Physico-chemical Study of the Adsorption of Methyl Orange from Water by Biosorbent and Activated Carbon Based on Peanut Shells

The objective of this work is to study the elimination Methyl Orange (MO) contained in wastewater, by adsorption on four different adsorbents, produced from peanut shells. To achieve this, various adsorbents were first produced. native biosorbent (BN) was obtained drying, crushing and sieving activated (BA) chemical activation with ortho-phosphoric acid (H3PO4) 10% BN. carbons (CA1 CA2) pyrolysis at 650°C BN BA, respectively. products characterized experiments determine effects pH, contact time, their masses concentration methyl orange its removal carried out. results show that thermal has multiplied surface area 11, while specific 8. Both treatment (chemical thermal) have also tripled micropores All a maximum capacity pH6. At amount MO adsorbed decreases increase concentration, regardless adsorbent used. Likewise, equilibrium reached 3 min adsorbents. pseudo second order model describes kinetics Ultimately, CA1 found be most effective removing wastewater.