Optimasi Tanah Napa sebagai Adsorben Ion Logam Kromium (IV)
Abstract: A study concerning
the determination of the optimum conditions for the adsorption of chromium (VI)
by tanah napa adsorbent from Aripan, Solok. Tanah napa containing high silica
and alumina are 63.20% and 16.55%, levels of silica and alumina in the tanah napa
almost the same levels with natural zeolite, which can be used as adsorbent. In
this research studied the influence of various parameters that affect the
capacity of tanah napa uptake to Cr(VI), the pH of the solution, the initial
concentration of solution, adsorbent particle size, heating temperature
adsorbent and eluent flow rate. The results of this study indicate that the
optimum pH is 4, the optimum initial concentration of 250 mg/L, while the
particle size and adsorbent optimum heating temperature is 850 mm and 125°C,
and the optimum flow rate is 20 drops/min. Using the Langmuir adsorption
isotherm equation obtained maximum absorption capacity of the tanah napa to
Cr(VI) that is equal to 0.911 mg/g.
Penulis: Mawardi Anwar, Rahmi
Khairun Nisa
Kode Jurnal: jpkimiadd130470
