Dosage Effect of Biocoagulant from Jackfruit Seed (Artocarpus heterophyllus L.) on the Wastewater Treatment of Chemical Laboratory

Abstract

Biocoagulation process using jackfruit seed (Artocarpus heterophyllus L.) with 150 mesh as a biocoagulant on the wastewater treatment of chemical laboratory has been carried out. The jackfruit seed in the doses of 0.25, 0.50, 0.75, 1.0, dan 1.25 g/500 mL was used to treat the wastewater of the chemical laboratory. The effectiveness of the biocoagulation process was evaluated in terms of pH, electrical conductivity (EC), total dissolved solids (TDS), turbidity (NTU), and light intensity (Lux). The wastewater of the chemical laboratory sample displayed initial parameters of 3.2 (pH), 0.426 mS/cm (EC), 208.33 mg/L (TDS), 3.33 NTU, dan 873.67 Lux (light intensity). This study showed that the biocoagulation process in the dosage of 1 g/500 mL had decreased those parameters into 3.7 (pH), 0.253 mS/cm (EC), 159.67 mg/L (TDS), 0.99 NTU, and 833.7 Lux (light intensity). It is concluded that the biocoagulation process with jackfruit seeds can improve the parameters of wastewater treatment.