Mercury Levels In Fly Ash And Apc Residue From Municipal Solid Waste Incineration Before And After Electrodialytic Remediation

Fly ash (FA) and Air Pollution Control (APC) residues collected from three municipal solid waste incinerators (MSWI) in Denmark and Greenland were treated by electrodialytic remediation at pilot scale for 8 to 10 h. The original residues and the treated material were analysed for mercury (Hg) in ord...

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Bibliographic Details
Published in:International Journal of Sustainable Development and Planning
Main Authors: Dias-Ferreira, Celia, Kirkelund, Gunvor Marie, Jensen, Pernille Erland
Format: Article in Journal/Newspaper
Language:English
Published: 2016
Subjects:
Arctic
Construction materials
EDR
electrodialytic remediation
Greenland
Hg
Incineration
Incinerators
MSW
MSWI
Waste
/dk/atira/pure/sustainabledevelopmentgoals/sustainable_cities_and_communities
SDG 11 - Sustainable Cities and Communities
/dk/atira/pure/sustainabledevelopmentgoals/responsible_consumption_and_production
SDG 12 - Responsible Consumption and Production
Online Access:https://orbit.dtu.dk/en/publications/d24290c8-3ea2-4032-829b-521fc1656e00
https://doi.org/10.2495/SDP-V11-N5-672-682
https://backend.orbit.dtu.dk/ws/files/126116986/Mercury.pdf
Description
Summary:Fly ash (FA) and Air Pollution Control (APC) residues collected from three municipal solid waste incinerators (MSWI) in Denmark and Greenland were treated by electrodialytic remediation at pilot scale for 8 to 10 h. The original residues and the treated material were analysed for mercury (Hg) in order to assess the influence of the electrodialytic treatment on the concentrations of this element. Mercury levels varied with the MSWI residue, ranging from 0.41 mg kg−1 in FA sample from electrostatic precipitator (ESP) to 8.38 mg kg−1 in MSWI residues from a semi-dry system with lime and activated carbon. Two distinct behaviours were observed for mercury as a result of the electrodialytic treatment. This element became enriched in the MSWI residues from the semi-dry system with activated carbon, whereas it decreased in ESP’s and cyclone’s FA. This work presents for the first time information about the effect of electrodialytic treatment on mercury levels and discusses the valorisation options for these MSWI residues.

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