Article
Ecology
Li Zhang, Jin-Long Lai, Yu Zhang, Xue-Gang Luo, Zhan-Guo Li
Summary: This study provides a complete degradation scheme for acrylic copolymer/cellulose acetate butyrate peelable decontamination films. The results show that UV radiation combined with microbial flora can achieve rapid degradation of the decontamination films, with microbial flora inducing significant decreases in weight-average molecular weight and number-average molecular weight.
Article
Environmental Sciences
Lucelia Cabral, Patricia Giovanella, Elisa Pais Pellizzer, Elias Hideo Teramoto, Chang Hung Kiang, Lara Duraes Sette
Summary: In recent decades, hydrocarbon concentrations in soil and water have increased due to accidents or operations involving crude oil and petroleum input into the environment. Bioremediation has emerged as an effective environmental recovery approach, utilizing hydrocarbon compounds as growth substrates for microorganisms, contributing to the stabilization of impacted areas.
Article
Environmental Sciences
Irina Kuzikova, Evgeny Andronov, Tatyana Zaytseva, Larissa Metelkova, Zoya Zhakovskaya, Nadezda Medvedeva
Summary: This study investigated the impact of contamination with nonylphenol (NP) and butyltins (BuTs) on the microbial community structure in marine sediments using microcosms and high-throughput sequencing. The results showed that co-contamination with NP and BuTs did not affect their degradation processes, while significantly different and less diverse bacterial communities were observed in the contaminated sediments compared to non-contaminated control.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Environmental Sciences
Foqia Khalid, Muhammad Zaffar Hashmi, Nadia Jamil, Abdul Qadir, Muhammad Ishtiaq Ali
Summary: PCBs, common pollutants in electronic waste, can be effectively removed from the environment through bioremediation. Research has shown that certain bacterial strains are the most proficient PCB degraders under aerobic conditions, while enzymes in soil also have the capability to break down PCBs.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Microbiology
Daniel Abiriga, Andrew Jenkins, Kristian Alfsnes, Live Semb Vestgarden, Harald Klempe
Summary: The study characterized the microbial communities in an aquifer contaminated by landfill leachate undergoing intrinsic remediation using 16S rRNA metabarcoding. Results showed spatial and temporal variations in species composition and water chemistry characteristics.
FEMS MICROBIOLOGY ECOLOGY
(2021)
Article
Microbiology
Ashraf Al-Ashhab, Amer Sweity, Luna Al-Hadidi, Moshe Herzberg, Zeev Ronen
Summary: This study investigates the biodegradability of three commercial antiscalants used in seawater desalination and their effects on microbial diversity. The results show that the polyphosphonate antiscalant is the least biodegradable and has the least impact on bacterial community composition.
Article
Chemistry, Analytical
Lindan Pan, Chuanmiao Ding, Yefeng Deng, Hao Chen, Hailiang Yang, Biyang Wang, Yang Zhou, Bing Wang
Summary: This study proposes the combination of proteomics and metabolomics to explore the interaction between bacteria and historical silk during biodegradation. The results reveal the different effects of Stenotrophomonas maltophilia and Pseudomonas alcaligenes on silk proteins and metabolites, suggesting that the presence of silk may inhibit bacterial activity.
