The wastewater treatment procedure for medium rank coal involves the use of coagulation,flocculation technology with bio coagulants to effectively lower the level of pollutants. This approach utilizes Moringa oleifera seed powder as the primary bio coagulant, along with papaya seeds (Carica papaya Linn) and (Ambon banana peel waste (Musa paradisiaca var) as a secondary bio coagulant, which is m…