TITLE:
Wastewater Treatment Trial by Double Filtration on Granular Activated Carbon (GAC) Prepared from Peanut Shells
AUTHORS:
Mafory Bangoura, Alhassane Diami Diallo, Ahmed Sékou Diallo, Cellou Kante
KEYWORDS:
Wastewater Treatment, Activated Carbon
JOURNAL NAME:
Green and Sustainable Chemistry,
Vol.13 No.1,
February
6,
2023
ABSTRACT: The aim of this work is the purification of
wastewater by double filtration on granular activated carbon prepared from
peanut shells. The samples of carbonized peanut shells were activated with 35%
sulfuric acid and finally, we proceeded to the purification tests on double filtration of
wastewater. Granular activated carbons (GAC) were very effective for the
treatment of turbidity, dissolved oxygen, suspended solids, iron, COD and BOD5
but the best results were observed with nitrite, nitrate and phosphate.
However, the second filtration was the most efficient while the lowest rates
were observed for pH (17.91% on average), and conductivity (29.71% on average). In addition, this
work has allowed increasing the dissolved oxygen by more than 50.16% at the exit of the first filter
and more than 105.36% at the exit of the second filter. This study shows that
granular activated carbon prepared from peanut shells could be a credible
alternative for developing countries in the control of pollution and
environmental protection.