Influence of Calcium Ions on the Fouling of a Thin-film Composite Reverse Osmosis Membrane by Alginate

• HARADA Mifuyu

  Graduate School of Sciences and Technology for Innovation, Yamaguchi University

• SUZUKI Tasuma

  Graduate School of Sciences and Technology for Innovation, Yamaguchi University Blue Energy Center for SGE Technology, Yamaguchi University, Yamaguchi University

• NIINAE Masakazu

  Graduate School of Sciences and Technology for Innovation, Yamaguchi University

抄録

The objective of this study was to investigate the influence of calcium ions（Ca^2＋）on the fouling propensity of a thin-film composite reverse osmosis（RO）membrane by alginate. Under the experimental conditions investigated in this study, an increase in Ca^2＋ of up to 0.2 mmol/L accelerated the fouling of the RO membrane. However, the fouling propensity was not influenced by concentrations of Ca^2＋ above 0.2 mmol/L. This result could be explained by the content of Ca^2＋ in the fouling layer, which increased when the concentration of Ca^2＋ in the feed water was 0.25 mmol/L or less and reached a plateau above 0.25 mmol/L.

収録刊行物

• 日本海水学会誌

  日本海水学会誌 73 (6), 356-357, 2019

  日本海水学会

キーワード

• RO membrane
• Polyamide, Fouling
• Alginate
• Calcium ion

詳細情報

• CRID: 1390004222629942016
• NII論文ID: 130007920230
• DOI: 10.11457/swsj.73.6_356
• ISSN: 21859213
• ISSN: 03694550
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可