Article
Environmental Sciences
Linjun Gao, Shuya Wang, Xu Xu, Jinli Zheng, Tianming Cai, Shuyu Jia
Summary: This study utilized metagenomic analysis to gain comprehensive insights into the bacterial community and its functions during industrial wastewater treatment. The results showed that the abundance of degradation genes related to organic pollutants was higher in the industrial samples, with specific bacterial hosts playing a key role. Industrial wastewater also induced alterations in the bacterial community.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xiurong Chen, Xueyang Hu, Quanling Lu, Yingying Yang, Shanshan Linghu, Xinyu Zhang
Summary: The study investigated the relationship between microbial structure and sludge organic toxicity caused by phenolic compounds during the acclimation of activated sludge by catechol, resorcinol and hydroquinone. The degradation rates and toxicity of the compounds were found to be related to the microbial community structure, with catechol exhibiting the highest sludge toxicity due to difficulty in degradation and accumulation of certain secondary metabolites. The microbial metagenomic analysis revealed specific bacteria and enzyme genes associated with each compound, impacting the overall sludge toxicity levels.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Shidi Liu, Daying Chen, Zhimin Wang, Minglu Zhang, Minghan Zhu, Meilin Yin, Tingting Zhang, Xiaohui Wang
Summary: The long-term effects of ibuprofen on nutrient removal, community compositions, and microbial interactions in the activated sludge system were explored in this study. Ibuprofen did not inhibit the removal of organic matters and nutrients, but significantly reduced microbial diversity and changed the bacterial community structure. Different phylogenetic populations had different responses to ibuprofen, with some increasing and others decreasing under ibuprofen stress. The study also found that ibuprofen reduced the overall network size and links, but led to a closer network with more efficient communication among microbes.
Article
Biotechnology & Applied Microbiology
Hui-jun Wu, Xian-yuan Du, Wen-jing Wu, Jin Zheng, Jia-yu Song, Jia-cai Xie
Summary: Petroleum hydrocarbon contamination is a major concern for the environment and public health. In this study, a microbial consortium capable of degrading petroleum hydrocarbons was enriched using crude oil. 16S rRNA gene analysis revealed the structural characteristics of this community, while metagenomic analysis identified the specific microbial organisms and metabolic pathways involved in the degradation of cyclohexane and BTEX components. The results demonstrated the synergistic interactions between different bacterial genera during the hydrocarbon degradation process.
Article
Green & Sustainable Science & Technology
Yabing Xiao, Yao Shen, Bin Ji
Summary: This research focused on cultivating MBGS from activated sludge by inoculation. The results showed that inoculation helped in the successful formation of MBGS within a short period of time, and achieved stable removal of organics, ammonia, and phosphorus. Functional microbial communities, including phosphorus accumulating organisms, were enhanced by the inoculation.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Linlin Cao, Yongde Liao, Chengyuan Su, Linqin Tang, Zhifei Qi, Lixin Wei, Jinyan Wu, Shu Gao
Summary: The study found that perfluorooctanoic acid has a negative impact on the COD removal of anaerobic granular sludge, but this effect gradually weakens with microbial adaptation. PFOA also inhibits protein content in EPS and INT activity of anaerobic granular sludge, while reducing the relative abundance of certain bacteria.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Microbiology
Shohei Yasuda, Toshikazu Suenaga, Laura Orschler, Shelesh Agrawal, Susanne Lackner, Akihiko Terada
Summary: This study focused on utilizing mixed microbial communities to upcycle wastes into valuable products, demonstrating the potential of gene-centric approach in screening production potentials from mixed culture biomass. The microbial community of activated sludge from a landfill leachate treatment plant showed capabilities in producing valuable substances, indicating the feasibility and effectiveness of applying this approach in engineered systems for resource recovery.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Agricultural Engineering
Wei Li, Yuming Zhen, Nan Li, Hengqi Wang, Minghui Lin, Xiuting Sui, Wanying Zhao, Ping Guo, Jianguo Lin
Summary: Different types of microbial aggregates have significant effects on bacterial community characteristics and pollutant removal. Specific metabolic pathways for sulfur and nitrogen pollutants in the desulfurization-denitrification process were proposed. Sulfur-oxidizing bacteria and sulfur-reducing bacteria play distinct roles in suspended sludge and biofilms.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Xiuli Chen, Ying Zhu, Jianfei Chen, Shuang Yan, Shuguang Xie
Summary: In this study, a novel TC-degrading bacterium, Sphingobacterium sp. WM1, was successfully isolated from activated sludge. The strain exhibited a remarkable performance in degrading TC and genomic analysis uncovered the presence of three functional tetX genes. Transcriptome and proteomics analysis revealed the molecular mechanisms involved in TC degradation, with the upregulation of transmembrane transport and accelerated electron transport playing key roles. The potent TC degradation capacity of strain WM1 shows promise for enhancing TC clean-up strategies.
