Synthesis Of Sawdust Xanthate Salts And Its Applicationin Absorption Of Heavy Metal Ions In A Aqueous Solutions

In this paper the three kinds of sawdust xanthate salts(SCX-g-AM,SCX-g-AN, SCX-g-AA) were first prepared based on the graft andsulfonation reaciton theory of sawdust and acrylamide，acrylonitrile，acrylic.These derivatives were employed as a new adsorbent used forremoving heavy metals ions in aqueous solutions Compared withsawdust.The procedures and results are shown as the following.The products are characterized by FTIR、BETand SEM,Results:sawdust xanthate salts was successfully synthesized. The use the singlefactor experiment to study the temperature, pH, time, the concentration ofthe ions and dosing quantity of three kinds of sawdust xanthate salts usedin treating of manganese, nickel, chromium, cadmium four kind of heavymetal ion from the waste water. And use of orthogonal experiment to findpairs of heavy metal ion removal rate is relatively high synthesisconditions of the sawdust xanthate salts. It is shown from the experimentresults that:（1） Under the best reaction conditionsthe, treatment withmanganese nickel, mixed ion wastewater, the saturated adsorption ofnatural sawdust is0.6mg/g; the saturated adsorption of SCX-g-AM is6.06mg/g; the saturated adsorption of SCX-g-AN is5.10mg/g; thesaturated adsorption of SCX-g-AA is1.55mg/g。（2）Treatment with manganese nickel, mixed ion wastewater, thesaturated adsorption of natural sawdust is0.63mg/g; the saturated adsorption of SCX-g-AM is6.96mg/g; the saturated adsorption ofSCX-g-AN is15.62mg/g.Among them, the adsorption effect of SCX-g-AN on chrome,cadmium, manganese, nickel metal ion is the best; SCX-g-AM is thesecond.And the adsorption effect of all of the sawdust xanthane salts ismuch higher than the natural sawdust.