CD Skripsi
Isotherm, Termodinamika Dan Kinetika Adsorpsi Logam Cu Menggunakan Adsorben Serbuk Kulit Udang
ABSTRACT
Most of the shrimp shell waste consists of chitin compounds which can be converted
into chitosan. The use of chitin and chitosan are mainly as chelating agents,
emulsifiers and adsorbents. In this study, shrimp shell waste was used directly as an
adsorbent on Cu metal, without changing the shrimp shells to chitin or chitosan.
Shrimp shell waste at the initial stage was treated including washing, drying,
refining, sieving and being activated using 0.5 M HCl solution. The activated shrimp
shell powder was then used as an adsorbent against Cu metal, by varying the
temperature (30, 40 and 50 oC) and mass of the adsorbent (2,5 ; 5,0 and 7,5 grams) .
The maximum adsorption capacity occurs at a temperature of 50oC and an adsorbent
mass of 7.5 grams with a capacity of 93.59%. The isotherm model of the adsorption
process follows the Harkins Jura isotherm model with a R2 value of 0.9891. The
kinetics of the adsorption process followed the pseudo second order kinetics with an
adsorption rate constant of 0.019 and an R2 value of 0.9974. The adsorption heat
capacity (ΔH) is 7.90 kJ / mol and is endothermic.
Key words: adsorption, activation, shrimp shell waste, Cu metal
Tidak tersedia versi lain