Tetrabromobisphenol A (TBBPA) anaerobic biodegradation occurs during acidogenesis

Macêdo, Williane Vieira; Oliveira, Guilherme Henrique Duarte de; Zaiat, Marcelo

doi:10.1016/j.chemosphere.2021.130995

Cited by 11 publications

(17 citation statements)

References 68 publications

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“…As previously discussed in Section 3.1, the production of organic acids from the consumption of carbohydrates in the Ac reactor provides a greater diversity of specific microbial enzymes, culminating in the greater cometabolic biodegradation of PPCPs in the TS-AFBR, which is more pronounced for the most persistent compounds (IBP, CBZ, CIP, MTP, and DCF) (Figure 2). Macedo et al 25 evaluated tetrabromobisphenol-A biodegradation and found that it was favored by carbohydrates breakdown by bacteria producing nonspecific enzymes, in agreement with the results of this work. The metabolic routes of VFA production by acidogenic bacteria followed an order of prevalence of isovaleric/valeric (39%) > isobutyric/butyric (25%) > acetic (18%) > propionic (17%) > caproic (1%).…”

Section: Overall Bioreactor Operational Performance Assessmentsupporting

confidence: 90%

“…The bioreactors’ feeding substrate was adapted from Macêdo et al and was composed of (in mg L –1 ): sucrose (211), beef extract (530), soluble starch (221), NaCl (125), MgCl 2 ·6H 2 O (28), CaCl 2 ·2H 2 O (18), KH 2 PO 4 (30), nitriloacetic acid (12.8), FeCl 3 ·6H 2 O (1.35), MnCl 2 ·4H 2 O (0.1), CoCl 2 ·6H 2 O (0.024), ZnCl 2 ·4H 2 O (0.1), CuCl 2 ·2H 2 O (0.025), H 3 BO 3 (0.01), Na 2 MoO 4 ·2H 2 O (0.024), Na 2 SeO 3 ·5H 2 O (0.026), and NiCl 2 ·6H 2 O (0.12). NaHCO 3 was added at a concentration of 600 mg L –1 in the SS-AFBR feed composition to favor methanogenic conditions.…”

Section: Methodsmentioning

confidence: 99%

“…Feeding Substrate and Selected PPCPs. The bioreactors' feeding substrate was adapted from Macedo et al 25 and was composed of (in mg L −1 ): sucrose (211), beef extract (530), soluble starch (221), NaCl (125), MgCl O (0.12). NaHCO 3 was added at a concentration of 600 mg L −1 in the SS-AFBR feed composition to favor methanogenic conditions.…”

Section: Experimental Apparatusmentioning

confidence: 99%

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Enhancing Organic Micropollutants Removal in Wastewater with an Innovative Two-Stage Anaerobic Fixed-Film Bioreactor: Role of Acidogenic and Methanogenic Steps

Carneiro,

Gomes,

Sabatini

et al. 2023

ACS EST Eng.

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The distinct stages of anaerobic digestion (AD) exhibit varying effects on the removal of diverse organic micropollutants present in wastewater. This study demonstrates the effectiveness of AD phase separation (acidogenesis and methanogenesis) in a two-stage anaerobic fixed-film bioreactor in the removal of pharmaceuticals and personal care products (PPCPs) from wastewater. The acidogenic−-methanogenic reactor achieved removal rates of over 95% for the chemicals sulfamethoxazole, methylparaben, propylparaben, naproxen, and acetaminophen and surpassed the single-stage methanogenic reactor in the removal of the more persistent compounds, ibuprofen, carbamazepine, metoprolol, ciprofloxacin, and diclofenac. The acidogenic step played a pivotal role in degrading persistent PPCPs, likely attributed to the selection of microbial enzymes involved in the production of volatile fatty acids from the oxidation of carbohydrates. The key candidate microbial genera for the PPCPs biodegradation were identified in the acidogenic reactor as Bacteroides, Clostridium, Williamwhitmania, Catenisphaera, and Erysipelothrix. In the methanogenic reactor, there was a predominance of Rectinema, Smithella, Syntrophus, and Syntrophorhabdus in coculture with hydrogen-using methanogens (Methanoregula and Methanolinea). This innovative two-stage reactor presents a promising solution for efficient organic micropollutant elimination in wastewater treatment plants.

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Section: Overall Bioreactor Operational Performance Assessmentsupporting

confidence: 90%

Section: Methodsmentioning

confidence: 99%

Section: Experimental Apparatusmentioning

confidence: 99%

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Enhancing Organic Micropollutants Removal in Wastewater with an Innovative Two-Stage Anaerobic Fixed-Film Bioreactor: Role of Acidogenic and Methanogenic Steps

Carneiro,

Gomes,

Sabatini

et al. 2023

ACS EST Eng.

