Heavy metal emission factors for municipal solid waste incinerators
碩士 === 國立中央大學 === 環境工程學系 === 85 === Abstract The practice of separation and recycling of waste for reuse does not prevail in Taiwan, so heavy metals jam into municipal solid waste (MSW) incinerators. Although the mass and volume...
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ndltd-TW-085NCU005150112015-10-13T17:59:41Z http://ndltd.ncl.edu.tw/handle/73202974492765903314 Heavy metal emission factors for municipal solid waste incinerators 都市垃圾焚化爐重金屬排放係數之初步探討 Jen, Chuan-Hsiung 任傳雄 碩士 國立中央大學 環境工程學系 85 Abstract The practice of separation and recycling of waste for reuse does not prevail in Taiwan, so heavy metals jam into municipal solid waste (MSW) incinerators. Although the mass and volume can be effectively reduced by incineration, heavy metals may present in the form of fly ash or vapor in flue gas at the same time. Emissions of heavy metals may cause great impacts on human health and environment and need to be addressed. Two MSW incinerators (designated as Plant A and Plant B) in northern Taiwan were selected for conducting stack sampling and determination of the multiple metals emissions. Heavy metals examined in this study include zinc, lead, cadmium, chromium, copper and mercury. Isokinetic sampling was typically performed for 3~4 hours after the leak-check had been completed. The samples were then analyzed by atomic absorption spectrometry after proper digestion procedure. Preliminary results indicated that the average removal efficiency of particulate was about 99.95%, and the average removal efficiency of heavy metals could reach 99% or higher (except for Hg) for Plant A. The average removal efficiency of particulate was about 99.41% and the average removal efficiency of heavy metals could reach 94% or higher (except for Hg) for Plant B. The average removal efficiencies of Hg for Plant A and Plant B were 63.8% and 48.8%, respectively. The removal efficiencies of the existing air pollution control devices were close to that reported in the US EPA document (AP-42) for MSW combustors equipped with similar APCDs. Concentrations of heavy metals and particulate matter in gases can meet current emission standards in Taiwan for both plants, but particulate matter, Pb and Cd concentrations of Plant B are higher than the current emission regulations in Germany and Holland. As a result, more research is needed to investigate the way for further reduction of heavy metals and particulate matter emissions. In addition, the emission factors of heavy metals from MSW incinerators were established in this study as well. Chang Moo Been 張木彬 1997 學位論文 ; thesis 110 zh-TW |
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碩士 === 國立中央大學 === 環境工程學系 === 85 === Abstract
The practice of separation and recycling of waste for reuse does
not prevail in Taiwan, so heavy metals jam into municipal solid
waste (MSW) incinerators. Although the mass and
volume can be effectively reduced by incineration, heavy
metals may present in the form of fly ash or vapor in flue gas
at the same time. Emissions of heavy metals may cause
great impacts on human health and environment
and need to be addressed. Two MSW incinerators (designated as
Plant A and Plant B) in northern Taiwan were selected for
conducting stack sampling and determination of the
multiple metals emissions. Heavy metals examined
in this study include zinc, lead, cadmium, chromium, copper and
mercury. Isokinetic sampling was typically performed for 3~4
hours after the leak-check had been completed. The
samples were then analyzed by atomic absorption
spectrometry after proper digestion procedure.
Preliminary results indicated that the average removal
efficiency of particulate was about 99.95%, and the
average removal efficiency of heavy metals could reach 99%
or higher (except for Hg) for Plant A. The average removal
efficiency of particulate was about 99.41% and the
average removal efficiency of heavy metals could reach
94% or higher (except for Hg) for Plant B. The average removal
efficiencies of Hg for Plant A and Plant B were 63.8% and 48.8%,
respectively. The removal efficiencies of the existing
air pollution control devices were close to that reported in
the US EPA document (AP-42) for MSW combustors equipped
with similar APCDs. Concentrations of heavy metals and
particulate matter in gases can meet current emission
standards in Taiwan for both plants, but particulate matter,
Pb and Cd concentrations of Plant B are higher than the current
emission regulations in Germany and Holland. As a result,
more research is needed to investigate the way for
further reduction of heavy metals and particulate matter
emissions. In addition, the emission factors of heavy metals
from MSW incinerators were established in this
study as well.
|
author2 |
Chang Moo Been |
author_facet |
Chang Moo Been Jen, Chuan-Hsiung 任傳雄 |
author |
Jen, Chuan-Hsiung 任傳雄 |
spellingShingle |
Jen, Chuan-Hsiung 任傳雄 Heavy metal emission factors for municipal solid waste incinerators |
author_sort |
Jen, Chuan-Hsiung |
title |
Heavy metal emission factors for municipal solid waste incinerators |
title_short |
Heavy metal emission factors for municipal solid waste incinerators |
title_full |
Heavy metal emission factors for municipal solid waste incinerators |
title_fullStr |
Heavy metal emission factors for municipal solid waste incinerators |
title_full_unstemmed |
Heavy metal emission factors for municipal solid waste incinerators |
title_sort |
heavy metal emission factors for municipal solid waste incinerators |
publishDate |
1997 |
url |
http://ndltd.ncl.edu.tw/handle/73202974492765903314 |
work_keys_str_mv |
AT jenchuanhsiung heavymetalemissionfactorsformunicipalsolidwasteincinerators AT rènchuánxióng heavymetalemissionfactorsformunicipalsolidwasteincinerators AT jenchuanhsiung dōushìlājīfénhuàlúzhòngjīnshǔpáifàngxìshùzhīchūbùtàntǎo AT rènchuánxióng dōushìlājīfénhuàlúzhòngjīnshǔpáifàngxìshùzhīchūbùtàntǎo |
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