Shifts of bacterial community and molecular ecological network in activated sludge system under ibuprofen stress

Liu, Shidi; Chen, Daying; Wang, Zhimin; Zhang, Minglu; Zhu, Minghan; Yin, Meilin; Zhang, Tingting; Wang, Xiaohui

doi:10.1016/j.chemosphere.2022.133888

Cited by 19 publications

(5 citation statements)

References 40 publications

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“…MENA over the whole operation period revealed that the addition of EPs cut off the wide, strong correlations among species under control conditions (Figure 3b, Table S7). The outcomes of this strategy were consistent with the results of Liu et al 45 Weak modularity was found through the leading eigenvector of the community matrix, but the SMX group (0.098) showed stronger modularity than the CBZ group (0.070). A strong negative correlation was found in the CBZ group, reflecting competition under high selection pressure.…”

Section: Effect Of Eps On Biofilm Formation and Communitysupporting

confidence: 89%

Adaptive Evolution Laws of Biofilm under Emerging Pollutant-Induced Stress: Community Assembly-Driven Structure Response

Kong

Jin

Zhao

et al. 2023

Environ. Sci. Technol.

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The widely used biofilm process in advanced wastewater treatment is currently challenged by numerous exotic emerging pollutants (EPs), and the underlying principle of the challenge is the adaptive evolution laws of biofilm under EP stress. However, there is still a knowledge gap in exploration of the biofilm adaptive evolution theory. Herein, we comprehensively analyzed the morphological variation, community succession, and assembly mechanism of biofilms to report the mechanism underlying their adaptive evolution under sulfamethoxazole and carbamazepine stress for the first time. The ecological role of the dominant species was driven as a pioneer and assembly hub by EP stress, and the deterministic processes indicated the functional basis of the transformation. In addition, the characteristic responses of dispersal limitation and homogenizing dispersal adequately revealed the assembly pathways in adaptive evolution and the resulting structural variation. Therefore, the "interfacial exposure−structural variation−mass transfer feedback" mechanism was inferred to underly the adaptive evolution process of biofilms. Overall, this study highlighted the internal drivers of the adaptive evolution of the biofilm at the phylogenetic level and deepened our understanding of the mechanism of biofilm development under EP stress in advanced wastewater purification.

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Section: Effect Of Eps On Biofilm Formation and Communitysupporting

confidence: 89%

Adaptive Evolution Laws of Biofilm under Emerging Pollutant-Induced Stress: Community Assembly-Driven Structure Response

Kong

Jin

Zhao

et al. 2023

Environ. Sci. Technol.

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“…Perhaps there was a dominance of one of these groups. Such a phenomenon, under the influence of ibuprofen, was observed in the study by Liu et al [38]. Stress caused by drug dosage induces changes in the proportion of denitrifying bacteria-Denitratisoma i Hyphomicrobium strains multiply while the development of Nitrospira is partially inhibited.…”

Section: Fermentationmentioning

confidence: 76%

“…With longterm exposure to triclosan, the growth of polyphosphate accumulating organisms (PAOs) is inhibited [37]. In the study by Liu et al [38], this inference was not confirmed. Longterm dosing of triclosan at a ten-fold higher concentration (1 mg/dm 3 ) did not negatively affect the processes of nutrient removal from wastewater, while the impact of ibuprofen caused a significant decrease in the microbial diversity of the activated sludge.…”

Section: Dephosphatation Nitrification and Denitrificationmentioning

confidence: 99%

“…Thus, the effect of drugs from the NSAIDs group on activated sludge can also affect the inhibition of nitrification and denitrification processes in activated sludge. Such changes are caused, for example, by a dose of ibuprofen or paracetamol of 250 mg/dm 3 [38,39,67].…”

Section: Fermentationmentioning

confidence: 99%

“…Pharmaceuticals, including NSAIDs, can exert a wide range of stimulating and inhibiting effects on biochemical processes in activated sludge-including nutrient removal processes. The effects of some anti-inflammatory drugs, commonly found in the influent of WWTPs (e.g., ibuprofen, triclosan, paracetamol, diclofenac), on activated sludge are described in the literature, but the information on DCF is very selective and poor [37][38][39].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Diclofenac Concentration on Activated Sludge Conditions in a Biological Wastewater Treatment Plant

Dereszewska

Cytawa²

2023

Water

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Significant quantities of pharmaceutical substances enter biological wastewater treatment plants, where they interact with activated sludge microorganisms. An example of a pharmaceutical commonly used is the non-steroidal anti-inflammatory drug diclofenac (DCF). The presence of high concentrations of DCF in wastewater can disrupt nutrient removal processes, which are highly sensitive to external environmental factors. This paper discusses the effect of high DCF concentrations (1.04 mg/dm3–12.5 mg/dm3; 0.25 mg/gTS–3.0 mg/gTS) on the efficiency of nitrifying, denitrifying and phosphate-accumulating organisms in the wastewater treatment cycle. The condition of the activated sludge was assessed on the basis of the oxygen and nitrogen uptake rates values and the ability to biologically remove phosphorus compounds from the wastewater. The effect of DCF on the ability of methane-forming bacteria to produce biogas in the anaerobic digester was also investigated. None of the biochemical reactions of activated sludge were inhibited at applied DCF concentrations. A 33% reduction in biogas production was observed at a DCF dose of 0.0391 mg/gTS. Slight deviations from the typical course of biochemical transformation of ammonium compounds were recorded at a DCF concentration of 3 mg/gTS of sludge. However, in the concentration range studied, no negative effect of DCF, on the operation of the activated sludge, was found.

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Co-treatment of landfill leachate with urban wastewater by chemical, physical and biological processes: Fenton oxidation preserves autochthonous bacterial community in the activated sludge process

et al. 2023

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Shifts of bacterial community and molecular ecological network in activated sludge system under ibuprofen stress

Cited by 19 publications

References 40 publications

Adaptive Evolution Laws of Biofilm under Emerging Pollutant-Induced Stress: Community Assembly-Driven Structure Response

Adaptive Evolution Laws of Biofilm under Emerging Pollutant-Induced Stress: Community Assembly-Driven Structure Response

Effect of Diclofenac Concentration on Activated Sludge Conditions in a Biological Wastewater Treatment Plant

Co-treatment of landfill leachate with urban wastewater by chemical, physical and biological processes: Fenton oxidation preserves autochthonous bacterial community in the activated sludge process

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