Evaluation of fertilizer-drawn forward osmosis for coal seam gas reverse osmosis brine treatment and sustainable agricultural reuse

Youngjin Kim, Yun Chul Woo, Sherub Phuntsho, Long D. Nghiem, Ho Kyong Shon, Seungkwan Hong

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The fertilizer-drawn forward osmosis (FDFO) was investigated for treating coal seam gas (CSG) produced water to generate nutrient rich solution for irrigation. Its performance was evaluated and compared with reverse osmosis (RO) in terms of specific energy consumption (SEC) and nutrient concentrations in the final product water. The RO-FDFO hybrid process was developed to further improve FDFO. The results showed that FDFO has the lowest SEC followed by the RO-FDFO and RO processes. The final nutrient concentration simulation demonstrated that the RO-FDFO hybrid process has lower final concentration, higher maximum recovery and lower nutrient loss than the stand alone FDFO process. Therefore, it was suggested that the RO-FDFO is the most effective treatment option for CSG produced water as well as favourable nutrient supply. Lastly, membrane fouling mechanism was examined in CSG RO brine treatment by FDFO, and the strategies for controlling fouling were critically evaluated. KNO3 exhibited the highest flux decline corresponding to the highest reverse salt flux, while the most severe membrane scaling was observed with calcium nitrate, primarily due to the reverse transport of calcium ions. To control membrane fouling in FDFO process, both physical flushing and chemical cleaning were examined. Membrane cleaning with citric acid of 5% resulted in a complete flux recovery.

Original languageEnglish
Pages (from-to)22-31
Number of pages10
JournalJournal of Membrane Science
Volume537
DOIs
Publication statusPublished - 2017 Sep 1

Fingerprint

Osmosis
reverse osmosis
fertilizers
osmosis
Coal
reuse
Fertilizers
Reverse osmosis
coal
Gases
evaluation
nutrients
gases
Nutrients
fouling
membranes
Membrane fouling
energy consumption
Fluxes
Food

Keywords

  • CSG produced water
  • FDFO simulation
  • Fertilizer-drawn forward osmosis
  • Membrane cleaning
  • Specific energy consumption

ASJC Scopus subject areas

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cite this

Evaluation of fertilizer-drawn forward osmosis for coal seam gas reverse osmosis brine treatment and sustainable agricultural reuse. / Kim, Youngjin; Woo, Yun Chul; Phuntsho, Sherub; Nghiem, Long D.; Shon, Ho Kyong; Hong, Seungkwan.

In: Journal of Membrane Science, Vol. 537, 01.09.2017, p. 22-31.

Research output: Contribution to journalArticle

Kim, Youngjin ; Woo, Yun Chul ; Phuntsho, Sherub ; Nghiem, Long D. ; Shon, Ho Kyong ; Hong, Seungkwan. / Evaluation of fertilizer-drawn forward osmosis for coal seam gas reverse osmosis brine treatment and sustainable agricultural reuse. In: Journal of Membrane Science. 2017 ; Vol. 537. pp. 22-31.
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