Application of Biochar for the Restoration of Metal(loid)s Contaminated Soils

Biochar has recently aroused great interest for the restoration of contaminated soils since it improves soil properties and induces immobilization pollutants. This study evaluates use biochar from plant pruning, applied as an amendment, immobilizing metal(loid)s in a highly well reducing phytotoxicity these pollutants by promoting natural revegetation. For this purpose, bioassay with Trifolium pratense L. was used to test effectiveness amendment greenhouse conditions. Three treatments were carried out including (RA), amended at different dosage: 4% (RA4B) 8% (RA8B). A non-contaminated (NC) nearby area not affected contamination control. The results show that increased pH several units depending on dose used, being most effective one. also reduced soluble bioavailable forms Zn Cu. Likewise, significantly reduced, seed germination biomass growth values similar non-polluted soil. In light obtained, evaluation bioremediation potential under field conditions can be considered.