查詢結果分析
相關文獻
- The Use of Wetlands Vegetations for Controlling Stormwater Pollution
- 集水區植生緩衝帶之配置
- 農業小集水區開發整治後土壤流失量與逕流量之評估
- 水稻與綠肥輪作下之化學肥料需求
- Land Management Unit vs. Sub-Watershed Non-Point Source Pollution Control Strategies for an Off-Stream Reservoir
- 美國北維幾吉尼亞規劃區委員會--集水區非點源污染防止及控制最佳經營管理(BMP)措施概要
- 美國非點源污染防治的歷史觀
- 水里溪集水區土壤流失量之推估
- 土地利用改變對石門水庫集水區環境品質之影響
- 臺灣氮肥需求及其污染之經濟分析
頁籤選單縮合
| 題 名 | The Use of Wetlands Vegetations for Controlling Stormwater Pollution=利用溼地植物控制非點源污染之研究 |
|---|---|
| 作 者 | 廖士龍; 余嘯雷; | 書刊名 | 中國環境工程學刊 |
| 卷 期 | 7:4 1997.12[民86.12] |
| 頁 次 | 頁385-396 |
| 分類號 | 445.259 |
| 關鍵詞 | 非點源污染; 濕地植物; 去污效率; 濕地模式; Wetland vegetation; Laboratory experiments; Modeling analysis; Stormwater pollution; |
| 語 文 | 英文(English) |
| 英文摘要 | 近年來,利用濕地來控制雨水逕流引起之污染,已日益受到重視,人造濕地已被 認為控制農業區非點源污染最經濟而有效之方法之一。本文報導以實驗室濕地植物槽式之試 驗,比較數種不同濕地植物之去污效率。量測之污染物包括總磷、正磷酸鹽,化學需氧量及 鋅。結果顯示植物總類及分佈,滯留時間,以及污染物之特性均對濕地之去污效率相關。人 造溼地之最佳設計,可利用溼地模式之分析來確定。 ), Zinc (Zn), and chemical oxygen demand (COD). Pollutant removal rates are calculated on a mass balance basis. The results verity that the removal rates for bucket wetlands are comparable to values reported in literature (based on the detention times of 1 day to 21 days). The removal rate differential between the experimental buckets and control bucket is highest for OP and is lowest for COD. The average concentration versus time demonstrates increasing removal rates for TP,OP, and Zn as time increases, but not for COD. The three types fo vegetation also tolerate a potentially toxic Zn concentration of 5.9 mg/L. The study results reveal that bulrush most effectively removes TP and OP among the three species adn that cattail and reed are more effective for Zn and COD removal. These three vegetated buckets produc e better pollutant removal rates (except for COD at low concentrations). For design considerations, a combination of bulrushes, cattails, and reeds is encouraged for achieving various degrees of pollutant removal. However, the reed used in the study is a very invasive, noxious species and should be used cautiously with proper design and maintenance. A modeling analysis is performed with the bucket system data. Results obtained indicate that a simple model, VirginiA Stormwater WETland Simulation Model (VASWETS), developed in the study has the ability to predict the optimal removal efficiencies for the three vegetation types examined. The modeling results further answer questions such as how much pollutant is removed due to settling, adsorption, and plant uptake, and how much pollutant is released from the substratum to the water column. |
本系統中英文摘要資訊取自各篇刊載內容。