新海橋人工溼地水質及底泥性質

為探討人工溼地處理都市廢水時水質及底泥營養鹽的變化，選定新北市新海一期人工溼地進行滞留池、密植區、開放水域及生態池等七池，分析其環境因子、水質及底泥成分之變化。初沉池（處理池A）水色較黑、混濁有異味、池週雜草遍生。第一水生植物密植區（處理池B）水色略微清澈，無明顯氣味，池邊雜草、蘆草叢生密集。第一水生植物密植區（處理池C）水色呈微綠、微黑、有懸浮顆粒，較無異味。開放水域（處理池D）水略清一點微黑、遠觀偏黃、有懸浮顆粒，較無臭味。第二水生植物密植區（處理池E）水更清一點、有時帶點綠色，無異味。生態池（處理池F）水略濁、有懸浮物，水生植物叢生，無異味。生態池（處理池G）水帶綠黃色，池邊雜草叢生無異味。水溫變化程度小於氣溫，處理池C及D水溫較高。水溫以第二季6月至8月較高。水體pH值介於6.5 -8.2之間。夏季水體pH值較春季低。採樣期間風速介於0.1-4.2ms^(-1)，並無顯著強風。濁度以處理池A最高。第二水生植物密植區（處理池）導電度最低。處理池A溶氧量最低。氧化還原電位第一季廢水處理初期呈現負值，至第二季已呈現上升趨勢。夏季底泥pH值有下降趨勢。灰分在8月份以後有上升趨勢。第三季底泥總碳百分比有下降趨勢。9、10月份總氮百分比較其他月份低。碳氮比於7、8月份較高。由水質及底泥性質顯示人工溼地不但適合處理都市污水，且具生態教育成效，未來具有開發潛力。

關鍵字

人工濕地；環境因子；水質性質；底泥特性

並列摘要

To investigate the water qualities and sediment properties during artificial wetland treatment, the Hsin-Hai Bridge artificial wetland located in New Taipei City, Taiwan was selected. It includes six ponds to treat the waste water of New Taipei City. The environmental conditions, water qualities and sediment properties were studied during April to November. The water was very dark color, turbidity with odor in primary sediment pond; it had slightly clean, some suspend particles, non-significant odor in the first high plantation area. The water was slightly dark with light yellow, some suspend particles, and non-fumes odor in open water pond; it was clear with slightly green and non-odor in the second high plantation area. The water was slightly turbidity with some suspend particles, but without any odor in ecological pond I; while it was greenish yellow color without any odor in ecological pond II. The variation of water temperatures was less than those of air temperatures, and the first high plantation area 1 and open water area had high water temperature during investigation. Water pH was between 6.5 and 8.2, and summer season had lower pH than those of spring season. The wind speed was in the range from 0.1 to 4.2 m s^(-1), and there was no significant strong wind during sampling. The primary sediment pond A had the highest turbidity, while the second high plantation area pond E had the lowest conductivity. The primary sediment pond A had the lowest dissolving oxygen content. The redox potential had negative values during April to early of June, and the values became positive values during the later of June to November. The pH value of sediment was 6.13 and 7.51, and the ash content was in the range from 88.54 to 97.69%. The primary sediment pond A had the highest total carbon and total nitrogen contents, while the first high plantation area pond C and the second high plantation area pond E had low total nitrogen content. The C/N ratio was in the range from 2.00 to 11.89. Artificial wetland can reduce the organic content in waste water and increase the water quality during treatment. Therefore, it had high potential for waste water treatment and ecological education in the future.

並列關鍵字

Artificial wetland ； Environmental condition ； Water quality ； Sediment property

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新海橋人工溼地水質及底泥性質

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