![Study of membrane separation processes of a betaine-like medicinal solution [An article from: Desalination]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR9NMM.jpg)
Study of membrane separation processes of a betaine-like medicinal solution [An article from: Desalination]
Book Details
Author(s)B.x. Cai
PublisherElsevier
ISBN / ASINB000RR9NMM
ISBN-13978B000RR9NM5
AvailabilityAvailable for download now
Sales Rank99,999,999
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Desalination, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Betaine is a medicine with the molecular formula of C"2"4H"2"6N"2O"1"3 extracted from plants. A betaine-like solution from present extraction processes contains large amounts of inorganic salts, water and foreign substances. A betaine-like solution is processed by early and subsequent filtering for foreign substance removal - electrodialysis (ED) for desalination and nanofiltration (NF) for concentration. The results showed that, after ED for 20-30 min, the salt rejection of the betaine-like solution reached 99.4%. As operating pressure rose, the water flux of NF increased; at lower operating pressure (0.8 MPa) the flux of NF process was stable within 35-40 L/m^2.h. As the concentrating times increased, NF flux was sharply lowered. The permeates from the ED and NF processes were determined at a wavelength of 480 nm with UV spectrophotometry, and the betaine-like concentrations in the permeates reached zero, showing that the optional membranes for separation of a betaine-like solution possess excellent retention.
Description:
Betaine is a medicine with the molecular formula of C"2"4H"2"6N"2O"1"3 extracted from plants. A betaine-like solution from present extraction processes contains large amounts of inorganic salts, water and foreign substances. A betaine-like solution is processed by early and subsequent filtering for foreign substance removal - electrodialysis (ED) for desalination and nanofiltration (NF) for concentration. The results showed that, after ED for 20-30 min, the salt rejection of the betaine-like solution reached 99.4%. As operating pressure rose, the water flux of NF increased; at lower operating pressure (0.8 MPa) the flux of NF process was stable within 35-40 L/m^2.h. As the concentrating times increased, NF flux was sharply lowered. The permeates from the ED and NF processes were determined at a wavelength of 480 nm with UV spectrophotometry, and the betaine-like concentrations in the permeates reached zero, showing that the optional membranes for separation of a betaine-like solution possess excellent retention.
