Work

Reactivity towards Na of biochars produced from date palm residues with different oxygen proportions during pyrolysis

Year: 2025

Type: conference-paper

Abstract: The use of biochar produced from the rachis of date palm leaves could help fight soil salinization while using under-utilized crop residues. To improve the specific surface area of the biochars produced and therefore their adsorption capacity, the addition of oxygen (3 and 7%) during pyrolysis was tested. The amount of Na adsorbed was relatively low (between 15 and 20% of Na added) whatever are the biochar considered (produced with or without O2). The release of this adsorbed Na in contact with water was quite important, from 100% for the lowest concentrations of Na added to 30-40% for the highest concentrations added, highlighting a low retention of Na by the biochars studied and a limited impact of the presence of O2 during pyrolysis.

Source: IOP Conference Series Earth and Environmental Science

DOI: 10.1088/1755-1315/1455/1/012006