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題 名 | 山坡地垃圾處理場之滲出水水量與水質研究 |
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作 者 | 陳鴻烈; 鄭慧玲; 吳振彰; | 書刊名 | 農林學報 |
卷 期 | 44:2 1995.06[民84.06] |
頁 次 | 頁17-26 |
分類號 | 445.46 |
關鍵詞 | 山坡地垃圾處理場; 滲出水水量; 滲出水水質; 降雨; 掩埋齡; Landfill; Leachate flow; Characteristics of leachate; Rainfall; Landfill age; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究探討台灣地區山坡地垃圾處理場滲出水水量及水質特性,以台 中縣大里鄉大屯區垃圾衛生掩埋場為一典型滲出水處理場,作為本實驗實場之研 究,並對中部地區各掩埋場滲出水質隨掩埋齡的變化情形作一比較。研究結果顯 示,掩埋齡在一年以內的掩埋場,其滲出水中BOD/COD比值減少得非常迅速, 表示在此期間微生物對易分解約有機物反應非常快;而掩埋齡達一年至一年半以 上的掩埋場,雖然其BOD/COD比值仍隨掩埋時間的增長而減少,但已漸趨穩定, 表示微生物的作用已較為遲緩。若以BOD/TKN比值作為指標時,由數據顯示當 掩埋齡達一年至一年半以上時,BOD/TKN比值已趨向穩定,大約等於0.3;若將 BOD/TKN比值轉換成C/N比,其值約為0.1。以VSS/FSS為指標時,其比值隨掩 埋齡的增加而減少,一年至一年半以後下降速率漸趨緩慢。以pH值為指標時, pH值隨掩埋齡的增加而增加,直至穩定狀態。此外,從大屯場滲出水流且與雨 量的關係顯示:雨量愈大,滲出水量愈大,但滲出水滲出係數c值隨雨量增加而 降低。另外,由TOC及比電導度的分析可知大屯場雨量與滲出水質的關係,亦 即降雨對滲出水質有稀釋的效果,且其效應在連紀降雨與非連續降雨期間存有差 異:在連續下雨天之斜率較小,而在非連續下雨天的斜率較大。 |
英文摘要 | The purpose of this study was to search for flow rate and characteristics of landfillleachate in Taiwan. Investigations of leachate attenuation processes have been carried out viafield site experiments and in laboratory experiments. According to the results of analysis, theBOD/COD ratios first decrease's sharply within approximately one year and then progressivelylevels off with increasing landfill age. The phenomenon indicates that the reactions ofbiodegradable organics are rapid during approximately one year and half and steady state issoon reached. Similarly, the BOD/TKN ratios are nearly independent with landfill age whenthe time reach above approximately one year or one year and half. The BOD/TKN ratios ( ~0.35) were achieved at steady state, i.e., the C/N ratios were about 0.13. The VSS/FSS ratiosalso exibits decreasing trendency with landfill age. The pH value increased with increasinglandfill age until the stable conditions were achieved. In addition, it is clearly shown that theleachate flow linearly increased with an increase of rainfall, i.e., the leachate coefficient Cvalue decreased. The results of TOC and conductivity exhibited that different dilution slopeexisted between the continuous and continual rainy days, i.e., the higher slope was observed atcontinual rainy days. |
本系統中英文摘要資訊取自各篇刊載內容。