Diopside-based glass-ceramics from MSW fly ash and bottom ash

Journal Article · Sat Jul 01 04:00:00 EDT 2006 · Waste Management

DOI:https://doi.org/10.1016/j.wasman.2005.12.009· OSTI ID:20877582

Guangren, Qian ^[1]; Yu, Song ^[1]; Cangang, Zhang ^[2]; Yuqin, Xia ^[2]; Houhu, Zhang ^[1]; Pengcheong, Chui ^[3]

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1. School of Environment Engineering, Shanghai University, No. 149 Yangchang Road, Shanghai 200072 (China)
2. Administration of Solid Waste Management, Pudong New Area, Shanghai 200135 (China)
3. School of Civil and Environment Engineering, Nanyang Technological University (Singapore)

By utilising MSW fly ash from the Shanghai Yuqiao municipal solid waste (MSW) incineration plant as the main raw material, diopside-based glass-ceramics were successfully synthesized in the laboratory by combining SiO{sub 2}, MgO and Al{sub 2}O{sub 3} or bottom ash as conditioner of the chemical compositions and TiO{sub 2} as the nucleation agent. The optimum procedure for the glass-ceramics is as follows: melting at 1500 deg. C for 30 min, nucleating at 730 deg. C for 90 min, and crystallization at 880 deg. C for 10 h. It has been shown that the diopside-based glass-ceramics made from MSW fly ash have a strong fixing capacity for heavy metals such as lead (Pb), chromium (Cr), cadmium (Cd) etc.

• OSTI ID: 20877582
• Journal Information: Waste Management, Journal Name: Waste Management Journal Issue: 12 Vol. 26; ISSN WAMAE2; ISSN 0956-053X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
CADMIUM
CERAMICS
CHEMICAL COMPOSITION
CHROMIUM
COMBUSTION
CRYSTALLIZATION
DIOPSIDE
FLY ASH
GLASS
HEAVY METALS
LEAD
MAGNESIUM OXIDES
MELTING
NUCLEATION
RAW MATERIALS
SILICA
SILICON OXIDES
SOLID WASTES
TITANIUM OXIDES