Tire-Derived Steel for Hydrogen Sulfide Removal in Landfill Cover
Publication: Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
Volume 14, Issue 3
Abstract
The use of tire-derived steel, a by-product of tire recycling, for removal of in landfill cover systems was examined through a laboratory study. Experiments under both static and dynamic conditions were conducted. Results demonstrated that tire-derived steel removed to a greater extent relative to a control landfill cover material consisting of sandy soil. In batch experiments, over 98% [550 parts per million (ppm) initial concentration] was removed in 2 min by 20 g of tire-derived steel, compared to only 50% removal in 60 min by the same amount of soil. In column experiments using 100 ppm inlet gas concentrations, after 24-h continuous operation, the outlet concentration increased to over 90 ppm in the sandy soil columns, while it was less than 1 ppm in the tire-derived steel columns. The experimental results showed that the outlet concentrations from the closed columns were higher than that from the open columns, indicating a potential role of oxygen in creating or regenerating reactive surfaces for removal.
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© 2010 ASCE.
History
Received: Oct 22, 2009
Accepted: Jan 14, 2010
Published online: Jan 28, 2010
Published in print: Jul 2010
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