English  |  正體中文  |  简体中文  |  Items with full text/Total items : 17019/19366 (88%)
Visitors : 2022772      Online Users : 478
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/32199


    標題: Phosphorous recovery by means of fluidized bed homogeneous crystallization of calcium phosphate. Influence of operational variables and electrolytes on brushite homogeneous crystallization
    作者: Caddarao, Patrick S.
    Garcia-Segura, Sergi
    Ballesteros, Florencio C., Jr.
    Huang, Yao-Hui
    Lu, Ming-Chun
    貢獻者: Univ Philippines, Coll Engn, Environm Engn Grad Program
    Chia Nan Univ Pharm & Sci, Dept Environm Resources Management
    Natl Cheng Kung Univ, Sustainable Environm Res Ctr, Dept Chem Engn
    關鍵字: Fluidized-bed reactor
    Phosphate homogeneous crystallization
    Water treatment technologies
    Granulation process
    Phosphate removal
    日期: 2018-02
    上傳時間: 2019-11-15 15:44:52 (UTC+8)
    出版者: ELSEVIER SCIENCE BV
    摘要: Phosphate recovery from wastewaters is one of the major engineering challenges to securing the worldwide food production. Fluidized-bed heterogeneous crystallization of struvite has been one of the most considered technologies. Nevertheless, the recovery of other phosphate products could be of the major interest at industrial level. Thus, in this work we present the recovery of calcium phosphate salts as brushite by a novel fluidized-bed homogeneous crystallization (FBHC) process. The no requirement of seeds in FBHC reactor allows obtaining high-purity crystals. The operational parameters of the FBHC process have been optimized in order to achieve the higher degree of granulation and to obtain the most homogeneous distribution of granules sizes. Thus, the treatment of 1500 mg/L of phosphate at pH 9.0 with a ratio of 1.2:1.0 of [Ca2+]:[PO43-](T) leads to the obtaining of ca. 90% of granulation with crystals of 0.5 mm of diameter. The influence of electrolytes typically found in TFT-LCD industry has been further considered. The characterization of the spheroidal crystals obtained allowed identifying brushite (calcium hydrogenphosphate salt) as unique crystal phase. (C) 2017 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
    Appears in Collections:[環境資源管理系(所)] 期刊論文

    Files in This Item:

    File Description SizeFormat
    10.1016-j.jtice.2017.12.009.pdf1606KbAdobe PDF24View/Open
    index.html0KbHTML73View/Open


    All items in CNU IR are protected by copyright, with all rights reserved.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback