Processing of MSW incineration bottom ash

The production of Municipal Solid Waste (MSW) is rising as the world population continues to increase. Consequently, the disposal of MSW becomes an increasingly serious problem. Although, incineration reduces the waste volume by about 90% and mass by about 70%, the remaining incineration ash has to...

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Main Author: Tan, Jasmine Zhen Hua.
Other Authors: Chui, Peng Cheong
Format: Final Year Project
Language:English
Published: 2008
Subjects:
Online Access:http://hdl.handle.net/10356/14154
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-141542023-03-03T16:50:47Z Processing of MSW incineration bottom ash Tan, Jasmine Zhen Hua. Chui, Peng Cheong School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering::Hazardous substances The production of Municipal Solid Waste (MSW) is rising as the world population continues to increase. Consequently, the disposal of MSW becomes an increasingly serious problem. Although, incineration reduces the waste volume by about 90% and mass by about 70%, the remaining incineration ash has to be disposed by landfilling. In a land scarce country like Singapore, such waste management strategy may not be sustainable. New incineration plants may have to be constructed and new land fill have to be found for incineration ash disposal. A viable solution is to process the MSW ash for beneficial reuse. Incineration bottom ash displays the properties that are close to natural aggregates and have many potential uses in civil engineering applications. Numerous pre-treatment methods have been investigated to pre-treat the ash to reduce heavy metals leached into the environment that would otherwise cause undesirable effects. Phosphate stabilization and carbonation are the most promising pre-treatments. However, the operational cost of treatment is uncertain. Reuse of bottom ash is still low despite many available pre-treatment methods. Cement grouting and phosphate stabilization were carried out to determine the effectiveness of stabilizing metals from incineration bottom ash. It was held that the soluble phosphate reagent is effective in stabilizing Cd, Cr, Cu, Ni, Pb Zn and Fe. Cement grouting is only effective in stabilizing Pb, Fe and Cr. 0.32 M H3PO4 provides the optimum stabilization. Bachelor of Engineering 2008-10-30T01:25:22Z 2008-10-30T01:25:22Z 2007 2007 Final Year Project (FYP) http://hdl.handle.net/10356/14154 en 57 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering::Hazardous substances
spellingShingle DRNTU::Engineering::Environmental engineering::Hazardous substances
Tan, Jasmine Zhen Hua.
Processing of MSW incineration bottom ash
description The production of Municipal Solid Waste (MSW) is rising as the world population continues to increase. Consequently, the disposal of MSW becomes an increasingly serious problem. Although, incineration reduces the waste volume by about 90% and mass by about 70%, the remaining incineration ash has to be disposed by landfilling. In a land scarce country like Singapore, such waste management strategy may not be sustainable. New incineration plants may have to be constructed and new land fill have to be found for incineration ash disposal. A viable solution is to process the MSW ash for beneficial reuse. Incineration bottom ash displays the properties that are close to natural aggregates and have many potential uses in civil engineering applications. Numerous pre-treatment methods have been investigated to pre-treat the ash to reduce heavy metals leached into the environment that would otherwise cause undesirable effects. Phosphate stabilization and carbonation are the most promising pre-treatments. However, the operational cost of treatment is uncertain. Reuse of bottom ash is still low despite many available pre-treatment methods. Cement grouting and phosphate stabilization were carried out to determine the effectiveness of stabilizing metals from incineration bottom ash. It was held that the soluble phosphate reagent is effective in stabilizing Cd, Cr, Cu, Ni, Pb Zn and Fe. Cement grouting is only effective in stabilizing Pb, Fe and Cr. 0.32 M H3PO4 provides the optimum stabilization.
author2 Chui, Peng Cheong
author_facet Chui, Peng Cheong
Tan, Jasmine Zhen Hua.
format Final Year Project
author Tan, Jasmine Zhen Hua.
author_sort Tan, Jasmine Zhen Hua.
title Processing of MSW incineration bottom ash
title_short Processing of MSW incineration bottom ash
title_full Processing of MSW incineration bottom ash
title_fullStr Processing of MSW incineration bottom ash
title_full_unstemmed Processing of MSW incineration bottom ash
title_sort processing of msw incineration bottom ash
publishDate 2008
url http://hdl.handle.net/10356/14154
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