| abstract |
The invention discloses a method for preparing an adsorbent by using straw, and specifically relates to the technical field of straw utilization. The adsorbent prepared by using corn straw has good adsorption effect on heavy metal ions such as Cd(II) and Pb(II). At the same time, its desorption rate is high and its renewable performance is strong. The sesame straw, mussel shell, and corn stalk are steam-activated and puffed, which can fully open their internal structure, which is conducive to the full immersion of yeast liquid, and then fermented. After fermentation, the structure of the raw material is porous, and the porosity is increased. Hardening the skeleton structure makes the material not only have better porosity and specific surface, but also better mechanical properties and improve its regeneration performance. |