The bottom ash from municipal solid waste and sewage sludge co-pyrolysis technology: characteristics and performance in the cement mortar and concrete

This study presents an innovative stabilization method of fly ash derived from co-combustion of municipal solid waste and sewage sludge. Bottom ash, obtained from the same process, is used as a stabilizing agent. The stabilization method involved the use of two other components—flue gas desulfurization residues and coal fly ash. Leaching tests were performed on stabilized samples, aged in a laboratory at different times. The results reveal the reduction of the concentrations of heavy metals, particularly Zn and Pb about two orders of magnitude lower with respect to fly ash. The immobilization of heavy metals on the solid material mainly depends on three factors—the amount of used ash, the concentrations of Zn and Pb in as-received fly ash and the pH of the solution of the final materials. The inert powder, obtained after the stabilization, is a new eco-material, that is promising to be used as filler in new sustainable composite materials.

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Bottom ash derived from municipal solid waste and sewage sludge co-incineration: First results about characterization and reuse

Waste Management ◽

10.1016/j.wasman.2020.07.031 ◽

2020 ◽

Vol 116 ◽

pp. 147-156 ◽

Cited By ~ 4

Author(s):

Ahmad Assi ◽

Fabjola Bilo ◽

Stefania Federici ◽

Annalisa Zacco ◽

Laura E. Depero ◽

...

Keyword(s):

Sewage Sludge ◽

Municipal Solid Waste ◽

Solid Waste ◽

Bottom Ash ◽

First Results

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Formation of cement mortar with incineration municipal solid waste bottom ash

10.1063/1.4981846 ◽

2017 ◽

Author(s):

Ng Hooi Jun ◽

Mohd Mustafa Al Bakri Abdullah ◽

Kamarudin Hussin ◽

Tan Soo Jin

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Cement Mortar ◽

Bottom Ash

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Effect of Composted Sewage Sludge on Metals Leaching Behavior in Municipal Solid Waste Incineration Bottom Ash

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.295-298.418 ◽

2013 ◽

Vol 295-298 ◽

pp. 418-421

Author(s):

Hai Xia Zhang ◽

Takayuki Shimaoka

Keyword(s):

Heavy Metals ◽

Organic Matter ◽

Sewage Sludge ◽

Municipal Solid Waste ◽

Solid Waste ◽

Bottom Ash ◽

Waste Incineration ◽

Municipal Solid Waste Incineration ◽

Mswi Bottom Ash ◽

Composted Sewage Sludge

In order to study the effect of organic matter on the heavy metals leachability from municipal solid waste incineration (MSWI) bottom ash. In the project, the composted sewage sludge (CS) rich in organic matter was mixed with MSWI bottom ash in a certain proportion. e exudation test, determination of the leaching liquid pH, dissolved organic carbon and humus concentration, and the concentration of heavy metals. And the combination of CS and BA in organic compounds and metal content, calculate metal leaching rate. According to the experimental results, analysis of dissolved organic matter and humic acid concentrations and Cu and Cr leaching concentration, showed that when CS mixture ratio of 20%, organic matter and humic substances concentration and Cu and Cr leaching concentrations are highly linear correlation.

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Mechanical Behavior of the Cement Mortar with High Amount of Municipal Solid Waste Incineration (MSWI) Bottom Ash as an Alternative Aggregate

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.982.74 ◽

2014 ◽

Vol 982 ◽

pp. 74-78 ◽

Cited By ~ 2

Author(s):

Kirill Polozhiy ◽

Martin Keppert ◽

Marcel Jogl ◽

Robert Černý

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Bending Strength ◽

Cement Mortar ◽

Bottom Ash ◽

Waste Incineration ◽

Municipal Solid Waste Incineration ◽

Total Replacement ◽

Mswi Bottom Ash ◽

Municipal Waste Incineration

The aim of this study was to find out an application of the municipal waste incineration materials and try to use them as a replacement for the natural ones. MSWI (Municipal Solid Waste Incineration) bottom ash (BA) was used as partial/total replacement of siliceous sand in CEM II based mortar. Three size fractions of BA were used with respect to replace the siliceous sand in corresponding way. There were designed 5 mixtures with increasing replacement of siliceous sand by 25 % each. The water/cement ratio was decided to be taken according to the constant consistence of the mortar. The bulk density, compressive strength and bending strength of the mortars were decreasing with growing content of BA.

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