最近の膜による水処理技術　２　　かん水淡水化・超純水製造用極超低圧逆浸透膜

• 房岡 良成

  東レ (株)

書誌事項

タイトル別名

• Super Ultra Low Pressure Composite Reverse Osmosis Membrane Elements for Brackish Water Desalination and Ultrapure Water Production.
• カンスイ タンスイカ チョウジュンスイ セイゾウヨウ ゴクチョウ テイアツ ギャクシントウ マク

抄録

We have already developed several kinds of high performance polyamide composite membranes for reverse osmosis (RO). They have replaced cellulose acetate membranes in the field of ultrapure water production, seawater desalination, softening and desalination of brackish water, and recovery of valuable materials. RO membranes are mainly used in ultrapure water production system for semiconductor manufacturing in Japan, and the RO process is already indispensable fundamental technique in it. <BR>Today, as a much lower pressure operation is required from a view point of energy saving, improvement of a water productivity of membrane element is one of the technological trends in the field of low pressure RO membrane elements. <BR>Recently, we have developed a new crosslinked fully aromatic polyamide super ultra low pressure composite RO membrane which can be used at around 0.5 MPa. The new composite RO membrane has approximately 50% higher water flux than UTC-70U keeping the high solute rejection of UTC-70U.

収録刊行物

• 膜

  膜 24 (6), 319-323, 1999

  日本膜学会

キーワード

• composite membrane
• reverse osmosis
• super ultra low pressure
• chemical structure
• micro morphology

詳細情報

• CRID: 1390001206422563840
• NII論文ID: 10007828579
• NII書誌ID: AN0023215X
• DOI: 10.5360/membrane.24.319
• ISSN: 18846440
• ISSN: 03851036
• NDL書誌ID: 4926451
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4926451
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可