Alterations of municipal solid waste incineration residues in a landfill.

Alterations of municipal solid waste incineration residues in a landfill. Research Abstract Details 

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Alterations of municipal solid waste incineration residues in a landfill. Abstract Text:

T Shimaoka,R Zhang,K Watanabe,

Fresh municipal solid waste incineration residues (MSWIR) and a drilling core of 2-10 years old landfilled MSWIR were investigated to determine the alterations due to weathering in a landfill. Physical and geochemical properties and transformations of major components and heavy metals were analyzed for fresh and landfilled residues. Carbonates and hydroxides (10-12vol%) as major mineralogical compositions in the 8-10 years weathered MSWIR were observed by modal analysis of thin sections. Three step sequential extractions indicated that reducible phases, mainly the Fe, Al and Mn hydroxides increased with depth in the landfill. A pH controlled leaching test (including availability test and pH dependent leaching test) was then conducted. Results indicated lower concentrations of leachable contents at pH values from 6 to 10 for the four elements (Pb, Zn, Al and Fe) in the 8-10 years landfilled residues than in the fresh and 1-2 years landfilled residues. This means that 8-10 years weathered MSWIR became more stable than fresh landfilled residues. The reasons for the stabilization of these elements might be the hydration of Al and Fe during weathering in the landfill, which then results in the heavy metals adsorptions of these minerals.

Alterations of municipal solid waste incineration residues in a landfill. Publishing Authors By Initials

T Shimaoka,R Zhang,K Watanabe,

For similar inorganic chemicals: elements: metals, heavy: zinc research abstracts see: inorganic chemicals: elements: metals, heavy: zinc research

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Alterations of municipal solid waste incineration residues in a landfill. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Waste management (New York, N.Y.)

VOLUME: 27

Page Numbers: 1444-51

Journal Abbreviation:

ISSN: 0956-053X

DAY: 25

MONTH: 07

YEAR: 2007

Alterations of municipal solid waste incineration residues in a landfill. Information

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LANGUAGE: eng

NlmUniqueID: 9884362

Alterations of municipal solid waste incineration residues in a landfill. Keywords Mesh Terms:

KEYWORDS: Zinc

MESH TERMS: analysis

Chemical & Substance for Abstract: Alterations of municipal solid waste incineration residues in a landfill. Information

Substance Name: Zinc

Registry Number: 7440-66-6

Grant and Affiliation Information for Alterations of municipal solid waste incineration residues in a landfill.

AFFILIATION: Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. shimaoka@ies.kyushu-u.ac.jp

Country: United States

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MEDLINETA: Waste Manag

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