Arsenic Removal from Aqueous Solutions by Forward Osmosis

• Pham Minh Tuan

  Department of Chemical Engineering, The University of Kitakyushu

• Nishihama Syouhei

  Department of Chemical Engineering, The University of Kitakyushu

• Yoshizuka Kazuharu

  Department of Chemical Engineering, The University of Kitakyushu

Abstract

The potential applications of forward osmosis (FO) for arsenic (As) removal from water requires an improved understanding of As rejection performance. This study investigated the effects of As concentration and pH in the feed solution, the salt concentration in the draw solution, and surface orientation of a FO membrane on As rejection. The results showed that the pH of the solution played an important role in As rejection. Salt concentration in the draw solution significantly influenced the water flux through the membrane. The concentration polarization with respect to surface orientation was a key factor for As retention; FO operation using the membrane with the active layer oriented toward the feed solution (AL-FS) was more effective than using the membrane with the active layer oriented toward the draw solution (AL-DS).

Journal

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 53 (3), 95-99, 2020-03-20

  The Society of Chemical Engineers, Japan

Keywords

• Arsenic
• Forward Osmosis
• Internal Concentration Polarization

Details

• CRID: 1390283659861147264
• NII Article ID: 130007812273
• NII Book ID: AA00709658
• DOI: 10.1252/jcej.19we207
• ISSN: 18811299
• ISSN: 00219592
• NDL BIB ID: 030322895
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030322895
• Web Site: https://www.jstage.jst.go.jp/article/jcej/53/3/53_19we207/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed