Surface Charge Effects on Adsorption of Solutes by Poplar and Elm Biochars

Elm and poplar are two tree species that can provide a large amount of low-value feedstock for biochar production due to their rapid growth rate (poplar), susceptibility disease and/or infestation (both elm poplar). Biochar has been studied recently as filtration medium water purification, it provides renewable alternative activated carbon. In this work, the adsorption efficiency biochars made from function pyrolysis temperature were by ultraviolet (UV) dyes with positive, neutral, negative charges determine what factors had greatest effect on these dyes. It was found conductivity increased temperature, factor more important than surface area in terms adsorbing charged Both not effective neutral This research demonstrates adsorb (either positively or negatively) solutes efficiently uncharged ones because they carry both themselves. Therefore, would make excellent candidates media contaminants.