Zero-valent　iron　(ZVI)　was　immobilized　onto　surfactant-modified　zeolites　(SMZ)　using　calcium　alginate.　Scanning　electron　microscopy　showed　that　ZVI　powder　was　uniformly　immobilized　on　the　surface　of　the　SMZ.　The　added　ZVI　powder　resulted　in　enhanced　dichromate　removal　efficiency　and　the　heterogeneous　surface　of　the　composite.　The　adsorption　of　dichromate　onto　the　ZVI-SMZ　composites　fitted　well　to　a　pseudo-second-order　model　and　the　Langmuir　adsorption　isotherm.　The　maximum　dichromate　adsorption　capacity　of　the　composite　was　2.49　mg/g　at　the　temperature　of　293　K.　Higher　removal　efficiency　was　obtained　at　pH　lower　than　7.　X-ray　photoelectron　spectrometry　revealed　that　the　composites　combined　the　strong　reductive　quality　of　ZVI　and　superior　adsorption　of　SMZ.