Artigo de peri??dico
Influence of adsorption parameters on uranium adsorption capability by biochar derived from macauba coconut residue
Registro en:
2319-0612
2A
7
10.15392/bjrs.v7i2A.590
0000-0003-1618-0264
Sem Percentil
Autor
GUILHEN, S.N.
COLETI, J.
TENORIO, J.A.S.
FUNGARO, D.A.
Resumen
Biochar (BC) is a carbon-rich product obtained when biomass is thermally decomposed at relatively low temperatures (under 700??C) and limited supply of oxygen in a process called pyrolysis. Because of its porous structure, charged sur-face and surface functional groups, BC exhibits a great potential as an adsorbent. Its characteristics strongly depend on the feedstock and the pyrolysis conditions. The aim of this study was to evaluate the adsorption potential for the remov-al of uranium, U(VI) from aqueous solutions using BC obtained through slow pyrolysis of the macauba coconut endo-carp. The influence of parameters such as pH, sorbent dose and initial concentration on the adsorption of U(VI) was investigated. The BC obtained at 350 ??C (BC350) presented a removal percentage of approx. 80 %, demonstrating its applicability for the treatment of uranium contaminated aqueous solutions.