A new methodology for mercury(II) bioelimination is proposed.
Agricultural residues are used as adsorbent, and the biomass shows high density of strong mercury chelating.
Biomass can also efficiently remove 99.4% mercury (II) within a few minutes.
Mercury determination was carried out through potentiometry using an ISE built and optimized.
Presents a new perspective for removing mercury(II) from contaminated water for environmental remediation.