Effect of Increasing Organic Loading Rate on the Performance of Conventional and Modified Sequencing Batch Reactors.

Abdelaziz, Hossam ElDin; Abdo Allaa El Din, Moharram Fouad; Abd El Hakim, Mohamed Ahmed

doi:10.21608/bfemu.2020.118639

Effect of Increasing Organic Loading Rate on the Performance of Conventional and Modified Sequencing Batch Reactors.

Document Type : Research Studies

Authors

¹ Demonstrator., Delta Higher Institute for Engineering and Technology. Department of Public works, civil engineering, Engineering, Mansoura, Egypt

² Head of Public Works Eng. Department, Faculty of Engineering, Mansoura University

³ Associate Professor., Public Works Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

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.

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