Ultrases, kavitasyon etkisiyle katı-sıvı sistemlerinde birçok yararlı etkiler göstermektedir. Bu çalışmada, ultrases yardımıyla KOH emdirilmiş fındıkkabuğu ile hazırlanan aktif karbonların yüzey alanlarının modelleme ve optimizasyonu araştırılmıştır. Deneyler istatistiksel olarak tasarlanmış ve parametrelerin etkisi incelenmiştir. Hazırlanan aktif karbonların yüzey alanları ile ilgili parametreler arasında varyans analizi yardımıyla istatistiksel bir model elde edilmiştir. Bu model, matlab kısıtlamalı optimizasyon programıyla optimum proses şartlarının elde edilmesi için kullanılmıştır.
The optimization of the adsorption of Ni 2+ from aqueous solutions was investigated by ultrasound-assisted preparation of activated carbon from alkaline impregnated hazelnut shells. To investigate the effects of independent variables such as particle size, ultrasonic power density, impregnation ratio, impregnation time, activation temperature and activation time on the adsorption of Ni 2+ from aqueous solutions, the experiments were designed by using the fractional factorial and central composite design method. Furthermore, the results were modelled statistically and optimized by using constrained optimization technic by means of the Matlab. The ultrasonic irradiation used for the alkaline impregnation into hazelnut shells was found to be beneficial for preparation of activated carbon for use as adsorbents to remove Ni 2+ from aqueous solutions.
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