Clay is a natural mineral that is quite abundant in Indonesia, one of which is in Maredan Village, Kec. Tualang District. Siak, Riau Province and is a good adsorbent used to absorb organic compounds, dyes and heavy metal ions. This is because clay minerals have properties that are easy to swell, have a high cation exchange capacity, a large surface area, and are chemically and mechanically stab…