Thesis
Generation of activated carbon on the surface of used vehicle tires through pyrolysis treatment
Washington State University
Master of Science (MS), Washington State University
2013
Handle:
https://hdl.handle.net/2376/101977
Abstract
This study investigated the generation of activated carbon (AC) on the surface of used vehicle tires through pyrolysis treatment. Granular activated carbon (GAC) is a useful remediation tool, which in recent years has been used to remediated contaminated sediments. The generation of AC on the surface of used tires would be beneficial for sediment remediation as this form of AC could easily be removed from the sediment once saturated eliminating any chance of leaching. Pyrolysis conditions were held isothermally ranging from 20 to 50 min with ten min intervals. The ranges of temperatures investigated in this study were 250 to 290° C and 330 to 360° C. AC generation was quantified using American Standard Test Method Designation D4607-94. The control samples had an average iodine number of 151 mg/g ±21.7 %. Pyrolysis conditions that generated the greatest iodine number were 340° C held isothermally for 20 min, which produced an iodine number for the solid sample of 669 mg/g ± 22.2 %. The powdered sample with parallel pyrolysis condition generated an iodine number of 577 mg/g ± 2.44 %. No observable pattern was seen between generation of AC and holding temperature and time. Commercially sold GAC has a range of iodine numbers from 800 - 1,200 mg/g. The American Water Works Association (AWWA) has a minimum of 500 mg/g requirement for AC. This being said, while samples generated iodine numbers lower than those of commercially sold GAC it is still applicable for remediation as it meets the AWWA requirements.
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Details
- Title
- Generation of activated carbon on the surface of used vehicle tires through pyrolysis treatment
- Creators
- Julie Elizabeth Bryant
- Contributors
- Richard J. Watts (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Civil and Environmental Engineering, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525295901842
- Language
- English
- Resource Type
- Thesis