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Effect of increasing organic loading rate on the performance of conventional and modified sequencing batch reactors. (Dept. C)

Hossam Eldin A. Abdelaziz, Muharram Fouad Abdo Allaa El Din, Mohamed Ahmed Abd El Hakim
MEJ. Mansoura Engineering Journal , Volume 45, pp 1-6; doi:10.21608/bfemu.2020.118639

Abstract: A modified sequencing batch reactor (MSBR) was developed by installing six fiber vertical plates of specific surface area of 180 cm2/ L in conventional sequencing batch reactor (SBR), which designed for supporting the biofilm formation and increasing the system efficiency. In this study, the effect of increasing the organic loading rate of 281.25 g COD/m3. d by 33%, 67%, and 100 % on the performance of SBR and MSBR was investigated. The effluent BOD5, COD and TSS of the MSBR at high organic loading rate was 20, 32 and 27 mg /L, respectively, while for conventional SBR was 34, 58 and 45 mg /L, respectively. The total bio-sludge of MSBR was more than that of conventional SBR by about 30% resulting in a reduction of the F/M value. The sludge volume index (SVI) in MSBR was lower than that of conventional SBR by about 33%. MSBR system was able to treat municipal wastewater with high performance.
Keywords: sludge / batch reactor / organic loading rate / SBR / sequencing batch

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