Browsing by Author "M., K. Bechki1,2*"

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    PREPARATION OF CHEMICALLY ACTIVE CARBONS BY HYDROCHLORIC ACID BASED ON NUT SHELLS
    (جامعة الوادي university of eloued, 2018-05-01) M., K. Bechki1,2*; A., Lounas1; L, Bechki2,; , Zerrouk3, L; , Bensaci H
    The objective of this study is the valorization of the agricultural waste (nut shells) by preparing an active carbon from these wastes using the activating agent HCl 37%. The yields of the prepared active carbons were in the range 27.81 and 31.02 %. The influences of calcination temperatures in the range (550°C, 650°C and 750°C) on the adsorbent properties were studied. The overall results obtained indicated that the best maximum adsorption capacity of phenol was 26.31 mg/g, and the low capacity was 20.83 mg/g. In addition the maximum specific surface was 87.89 m²/g and the minimum was 69.588 m²/g respectively for the samples: CA0-550, CA1- 650 and CA2-750.