Biosolids-based catalyst for oxidative desulphurization of drop-in fuels derived from waste fats

•Successful development of a biosolids-based catalyst for biofuel desulphurization.•Catalyst achieved > 99% desulphurization using a model solution of benzothiophene.•Stable catalyst performance even after 4 catalytic cycles at 80 °C and 4 h.•Successful desulfurization of a renewable hydrocarbon stream (87.7 ± 3.0%).