|標題:||垃圾與焚化灰渣掩埋技術整合型研究(II)─子計畫二:灰渣掩埋利用技術與滲出水之污染控制||作者:||楊萬發||關鍵字:||飛灰;灰渣;垃圾滲出水;共同分層掩埋;重金屬;Fly Ashes;Bottom Ashes;Leachate;Heavy Metals||公開日期:||31-七月-2000||出版社:||臺北市：國立臺灣大學環境工程學研究所||摘要:||焚化法將成為台灣地區未來處理垃圾
Incineration will become the major way to dispose of waste .We have many incinerators which will be finished , when it works , there are thousands of ashes need to deal with everyday . Municipal solid waste(MSW) and ashes were co-landfilled in this study , and used tubes to gain the leachate . Incinerator fly ashes of EP , bottom ashes and solid waste were from Mu-Cha plant. In our plan, fly ashes, bottom ashes and MSW were co-landfilled in different ratio ; and conferred the situation about ashes which were landfilled by analysised the leachate. Besides , we sent leachate back to layer in order to observe the adsorbability of ashes. In analyzing the leachate , we observed that pH value in each tube were similar , between 6~8,and tube A had the highest COD value . Maybe there still were some organizes in fly ashes making this result. Moreover , we sent leachate back to tube B , but we found that it didn’t work in this way. Maybe the adsorbability of ashes were saturated. In analyzing negative ions , we found that Cl-> SO4 2-> NO3 -, and Cl- had the highest concentration , even up to one hundred thousand , but they all decreased gradually .Zn had the highest concentration in all heavy metals,Cu was the next , then were Cr ,Cd , Pb , and they decreased gradually, too. But in a long-time observation , we found that Cu , Pb were redissolved , maybe it’s deadsorbtion of ashes adsorbed ions.
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