Sulfur-containing air pollutants as draw solution for fertilizer drawn forward osmosis desalination process for irrigation use

Van Huy Tran, Sherub Phuntsho, Hyunwoong Park, Dong Suk Han, Ho Kyong Shon

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This study investigated suitability and performance of the sulfur-based seed solution (SBSS) as a draw solution (DS), a byproduct taken from the photoelectrochemical (PEC) process where the SBSS is used as an electrolyte for H2 production. This SBSS DS is composed of a mixture of ammonium sulfate ((NH4)2SO4) and ammonium sulfite ((NH4)2SO3), and it can be utilized as fertilizer for fertilizer drawn forward osmosis (FDFO) desalination of saline water. The FDFO process employed with thin-film composite (TFC) membrane and showed that the process performance (i.e. water flux and reverse salt flux) is better than that with cellulose triacetate (CTA) membrane. In addition, it produced high water flux of 19 LMH using SBSS as DS at equivalent concentration at 1 M and 5 g/L NaCl of feed solution (model saline water). Experimental results showed that the reverse salt flux of SBSS increased with the increase in pH of the DS and that lowering the concentration of ammonium sulfite in the SBSS led to the higher water flux of feed solution. The result also demonstrated that this SBSS is practically suitable for the FDFO process toward development of water-energy-food nexus technology using sulfur chemicals-containing air pollutant.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalDesalination
Volume424
DOIs
Publication statusPublished - 15 Dec 2017

Fingerprint

Air Pollutants
Osmosis
Fertilizers
Desalination
osmosis
Sulfur
Irrigation
desalination
sulfur
fertilizer
irrigation
Air
Seed
seed
Fluxes
Water
Saline water
sulfite
air pollutant
water

Keywords

  • By-product solution
  • Desalination
  • Draw solution
  • Fertigation
  • Fertilizer
  • Forward osmosis

ASJC Scopus subject areas

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

Cite this

Sulfur-containing air pollutants as draw solution for fertilizer drawn forward osmosis desalination process for irrigation use. / Tran, Van Huy; Phuntsho, Sherub; Park, Hyunwoong; Han, Dong Suk; Shon, Ho Kyong.

In: Desalination, Vol. 424, 15.12.2017, p. 1-9.

Research output: Contribution to journalArticle

Tran, Van Huy ; Phuntsho, Sherub ; Park, Hyunwoong ; Han, Dong Suk ; Shon, Ho Kyong. / Sulfur-containing air pollutants as draw solution for fertilizer drawn forward osmosis desalination process for irrigation use. In: Desalination. 2017 ; Vol. 424. pp. 1-9.
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