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 language | English |
|---|---|
| Pages (from-to) | 22-31 |
| Number of pages | 10 |
| Journal | Journal of Membrane Science |
| Volume | 537 |
| DOIs | |
| Publication status | Published - 2017 Sep 1 |
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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 journal › Article
}
TY - JOUR
T1 - Evaluation of fertilizer-drawn forward osmosis for coal seam gas reverse osmosis brine treatment and sustainable agricultural reuse
AU - Kim, Youngjin
AU - Woo, Yun Chul
AU - Phuntsho, Sherub
AU - Nghiem, Long D.
AU - Shon, Ho Kyong
AU - Hong, Seungkwan
PY - 2017/9/1
Y1 - 2017/9/1
N2 - 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.
AB - 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.
KW - CSG produced water
KW - FDFO simulation
KW - Fertilizer-drawn forward osmosis
KW - Membrane cleaning
KW - Specific energy consumption
UR - http://www.scopus.com/inward/record.url?scp=85019069255&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85019069255&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2017.05.032
DO - 10.1016/j.memsci.2017.05.032
M3 - Article
AN - SCOPUS:85019069255
VL - 537
SP - 22
EP - 31
JO - Jornal of Membrane Science
JF - Jornal of Membrane Science
SN - 0376-7388
ER -