Treatment of saline wastewater amended with endocrine disruptors by aerobic granular sludge: Assessing performance and microbial community dynamics

Ely, Cyntia; Moreira, Irina S.; Bassin, João Paulo; Dezotti, Márcia; Mesquita, D. P.; Costa, José Miguel; Ferreira, E. C.; Castro, Paula M. L.

doi:10.1016/j.jece.2022.107272

Cited by 11 publications

(5 citation statements)

References 81 publications

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“…Its increased abundance may result from the increased BPA concentration in the surrounding microenvironment [44] . Bacteroidetes, Actinobacteria, and Firmicutes have also been frequently isolated from surface water polluted with organic contaminants [45][46][47][48] , and have also been veri ed to have the potential for BPA degradation [49][50][51] .…”

Section: Effect Of Bpa Acclimationmentioning

confidence: 99%

Limited bisphenol A (BPA) degradation acceleration by pre-acclimating microplastic biofilms with BPA in natural lake water

Gao,

Zhao,

Jiang

2024

Preprint

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Background: Bisphenol A (BPA) and microplastics are prevalent in aquatic environments. Microplastic biofilms play a crucial role in the environmental degradation of BPA, but related research is lacking. We designed experiments to investigate the effect of BPA on microplastic biofilms and the effect of pre-acclimating biofilms on BPA degradation. Results: Even at low concentrations (0.1 mg L-1), BPA significantly reduced microplastic biofilm biomass (P < 0.05). High-throughput 16S rRNA sequencing revealed that BPA altered biofilm diversity, as evidenced by changes in Chao-1 and Shannon indices. The primary phyla in the microplastic biofilm included Proteobacteria, Bacteroidetes, Actinobacteria, and Firmicutes. On the 7th day of biofilm formation, the dominant bacterial genus shifted from Ohtaekwangia to Bdellovibrio in groups with BPA treatment, and the relative abundance of Bdellovibrio reached 4.32% ± 5.34%. On the 14th day, Methylobacillus significantly increased in all treatments compared with the 7th day (P < 0.05). Adonis analysis demonstrated that the metabolic composition of the bacterial community also changed significantly (P < 0.05). BPA (0.1 mg L-1) pre-acclimation of microplastic biofilms led to a significant increase in the amount of BPA-degrading bacteria with no significant effect on BPA degradation efficiency. After 7 days, the BPA removal rate in high-concentration microplastic treatments (1600 mg L-1) reached > 90%. Conclusions: Biofilms significantly increased the BPA degradation rate by 174.78% to 889.25% on the third day, indicating that the biofilm accelerates BPA degradation efficiency in the short term. Our findings provide a foundation for further understanding the environmental risks associated with the coexistence of bisphenols and microplastics.

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Section: Effect Of Bpa Acclimationmentioning

confidence: 99%

Limited bisphenol A (BPA) degradation acceleration by pre-acclimating microplastic biofilms with BPA in natural lake water

Gao,

Zhao,

Jiang

2024

Preprint

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“…1,2 17b-estradiol is a typical EDC and one of the most potent estrogenic compounds among natural steroid estrogens. 3 It can interfere with the normal endocrinal functions of the human body and animals, thereby affecting the intracellular signaling processes and physiological functions, such as growth, development and reproduction. 17b-estradiol is widely used in animal feed to promote animal growth, leading to a high level of estrogen in dairy and meat.…”

Section: Introductionmentioning

confidence: 99%

A “turn-on” fluorescence resonance energy transfer aptasensor based on carbon dots and gold nanoparticles for 17β-estradiol detection in sea salt

Qian,

Bao,

Liu

et al. 2023

RSC Adv.

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“…The lower initial investment cost, either in terms of energy consumption or less space needed due to the higher compactness of the granules formed with excellent settling properties, is one of the main advantages of AGS [5]. The high tolerance to chemical toxicity, good effluent clarification, and high biomass retention contribute to the increasing interest in AGS technology, since the amount of wastewater that can be treated in the bioreactor increases [5][6][7][8]. Moreover, the simultaneous removal of carbon and nutrients with high shock load resistance, all in a single reactor, contributes to the ecological benefits of this technology [6,9].…”

Section: Introductionmentioning

confidence: 99%

“…The high tolerance to chemical toxicity, good effluent clarification, and high biomass retention contribute to the increasing interest in AGS technology, since the amount of wastewater that can be treated in the bioreactor increases [5][6][7][8]. Moreover, the simultaneous removal of carbon and nutrients with high shock load resistance, all in a single reactor, contributes to the ecological benefits of this technology [6,9]. AGS comprises suspended microorganisms that bend together to form spherical aggregates which form clusters [10].…”

Section: Introductionmentioning

confidence: 99%

“…EPS leads to the creation of a layered structure that protects microorganisms from direct contact with the external environment and from the toxicity of the wastewater contaminants [12]. Additionally, some studies showed that AGS technology is efficient in degrading toxic contaminants such as fluorophenol and endocrine disruptors, among others [6,13].…”

Section: Introductionmentioning

confidence: 99%

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Bioaugmentation of Aerobic Granular Sludge with Dye-Decolorizing Yeast for Textile Industrial Wastewater

Mendes

Moreira

et al. 2023

Processes

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A sequencing batch reactor (SBR) inoculated with activated sludge and bioaugmented with a dye-decolorizing yeast strain—Yarrowia lipolytica (HOMOGST27AB) was assembled to form yeast-bioaugmented aerobic granular sludge (AGS). The bioaugmented AGS-SBR was operated for the treatment of synthetic saline wastewater (12 g L−1) intermittently fed with a reactive textile dye (Navy Everzol ED) at 25, 15, and 7.5 mg L−1. Dye degradation did not occur, although some dye adsorbed to the granules. AGS-SBR performance in removing carbon and nitrogen was good and was not affected by the dye addition. Bioaugmentation with the yeast Y. lipolytica (HOMOGST27AB) occurred with success, proved by sequencing samples from granules throughout the reactor operation. The AGS core microbiome gathered essentially microorganisms from the Proteobacteria and Bacteroidetes phyla. The microbial profile showed a dynamic microbiome established at Phase I of the operation, with a high decrease in the abundance of Ignavibacterium from the initial biomass to the granules formed and an increase in Actinobacteria, Cytophagia, Flavobacteria, and Alphaproteobacteria in the remaining phases of the bioreactor operation.

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Treatment of saline wastewater amended with endocrine disruptors by aerobic granular sludge: Assessing performance and microbial community dynamics

Cited by 11 publications

References 81 publications

Limited bisphenol A (BPA) degradation acceleration by pre-acclimating microplastic biofilms with BPA in natural lake water

Limited bisphenol A (BPA) degradation acceleration by pre-acclimating microplastic biofilms with BPA in natural lake water

A “turn-on” fluorescence resonance energy transfer aptasensor based on carbon dots and gold nanoparticles for 17β-estradiol detection in sea salt

Bioaugmentation of Aerobic Granular Sludge with Dye-Decolorizing Yeast for Textile Industrial Wastewater

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