Batch and fixed bed sorption of low to moderate concentrations of aqueous per- and poly-fluoroalkyl substances (PFAS) on Douglas fir biochar and its Fe3O4 hybrids

Prashan M. Rodrigo, Chanaka Navarathna, Michael T.H. Pham, Sarah J. McClain, Sean L. Stokes, Xuefeng Zhang, Felio Pérez, Sameera R. Gunatilake, Akila G. Karunanayake, Renel Anderson, Rooban Venkatesh K.G. Thirumalai, Dinesh Mohan, Charles U. Pittman, Todd Mlsna