Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/30685
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 18054/20253 (89%)
造访人次 : 24281248      在线人数 : 46
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://ir.cnu.edu.tw/handle/310902800/30685


    標題: 景觀水池循環流量對人工溼地淨化含氮污染物之影響
    作者: 許瑞峰
    貢獻者: 嘉南藥理科技大學環境工程與科學系(所)
    錢紀銘
    日期: 2008
    上傳時間: 2017-12-13 11:34:07 (UTC+8)
    摘要: 為探討景觀水池循環流量對人工溼地景觀水池淨化含氮污染物之影響,本專題研究應用潛流式人工溼地改善台南市某社區原有景觀水池惡化的水質,藉由氨氮、亞硝酸鹽、硝酸鹽等參數評估人工溼地系統之對含氮污染物的控制與穩定效能,同時也探討循環水流對系統效能的影響。根據由本研究之相關初步結果可發現景觀水池之水溫於觀測期間約為16.2~25.6℃,pH 值介於7.4~8.7,溶氧約介於3.2mg/L~7.1mg/L,此環境頗適於硝化反應,水力停留時間為2.91hrs 時,氨氮經8 日後,其濃?即從16.22mg/L 降至減至0.084mg/L,而水力停留時間為3.36hrs 時則需12天始降為0.1 mg/L,較長之停留時間與較高之溫度可提升氨氮之降解。而於氨氮降為背景值時亞硝酸鹽氮之濃度出現最大值;4.08mg/L 與4.61mg/L,其後降為背景值,此時,硝酸鹽氮濃度將隨之達最高濃度;67.85mg/L 與49.3mg/L,此濃度降至背景值需40天與25天,此與一般人工濕地之研究結果不同,其原因係水中之高溶氧不利於脫硝,致使硝酸鹽氮之累積現象較為明顯,惟系統中之潛流式人工溼地將其濃度降至背景值。
    In the present study, a subsurface flow (SSF) constructed wetland was merged to the landscape pond of apartment to improve the water quality. To investigate the effect of recirculation flow rate on the degradation of ammonia, the concentration of ammonia-nitrogen, nitrite-nitrogen, and nitrate-nitrogen were used to assess the performance. According to the results obtained, the temperature, pH, and dissolved oxygen of the water is quite fit to the requirements of nitrification reactions. As the longer the hydraulic retention time is, the faster the concentration of ammonia-nitrogen decreases to the background level. However, due to the high dissolved oxygen, nitrate-nitrogen was found to be accumulated in the water. It takes a longer time to decrease the nitrate-nitrogen for SSF.
    關聯: 計畫編號:97-2815-C-041-001-E
    計畫年度:97;執行起迄:2008-07-01~2009-02-28
    显示于类别:[環境工程與科學系(所)] 學生專題

    文件中的档案:

    档案 描述 大小格式浏览次数
    97-2815-C-041-001-E.pdf337KbAdobe PDF325检视/开启


    在CNU IR中所有的数据项都受到原著作权保护.

    TAIR相关文章

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