Pollutant Levels Comparison in Tofu Industrial and Domestic Wastewater in Ternate City

Abstract

Tofu industry is one of the fast-growing industries in Indonesia and causes an increase in wastewater, especially in Ternate. The research purpose was determining a Comparison of pollutant levels in tofu industrial and Domestic Wastewater. The sample was 1 liter of tofu industrial and 1-liter domestic wastewater. The research type is analytic descriptive. The research was conducted at Chemistry laboratory, health polytechnic of ternate and university of Khairun. Test results of tofu wastewater showed that TSS parameters were 416 mg/L, TDS 1,389 mg/L, DO 4 ppm, pH 7 and BOD 62.8 mg/L. Meanwhile, Tests result of domestic wastewater shows that TDS 839 mg/L, TSS 379 mg/L DO 5.4 ppm, pH 10 and BOD 49.6 mg/L. In conclusion, tofu wastewater has worse quality compared to domestic wastewater. It is recommended that Tofu industry can take the initiative in treating the wastewater produced before disposing into the environment.