Mixing Water Treatment Residual with Excavation Waste Soil in Brick and Artificial Aggregate Making
Publication: Journal of Environmental Engineering
Volume 131, Issue 2
Abstract
A large quantity of water treatment residual is generated each year from fresh water treatment plants in Taiwan. Landfill disposal of the nonhazardous sludge is impractical because of the high cost of transportation and an increasing scarcity of landfill sites in Taiwan. The water treatment residual was characterized; the ceramic bodies were prepared and sintered to formulate into building bricks and artificial aggregates. The sintering temperature requirement by the water treatment residual was higher than normally practiced in brick works due to the higher and lower content. The excavation waste soil, practically clay, was blended with water treatment residual to improve the brick quality. Under the commonly practiced brick-making condition, up to 15% of water treatment residual could be added to produce first grade brick specified by the National Science Council (NSC). Test results of specific gravity, water absorption, and compressive strength of the artificial aggregates confirmed its applicability in constructions as various degrees of light-weight aggregates.
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Acknowledgment
This research was made possible through the support of the National Science Council under funding NSC-90-2211-E-009-029.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 131 • Issue 2 • February 2005
Pages: 272 - 277
Copyright
© 2005 ASCE.
History
Received: May 12, 2003
Accepted: Feb 13, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
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