[O-05] Poster presentations by senior high school students

[O05-P08] Removing heavy metal ions from waste water using peat repeatedly.

*Nanase Mibu¹, *Keiichi Sato¹, *Michiru Imai¹ (1.Tokyo Metropolitan Tama High School of Science and Technology)

Keywords:peat, heavy metal, adsorption, lead, Reuse method, water pollution

Peat is widely distributed over the world.
However, peat tends to contain a lot of heavy metals, and its treatment has a problem.
In the previous research, it was found that humic acid contained in peat adsorbed heavy metal ions.
Therefore, we succeeded in treating humic acid after adsorption with acid and separating lead.
When the lead solution was passed through the treated humic acid, the lead ion concentration in the solution decreased.
From this, it is considered that peat can be recycled by extracting lead ions, and the residue can function as a lead removal filter.