Granulation and Biodegradation by Microbial Species in Granular Sequencing Batch Reactor for Soy Sauce Wastewater Treatment

Harun, Hasnida; Anuar, Aznah Nor; Halim, Mohd Hakim Ab; Othman, Inawati; Rosman, Noor Hasyimah; Hamid, Nor Hazren Abdul; Ujang, Zaini; Loosdrecht, Mark van

doi:10.1007/978-3-030-39137-9_14

Cited by 3 publications

(2 citation statements)

References 67 publications

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“…These genera could contribute to the formation of aerobic granules as well as nitrogen removal through nitrification, denitrification and HNAD 51,52 . Dyadobacter also was detected (1.78%); 24 this genus is able to oxidize ammonia to nitrite 53 . Autotrophic nitrifiers AOBs and NOBs showed low relative abundance at 0.61% and 0.16%, respectively 24 …”

Section: Resultsmentioning

confidence: 99%

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Biological processes of nitrogen removal and modeling oxygen diffusion in flocculent sludge and in granular sequencing batch reactors

Bucci

Marin

Zaritzky

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND: Simultaneous nitrification-denitrification (SND) in biological wastewater treatment occurs under aerobic conditions in flocs and granules, exhibiting aerobic and internal anoxic zones; SND depends on dissolved oxygen concentration. Aerobic denitrification (AD) is an advantageous process because control of aeration is not required. In the present study, the effects of anoxic/aerobic conditions and size of microbial aggregates on the AD process were evaluated using sequencing batch reactors (SBR) with activated sludge (anoxic/aerobic SBR AS ) or aerobic granules (SBR AG ).RESULTS: Nitrogen mass balances were used to estimate nitrogen assimilation, nitrification and denitrification. An oxygen diffusion model was proposed to evaluate oxygen profiles in the microbial aggregates determining the contribution of AD on nitrogen removal. At COD:N ratio = 100:10, fully aerobic biomass was predicted for all flocs in SBR AS and for 82% of the granules in SBR AG . In SBR AS , intracellular carbon storage was favored in the anoxic phase; nitrification was followed by AD, achieving 67% inorganic nitrogen (Ni) removal. In SBR AG , SND was 55% and Ni removal 51%. For SBR AG , genomic analysis described microbial community and nitrogen metabolic pathways were proposed. Heterotrophic nitrification-aerobic denitrification (HNAD) was proposed as the main nitrogen removal process. At COD:N = 100:15, 80% of the granules developed internal anoxic zones; anoxic denitrification predominated, allowing treatment of a higher nitrogen load with similar Ni removal. CONCLUSIONS: Biological processes without oxygen control are simpler to operate. For anoxic/aerobic SBR, high Ni removal efficiency was achieved even with 3.5-5.4 mg O 2 L −1 at the center of the flocs, as predicted by the diffusion model. In aerobic granular systems, SND carried out by HNAD bacteria constitutes a promising approach for nitrogen removal.

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Section: Resultsmentioning

confidence: 99%

“…51,52 Dyadobacter also was detected (1.78%); 24 this genus is able to oxidize ammonia to nitrite. 53 Autotrophic nitrifiers AOBs and NOBs showed low relative abundance at 0.61% and 0.16%, respectively. 24 Zoogloea was characterized as a potentially aerobic denitrifying bacterium.…”

Section: Microbial Community Description and Potential Biological Pro...mentioning

confidence: 96%

Biological processes of nitrogen removal and modeling oxygen diffusion in flocculent sludge and in granular sequencing batch reactors

Bucci

Marin

Zaritzky

et al. 2022

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

Enhancing palm oil mill effluent treatment through initial granulation of fruit and vegetable eco-enzymes

Basri,

Muda,

Omoregie

et al. 2023

Biomass Conv. Bioref.

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Micronutrients and Cod/N Ratio as Factors Influencing Granular Size, Autotrophic and Heterotrophic Nitrification and Denitrification in Aerobic Granular Sequencing Batch Reactors

Bucci

Coppotelli²,

Morelli³

et al. 2021

SSRN Journal

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Granulation and Biodegradation by Microbial Species in Granular Sequencing Batch Reactor for Soy Sauce Wastewater Treatment

Cited by 3 publications

References 67 publications

Biological processes of nitrogen removal and modeling oxygen diffusion in flocculent sludge and in granular sequencing batch reactors

Biological processes of nitrogen removal and modeling oxygen diffusion in flocculent sludge and in granular sequencing batch reactors

Enhancing palm oil mill effluent treatment through initial granulation of fruit and vegetable eco-enzymes

Micronutrients and Cod/N Ratio as Factors Influencing Granular Size, Autotrophic and Heterotrophic Nitrification and Denitrification in Aerobic Granular Sequencing Batch Reactors

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