Article
Environmental Sciences
Ayixon Sanchez-Reyes, Itzel Gaytan, Julian Pulido-Garcia, Manuel Burelo, Martin Vargas-Suarez, M. Javier Cruz-Gomez, Herminia Loza-Tavera
Summary: Plastic accumulation is a worldwide problem and polyurethane is a particularly difficult plastic to degrade. This study explores the ability of the BP6 microbial community to degrade a commercial coating containing a polyether polyurethane copolymer and various additives. The study identifies new metabolic pathways and suggests that the BP6 community could be a potential tool for polyurethane bio-recycling.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Jiateng Liu, Guangyu Chu, Qianzhi Wang, Zhiming Zhang, Shuailing Lu, Zonglian She, Yangguo Zhao, Chunji Jin, Liang Guo, Junyuan Ji, Mengchun Gao
Summary: The effect of salinity on the nitrogen removal performance and microbial community of activated sludge was investigated in a sequencing batch reactor. The study found that low salinity has a minimal effect on the nitrification performance of activated sludge, but high salinity can lead to a decline in nitrogen removal performance. Salinity inhibits microbial activity and affects the transport pathway. Osmotic imbalance is the main cause of decreased nitrogen removal performance in activated sludge at high salinity.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Yicheng Wu, Zhuoyi Zhou, Haiyan Fu, Peng Zhang, Yue Zheng
Summary: Dual-chamber microbial fuel cells (MFCs) were used for the simultaneous degradation of nonylphenol and electricity generation. Metagenomic sequencing revealed the dominant microbial community and gene function in the anodic biofilm. The metabolic pathways of nonylphenol were suggested to be divided into the oxidation of aromatic ring and the fission of alkyl chain.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Sarah AlDhafiri, Yin-Ru Chiang, Ashraf M. El Nayal, Raeid M. M. Abed, Nasser Abotalib, Wael Ismail
Summary: This study aimed to investigate the estrone degradation pathway and identify key degrading bacteria in the activated sludge of a major wastewater treatment plant in Bahrain. It was found that estrone degradation proceeds via the 4,5-seco pathway and is most likely mediated by alphaproteobacterial taxa.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Mengqi Zheng, Hongjun Han, Jingxin Shi, Zhengwen Zhang, Wencheng Ma, Chunyan Xu
Summary: In this study, nano-Fe3O4@activated coke enhanced bio-system (FEBS) was found to efficiently treat aromatic organics in coal pyrolysis wastewater under limited-oxygen conditions. Metagenomic analyses revealed the mechanisms involved in aromatic ring-cleavage and the functional microbiome linkages. FEBS supplementation had the highest organic removal efficiency and maintained high biodegradability, with the degradation processes being driven by Fe3O4 redox reactions and microbial biofilm.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Mateusz Sobczyk, Agnieszka Pajdak-Stos, Edyta Fialkowska, Lukasz Sobczyk, Janusz Fyda
Summary: The study found that the species composition and community structure of activated sludge are greatly influenced by individual features of the treatment plants, with temperature being the most critical factor affecting changes in the microbial community. However, the reduction rates of COD, BOD5, SS, and TN were not sufficient to explain the variations in protozoa and metazoan community composition.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Environmental Sciences
Attila Csaba Kondor, Anna Viktoria Vancsik, Laszlo Bauer, Lili Szabo, Zoltan Szalai, Gergely Jakab, Gabor Maasz, Marta Pedrosa, Maria Jose Sampaio, Ana Rita Lado Ribeiro
Summary: This review provides a critical overview of research on the removal efficiency of priority substances and compounds of emerging concern through bank filtration, discussing influencing factors and future challenges. The findings show that the efficiency of bank filtration is influenced by multiple factors and varies for different substances.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinyan Wang, Shuai Zhang, Huihui Yan, Zhao Ma, Yunshan Zhang, Haining Luo, Xueli Yang
