Correction published on 14 March 2022, see
Water 2022, 14(6), 901.
Effect of the Progressive Increase of Organic Loading Rate in an Anaerobic Sequencing Batch Reactor for Biodiesel Wastewater Treatment
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1
Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Fortaleza 60020-903, Brazil
2
Department of Agricultural Engineering, Federal University of Viçosa, Viçosa 36570-900, Brazil
3
Department of Hydraulics and Sanitation, University of São Paulo, São Carlos 13560-970, Brazil
*
Author to whom correspondence should be addressed.
Academic Editors: Yung-Tse Hung, Hamidi Abdul Aziz, Issam A. Al-Khatib, Rehab O. Abdel Rahman and Tsuyoshi Imai
Water 2022, 14(2), 223; https://doi.org/10.3390/w14020223
Received: 16 December 2021
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Revised: 7 January 2022
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Accepted: 9 January 2022
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Published: 12 January 2022
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Corrected: 14 March 2022
(This article belongs to the Special Issue Water Quality Engineering and Wastewater Treatment Ⅱ)
The wastewater from the biodiesel industry is an environmental problem, and from a sanitation resources perspective, the anaerobic sequencing batch reactor (ASBR) is an interesting alternative for wastewater treatment. A better understanding of ASBR operation behavior under the progressive increase of the organic loading rate (OLR) is crucial for upscaling. The objective of this study was to monitor an ASBR operating with an OLR ranging from 1.3 to 9.3 kgCOD m−3 d−1. The average chemical oxygen demand (COD) removal efficiencies of the ASBR were 52, 41, 47, and 11% for phases 1, 2, 3, and 4, respectively. The apparent kinetic coefficient, i.e., the rate of degradation of organic matter, was between 0.10 and 1.80 h−1, considering the kinetic model that considers the residual substrate concentration, which was the one that best fit the obtained data. The progressive increase in applied OLR modified the microbial biomass diversity, which in turn influenced the degradation kinetics of the organic matter. In addition, the values of the applied OLR of 5.1 kgCOD m−3 d−1 and a food to microorganism ratio (F/M) of 0.6 kgCOD kgVSS−1 d−1 were shown to be limiting values that promoted the overload of ASBR.
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Keywords:
glycerol; ASBR reactor; progressive increase in OLR
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MDPI and ACS Style
Pereira, E.L.; Borges, A.C.; da Silva, G.J. Effect of the Progressive Increase of Organic Loading Rate in an Anaerobic Sequencing Batch Reactor for Biodiesel Wastewater Treatment. Water 2022, 14, 223. https://doi.org/10.3390/w14020223
AMA Style
Pereira EL, Borges AC, da Silva GJ. Effect of the Progressive Increase of Organic Loading Rate in an Anaerobic Sequencing Batch Reactor for Biodiesel Wastewater Treatment. Water. 2022; 14(2):223. https://doi.org/10.3390/w14020223
Chicago/Turabian StylePereira, Erlon L., Alisson C. Borges, and Greicelene J. da Silva. 2022. "Effect of the Progressive Increase of Organic Loading Rate in an Anaerobic Sequencing Batch Reactor for Biodiesel Wastewater Treatment" Water 14, no. 2: 223. https://doi.org/10.3390/w14020223
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