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- Title
Reuse of Air Pollution Control Ash.
- Authors
Zhang, Haiying; Qi, Jingyu
- Abstract
Experimental work was carried out to investigate the feasibility of application of air pollution control (APC) ash from a municipal solid waste incinerator (MSWI) in Shanghai, China, in making ceramic bricks by sintering between 950°C and 1100°C. Fired bricks were characterized by engineering and environmental properties including shrinkage, compressive strength, water absorption, and volatilization and leaching behavior of heavy metals. When 25% APC ash was added sintering between temperatures 975°C and 1075°C yielded qualified bricks with a compressive strength between 19.2 and 24.2 MPa. The amount of heavy metals available for leaching was greatly reduced to below 1.9% in the fired bricks, as opposed to over 36% in the APC ash. Leaching results of heavy metals from sintered bricks were considerably reduced in comparison with those from unfired bricks. Results suggested that utilization of MSWI fly ash in ceramic brick constituted a potential means of adding value.
- Subjects
SHANGHAI (China); CHINA; AIR pollution; MUNICIPAL solid waste incinerator residues; BRICKS; HEAVY metals; FLY ash
- Publication
Environmental Engineering Science, 2012, Vol 29, Issue 9, p902
- ISSN
1092-8758
- Publication type
Article
- DOI
10.1089/ees.2010.0359