e-journal

Thermal behaviour of ESP ash from municipal solid waste incinerators

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Abstract.
Stricter environmental regulations demand safer treatment and disposal of incinerator fly ashes. So far
no sound technology or a process is available for a sustainable and ecological treatment of the waste
incineration ashes, and only partial treatment is practised for temporary and short-term solutions. New
processes and technology need to be developed for comprehensive utilization and detoxification of the
municipal solid waste (MSW) incinerator residues. To explore the efficiency of thermal stabilisation and
controlled vitrification, the thermal behaviour of electrostatic precipitator (ESP) ash was investigated
under controlled conditions. The reaction stages are identified with the initial moisture removal, volatilisation, melting and slag formation. At the temperature higher than 1100 ◦C, the ESP ashes have a quicker weight loss, and the total weight loss reaches up to 52%, higher than the boiler ash. At 1400 ◦C a salt layer and a homogeneous glassy slag were formed. The effect of thermal treatment on the leaching characteristics of various elements in the ESP ash was evaluated with the availability-leaching test. The leaching values of the vitrified slag are significantly lowered than that of the original ash.

Keywords:
MSW
Incineration
Fly ash
ESP ash
Thermal behaviour
Vitrification
Immobilisation

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Informasi Detail

Judul Seri

Journal of Hazardous Materials

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Journal of Hazardous Materials 166 (2009) 567–575

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

LINGKUNGAN HIDUP

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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