A　novel　granular　adsorbent　(GA)　consisting　of　spheres　with　size　ranging　from　1.6　mm　to　1.8　mm,　was　made　of　iron-containing　backwashing　residual　sludge.　The　adsorbent　was　characterized　by　SEM　(scanning　electron　microscopy),　XRD　(X-ray　diffraction),　and　BET　(Brunauner-Emmett-Teller　analysis).　Laboratory　experiments　including　batch　and　column　studies　were　also　carried　out　to　survey　the　adsorption　ability　of　GA　for　As(V)　removal.　The　results　showed　that　GA　was　mainly　amorphous　with　a　large　specific　surface　area　(110.30m(2)/g)　and　rich　in　iron.　Langmuir　model　gave　a　better　representation　than　that　of　Freundlich　for　As(V)　adsorption　behavior,　with　the　maximum　adsorption　capacity　14.95　mg/g,　outperforming　most　of　reported　granular　sorbents.　Pseudo-first　order　model　and　pseudo-second　order　model　were　suitable　to　describe　the　kinetic　curves.　The　results　obtained　from　the　thermodynamic　parameters　indicated　that　the　adsorption　of　As(V)　by　GA　was　feasible,　endothermic　and　spontaneous.　Arsenic　adsorbed　GA　was　regenerated　by　washing　4　times　with　1%　NaOH,　resulting　in　a　decrease　of　adsorption　capacity　by　about　35%.　A　fixed　bed　column　study　showed　that　about　210　and　1200　bed　volumes　of　influent　with　150　mu　g/L　As(V)　were　respectively　treated　before　the　concentration　of　effluent　reached　10　and　50　mu　g/L.