Efficient municipal wastewater treatment by oxidation ditch process at low temperature: Bacterial community structure in activated sludge

Luo, Yuanshuang; Yao, Junqin; Wang, Xiyuan; Zheng, Mingzhu; Guo, Donggang; Chen, Yinguang

doi:10.1016/j.scitotenv.2019.135031

Cited by 81 publications

(29 citation statements)

References 62 publications

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“…In order to determine the most abundant genera of Saprospiraceae and to investigate their diversity and key factors correlating with their global presence, a detailed analysis was performed on the V1-V3 amplicon data obtained from the recent Global MiDAS survey (Dueholm et al, 2022), comprising 929 samples from 30 countries. Bacteroidota was the second most abundant phylum in the WWTPs (Supplementary Figure S1), with Saprospiraceae being the most abundant family (Figure 1A), in accordance with previous observations (Yang et al, 2015(Yang et al, , 2017Al Ali et al, 2020;Cao et al, 2020;Luo et al, 2020). Saprospiraceae was very diverse and comprised more than 162 different genera based on MiDAS 4, which included the known Ca.…”

Section: Abundance and Distribution Of Saprospiraceae In Wwtps Worldwidesupporting

confidence: 89%

“…However, extensive metabolic reconstruction is still lacking. In situ studies have shown a strong metabolic capacity to decompose proteins, lipids, and other macromolecules into simple compounds (Luo et al, 2020). For example, the genus Candidatus Epiflobacter plays an important role in protein degradation by the production of extracellular enzymes (Xia et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Diversity and Ecophysiology of the Genus OLB8 and Other Abundant Uncultured Saprospiraceae Genera in Global Wastewater Treatment Systems

et al. 2022

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The Saprospiraceae family within the phylum Bacteroidota is commonly present and highly abundant in wastewater treatment plants (WWTPs) worldwide, but little is known about its role. In this study, we used MiDAS 4 global survey with samples from 30 countries to analyze the abundance and distribution of members of Saprospiraceae. Phylogenomics were used to delineate five new genera from a set of 31 high-quality metagenome-assembled genomes from Danish WWTPs. Newly designed probes for fluorescence in situ hybridization (FISH) revealed rod-shaped morphologies for all genera analyzed, including OLB8, present mostly inside the activated sludge flocs. The genomes revealed potential metabolic capabilities for the degradation of polysaccharides, proteins, and other complex molecules; partial denitrification; and storage of intracellular polymers (glycogen, polyphosphate, and polyhydroxyalkanoates). FISH in combination with Raman microspectroscopy confirmed the presence of intracellular glycogen in Candidatus Brachybacter, Candidatus Parvibacillus calidus (both from the former genus OLB8), and Candidatus Opimibacter, and the presence of polyhydroxyalkanoates in Candidatus Defluviibacterium haderslevense and Candidatus Vicinibacter. These results provide the first overview of the most abundant novel Saprospiraceae genera present in WWTPs across the world and their potential involvement in nutrient removal and the degradation of macromolecules.

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Section: Abundance and Distribution Of Saprospiraceae In Wwtps Worldwidesupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Diversity and Ecophysiology of the Genus OLB8 and Other Abundant Uncultured Saprospiraceae Genera in Global Wastewater Treatment Systems

et al. 2022

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“…The reason for this may be that different sources of wastewater lead to different dominant bacteria in the treatment system. Xu et al and Luo et al found that Proteobacteria, Bacteroidetes, Chloroliid, and Actinobacteria were the dominant bacteria in the sewage treatment system in Xinjiang and all played an important role in the sewage treatment process [30,31]. Furthermore, Chao et al found that the dominant bacteria in drinking water were Firmicutes, Bacteroidetes, Chlorolipids, Actinobacteria, Cyanobacteria, and Proteobacteria [32].…”

Section: Bacterial Community Structure Among the Biological Treatment Systemsmentioning

confidence: 99%

“…After a series of treatments of piggery wastewater, Clostridiales can still be detected in the system; at present, China has not strictly defined the emission indicators for pathogenic bacteria in water treatment, which means that the pathogenic bacteria in aquaculture wastewater could then be discharged into the natural environment and threaten human health. Proteobacteria, Bacteroidetes, Chloroliid, and Actinobacteria were the dominant bacteria in the sewage treatment system in Xinjiang and all played an important role in the sewage treatment process [30,31]. Furthermore, Chao et al found that the dominant bacteria in drinking water were Firmicutes, Bacteroidetes, Chlorolipids, Actinobacteria, Cyanobacteria, and Proteobacteria [32].…”

Section: Bacterial Community Structure Among the Biological Treatment Systemsmentioning

confidence: 99%

Bacterial Community Structure and Dynamic Changes in Different Functional Areas of a Piggery Wastewater Treatment System

