Sugarcane bagasse ash for fipronil removal

Abstract Adsorbents were studied for removing fipronil, a pesticide, from water. The study included sugarcane bagasse fly ash (SBFA) and traditional activated carbon. SBFA was characterized by X-ray fluorescence, specific mass determination, electron microscopy, particle size analysis zeta potential. results showed that, without prior treatment, its removal efficiency fipronil 80% with 2 h contact time, which is much higher than reported in other studies. SBFA's potential 8.02. In low pH systems, adsorption expected to be even more efficient, as the molecule presents both amino group (NH) Cl, may favor adsorbent surface interactions giving rise polar electrostatic forces. Freundlich model (R2 = 0.9290) describes data better Langmuir 0.8870). method developed low-cost enables reuse of industry waste.