CD Skripsi
Pengaruh Konsentrasi Dan Waktu Aktivasi Spent Bleaching Earth (Sbe) Sebagai Adsorben Pada Proses Adsorpsi Ion Logam Cu2+
ABSTRACT
Spent bleaching earth (SBE) is a solid waste produced from the palm oil
bleaching industry (CPO). Principally, the SBE can be regenerated and reused as
an adsorbent. This research aims to study the effect of variations in HCl
concentration and contact time of activation on iodine numbers and surface area
of SBE and study the effect of mass variations of Spent Bleaching Earth without
activation and activation on the adsorption process of Cu2+ metal ions. In this
study the HCl concentrations used were 2, 3 and 4% with activation times of 45,
60 and 75 minutes. The results showed that the adsorbent with a concentration of
4% and the activation time for 75 minutes had the largest iodine number and
surface area of 403.2 mg / g and 746.91 m2 / g. Based on the results showed the
best adsorption capacity on adsorbents without activation or activation occurs at
a mass of 9 grams, which is equal to 19,627 mg / g and 19,723 mg / g. The
characterization used for adsorbents without activation and activation is FT-IR
spectrophotometer. FT-IR analysis shows that SBE without activation and SBE
are activated there is a shift in the wave number and the breakdown of functional
groups. This wave number shift shows that the functional groups contained in the
SBE affect the activation process of HCl.
Keywords: Adsorption, activation, Cu2+, spent bleaching earth (SBE).
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