The purpose of this study was to examine the performance of the wastewater treatment system that uses an SBR 9.4 m / m in vertical sewage flow. Using synthetic wastewater COD 256,73 ± 82,98 mg per liter. The retention time of 4, 6, and 8 hours in a reactor containing 9.4 liters. An anaerobic biological DO = 1,75 ± 0,44 intermediary biological condition KO's chest Zick DO = 0.53 ± 0.25 and aeration DO = 5.83 ± 0.43, a volume of 2.35, 2.35 and 4.7 liter cent. 25, 25 and 50. The study was divided into two phases, the first walk in to the system to the conditions fixed by the system for a period of 26 days was effective treatments COD retention time 4. , 6 and 8 hours worth of 73 ± 12.2, 72 ± 13.2, and 66 ± 16.6, respectively, effective treatments are available BOD of 88.7 ± 5.61, 83.2 ± 10.78, and 84.3 ± 6.34, respectively. During the second when the system is fixed in the first system, a further seven days (168 hours) were sampled every cycle (Cycle), and the third phase of the reactor showed that the treatment efficiency of COD. Each phase of the reactor is a huge change can not conclude that all three during that period any good, but that the treatment efficiency of COD, the retention time of 4, 6 and 8 hours a percent. 70.37 ± 12.39%, 75.21 ± 9.69%, and 75.16 ± 14.33%, respectively,
from studies of the efficacy of wastewater treatment with SBR, which is an effective therapy in a community where water flows vertically in the second period. found that the treatment efficiency of COD during the two is more effective than the first period.
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