Cengar natural clay has been used as a raw material for the synthesis of liquid coagulant and adsorbent. Cengar clay was containing metal oxides as a source of raw material liquid coagulant and adsorbent. Liquid coagulant was obtained through the calcination stage of clay at the temperature of 700 °C for 3 hours and leaching of 100 °C for 2 hours using 0.4 mol H2SO4. H2SO4 solution was used t…