Next Article in Journal
The Effects of Exchange Flow on the Karst Spring Hydrograph under the Different Flow Regimes: A Synthetic Modeling Approach
Next Article in Special Issue
Development of Biochars Derived from Water Bamboo (Zizania latifolia) Shoot Husks Using Pyrolysis and Ultrasound-Assisted Pyrolysis for the Treatment of Reactive Black 5 (RB5) in Wastewater
Previous Article in Journal
Turning Pools in Stepped Fishways: Biological Assessment via Fish Response and CFD Models
Previous Article in Special Issue
Greenhouse Crop Residue and Its Derived Biochar: Potential as Adsorbent of Cobalt from Aqueous Solutions
 
 
Article

Characterization and Use of Char Produced from Pyrolysis of Post-Consumer Mixed Plastic Waste

Chemical Engineering Department, University of Granada, Avda. Fuentenueva, 18071 Granada, Spain
*
Authors to whom correspondence should be addressed.
Academic Editor: Luiza Campos
Water 2021, 13(9), 1188; https://doi.org/10.3390/w13091188
Received: 30 March 2021 / Revised: 16 April 2021 / Accepted: 22 April 2021 / Published: 25 April 2021
In this work, the pyrolysis of post-consumer mixed plastic waste (polypropylene (PP), polystyrene (PS) and polyethylene film (PE)) is carried out. The solid product of the pyrolysis is characterized and tested for its use as adsorbent of lead present in aqueous media. The pyrolysis temperature has a great influence on the solid product yield, decreasing when the temperature increases. The highest yield to solid product obtained is from the pyrolysis of film at lower temperature (450 °C), reaching almost 14%. The results of product solid characterization reveal that the carbon, hydrogen and nitrogen content decreases with increasing pyrolysis temperature. Furthermore, both the ash and the volatile content are related to the pyrolysis temperature. The ash content is higher when the pyrolysis temperature is higher, while when the temperature increases, a solid product with lower volatile content is obtained. In respect to specific surface area, a higher pyrolysis temperature improves the properties of the solid product as an adsorbent. The adsorption capacity increases as the pyrolysis temperature increases, with the highest value of 7.91 mg/g for the solid obtained in the pyrolysis at 550 °C. In addition, adsorption capacity increases as the initial concentration of lead rises, reaching a maximum value close to 26 mg/g for an initial concentration of 40 mg/L. The Sips model is the one that best reproduces the experimental results of the adsorption process equilibrium study. View Full-Text
Keywords: adsorption; chemical recycling; lead; plastic waste; pyrolysis adsorption; chemical recycling; lead; plastic waste; pyrolysis
Show Figures

Figure 1

MDPI and ACS Style

Martín-Lara, M.A.; Piñar, A.; Ligero, A.; Blázquez, G.; Calero, M. Characterization and Use of Char Produced from Pyrolysis of Post-Consumer Mixed Plastic Waste. Water 2021, 13, 1188. https://doi.org/10.3390/w13091188

AMA Style

Martín-Lara MA, Piñar A, Ligero A, Blázquez G, Calero M. Characterization and Use of Char Produced from Pyrolysis of Post-Consumer Mixed Plastic Waste. Water. 2021; 13(9):1188. https://doi.org/10.3390/w13091188

Chicago/Turabian Style

Martín-Lara, M. A., A. Piñar, A. Ligero, G. Blázquez, and M. Calero. 2021. "Characterization and Use of Char Produced from Pyrolysis of Post-Consumer Mixed Plastic Waste" Water 13, no. 9: 1188. https://doi.org/10.3390/w13091188

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop