都市垃圾中可燃物物理組成加權混樣與標準法測定乾基灰分之比較

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Title:	都市垃圾中可燃物物理組成加權混樣與標準法測定乾基灰分之比較 Comparisons between Weighted Samples Analysis and Standard Method for Ash Content of Municipal Solid Waste 都市垃圾(Municipal Solid Waste, MSW)中的灰分含量是焚化爐營運操作管理中相當重要的參數，然而灰分為廢棄物經過高溫灼燒使有機成分分解得到的殘留物，其比例越高將造成底渣產出量提昇，本研究利用相對差異百分比(Relative Percent Difference, RPD)比較可燃物物理組成加權混樣與標準法所得乾基灰分結果是否具顯著差異性，接著探討破碎粒徑2mm與1mm之垃圾樣品灰分分析結果之差異性，最後再應用相關性分析(Pearson Correlation Coefficient)探討乾基物理組成對於乾基灰分之影響。研究結果發現可燃物物理組成加權混樣與標準法所得乾基灰分差異百分比平均結果(第一季7.48%與第二季8.56%)均未超出樣品重複分析品質管制範圍(RPD10%)，顯示物理組成加權混樣樣品所得乾基灰分結果與標準方法之差異為可接受範圍，在不同破碎粒徑所得乾基灰分比較結果中發現，破碎粒徑2mm與1mm之垃圾樣品灰分分析結果所得平均差異百分比(第一季16.69%與第二季17.61%)均超出樣品重複分析品質管制範圍(RPD10%)，顯示在破碎粒徑2mm條件下所得乾基灰分結果與標準方法之差異較大;在物理組成與灰分之相關性分析中，發現廚餘類乾基物理組成含量與乾基灰分呈現顯著高度正相關(r=0.406，p<0.01)，亦即當物理組成中廚餘類比例增加灰分含量亦有增加之趨勢。 The ash content in municipal solid waste (MSW) is a very important parameter in the operation and management of the mass burn incinerator . However, the ash is the residue obtained by the high temperature burning of the waste. The higher the ash ratio, the higher the bottom ash will be, so ash analysis is indispensable in the study of the nature of MSW. In this study, the relative percent difference (RPD) was used to compare the ash analysis difference between the weighted mixed samples and standard method sample. Furthermore, the effect of the particle size in the preparation of the analysis samples on the ash contents were also examined. In addition, the correlations between the physical composition and the ash content were also evaluated by the pearson correlation coefficient analysis.It was found that the RPDs of the ash contents between the weighted mixed samples and standard method were 7.48% and 8.56% for season 1 and season 2, respectively. The RPDs does not exceed the quality control range of sample repeat analysis (RPD10%). In the comparison of dry basis ash content of different particle sizes prepared samples, it was found that the average RPDs between 2mm and 1mm were 16.69 and 17.61% for season 1 and season 2, respectively, and exceeded the quality control range of sample repeat analysis (RPD10%). Additionally, it was found that the physical composition of dry basis kitchen waste was significantly positively correlated with dry basis ash (r=0.406, p<0.01). That is to say, when the proportion of kitchen waste in the physical composition increases, the ash content also increases.
Authors:	聶敬恩
Contributors:	環境資源管理系林健榮
Keywords:	都市垃圾灰分物理組成加權混樣差異百分比破碎粒徑相關性分析 municipal solid waste ash analysis physical composition weighted mixed sample relative percent difference Pearson correlation coefficient
Date:	2019
Issue Date:	2022-10-21 10:26:11 (UTC+8)
Relation:	學年度：108， 128頁
Appears in Collections:	[Dept. of Environmental Resources Management] Dissertations and Theses

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