ANALYTICAL METHODS
(2023)
Article
Environmental Sciences
Yumiao Zhou, Ying Wang, Likun Yang, Qiang Kong, Huanxin Zhang
Summary: Petroleum hydrocarbons are significant new persistent organic pollutants for marine oil spill risk areas. Oil trading ports have become major bearers of the risk of offshore oil pollution. However, studies on the molecular mechanisms of microbial degradation of petroleum pollutants by natural seawater are limited. In this study, an in situ microcosm study was conducted, revealing differences in metabolic pathways and gene abundances of total petroleum hydrocarbons (TPH) under different conditions. The degradation of TPH was shown to be 88% after 3 weeks of treatment. Various bacterial genera, such as Cycloclasticus, Marivita, and Sulfitobacter, were identified as positive responders to TPH. The use of dispersants with oil enhanced the degradation of TPH, with certain bacterial species from the Proteobacteria phylum playing key roles. Additionally, the study found that the biodegradability of aromatic compounds and polycyclic aromatic hydrocarbons was enhanced after the oil spill, while the photosynthesis-related mechanism was inhibited. The dispersant treatment stimulated microbial degradation of TPH and promoted the succession of microbial communities. The study provides insights into the metabolic pathways and functional genes for oil degradation by marine microorganisms, which will contribute to the improvement of bioremediation applications and practices.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Ben Zhang, Wei Xu, Yichi Ma, Xiaolong Gao, Huyang Ming, Jianli Jia
Summary: A strain of Achromobacter xylosoxidans BP1 with superior PAHs degradation ability was isolated from contaminated soil in northern China, providing a viable solution for bioremediation of PAHs-contaminated soil. The removal rates of phenanthrene (PHE) and benzo[a]pyrene (BaP) by strain BP1 were 98.47% and 29.86% after 7 days, respectively. BP1 significantly enhanced the removal of PHE and BaP in PAH-contaminated soil, with a removal rate of 67.72% and 13.48% over 49 days.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Ernestina Hauptfeld, Jordi Pelkmans, Terry T. Huisman, Armin Anocic, Basten L. Snoek, F. A. Bastiaan von Meijenfeldt, Jan Gerritse, Johan van Leeuwen, Gert Leurink, Arie van Lit, Ruud van Uffelen, Margot C. Koster, Bas E. Dutilh
Summary: Biodegradation is a sustainable and cost-effective solution for groundwater pollution. In this study, the microbial populations involved in the biodegradation of poly-contaminants in a heavily contaminated groundwater pipeline were investigated. The microbial communities were analyzed using genome-resolved metagenomic analysis, revealing the changing microbial communities in a highly effective groundwater treatment system.
Article
Engineering, Environmental
Ernestina Hauptfeld, Jordi Pelkmans, Terry T. Huisman, Armin Anocic, Basten L. Snoek, F. A. Bastiaan von Meijenfeldt, Jan Gerritse, Johan van Leeuwen, Gert Leurink, Arie van Lit, Ruud van Uffelen, Margot C. Koster, Bas E. Dutilh
Summary: This study investigates the microbial communities involved in the biodegradation of poly-contaminants in a groundwater treatment system. The genome-resolved metagenomic analysis revealed significant differences in microbial populations between the plant and the contaminated park groundwater. The findings provide valuable insights into the efficacy of microbial biodegradation in treating complex groundwater contaminants.
Article
Environmental Sciences
Anirban Chakraborty, Martin Suchy, Casey R. J. Hubert, M. Cathryn Ryan
Summary: Nitrate pollution is a significant threat to groundwater quality in agricultural areas. This study investigated the geochemistry and microbial communities in a shallow nitrate-contaminated aquifer in British Columbia, Canada. The vertical distribution of denitrifying microbial populations was influenced by groundwater redox conditions and seasonal variability in groundwater flow and recharge.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Computer Science, Interdisciplinary Applications
Shakil A. Masum, Hywel R. Thomas
Summary: Predicting the transport and fate of organic and inorganic contaminants in co-contaminated soils is challenging due to the complex, inter-related processes involved. Optimum spatial distribution patterns of microbial colonies can effectively restrict the spread of both organic and inorganic contaminants, reducing environmental impacts.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Environmental Sciences
Wenjie Xu, Quanlin Zhao, Zhengfang Ye, Jin Xu, Minghan Luo
Summary: The study demonstrated that microbial consortium showed great DNTS-degrading ability in soil. High temperature and humidity conditions were favorable for the degradation of DNTS. High-throughput sequencing (HTS) technology accurately identified the changes in microbial communities in soil.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Environmental Sciences
Nina-Sophie Keller, Goetz Hornbruch, Klas Lueders, Ulrike Werban, Carsten Vogt, Rene Kallies, Andreas Dahmke, Hans Hermann Richnow
Summary: Despite the increase in groundwater temperature induced by HTATES, both the composition and total cell number of groundwater microbial communities did not significantly change, suggesting that the diverse groundwater microbiome is resilient to short-term heat stress.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)