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
Date Issued
2000-07-31
Date
2000-07-31
Author(s)
楊萬發
DOI
892211E002024
Abstract
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.
Subjects
Fly Ashes
Bottom Ashes
Leachate
Heavy Metals
Publisher
臺北市：國立臺灣大學環境工程學研究所
Type
report
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