English  |  正體中文  |  简体中文  |  Items with full text/Total items : 16974/19261 (88%)
Visitors : 7669620      Online Users : 378
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/310902800/27016


    標題: Gas-bubbled nano zero-valent iron process for high concentration arsenate removal
    作者: Tanboonchuy, Visanu
    Hsu, Jia-Chin
    Grisdanurak, Nurak
    Liao, Chih-Hsiang
    貢獻者: 職業安全衛生系
    環境資源管理系
    關鍵字: Arsenic
    Arsenate
    Nano-scale iron
    Gas bubbling
    日期: 2011-02
    上傳時間: 2013-10-23 11:55:40 (UTC+8)
    出版者: Elsevier
    摘要: In this study, batch experiments were performed to investigate a novel process for high concentration arsenate removal in the presence of air and/or CO2 bubbling. The pretreatment step, CO2 bubbling at 300 mL/min for 5 min, was taken to adjust the solution pH to an acidic environment, followed by air bubbling at 300 mL/min for 10 min to increase dissolved oxygen in the solution. In the treatment period, the nano-scale zero-valent iron was applied to remove aqueous arsenate of 3000 μg/L, while the treatment system was continuously bubbled by 300 mL/min of air. Such a process resulted in outstanding performance in arsenate removal. Furthermore, in the field groundwater application, the arsenate removal rate for the proposed process was 5 times faster than the rate measured when the system was pretreated by acidic chemical species only.
    Appears in Collections:[職業安全衛生系(含防災所)] 期刊論文
    [環境資源管理系(所)] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML534View/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