Summary: This study investigated the association between ambient PM2.5, O3 pollution, and ovarian reserve in reproductive-aged Chinese women. The results showed that increased exposure to PM2.5 and O3 was associated with decreased AMH levels, indicating reduced ovarian reserve. Notably, the effects of O3 exposure on ovarian reserve were different from those of PM2.5 exposure.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Tingting Ma, Yanjuan Ding, Fengjiao Xu, Chen Zhang, Min Zhou, Ya Tang, Yanrong Chen, Yating Wen, Rufei Chen, Bin Tang, Shigui Wang
Summary: The dragonfly species Orthetrum albistylum can accumulate heavy metals, and its heat shock protein genes have the potential to serve as biomarkers for monitoring environmental pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Naoto Ishiwaka, Koya Hashimoto, Masayoshi K. Hiraiwa, Francisco Sanchez-Bayo, Taku Kadoya, Daisuke Hayasaka
Summary: Systemic insecticides and rising temperatures have combined effects on the abundance of Odonata nymphs in paddy fields. The standalone effect of insecticide exposure decreased the Odonata community, while nymphs decreased synergistically with temperature rise in paddy water. However, the impacts of each stressor alone varied among species.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Marco Vecchiato, Carlo Barbante, Elena Barbaro, Francois Burgay, Warren R. L. Cairns, Alice Callegaro, David Cappelletti, Federico Dallo, Marianna D'Amico, Matteo Feltracco, Jean-Charles Gallet, Andrea Gambaro, Catherine Larose, Niccolo Maffezzoli, Mauro Mazzola, Ivan Sartorato, Federico Scoto, Clara Turetta, Massimiliano Varde, Zhiyong Xie, Andrea Spolaor
Summary: The Arctic region is facing contamination from long-range pollution and local human activities. Polycyclic Aromatic Hydrocarbons (PAHs) are used as environmental indicators for emission, transport, and deposition processes. Research conducted in the Arctic surface snow in Ny-Ålesund, Svalbard from October 2018 to May 2019 shows that long-range inputs of PAHs mainly occur in winter, while the most abundant analyte retene exhibits opposite seasonal trends.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Maoshui Zhuo, Zhijie Chen, Xiaoqing Liu, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: This paper discusses the application of three catalytic processes (photocatalysis, electrocatalysis, and biocatalysis) in the management of microplastic pollution, and introduces the efficiency and catalytic mechanisms of different catalysts. It also proposes the development prospects for sustainable management of microplastic pollution.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Shiyu Chen, Zhenzhen Shi, Qiang Zhang
Summary: In this study, a human physiologically based pharmacokinetic (PBPK) model of diethyl phthalate (DEP) was developed to assess its toxicity. The model considers the distribution and metabolism of DEP and its active metabolite monoethyl phthalate (MEP) in different tissue compartments. Sensitivity analysis and Bayesian Markov chain Monte Carlo (MCMC) simulations were performed to evaluate the uncertainty and variability of the model parameters. The results suggest that dermal absorption is an important route of exposure to DEP in the environment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Bangguo Wang, Lijing Wang, Wenxi Cen, Tao Lyu, Peter Jarvis, Yang Zhang, Yuanxun Zhang, Yinghui Han, Lei Wang, Gang Pan, Kaili Zhang, Wei Fan
Summary: This study investigates the feasibility and mechanisms of a chemical-free nanobubble-based AOP for treating organic micropollutants in water. The results show that the oxygen nanobubble AOP has a significantly higher removal efficiency compared to air and nitrogen nanobubbles. The treatment performance is not affected by pH and the presence of ions. Higher initial concentrations of the micropollutant lead to slower treatment processes, but similar removal performance is achieved in the end. The presence of organic matter reduces the removal rate of the micropollutant. The results have practical feasibility for water and wastewater treatment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yingmei Huang, Jicai Yi, Yao Huang, Songxiong Zhong, Bin Zhao, Jing Zhou, Yuxuan Wang, Yiwen Zhu, Yanhong Du, Fangbai Li
