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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/4434

    標題: 以實場人工溼地系統直接處理社區污水效能之研究
    A study of using a built full-size constructed wetland system for treating municipal wastewater
    作者: 吳堅瑜
    Chien-Yu Wu
    貢獻者: 荊樹人
    關鍵字: 人工溼地
    constructed wetland
    municipal wastewater
    fate of pollutants
    on-site operation
    ecological engineering
    日期: 2003
    上傳時間: 2009-10-08 14:53:19 (UTC+8)
    摘要: 在自然環境中,溼地是一動、植物種類相當豐富的生態環境,當物質進入溼地中,常可由其中生物將其利用或沉積,因而可應用於去除水中的污染物。本研究主要利用全國第一個已經建立完成之實場人工溼地系統,直接處理社區污水。研究目標為建立以二級處理方式,操作生態淨水系統的最佳操控參數。探討污染物質在溼地中的宿命,藉由分析污染物質的流向分佈,得知污染物的濃度範圍。完成之後,便能以此生態工法直接處理社區污水,進而降低對自然水體的污染量,達到河川與水庫淨化的最終目的。而其研究成果,更可提供將來在生態上,研究溼地演化與觀察溼地污染之指標,作為日後因應去除環境污染物所設置的人工溼地,乃至於自然溼地保育工作之參考,以達到水資源保育與永續利用之目的。
    在累積了一年以上的實場操作經驗與各項水質監測的分析數據之後,各污染物在溼地中的淨化效能:BOD5進流水平均濃度為56.5±20.0 mg/L(n=51),放流水平均濃度為12.0±4.6 mg/L,去除率為78.7%。COD進流水平均濃度為115.1±36.0 mg/L(n=59),放流水平均濃度為52.5±14.2 mg/L,去除率為54.4%。SS進流水平均濃度為65.6±35.9 mg/L(n=57),放流水平均濃度為13.7±5.6 mg/L,去除率為79.1%。NH3-N進流水平均濃度為19.1±9.7 mg/L(n=54),放流水平均濃度為12.5±7.6 mg/L,去除率為34.8%。TP進流水平均濃度為3.55±1.38 mg/L(n=14),放流水平均濃度為2.74±1.71 mg/L,去除率為22.93%。大腸桿菌群平均進流濃度為12.4×105±11.7×105 CFU/100ml(n=57),平均放流濃度為1.6×105±1.5×105 CFU/100ml,去除率達到87.3%。
    In a natural environment, wetlands have a wide variety of animal and vegetation species. When pollutants enter a wetland, they may be utilized by the biological species inside the wetland or settled in the sediments so that the wetland systems are often applied in removing pollutants from water.
    The main goal of this study is using a built full-size constructed wetland (CW) system to a municipal wastewater from a community.
    The major purpose of this study is developing the optimal and control parameters and models for using ecological treatment systems to treat municipal wastewater. The study is proposed to investigate the fate of polluting materials in wetland systems. The whole process is analyzing the distributions of pollutants in the system to study the endurance to pollutants of various macrophytes by observing the speed of plant growth and the ranges of pollutant concentrations.
    After the accomplishment of this study, such systems then can be used to treat wastewater from communities, which do not have sewage or treatment systems. The ultimate goal is to clear up the polluted rivers and eutrophic reservoirs by reducing discharge of pollutants to those water bodies.
    The results obtained from this study should be able to offer information for understanding the revolution of wetland ecosystem and the degree of effect on wetland system due to pollution. Furthermore, the results may also used as references for those constructions of CW in treating environmental pollutants and the protection of natural wetland systems so as to achieve the ultimate goal of the protection and persistent utilization of water resource.
    Show removal efficiency of pollutants in CW. BOD5 of influent is 56.5±20.0 mg/L (n=51) on average, and effluent is 12.0±4.6 mg/L on average. Average removal ratio is 78.7%. COD of influent is 115.1±36.0 mg/L (n=59) on average, and effluent is 52.5±14.2 mg/L on average. Average removal ratio is 54.4%. SS of influent is 65.6±35.9 mg/L (n=57) on average, and effluent is 13.7±5.6 mg/L on average. Average removal ratio is 79.1%. NH3-N of influent is 19.1±9.7 mg/L (n=54) on average, and effluent is 12.5±7.6 mg/L on average. Average removal ratio is 34.8%. TP of influent is 3.55±1.38 mg/L (n=14) on average, and effluent is 2.74±1.71 mg/L on average. Average removal ratio is 22.93%. Total Coliforms and E-coli of influent is 12.4×105±11.7×105 CFU/100ml (n=57) on average, and effluent is 1.6×105±1.5×105 CFU/100ml on average. Average removal ratio is 87.3%.
    關聯: 校內公開,校外永不公開
    Appears in Collections:[環境工程與科學系(所)] 博碩士論文

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