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Waste Manag

Title:		Mitigating nutrient leaching with a sub-surface drainage layer of granulated tires
Author(s):		Lisi RD; Park JK; Stier JC;
Address:		"394 Horticulture, 1575 Linden Dr., Madison, WI 53706, USA"
Journal Title:		Waste Manag
Year:		2004
Volume:		24
Issue:		8
Page Number:		831 - 839
DOI:		10.1016/j.wasman.2004.03.012
ISSN/ISBN:		0956-053X (Print) 0956-053X (Linking)
Abstract:		"Markets for scrap tires have expanded since the early 1990s with the development of value-added applications such as tire-derived fuel and crumb-rubber-amended asphalt. Granulated tires have also displayed the ability to adsorb volatile organic compounds, indicating that the rubber material can be a useful filter media. Sand-based root zones, typically used for golf course putting green and athletic field construction, lack sufficient cation exchange capacity to restrict nitrogen and phosphorus migration through the root zone and into sub-surface drainage systems. Therefore, the adsorptive properties of tire rubber for retaining nitrogen and phosphorus were studied when applied as a distinct sub-surface drainage or intermediate layer in golf course putting greens. A statistically significant reduction in the concentration of nitrate in leachate was achieved by replacing traditional pea gravel with equally sized granulated tires for the drainage layer media, although the mechanism of nitrate mitigation remains unclear. The results indicate that using granulated tires as a drainage layer or fill material beneath sand-based root zones does not compromise the function of the profile or quality of the vegetation while creating an environmentally beneficial and value-added option for scrap tire reuse"
Keywords:		"Biodegradation, Environmental *Conservation of Natural Resources Filtration Nitrogen/analysis/*isolation & purification Phosphorus/analysis/*isolation & purification Plant Roots *Refuse Disposal *Rubber Silicon Dioxide Water Pollution/prevention & control;"
Notes:		"MedlineLisi, R D Park, J K Stier, J C eng 2004/09/24 Waste Manag. 2004; 24(8):831-9. doi: 10.1016/j.wasman.2004.03.012"