Using Natural Biomacromolecules for Adsorptive and Enzymatic Removal of Aniline Blue from Water.

ABSTRACT: The present study investigated the adsorptive and enzymatic removal of aniline blue dye (AB) from aqueous solution using waxy riceprocessing waste (RW), peanut shell (PS), microbial waste of Aspergillus niger (MW) as low cost adsorbents, and laccase (Lac) as a biocatalyst. Commercial activated carbon (AC) was also employed to compare the adsorption performance with the three adsorbents. Dye removal was examined under various parameters in batch experiments. It was found that dye removal by RW and Lac was 89⁻94% noticeably better than that by MW and PS (20⁻70%). In any cases, AC produced the highest dye removal among the tested materials. The kinetics, isotherms, and thermodynamics were then analyzed to elucidate the adsorption process by the four adsorbents. The pseudo-second order kinetic

SUBMITTER: You X 

PROVIDER: S-EPMC6100329 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature