Solidification of Zeolite and Toxic Element (Cs) as a Waste CeramicComposite

Solidification of Zeolite-Cs and weak cullet mixtures as a waste ceramicin the pellet form. The simulation waste contain the Cs toxic element withinitial concentration 550 ppm, pH 7, in the 15 ml volume were contacted with0.3 gram of Zeolite-Na in the time 60 second, it was found Zeolite-Cs. Theconcentration of Cs in waste after was contacted with zeolite-Na, 90 % of Cscan be exchanged and then formed zeolite-Cs. Zeolite-Cs and weak cullet weremixture on the optimal composition (10 : 90) % were made a pellet form byhydraulic press, and then it was solidification process in the furnace on 800oC and 3 hours in the time, to formed a waste ceramic. The quality of wasteceramic was testing by XRD for mineralogy test, AAS for composition test, 0.1N NaOH for leaching test and hydraulic press for pressure test. The mineralcomposition of waste ceramic was consist of mordenite and clinoptilolite. Thechemical composition of those ceramic was contain of Mn 0.16 %, Cu 7.62 %, Fe0.97 %, K 2.24 %, Si 38.54 %, Ca 3 %, Mg 1 %, Al 2.9 % dan Cs 260 ppm. Toxicmetal of Cs. was not leached by water and 0.1 N NaOH. Zeolite-Cs ceramic haspressures proof < 2.5 kN. (author)