Self Cite

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“…and Pseudomonas sp. which have been reported to have ability to degrade TBBPA under anaerobic conditions increased from 3.9% in the control to 5.3 and 7.6% in the 0.1 and 2 mg/L TBBPA-present reactors, this enrichment could be correlated with the observed degradation of TBBPA in Figure S3. , Figure b displays the genus-level distributions of the archaeal community. The top 4 genera were Methanosaeta , Methanobacterium , Methanolinea , and Methanosarcina accounting for 47.2, 15.5, 12.7, and 12.1% of the total archaea in the control.…”

Section: Resultsmentioning

confidence: 99%

Hormesis-Like Effects of Tetrabromobisphenol A on Anaerobic Digestion: Responses of Metabolic Activity and Microbial Community

Liu

et al. 2022

Environ. Sci. Technol.

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Tetrabromobisphenol A (TBBPA) has extensive applications in various fields; its release into ecosystems and the potential toxic effects on organisms are becoming major concerns. Here, we investigated the effects of TBBPA on anaerobic digestion, whose process is closely related to the carbon cycles under anaerobic conditions. The results revealed that TBBPA exhibited dose-dependent hormesis-like effects on methane production from glucose, i.e., the presence of 0.1 mg/L TBBPA increased the methane production rate by 8.79%, but 1.0−4.0 mg/L TBBPA caused 3.45−28.98% of decrement. We found that TBBPA was bound by the tyrosine-like proteins of the extracellular polymeric substances of anaerobes and induced the increase of reactive oxygen species, whose slight accumulation stimulated the metabolism activities but high accumulation increased the apoptosis of anaerobes. Owing to the differences between individual anaerobes in tolerance, TBBPA at 0.1 mg/L stimulated the acidogenesis and hydrogenotrophic methanogenesis, whereas higher levels (i.e., 1.0−4.0 mg/L) severely restrained all of the processes of acidogenesis, acetogenesis, and methanogenesis. Along with the accumulation of bisphenol A (BPA) produced from TBBPA by Longilinea sp. and Pseudomonas sp., the methanogenic pathway was partly shifted from acetate-dependent to hydrogen-dependent direction, and the activities of carbon monoxide dehydrogenase and acetyl-CoA decarbonylase/synthase were inhibited, while acetate kinase and F420 were hormetically affected. These findings elucidated the mechanism of anaerobic syntrophic consortium responses to TBBPA, supplementing the potential environmental risks of brominated flame retardants.

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“…The removal of some compounds, such as galaxolide, celestolide, tonalide, erythromycin, and roxithromycin was favored under acidogenic conditions compared to acetogenesis/methanogenesis whereas the removal of other compounds, such as triclosan, fluoxetine, bisphenol A, and carbamazepine depends on acetogenesis/methanogenesis. Macêdo et al (2021) evaluated tetrabromobisphenol A removal in two anaerobic structured-bed reactors under acidogenic and methanogenic conditions and observed that the biodegradation occurred during acidogenesis via co-metabolism. Pirete et al (2022) found that acidogenic bacteria were responsible for diclofenac and ibuprofen biodegradation in an anaerobic fluidized-bed reactor.…”

Section: Development Of Anaerobic Reactors For Mp Removalmentioning

confidence: 99%

Fate of micropollutants

de Oliveira,

Lovato,

Rodrigues

et al. 2024

Anaerobic Treatment of Domestic Wastewater

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Micropollutants (MPs) are biological or chemical compounds resulting from human activities that make their way into water bodies in trace quantities. They cause adverse effects on aquatic environments and their complexity and costly quantification makes them difficult to monitor and, consequently, the implementation of legislation for controlling their disposal. Thus, the aim of this chapter is to describe occurrence, environmental and health impacts, and current regulatory frameworks of MPs. The fate and removal of these contaminants in anaerobic reactors treating domestic wastewater is discussed and strategies for enhancing MP removal are presented. Studies on MP removal in anaerobic systems are still emerging and a great deal of work should be carried out to evaluate whether conventional anaerobic reactors applied to domestic wastewater treatment under usual operating conditions are able to effectively remove contaminants of emerging concern. Transferring the mechanistic understanding of the anaerobic biotransformation of MPs to feasible changes to be implemented in mainstream anaerobic domestic wastewater treatment remains a major challenge. Moreover, the study of new operating strategies and reactor configurations seems to be mandatory to comply with the requirements of removing organic matter, nutrients, and MPs, as well as generating energy (biogas), thus resulting in robust, safe, and sustainable units.

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Tetrabromobisphenol A (TBBPA) anaerobic biodegradation occurs during acidogenesis

Cited by 11 publications

References 68 publications

Enhancing Organic Micropollutants Removal in Wastewater with an Innovative Two-Stage Anaerobic Fixed-Film Bioreactor: Role of Acidogenic and Methanogenic Steps

Enhancing Organic Micropollutants Removal in Wastewater with an Innovative Two-Stage Anaerobic Fixed-Film Bioreactor: Role of Acidogenic and Methanogenic Steps

Hormesis-Like Effects of Tetrabromobisphenol A on Anaerobic Digestion: Responses of Metabolic Activity and Microbial Community

Fate of micropollutants

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