configuration was proposed to further improve permeate quality. Split partial single-pass (SSP) RO is a design in which the permeate from the rear RO element(s) in a pressure vessel is blended with the RO feed. This blending resulted in the dilution of the feed, leading to the production of high-quality permeate with lower energy demand. Modeling of the RO process demonstrates that SSP RO had the highest energy efficiency when the permeate from the 7th element (i.e., the last one in the single pass RO configuration) was circulated back and mixed with the feed. For typical SWRO operating conditions, SSP RO was effectively able to improve permeate quality. In fact, SSP RO produced an approximately 15% purer permeate compared to conventional single-pass RO. SSP RO was also always more energy-efficient than the two-pass RO configurations. The economic feasibility of the design was assessed further and the possibility of its practical application explored.

Original languageEnglish
Pages (from-to)142-154
Number of pages13
JournalDesalination
Volume429
DOIs
Publication statusPublished - 2018 Mar 1

Fingerprint

Reverse osmosis
Desalination
Seawater
desalination
Energy utilization
seawater
Water
water
energy consumption
reverse osmosis
Osmosis membranes
Pressure vessels
energy efficiency
Dilution
Water quality
Energy efficiency

Keywords

  • Low energy
  • Pure permeate
  • Reverse osmosis (RO)
  • Seawater desalination
  • Split partial single pass (SSP)

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

Cite this

@article{cb42970a06df47ebbabada28e6e249f6,
title = "A novel single-pass reverse osmosis configuration for high-purity water production and low energy consumption in seawater desalination",
abstract = "Seawater reverse osmosis (SWRO) desalination is required to produce high-quality water to meet stricter water standards, which could be satisfied with single-pass RO through the advancement of reverse osmosis (RO) membranes. In this study, a novel single-pass RO configuration was proposed to further improve permeate quality. Split partial single-pass (SSP) RO is a design in which the permeate from the rear RO element(s) in a pressure vessel is blended with the RO feed. This blending resulted in the dilution of the feed, leading to the production of high-quality permeate with lower energy demand. Modeling of the RO process demonstrates that SSP RO had the highest energy efficiency when the permeate from the 7th element (i.e., the last one in the single pass RO configuration) was circulated back and mixed with the feed. For typical SWRO operating conditions, SSP RO was effectively able to improve permeate quality. In fact, SSP RO produced an approximately 15{\%} purer permeate compared to conventional single-pass RO. SSP RO was also always more energy-efficient than the two-pass RO configurations. The economic feasibility of the design was assessed further and the possibility of its practical application explored.",
keywords = "Low energy, Pure permeate, Reverse osmosis (RO), Seawater desalination, Split partial single pass (SSP)",
author = "Jungbin Kim and Seungkwan Hong",
year = "2018",
month = "3",
day = "1",
doi = "10.1016/j.desal.2017.12.026",
language = "English",
volume = "429",
pages = "142--154",
journal = "Desalination",
issn = "0011-9164",
publisher = "Elsevier",

}

TY - JOUR

T1 - A novel single-pass reverse osmosis configuration for high-purity water production and low energy consumption in seawater desalination

AU - Kim, Jungbin

AU - Hong, Seungkwan

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Seawater reverse osmosis (SWRO) desalination is required to produce high-quality water to meet stricter water standards, which could be satisfied with single-pass RO through the advancement of reverse osmosis (RO) membranes. In this study, a novel single-pass RO configuration was proposed to further improve permeate quality. Split partial single-pass (SSP) RO is a design in which the permeate from the rear RO element(s) in a pressure vessel is blended with the RO feed. This blending resulted in the dilution of the feed, leading to the production of high-quality permeate with lower energy demand. Modeling of the RO process demonstrates that SSP RO had the highest energy efficiency when the permeate from the 7th element (i.e., the last one in the single pass RO configuration) was circulated back and mixed with the feed. For typical SWRO operating conditions, SSP RO was effectively able to improve permeate quality. In fact, SSP RO produced an approximately 15% purer permeate compared to conventional single-pass RO. SSP RO was also always more energy-efficient than the two-pass RO configurations. The economic feasibility of the design was assessed further and the possibility of its practical application explored.

AB - Seawater reverse osmosis (SWRO) desalination is required to produce high-quality water to meet stricter water standards, which could be satisfied with single-pass RO through the advancement of reverse osmosis (RO) membranes. In this study, a novel single-pass RO configuration was proposed to further improve permeate quality. Split partial single-pass (SSP) RO is a design in which the permeate from the rear RO element(s) in a pressure vessel is blended with the RO feed. This blending resulted in the dilution of the feed, leading to the production of high-quality permeate with lower energy demand. Modeling of the RO process demonstrates that SSP RO had the highest energy efficiency when the permeate from the 7th element (i.e., the last one in the single pass RO configuration) was circulated back and mixed with the feed. For typical SWRO operating conditions, SSP RO was effectively able to improve permeate quality. In fact, SSP RO produced an approximately 15% purer permeate compared to conventional single-pass RO. SSP RO was also always more energy-efficient than the two-pass RO configurations. The economic feasibility of the design was assessed further and the possibility of its practical application explored.

KW - Low energy

KW - Pure permeate

KW - Reverse osmosis (RO)

KW - Seawater desalination

KW - Split partial single pass (SSP)

UR - http://www.scopus.com/inward/record.url?scp=85040700995&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85040700995&partnerID=8YFLogxK

U2 - 10.1016/j.desal.2017.12.026

DO - 10.1016/j.desal.2017.12.026

M3 - Article

AN - SCOPUS:85040700995

VL - 429

SP - 142

EP - 154

JO - Desalination

JF - Desalination

SN - 0011-9164

ER -