Machine learning reveals the complex ecological interplay of microbiome in a full-scale membrane bioreactor wastewater treatment plant

Environmental Research, Journal Year: 2023, Volume and Issue: 222, P. 115366 - 115366

Published: Jan. 25, 2023

Language: Английский

---

Selenium and Bacillus proteolyticus SES synergistically enhanced ryegrass to remediate Cu–Cd–Cr contaminated soil

Environmental Pollution, Journal Year: 2023, Volume and Issue: 323, P. 121272 - 121272

Published: Feb. 11, 2023

Language: Английский

---

Heavy metal induced shifts in microbial community composition and interactions with dissolved organic matter in coastal sediments

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 927, P. 172003 - 172003

Published: April 2, 2024

Language: Английский

---

Remediation Agents Drive Bacterial Community in a Cd-Contaminated Soil

Toxics, Journal Year: 2023, Volume and Issue: 11(1), P. 53 - 53

Published: Jan. 4, 2023

Soil remediation agents (SRAs) such as biochar and hydroxyapatite (HAP) have shown a promising prospect in situ soil programs safe crop production. However, the effects of SRAs on microbial communities still remain unclear, particularly under field conditions. Here, case study was conducted to compare HAP bacterial slightly Cd-contaminated farmland grown with sweet sorghum different planting densities. We found that both decreased diversity richness bacteria, but they differently altered community structure. Biochar Chao1 (−7.3%), Observed_species (−8.6%), Shannon indexes (−1.3%), caused (−2.0%) Simpson (−0.1%) decline. The relative abundance (RA) some specific taxa marker species changed by HAP. Overall, cultivation did not significantly alter changes RA taxa. Some significant correlations were observed between properties abundance. In conclusion, alterations communities. Our findings help understand ecological impacts programs.

Language: Английский

---

Sustainable municipal wastewater treatment using an innovative integrated compact unit: microbial communities, parasite removal, and techno-economic analysis

Annals of Microbiology, Journal Year: 2023, Volume and Issue: 73(1)

Published: Oct. 13, 2023

Abstract Background The upflow anaerobic sludge blanket (UASB) reactors rely on bacterial communities to break down pollutants in wastewater (municipal or industrial). Methods and results In this study, a novel combination of UASB followed by aerobic treatment has been proposed for the municipal focusing using high-throughput sequencing parasite removal reactors. Moreover, economic estimation compact unit composed two overlapping reactors, downflow hanging non-woven fabric (DHNW) reactor, baffled reactor (ABR), chlorine was investigated study based community populations 1000 10,000 inhabitants, with plant capacity 54,000 540,000 m 3 /year. Cost conducted scenarios, one considering contingency cost auxiliary facility, other excluding them. Non-metric multidimensional scaling (nMDS) revealed that stages structured microbial communities. Proteobacteria most prevalent phylum all stages, Bacteroidota stages. Firmicutes Actinobacteria were also present significant amounts. system achieved from 40 66.67% parasites (parasitic nematode, Cryptosporidium , microsporidia). Redundancy analysis (RDA) indicated strong positive correlation between chemical biological oxygen demand (COD/BOD) Campylobacterales could be used as bioindicator performance. Conclusion These findings can inform development more efficient sustainable systems take into account ecology considerations.

Language: Английский

---

Sulfate-reducing bacteria-based bioelectrochemical system for heavy metal wastewater treatment: Mechanisms, operating factors, and future challenges

Journal of Electroanalytical Chemistry, Journal Year: 2023, Volume and Issue: 951, P. 117945 - 117945

Published: Nov. 19, 2023

Language: Английский

---

Effect of Corn Straw Treated with Lactobacillus plantarum and Cellulase on Ruminal Fermentation and Microbiota of Hu Sheep