Shi

Liu

et al. 2021

Microorganisms

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Chemicals of emerging concern (CEC) in pig farm breeding wastewater, such as antibiotics, will soon pose a serious threat to public health. It is therefore essential to consider improving the treatment efficiency of piggery wastewater in terms of microorganisms. In order to optimize the overall piggery wastewater treatment system from the perspective of the bacterial community structure and its response to environmental factors, five samples were randomly taken from each area of a piggery’s wastewater treatment system using a random sampling method. The bacterial communities’ composition and their correlation with wastewater quality were then analyzed using Illumina MiSeq high-throughput sequencing. The results showed that the bacterial community composition of each treatment unit was similar. However, differences in abundance were significant, and the bacterial community structure gradually changed with the process. Proteobacteria showed more adaptability to an anaerobic environment than Firmicutes, and the abundance of Tissierella in anaerobic zones was low. The abundance of Clostridial (39.02%) and Bacteroides (20.6%) in the inlet was significantly higher than it was in the aerobic zone and the anoxic zone (p < 0.05). Rhodocyclaceae is a key functional microbial group in a wastewater treatment system, and it is a dominant microbial group in activated sludge. Redundancy analysis (RDA) showed that chemical oxygen demand (COD) had the greatest impact on bacterial community structure. Total phosphorus (TP), total nitrogen (TN), PH and COD contents were significantly negatively correlated with Sphingobacteriia, Betaproteobacteria and Gammaproteobacteria, and significantly positively correlated with Bacteroidia and Clostridia. These results offer basic data and theoretical support for optimizing livestock wastewater treatment systems using bacterial community structures.

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“…Five components of wastewater (TN, TP, TOC, NH 3 -N, and NO 3 -N) were studied to determine their environmental effect on their bacterial communities [47][48][49]. An increase in TP promoted the growth of Serratia, Lactobacillus, Proteus, Clostridium sensu stricto, unclassified_f__Peptostreptococcaceae, Turicibacter, Ruminococcus 1, Terrisporobacter, Escherichia-Shigella, Blautia, Bacillus, Ruminococcus 2, Acidocella, and norank_c__Cyanobacteria.…”

Section: Relationship Between Bacterial Richness and Physicochemical Properties Of Bistriazine Ring Derivative Wastewatermentioning

confidence: 99%

Impact of Non-Metallic Organic Tanning Agents with a Double-Triazine Structure on the Microbial Community Structure in Wastewater

Zhi-fen

Hassan

et al. 2021

Water

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This study examined the correlation between non-metallic organic tanning agents (NOTAs) and wastewater containing double-triazine (bistriazine). Specifically, high-throughput sequencing was used to analyze how the physical and chemical properties of the bistriazine-containing wastewater affected the microbial community. In total, 9995 operating taxonomy units (OTUs) were detected at a similarity level of 97%. According to the taxonomy results and relative bacterial richness, the non-metallic organic tanning agent (NOTA) wastewater communities showed significant differences. Clostridium sensu stricto and Turicibacter bacteria were dominant in NOTA T2, T3, and the blank control (KB) wastewater; Trichococcus and Aeromonas were dominant in NOTA T4; and Pseudomonas was dominant in T2, T4, and the blank control (KB). Thus, the addition of bistriazine ring derivatives altered the composition of the bacterial community. Furthermore, Spearman’s correlation analysis revealed a substantial correlation in the composition of the communities and the physicochemical properties of the wastewater. Acidocella and norank c Cyanobacteria correlated positively with Total Phosphorus (TP) (p ≤ 0.001) and Mycobacterium showed a positively held correlation with pH (p ≤ 0.05). Conversely, norank_f__Elev-16S-1332 indicated a negative correlation with TP, Total Nitrogen (TN), and Total Organic Carbon (TOC) (p ≤ 0.05), whereas Zoogloea correlated negatively with NH3–N, TOC, and TN (p ≤ 0.05). Regarding water quality, a significant correlation between microbial communities and the physicochemical properties of bistriazine wastewater was also observed (p ≤ 0.05). We concluded that Trichococcus, Clostridium sensu stricto, Turicibacter, Pseudomonas, Intestinibacter, Acidocella, Bacillus, and Tolumonas showed a high tolerance for bistriazine wastewater, which could offer insight into its bioremediation.

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Efficient municipal wastewater treatment by oxidation ditch process at low temperature: Bacterial community structure in activated sludge

Cited by 81 publications

References 62 publications

Diversity and Ecophysiology of the Genus OLB8 and Other Abundant Uncultured Saprospiraceae Genera in Global Wastewater Treatment Systems

Diversity and Ecophysiology of the Genus OLB8 and Other Abundant Uncultured Saprospiraceae Genera in Global Wastewater Treatment Systems

Bacterial Community Structure and Dynamic Changes in Different Functional Areas of a Piggery Wastewater Treatment System

Impact of Non-Metallic Organic Tanning Agents with a Double-Triazine Structure on the Microbial Community Structure in Wastewater

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