Reduced zinc leaching from scrap tire during pavement applications

Published by Elsevier Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 81(2018) vom: 01. Nov., Seite 53-60
1. Verfasser: Liu, Xuesong (VerfasserIn)
Weitere Verfasser: Wang, Jianmin, Gheni, Ahmed, ElGawady, Mohamed A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Asphalt Leaching Pavement Scrap tire Speciation-based model Zinc Water Pollutants, Chemical Rubber 9006-04-6 J41CSQ7QDS
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520 |a Large quantities of scrap tires have been generated and accumulated over the years. However, a significant amount of them are stocked due to the lack of environmentally-friendly methods for disposing of, or reusing them. Because tires contain approximately 1-2% zinc by weight, leaching of zinc from scrap tires could be an environmental concern. In this research, we investigated the leaching of zinc from tire particles that are used with asphalt for pavement applications. The effects of tire particle size and pH on zinc leaching were also examined. Our results indicated that asphalt treatment significantly reduced zinc leaching from tires, and that it was also reduced by increasing the tire particle size and pH. The leaching of zinc was quantified by using a speciation-based modeling approach. The model parameters, namely, the total leachable zinc mass and the adsorption constant, can be used to predict the leaching of zinc under different conditions. The reduction in zinc leaching from asphalt-treated tire particles was due to the physical blocking of the tire surface by the asphalt. Results also indicated that, while the leaching of zinc and other selected toxic elements from untreated tire particles using simulated acid rain was not significant compared to the drinking water regulations, asphalt treatment during the pavement application further improved the environmental performance of the tire particles 
650 4 |a Journal Article 
650 4 |a Asphalt 
650 4 |a Leaching 
650 4 |a Pavement 
650 4 |a Scrap tire 
650 4 |a Speciation-based model 
650 4 |a Zinc 
650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a Rubber  |2 NLM 
650 7 |a 9006-04-6  |2 NLM 
650 7 |a Zinc  |2 NLM 
650 7 |a J41CSQ7QDS  |2 NLM 
700 1 |a Wang, Jianmin  |e verfasserin  |4 aut 
700 1 |a Gheni, Ahmed  |e verfasserin  |4 aut 
700 1 |a ElGawady, Mohamed A  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Waste management (New York, N.Y.)  |d 1999  |g 81(2018) vom: 01. Nov., Seite 53-60  |w (DE-627)NLM098197061  |x 1879-2456  |7 nnns 
773 1 8 |g volume:81  |g year:2018  |g day:01  |g month:11  |g pages:53-60 
856 4 0 |u http://dx.doi.org/10.1016/j.wasman.2018.09.045  |3 Volltext 
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