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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/30994


    標題: Purification of landscape water by using an innovative application of subsurface flow constructed wetland
    作者: Chyan, Jih Ming
    Lu, Chien Chang
    Shiu, Ruei Feng
    Bellotindos, Luzvisminda M.
    貢獻者: Chia Nan Univ Pharm & Sci, Dept Environm Resources Management
    Chia Nan Univ Pharm & Sci, Dept Environm Sci & Engn
    Natl Sun Yat Sen Univ, Dept Marine Environm & Engn
    Univ Zamboanga, Archie Eustaquio Res Lab7000
    關鍵字: Embedded subsurface flowconstructed wetlands
    Biochemical oxygen demand
    Ammonium-nitrogen
    Total phosphorus
    Suspended solids
    Chlorophyll-a
    efficiency
    日期: 2016-01
    上傳時間: 2018-01-18 11:39:27 (UTC+8)
    出版者: Springer Heidelberg
    摘要: This study attempted to purify eutrophic landscape water under a low pollutant concentration and high hydraulic volume loading using an embedded subsurface flow (SSF) constructed wetland (CW). Three species of aquatic plants (i.e., Cyperus alternifolius subsp. flabelliformis, Canna indica, and Hydrocotyle verticillata) were found to be conducive to the requirements of purifying the low-polluted water. Field results of nearly 2 years of experiments showed that SSF CW purified the eutrophic water and maintained the landscape water in a visibly clear condition. In an environment approaching the SSF CW background concentration, pollutant removal processes were divided into modulation and optimum performance periods. Average concentrations of biochemical oxygen demand (BOD), ammonium-nitrogen (NH4+-N), and total phosphorous (TP) in the optimum performance period were 0.69-1.00, 0.35-1.42, and 0.19-0.23 mg/L, respectively. Almost 500 days of BOD and NH4+-N removals were necessary to perform optimally. A shorter period, 350 days, was required for TP optimum removal. This feature of two stage removals was not found in chlorophyll-a (Chl-a) and suspended solids (SS), whose averages were 11.86-17.98 and 13.30 mu g/L, respectively. Filter cleaning and water replacement were unnecessary, while only water recharging was needed to compensate for the water lost by evapotranspiration. The field SSF CW has maintained its performance level for over 7 years.
    關聯: Environmental Science and Pollution Research, v.23 n.1, pp.535-545
    Appears in Collections:[環境工程與科學系(所)] 期刊論文
    [環境資源管理系(所)] 期刊論文

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