萬年溪海豐溼地氧化塘水質改善策略之研究

A Study of Water Quality Improvement on the Haifeng Constructed Wetland of Wannian Creek

邱善榮(Shan-Jung Chiu)

指導教授 ： 丁澈士

國立屏東科技大學/工學院/土木工程系所/碩士(2014年)

https://doi.org/10.6346/NPUST.2014.00266

摘要

臺灣地小人稠，在工業及經濟高度發展下，造成大量汙染使河川環境惡化，尤以生活污水、工業廢水、畜牧廢水為臺灣溪流三種主要污染源。在歐美及日本等先進國家利用人工溼地天然的自淨能力對於已經遭受污染的水體進行淨化已行之有年，因其設置費用比污水處理廠低廉，且具有滯洪、補注地下水、提供生物棲息繁衍空間以增加生物多樣性、改善自然景觀、操作維護簡單等效益。
本研究在於探討萬年溪上游之番子寮溪的畜牧廢水經蜿蜒渠道漫流及水生植物淨化作用流入生態池後，若再利用水位高低差滲濾作用流入崇蘭舊圳後之水源，經由定期的水質及水量監測瞭解其變化情形，以及透過取樣土體得到的滲透係數可由達西定律得知滲濾進入崇蘭舊圳之水量，又對水質進行檢測。經本研究發現，經滲濾作用後生化需氧量（BOD5）去除率43.8%，氨氮（NH3-N）則為35.2%，由此可見滲濾作用對生化需氧量（BOD5）及氨氮（NH3-N）均具有良好的污染去除效果，且250mmΦ、長250m的滲濾管亦可獲得50立方公尺/日(CMD)充足水量。
關鍵詞：淨化、溼地、達西定律。

關鍵字

淨化、溼地、達西定律

並列摘要

During the development of Taiwan’s industry and economy, heavy amounts of pollution has affected Taiwan’s rivers, resulting in environmental degradation. The three main sources of the pollution come from domestic sewages, industrial wastewater and livestock wastewater. In contrast, western society, such as North America and Europe, Japan and other advanced countries have used constructed wetland for natural purification methods. This method of purification has been used in contaminated water for many years, and the cost is much lower compared to sewage treatment plants. The results include flood detention, resupplying groundwater, provide habitual space for animals, increase biodiversity and improve natural landscape with simple and effective operations and maintenance.

This research is to investigate Wannian creek upstream Fanziliao creek of livestock wastewater after passing through an ecological pond with controlled overflow and decontaminating effect in Wanyanqudao. Using the water level height difference percolation through the Chunglanjiuzhen and regular monitoring of water quality and quantity changes to understand the behavior, as well as, the sampling of soil permeability coefficients obtained by Darcy’s law with water quality testing,the study found that after percolation,biochemical oxygen demand (BOD5) removal efficiency of 43.8%,ammonia (NH3-N) removal efficiency was 35.2%,thus percolation effects on biochemical oxygen demand (BOD5) and ammonia (NH3-N) have good pollution removal,and diameter 250mmΦ,250m length of percolation tube also receive 50 cubic meters / day (CMD) adequate water.
Keywords: purification, wetland, Darcy’s law.

並列關鍵字

purification, wetland, Darcy’s law

參考文獻

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