Additional file 1 of Exploring the recycling of bioleaching functional bacteria and sulfur substrate using the sulfur-covered biochar particles

Additional file 1: Fig. S1. Amount of heavy metal leached from the sediment during the bioleaching process. Fig. S2. Infrared spectrum analysis of bamboo biochar. Fig. S3. Amount of heavy metal leached from the sediment during the second and the third round of bioleaching.