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| 題 名 | 培地茅的氮、磷吸收與對畜牧廢水之耐受性=The Capacity of Vetiver for Absorption of Nitrogen and Phosphorus and Its Tolerance to Livestock Wastewater |
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| 作 者 | 王紓愍; 陳嘉昇; | 書刊名 | 畜產研究 |
| 卷 期 | 38:3 民94.09 |
| 頁 次 | 頁207-216 |
| 分類號 | 445.463 |
| 關鍵詞 | 培地茅; 廢水處理; 氮; 磷去除; Vetiver; Wastewater treatment; Removal of nitrogen and phosphorus; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本研究的主要目的在探討培地茅(Vetiveria zizanioides)之氮、磷吸收能力與對畜牧廢水之耐受性,以評估應用於去除畜牧廢水氮、磷之可行性。水耕培養試驗結果顯示,培地茅可長期處於浸水狀態,不需通氣即可生長良好,在四種氮磷濃度培養14天後,植株之氮吸收量佔水耕液氮消滅量之比率分別為93%、94%、72%、72%;植株磷吸收量為水耕液磷消減量之26.7%、30.6%、19.1%及20.9%。培地茅於羊糞厭氣廢水之試驗結果顯示,培地茅對羊糞厭氣廢水之耐受性顯著高於布袋蓮(Eichhornia crassipes)及大萍(Pisyia stratiotes)。在高濃度廢水中培養2週,雖培地茅的根部組織部分變黑,生長略受抑制,但地上部外觀正常,無機氮、磷去除率高於對照組(不放植物)。以培地茅浮床漂浮於榨乳室廢水處理池上連續監測三個月的結果,廢水無機氮、磷去除效率由放置前之51.6%、12.9%提高至75.4%、27.2%。試驗結果顯示培地茅對畜牧廢水之耐受性高、氮、磷吸收量大,具備應用於處理畜牧廢水氮、磷之潛力。 |
| 英文摘要 | The capacity of nitrogen and phosphorus absorption and tolerance of vetiver to livestock wastewater (Vetiveria zizaniodes) were investigated in this study to evaluate the possibility of using vetiver in livestock wastewater treatment. The results of hydroponic experiment showed that vetiver adapted well in dipping condition without aeration. After incubating the vetiver in hydroponic solution of four levels of salt concentration, the ratios of plant absorption to total removal quantity from solutions were 93%, 94%, 72%, and 72% for phosphors, respectively. Comparison test showed that vetiver was more tolerant to goat excrement wastewater than were Eichhornia crassipes and Pisyia stratiotes. After incubating the vetiver in dense goat wastewater for two-weeks, its up-ground part looked normal though its growth was retarded with some roots turning black. Results also showed that nitrogen and phosphorus removal rates in vetiver treatments were higher in the control (no plant incubated). Further, we applied the vetiver raft directly in the regulation pools of goat milking house wastewater treatment system for three months to monitor the changes of salts before and after plant treatment. The removal rate increased from 51.6% to 75.4%for nitrogen and from 12.9% to 27.2% for phosphors after vetiver treatment. The results showed that vetiver would be a good candidate for removal of nitrogen and phosphorus in livestock wastewater treatment. |
本系統中英文摘要資訊取自各篇刊載內容。