Removal of Metals and Dyes in Water Using Low-Cost Agro-Industrial Waste Materials

The pollution of water bodies due to the discharge effluents without treatment is a global problem. Therefore, different technologies have been implemented for removal contaminants from wastewater before final disposition. Among them, adsorption processes using residual biomasses are becoming very popular low cost and high availability adsorbents. Thus, in present work, synthesis modified biochar agro-industrial residues derived wheat-processing industry, as valorization alternative these residues, its use Cr (VI) methylene blue (MB) has analyzed. was prepared ramp function 5 °C/min until 250 °C 30 min. tests were developed batch system, mg adsorbent 10 mL solution. From SEM analysis, formation tubular cavities porous structure seen, caused by basic hydrolysis with KOH. tests, an capacity 12.98 mg/g 97.38% efficiency MB at pH noted, while (VI), it 11.35 85.15% 2. Freundlich’s model adjusted equilibrium data R2 > 0.9. maximum capacities monolayer 186,375 90.723 MB, according Langmuir’s model. kinetic study, can be said that process occurs chemisorption through electrostatic interaction ionic interchange between adsorbate adsorbent.