Determination of the optimum organic coagulants dosage in tofu industrial wastewater treatment

Abstract The research aim was to analyze the optimum dosage of moringa seed and tamarind as an organic coagulant in removing tofu wastewater pollutants using coagulation, flocculation, sedimentation reactors. first step is manufacture by processing raw materials into powder filtered a 50 mesh filter dried. second determine 4 variations pH 5,6,7,8 NaOH solution, dosages obtained 2,3,4,5 gr/L. third stage experimental test squenching batch reactor (SBR) method with TSS COD parameter analysis. effects confirmed that had better ability than COD, highest percentage reduction at 3 gr dose seed. In addition, removal or most neutral 7-8. However, treatment either coagulation-flocculation-sedimentation one not able remove meet quality standards, so further needed.