Sequencing Batch Reactor to Treatment Tofu Wastewater Using Impeller Addition

• Autorzy: Hendrasarie Novirina , Fadilah Kabul , Ranno M. R.

Identyfikatory

DOI

10.12911/22998993/153491

• Języki publikacji: EN

Abstrakty

EN

The characteristics of the wastewater produced by the tofu industry are high viscosity, slipperiness, and foaming resulting from the continuous fermentation of the tofu bacteria. This made it difficult to reduce the organic content of tofu wastewater, namely biological oxygen demand (BOD₅), phosphate (PO₄), and Total Nitrogen. A wastewater processor that is designed to handle dense and slippery tofu wastewater is known as a Sequencing Batch Reactor. The impeller is used to create turbulent flow, resulting in more evenly distributed DO, which is difficult to distribute due to the viscous tofu wastewater. The SBR was operated with a hydraulic retention time (HRT) of 24, 36, and 48 hours and an impeller stirring speed of 50, 100, and 150 rpm. The results of the research found that there was an effect on the stirring speed of the impeller and that the low stirring speed of the impeller was not optimal. HRT that was regulated in the SBR cycle has affected the performance of the bacteria. Pseudomonas sp. was found in this study and Bacillus sp., which can degrade up to 90% of phosphate and nitrate.

Słowa kluczowe

EN

sequencing batch reactor; SBR; stirring speed of impeller; degradation of suspended bacteria

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2022
• Tom: Vol. 23, nr 11
• Strony: 158--164
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Hendrasarie Novirina

• Environmental Engineering, University of Pembangunan Nasional “Veteran” Jawa Timur, Raya Rungkut Madya Str, Surabaya City 60294, Indonesia

• https://orcid.org/0000-0002-7651-1558

autor

Fadilah Kabul

• Environmental Engineering, University of Pembangunan Nasional “Veteran” Jawa Timur, Raya Rungkut Madya Str, Surabaya City 60294, Indonesia

autor

Ranno M. R.

• Environmental Engineering, University of Halu Oleo, Green Earth Campus Tridharma, Anduonohu, District. Kambu, Kendari City 93232, Southeast Sulawesi, Indonesia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).