Clay is one of the abundant natural resources and have not been used optimally. Value for clays can be improved further. Utilization of clay as a source of liquid coagulant is one way of increasing value of the clay. The liquid coagulant can be used for water purification in coagulation-flocculation process. The aim of research was to make liquid coagulant from clay peat Kampung Pinang with theā¦