Investigation of biomass and agricultural plastic co-pyrolysis: Effect on biochar yield and properties

Biochar from sawmill residues: characterization and evaluation for its potential use in the horticultural growing media

“…Cress, lettuce and tomato seeds are used in most of the past studies due to their higher growth response and sensitivity to phytotoxic substances. Both promotion and inhibition of seed germination after mixing with biochar was observed by other studies (Margenot et al 2018;Mumme et al 2018;Rathnayake et al 2021). In our study, lettuce, germination rate was 6% higher in BC75P25 and BC25P75…”

Sustainable management of plastic wastes in COVID-19 pandemic: The biochar solution

“… Yuan et al (2020a) and Wang et al (2020a) upcycled waste PET plastic bottles into engineered biochar for post-combustion CO 2 capture, successfully mitigating two critical environmental issues of plastic pollution and climate change, simultaneously, and this approach was further identified as a closed carbon loop from the life-cycle perspective, which is beneficial to achieve carbon neutrality by 2050 and sustainable plastic management. Rathnayake et al (2021) studied the properties and environmental applications of biochar produced by co-pyrolyzing biomass and plastic. In their study, spent growing medium and used plastic growing bags were co-pyrolyzed at 550 °C while the plastic content in the feedstock mixture was varied among 0, 0.25, 2.5, 5 and 10%.…”

Co-Pyrolysis of Cotton Stalks and Low-Density Polyethylene to Synthesize Biochar and Its Application in Pb(II) Removal

“…The co-pyrolysis of biomass and different types of plastics has been frequently studied; it should be noted that most studies on this topic focused on the interactions on thermal behavior and kinetics analysis [ 10 , 11 , 12 ]. Furthermore, some studies have demonstrated that co-pyrolysis could generate a positive synergistic interaction between improving the yield and the properties of production when compared to conventional pyrolysis technology [ 13 , 14 , 15 ]. Due to the use of different species and mix ratios of feedstock and pyrolysis conditions, a variety of conclusions on the characteristics of pyrolytic production have been acquired.…”

“…Due to the use of different species and mix ratios of feedstock and pyrolysis conditions, a variety of conclusions on the characteristics of pyrolytic production have been acquired. For example, Rathnayake et al (2021) [ 14 ] found that the presence of plastic in feedstock mostly had negative effects on the C and H content of biochars derived from the spent strawberry growing medium and a mostly positive effect on those of the bean crop residue-derived biochars [ 14 ]. During pyrolysis, cellulose, hemicellulose, and lignin behave differently, and also some extent of interaction may occur, which increases the complexity of the overall process.…”