| Title: | Biochar removes volatile organic compounds generated from asphalt |
| Author(s): | Zhou X; Moghaddam TB; Chen M; Wu S; Adhikari S; |
| Address: | "State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan 430070, China; Key Laboratory of Highway Construction and Maintenance Technology in Loess Region, Shanxi Transportation Technology Research & Development Co., Ltd, Taiyuan 030032, China. Electronic address: zxx09432338@whut.edu.cn. Centre for Pavement and Transportation Technology, Department of Civil and Environmental Engineering, University of Waterloo, Waterloo N2L 3G1, Canada. Electronic address: p.baghaee@gmail.com. State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan 430070, China. Electronic address: chenmzh@whut.edu.cn. State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan 430070, China. Electronic address: wusp@whut.edu.cn. Kennesaw State University, 1100 South Marietta Parkway, Marietta, GA 30060, USA. Electronic address: sadhika3@kennesaw.edu" |
| DOI: | 10.1016/j.scitotenv.2020.141096 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) emission not only cause the environmental pollution, but also severely threaten human health as they are known to be toxic and carcinogenic. This study investigates the effects of biochar on removing the VOCs emission from asphalt. The biochar was obtained from the pyrolyzed productions of pig manure, waste wood and straw biomasses. Molecular model for the adsorption of the VOCs was developed and used to measure the adsorption energy and heat. The VOCs removal model was built and used to determine the VOCs removal mechanism in the asphalt. The results showed that biochar could remove alkanes, polycyclic aromatic hydrocarbons (PAHs) and sulphide compounds because of its intrinsic carbon negativity and porosity. Furthermore, source of the biochar was an influential factor on the adsorption of the VOCs compounds. Based on the results, waste wood-based biochar had the best adsorption performance which could be related to the amorphous carbon, graphite and its porous structure. Also, it shows that biochar has the great potential to be used as VOCs inhibitors" |
| Keywords: | Adsorption Animals Charcoal Hydrocarbons Swine *Volatile Organic Compounds Asphalt Biochar Morphology Removal mechanism Volatile organic compounds; |
| Notes: | "MedlineZhou, Xinxing Moghaddam, Taher Baghaee Chen, Meizhu Wu, Shaopeng Adhikari, Sanjeev eng Netherlands 2020/07/28 Sci Total Environ. 2020 Nov 25; 745:141096. doi: 10.1016/j.scitotenv.2020.141096. Epub 2020 Jul 22" |
