Abstract
In this study, crossflow ultrafiltration (CF/UF) was applied to ensure continuous removal of Hg-contacted FeS solids from suspension. The key parameters that are used to evaluate overall performance of the CF/UF treatment system are water flux (permeability or rejection), and variation of water quality (pH, Hg, Fe) in the permeate water over time, as affected by concentrations of anions (Cl−, NO3 −, SO4 2−). Accordingly, the same water quality parameters were used to evaluate the CF/UF system during desorption tests with thiosulfate solutions. Almost no release of Hg from solids during filtration of Hg-contacted FeS was observed, regardless of the presence of anions. Furthermore, desorption tests with thiosulfate solution showed that the solids retained on the UF membrane were shown to be stable. The surfaces of the solids deposited on the membrane were characterized by SEM/EDS and ATR/FT-IR. The SEM/EDS analysis identified active sites for Hg removal on the membrane surface and ATR/FT-IR analysis exhibited evidence of entire coverage of Hgcontacted FeS on the membrane surface. However, a gradual decrease of sorption capacity for Hg removal by the solids retained on the membrane was observed as additional feed water was applied.
| Original language | English (US) |
|---|---|
| Title of host publication | Ultrafiltration |
| Subtitle of host publication | Methods, Applications and Insights |
| Publisher | Nova Science Publishers, Inc. |
| Pages | 129-152 |
| Number of pages | 24 |
| ISBN (Electronic) | 9781536106244 |
| ISBN (Print) | 9781536105995 |
| State | Published - Jan 1 2017 |
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ASJC Scopus subject areas
- Engineering(all)
- Environmental Science(all)
Cite this
Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration. / Han, Dong Suk; Orillano, Maria; Duan, Yuhang; Batchelor, Bill; Park, Hyunwoong; Hilal, Nidal; Abdel-Wahab, Ahmed.
Ultrafiltration: Methods, Applications and Insights. Nova Science Publishers, Inc., 2017. p. 129-152.Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration
AU - Han, Dong Suk
AU - Orillano, Maria
AU - Duan, Yuhang
AU - Batchelor, Bill
AU - Park, Hyunwoong
AU - Hilal, Nidal
AU - Abdel-Wahab, Ahmed
PY - 2017/1/1
Y1 - 2017/1/1
N2 - In this study, crossflow ultrafiltration (CF/UF) was applied to ensure continuous removal of Hg-contacted FeS solids from suspension. The key parameters that are used to evaluate overall performance of the CF/UF treatment system are water flux (permeability or rejection), and variation of water quality (pH, Hg, Fe) in the permeate water over time, as affected by concentrations of anions (Cl−, NO3 −, SO4 2−). Accordingly, the same water quality parameters were used to evaluate the CF/UF system during desorption tests with thiosulfate solutions. Almost no release of Hg from solids during filtration of Hg-contacted FeS was observed, regardless of the presence of anions. Furthermore, desorption tests with thiosulfate solution showed that the solids retained on the UF membrane were shown to be stable. The surfaces of the solids deposited on the membrane were characterized by SEM/EDS and ATR/FT-IR. The SEM/EDS analysis identified active sites for Hg removal on the membrane surface and ATR/FT-IR analysis exhibited evidence of entire coverage of Hgcontacted FeS on the membrane surface. However, a gradual decrease of sorption capacity for Hg removal by the solids retained on the membrane was observed as additional feed water was applied.
AB - In this study, crossflow ultrafiltration (CF/UF) was applied to ensure continuous removal of Hg-contacted FeS solids from suspension. The key parameters that are used to evaluate overall performance of the CF/UF treatment system are water flux (permeability or rejection), and variation of water quality (pH, Hg, Fe) in the permeate water over time, as affected by concentrations of anions (Cl−, NO3 −, SO4 2−). Accordingly, the same water quality parameters were used to evaluate the CF/UF system during desorption tests with thiosulfate solutions. Almost no release of Hg from solids during filtration of Hg-contacted FeS was observed, regardless of the presence of anions. Furthermore, desorption tests with thiosulfate solution showed that the solids retained on the UF membrane were shown to be stable. The surfaces of the solids deposited on the membrane were characterized by SEM/EDS and ATR/FT-IR. The SEM/EDS analysis identified active sites for Hg removal on the membrane surface and ATR/FT-IR analysis exhibited evidence of entire coverage of Hgcontacted FeS on the membrane surface. However, a gradual decrease of sorption capacity for Hg removal by the solids retained on the membrane was observed as additional feed water was applied.
UR - http://www.scopus.com/inward/record.url?scp=85030254798&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85030254798&partnerID=8YFLogxK
M3 - Chapter
AN - SCOPUS:85030254798
SN - 9781536105995
SP - 129
EP - 152
BT - Ultrafiltration
PB - Nova Science Publishers, Inc.
ER -