Fermentation, Journal Year: 2024, Volume and Issue: 10(8), P. 402 - 402

Published: Aug. 2, 2024

This study aimed to assess how the bacterial–enzyme co-fermentation of corn straw affects fermentation quality, digestion rate in Hu sheep, and rumen microorganisms. Orthogonal experiments were utilized establish optimal conditions, which subsequently applied trials involving four groups: group A (control), B (enzyme added), C (bacteria D + enzyme). The results show that conditions addition 2% flour, cottonseed meal, 60% moisture. In comparison with A, demonstrated most favorable outcomes, notably reducing pH cellulose content while enhancing lactic acid content. relative abundances Pantoea Weissella reduced, whereas those Lactiplantibacillus Limosilactobacillus increased, fermented straw. animal experiments, exhibited significantly higher digestibility NDF ADF; total VFA, acetic acid, NH3-N contents; enzyme activity compared groups B. Additionally, Prevotella, NK4A214-group, Entodinium, Polyplastron Dasytricha Enoploplastron decreased, A. It can be concluded Lactobacillus plantarum cellulase treatments enhance nutritional value by improving ruminal regulating sheep microbiota.

Language: Английский

---

Metagenomic analysis of bacterial communities in heavy metal leachate-contaminated soils at Jalan Lipis Sanitary Landfill, Pahang, Malaysia

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 319, P. 100512 - 100512

Published: June 18, 2024

A variety of bacterial communities can be found in heavy metal leachate-contaminated soil. These bacteria might have molecular defenses that allow them to endure a high concentration. However, there aren't enough datasets on populations exploited for bioremediation, especially the biotreatment leachate contaminated with metals. This research examined diversity population soil from Jalan Lipis Sanitary Landfill Pahang, Malaysia. The samples were taken three (3) different locations. pH analysis showed possesses alkaline pH. ICPMS concentration nickel (112.96 mg/kg) followed by manganase (89.83 mg/kg), arsenic (43.84 and lead (3.62 mg/kg). most prevalent site Pseudomonas C (Proteobacteria), Flavobacterium (Bacteroidota), Proteiniclasticum (Firmicutes), according metagenomic sequencing 16 s rRNA gene. alpha beta indicate each location differs significantly its providing valuable information applied bioremediation exclusively landfill leachate.

Language: Английский

---

Microplastics in agricultural soils following sewage sludge applications: Evidence from a 25-year study

Chemosphere, Journal Year: 2025, Volume and Issue: 376, P. 144277 - 144277

Published: March 9, 2025

Sewage sludges applied to agricultural soils are sources of microplastic pollution, however, little is known about the accumulation, persistence, or degradation these microplastics over time. This first study provide long-term, high temporal resolution quantitative evidence in following sewage sludge application. The abundance and was assessed sampled biennially from an experimental field a 25-year period managed under improved grassland regime application five different sludges. contained compositions reflecting Microplastic increased by 723-1445% applications (p < 0.05) remained constant time (22 years possibly beyond) > 0.05). All predominantly added white/transparent microfibres soil. Microfilms, microfibres, fragments were most susceptible degradation, potentially creating micro(nano)plastics. Of note discoloration coloured which may be environmentally hazardous due toxicity textile dyes soil ecosystems. We also found that plastic composition could used trace its source. useful informing regulation on use management, assessing fate impact

Language: Английский

---

Assessing the Relationship Between Sedimentary Microbial Community Structure and Pollutants in Stormwater Wetlands Using eDNA Metabarcoding

Environmental DNA, Journal Year: 2025, Volume and Issue: 7(2)

Published: March 1, 2025

ABSTRACT Environmental pollution is regarded as one of the most substantial threats facing freshwater ecosystems. Two contaminant types in particular, metals and pesticides, represent both long‐term widespread hazards to aquatic environments. Contamination negatively affects health flora fauna. Constructed wetlands are an important mitigation measure for managing stormwater urban landscapes. Given that constructed designed capture retain contaminants from sediments, resulting chemical profiles largely representative contamination surrounding local catchment DNA expanding field monitoring, introducing ability assess biological quickly reliably, knowledge how ecosystems down a microbial level. Here, we used environmental (eDNA) metabarcoding characterize sedimentary nine rural wetland with low levels variation community structures between sites well inlet outlet within each site. We found significant communities (reference) wetlands, some over half inlets outlets. The bacterial phyla Cyanobacteria Proteobacteria were mostly driving this variation, along Planctomycetota Bacteroidota. also correlations structure occurrences, particularly zinc barium, latter not previously reported be associated dynamics Our study validates eDNA reliably evaluate highlights its value assessment prediction these

Language: Английский

---