Operation of reverse osmosis process for industrial waste water reclamation

✍ Scribed by Yaichi Kojima; Masanori Tatsumi

• Book ID: 104113027
• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 425 KB
• Volume: 23
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/s0011-9164(00)82511-4

✦ Synopsis

This is a report on operation results of RO plants. using Toray spiral nodules applied for reclazation of NO typical industrial waste vater, 1,000 ppp and 250 pp IDS value. (1) Recovery rate should be determined in accordance with TDS value of rau vater. and permeate required. Actually recovery ratio of 60 -95% is adopted frca the economical viev point. (2) MI? value (simplified plugging index. explained in page 3) of less than 150 is required for stable operation. This value of 150 vas obtained by ordinary pre-treataent technique. (3) Calcite. iron and organic matter , c;hich were deposired on the nabrane, vere successfully removed by chmical cleaning. However high silica contents requires-specific considera:ion. owing to its difficulty of cleaning up. (4) Flux decline cf RO cembrane was ascertained to be n-value of -0.02. (5) Supposing 15 years depreciation tern for the equipment cost. reclained water could possibly be aade at the cost of about 100 yen/&. TORAY SPIRAL UOIJRD l4ODULE 1.2) The general configuration of the Toray spiral vound nodule is shown in