A　recyclable　copper　removal　adsorbent　was　developed　from　diatomite　and　aluminum　sludge　composite　materials.　The　effects　of　different　formulas　on　the　adsorption　of　Cu2+　under　different　conditions　were　discussed.　The　properties　and　microstructures　of　the　samples　were　characterized.　The　results　showed　that　the　optimum　pH　value,　contacting　time　and　raw　materials　proportion　for　copper　removal　are　6,　90　min　and　40:60　(sludge:　diatomite),　respectively.　The　copper　removal　capacity　could　reach　0.46　mg/g　at　the　initial　copper　concentration　of　5　mg/L.　There　was　no　change　in　the　composition　of　crystal　phase　before　and　after　copper　removal,　so　physical　adsorption　was　dominant　during　the　adsorption　process.