Sorption treatment of water from chromium using biochar material

Sorption treatment of wastewater from chromium compounds is a current and actively developing area research. However, there lack sorbents combining high efficiency economic affordability with the possibility application in industrial conditions. In this work, sorption properties biochar material “EcoChar,” obtained as result fast pyrolysis agricultural poultry waste, were studied relation to removal trivalent ions, basic thermodynamic parameters process, which type strong chemisorption, determined. Based on IR spectra sorbent material, formation chelate complexes by hydrolyzed ions involvement carboxylic groups simple ether bonds suggested. Using Langmuir model, values capacity found as, 68.8 ± 0,2 mg Cr(III)/g 87.5 0,3 at 298 318 K, respectively. These values, are much higher than those their corresponding waste counterparts, make use an adsorbent advantageous for Cr(III) containing acidic wastewater.