In　order　to　remove　the　tracebromate　in　drinking　water,　nanoscale　zero-valent　iron　supported　on　spherical　lignin　(LSAC-Fe)　was　synthesized　through　liquid-phase　reduction　method　using　spherical　cyanoethyl　lignin　as　raw　material.The　LSAC-Fe　was　characterized　by　field　emission　scanning　electron　microscopy　(FESEM),　X-ray　diffractometer　(XRD),　X-ray　photoelectron　spectroscopy　(XPS)　and　nitrogen　adsorption　(BET).　The　adsorption　effect　of　LSAC-Fe　on　BrO-3　under　different　conditions　was　investigated,　and　the　thermodynamic　adsorption　and　removal　mechanism　were　studied.　The　results　showed　that　the　nanoscale　zero-valent　iron　was　distributed　homogeneously　on　the　spherical　lignin,　and　LSAC-Fe　had　a　high　surface　activity.　The　removal　percentage　of　BrO-3　decreased　with　the　increase　of　the　initial　pH　of　the　solution　of　and　the　initial　concentration　of　BrO-3.　The　BrO-3adsorption　process　of　LSAC-Fe　was　the　endothermic　process,　and　the　temperature　rise　was　beneficial　to　the　adsorption　of　BrO-3　on　LSAC-Fe.　©　2018,　China　National　Pulp　and　Paper　Research　Institute(CNPPRI).　All　right　reserved.