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Mindriany Syafila

Abstract

An aerobic sequencing batch reactor (SBR) was used to investigate the optimum organic concentration and the ratio of fill – react time. The synthetic wastewater used had approximately COD of 10,000 mg/l; 8000 mg/l; 4000 mg/l; and 2000 mg/l, in the room temperature between 23 – 26 °C. The ratio of fill – react time was (2:2) hours, (2:4) hours, and (2:8) hours.  The results showed that the optimum COD reduction of 70.62% was achieved in the influent concentration of approx. 4000 mg/l COD with the fill-react ratio of (2:2) hours.

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