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무기물계 폐기물로 합성한 제올라이트의 코발트, 니켈, 구리 이온의 회수 성능
The Recovery Performance of Co, Ni, and Cu Ions Using Zeolites Synthesized from Inorganic Solid Wastes
이창한 ( Chang Han Lee )
UCI I410-ECN-0102-2013-530-002172203

In this study, zeolites were synthesized by a fusion and a hydrothermal methods using a coal fly ash and a waste catalyst. The recovery performance of metal ions on the structure property of synthetic zeolites was evaluated as comparing the adsorption kinetics (Lagergen 2nd order model) and isotherm (Langmuir model) of Co2+, Ni2+, and Cu2+ ions. The synthetic zeolites (Z-C1 and Z-W5) were similarly assigned to XRD peaks in a reagent grade Na-A zeolite (Z-WK: Na12Al12Si12O4827.4H2O). Adsorption rates of Z-W5 and Z-C1 were in the order of Cu2+ > Co2+ > Ni2+ and Ni2+ > Cu2+ > Co2+, respectively. They had influenced upon structure properties of zeolite. Selectivities of metal ions and maximum equilibrium adsorption capacities, q(max), in Z-C1 and Z-W5 were in the order of Ni2+(127.9 mg/g) > Cu2+(94.7 mg/g) > Co2+(82.6 mg/g) and Cu2+(141.3 mg/g) > Co2+(122.2 mg/g) > Ni2+(87.6 mg/g), respectively. The results show that the synthetic zeolites, Z-C1 and Z-W5, are able to recover metal ions selectively in wastewater.

[자료제공 : 네이버학술정보]
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