Summary: This study investigates the impact of biochar on methylmercury (MeHg) accumulation in rice. The results show that biochar reduces MeHg levels in paddy soils by decreasing bioavailable Hg and microbial Hg methylation. Additionally, biochar decreases the uptake and translocation of MeHg in rice plants, resulting in a reduction of MeHg accumulation in rice grains.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Nengde Zeng, Fei Huang, Jiani Du, Chenghao Huang, Qian Yang, Xinhua Zhan, Baoshan Xing
Summary: This study investigates the protein targets and protein-ligand interactions related to PAH contamination in crop xylem sap using computational tools. The results show that phenanthrene has a more pronounced effect on the xylem sap proteins of maize and wheat, with maize DEPs associated with lipid biosynthesis and wheat DEPs exhibiting an increase in ABC transporters. This study provides insights into the regulation and movement of PAHs within plant xylem.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinwei Chen, Hao Ma, Run Wang, Man Wang, Binbin Zhu, Yanqing Cong, Xiayue Zhu, Guoqin Wang, Yi Zhang
Summary: Co3O4/TiO2-NRs electrodes with excellent photoresponse were prepared via plasma-assisted modification of Co3O4 on TiO2. The combination of Co3O4 and TiO2 improved the light utilization efficiency and showed potential for degradation of pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Wenjing Ji, Liying Song, Jing Wang, Hongqing Song
Summary: This study conducted a life-cycle assessment to examine the correlation between natural gas consumption and carbon emissions in different end uses in China. The results showed that both natural gas consumption and life-cycle carbon emissions have been increasing since 2017. Significant variations in NG life-cycle carbon emissions were found across different provinces and sectors, highlighting the need for targeted efforts to reduce carbon emissions.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Youyi Chen, Boxuan Zhang, Pojun Zhang, Guogui Shi, Hao Liang, Wu Cai, Jingyu Gao, Sumin Zhuang, Kaiyin Luo, Jiaqi Zhu, Chaoxiang Chen, Kunyu Ma, Jinrong Chen, Chun Hu, Xueci Xing
Summary: The synergistic effects of trace sulfadiazine and cast-iron corrosion scales on the formation of disinfection by-products in drinking water distribution systems were investigated. The presence of magnetite resulted in increased concentrations of DBPs due to the higher microbial activity and enhanced microbial extracellular electron transport pathway. The study highlights the importance of considering trace antibiotics pollution and corrosion scales in water sources for DBP control.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Bishwa Raj Pokharel, Vijay Sheri, Manoj Kumar, Zhiyong Zhang, Baohong Zhang
Summary: This review summarizes the interactions, uptake, and transport of aluminum nanoparticles (Al-NPs) in plants, highlighting their negative effects on plant growth and development, as well as their potential to alter plant defense systems and gene expression.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yonglu Wang, Fengsong Zhang, Xiaoyong Liao, Xiao Yang, Guixiang Zhang, Liyun Zhang, Chaojun Wei, Pengge Shi, Jiongxin Wen, Xiaorong Ju, Can Xu, Yang Liu, Ying Lan
Summary: This study aims to explore the effects of thiencarbazone-methyl center dot isoxaflutole on soil microflora and the potential mitigation mechanisms to bacterial communities. It was found that increasing the application of thiencarbazone-methyl center dot isoxaflutole resulted in increased stress on soil bacterial community structure and diversity. Increasing soil pH was recognized as a key factor in improving the diversity and structure of soil microflora. Supplemental use of nitrapyrin or modified attapulgite can increase soil pH and improve bacterial diversity.
ENVIRONMENTAL POLLUTION
(2024)