ScholarLens Back to search
2007•Environmental Science & TechnologyRequires access

Distribution and Leaching Characteristics of Heavy Metals in MSWI Fly Ash

Zhang Zheng-an

Open publisher page 3 citations

Abstract

Distribution of heavy metals in municipal solid waste incinerator(MSWI)fly ash was investigated by means of particle size and leaching procedures.Results showed that most of fly ash was accumulated in fractions with particle size of 38～280μm and fractions of 38～53μm accounted for about 50%.Besides Ni and Cr,other metals including Zn,Cd,Cu and Pb were mainly accumulated in fine fractions.The amount of Cr,Ni,Cu and Cd that leached out from fly ash samples increased with the decrease of particle size of fractions,while amount of Zn and Pb that leached out presented a rapid increase in 106～280μm and 75～106μm.Chemical speciation distribution of heavy metals was distinctly different according to results from sequential extraction procedure,and the most heavy metals were presented in the unstable speciation except of Ni and Cr.

About this research paper

What this paper is about

Distribution of heavy metals in municipal solid waste incinerator(MSWI)fly ash was investigated by means of particle size and leaching procedures.Results showed that most of fly ash was accumulated in fractions with particle size of 38～280μm and fractions of 38～53μm accounted for about 50%.Besides Ni and Cr,other metals including Zn,Cd,Cu and Pb were mainly accumulated in fine fractions.The amount of Cr,Ni,Cu and Cd that leached out from fly ash samples increased with the decrease of particle size of fractions,while amount of Zn and Pb that leached out presented a rapid increase in 106～280μm and 75～106μm.Chemical speciation distribution of heavy metals was distinctly different according to results from sequential extraction procedure,and the most heavy metals were presented in the unstable speciation except of Ni and Cr.

Why it matters

OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Distribution of heavy metals in municipal solid waste incinerator(MSWI)fly ash was investigated by means of particle size and leaching procedures.Results showed that most of fly ash was accumulated in fractions with particle size of 38～280μm and fractions of 38～53μm accounted for about 50%.Besides Ni and Cr,other metals including Zn,Cd,Cu and Pb were mainly accumulated in fine fractions.The amount of Cr,Ni,Cu and Cd that leached out from fly ash samples increased with the decrease of particle size of fractions,while amount of Zn and Pb that leached out presented a rapid increase in 106～280μm and 75～106μm.Chemical speciation distribution of heavy metals was distinctly different according to results from sequential extraction procedure,and the most heavy metals were presented in the unstable speciation except of Ni and Cr.

Key concepts: Fly ash, Leaching (pedology), Heavy metals, Chemistry, Environmental chemistry, Particle size, Particle-size distribution, Incineration

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Distribution and Leaching Characteristics of Heavy Metals in MSWI Fly Ash — Research Paper | ScholarLens