Removal of Pb (II) from aqueous solution with Reactive Red 198 and carbonization of sugar beet pulp with citric acid
Abstract
In this study, a high
carbon activated carbon was obtained from the sugar beet pulp by carbonizing
with concentrated citric acid. The main purpose of this study is to evaluate
the obtained catalyst for heavy metal removal in waste water. The adsorption
studies of a basic dye Red 198 on the sugar beet pulp (SBP) were investigated. Balance
and kinetic studies, carbon adsorbents obtained from sugar beet pulp were used
for balance and kinetic studies. With carbonization of sugar beet pulp with
citric acid was studied to remove Pb (II) from Reactive Red 198 dye aqueous
solutions. Adsorption in researchswere performed to investigate the effects of solution
concentration (20-30-40 mg/L), temperature (25,35,45°C) and pH (3-6-9) on the separation of Reactive Red 198 aqueous solution
from beet pulp. Carbon balance adsorbent obtained from sugar beet pulp was done
in equilibrium and kinetic studies. Langmuir and Freundlich isotherm models work
were done to be appropriate for Reactive Red 198 adsorption. The maximal lead
adsorption capacity obtained from Langmuir isotherm at pH 8 and 25°C 837.53 mg/g. Adsorption of Pb (II) is an endothermic process. The
results showed that Reactive Red 198 from the beet pulp is an inexpensive and
efficient adsorbent for the removal of aqueous solutions.
Keywords
Sugar beet pulp (SBP),Carbonization,Pb (II) adsorption,Citric acid,Reactive Red 198
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