METHOD FOR PREPARATION OF ADSORBENT USING VERMICULITE WITH COPPER OXIDE DEPOSITED

摘要

PURPOSE: A manufacturing method of absorbent and the absorbent using vermiculite manufactured by the same are provided to facilitate an absorbing process with respect to volatile organic compounds using vermiculite and copper oxides. CONSTITUTION: A manufacturing method of absorbent includes the following steps: copper oxides are deposited on the surface of vermiculite; moisture is evaporated from the vermiculite with the deposited copper oxides; and the vermiculite with the deposited copper oxides is plasticized. The drying process is implemented at a temperature between 80 and 85 deg C using an evaporator. The moisture content of the vermiculite after the drying process is less than or equal to 10wt%. The plasticizing process is implemented in the air at a temperature about 400 deg C for about 4 hours. [Reference numerals] (AA) Toluene concentration(ug/m^2); (BB) Toluene removal rate(%); (CC) After 30 minutes; (DD) After 90 minutes; (EE) After 150 minutes; (FF) After 210 minutes; (GG) After 270 minutes; (HH) After 330 minutes; (II) After 390 minutes; (JJ) Elapsed time; (LL) Absorbed toluene concentration(ug/m^2); (MM) Toluene removal rate(%) before treatment; (NN) Toluene removal rate of CuO 2% deposited vermiculate(%); (OO) Toluene concentration of vermiculate discharged side before treatment(ug/m^2); (PP) Toluene concentration of CuO 2% deposited vermiculate discharged side(ug/m^2); (QQ) Toluene removal rate of CuO 1% deposited vermiculate(%); (RR) Toluene concentration of CuO 1% deposited vermiculate discharged side(ug/m^2)