Article
Engineering, Environmental
Huimin Wang, Xiaoyan Qi, Siyu Chen, Xia Wang
Summary: In this study, breeding wastewater was efficiently treated using an electroactive microbial community screened from the native microorganisms of the wastewater in microbial fuel cells. The results showed good power generation and high pollutants removal efficiency. The morphology characterization demonstrated the formation of a thick biofilm by the screened electroactive microbial community. Microbial community analysis revealed an increase in microorganisms associated with electricity generation and pollutant degradation, while pathogenic microorganisms were greatly decreased. These findings suggest that the MFC constructed using the screened electroactive microbial community can be a sustainable method for breeding wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Jiaxin Li, Bo Song, Chongchao Yao, Zhihao Zhang, Lei Wang, Jing Zhang
Summary: This study demonstrates the impact of S-doped NiFe2O4 NMs on the microbial community network in bioelectrochemical systems, highlighting the regulation of iron-based nanomaterials on the microbial consortia. It also emphasizes the significance of the globality of microbial community.
Article
Environmental Sciences
Mengjie Fan, Xinglei Zhuang, Zhen Gao, Zuopeng Lv, Weiliang Dong, Fengxue Xin, Yingwen Chen, Honghua Jia, Xiayuan Wu
Summary: In this study, nano-FeS hybridized electrode biofilms were applied as biocathodes in microbial fuel cells (MFCs) for Cr6+ removal. The Ca-FeS biocathode exhibited the best performance, achieving high power density and Cr6+ removal efficiency. The synergistic effects of nano-FeS and microorganisms enhanced the reduction of Cr6+ and improved the microbial activity, demonstrating a novel strategy for toxic pollutant treatment in bioelectrochemical systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Shu-Hui Liu, Wun-Jie Huang, Chi-Wen Lin, Ting-Jun Zhu
Summary: The study developed a single-medium, membraneless microbial fuel cell to investigate Cu(II) migration in sediment, showing that a biocathode can enhance Cu(II) electromigration efficiency, and optimizing cathode conditions can improve Cu(II) removal efficiency. Additionally, dominant bacteria phyla capable of degrading organic matter, generating electricity, and tolerating Cu(II) were discovered in the system.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Geochemistry & Geophysics
Jing Jin, Charles Amanze, Richmond Anaman, Xiaoya Zheng, Guanzhou Qiu, Weimin Zeng
Summary: This study investigated the changes in microbial community in microbial fuel cells (MFCs) under acid stress. The acidic pH of the anolyte affected the electron output capacity and microbial abundance in MFCs. The study also examined the recovery of Cu2+ from acid mine drainage (AMD) and found that the removal rate of Cu2+ decreased as the anode pH decreased.
Review
Engineering, Environmental
Antonio Castellano-Hinojosa, Alejandro Gonzalez-Martinez, Clementina Pozo, Jesus Gonzalez-Lopez
Summary: This study conducted a systematic review of the diversity and potential relationships of electroactive microorganisms (EAMs) and non-electrochemically-active microorganisms (non-EAMs) in microbial electrochemical technologies (METs). The results showed that both EAMs and non-EAMs are highly diverse in METs and play important roles in efficient energy production and other treatment processes.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Food Science & Technology
Xueao Ji, Longyun Zhang, Xiaowei Yu, Fujiang Chen, Fengxue Guo, Qun Wu, Yan Xu
Summary: The initial microbial community is crucial for the quality of fermented foods. This study examined the microbial succession during stacking and alcoholic fermentation of sesame flavor-type baijiu using high-throughput sequencing and statistical methods. A strategy for selecting the initial microbial community in alcoholic fermentation was proposed based on the results. The study also developed a succession distance-guided approach to improve the quality of baijiu.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Chemistry, Physical
Zongyang Shi, Huiqin Luo, Zhiqin Li, Yu Xiang, Yan Wu, Kaiming Yang, Fei Guo
Summary: This study proposes a novel configuration for sediment microbial fuel cells (SMFCs) by embedding a cylindrical borehole in the sediment layer to reduce internal resistance, enhance mass transfer, and increase power density. Experimental results show that SMFC-3 with a borehole depth of 3 cm produces the highest maximum power density, which is 25.5% and 65.6% higher than that in SMFC-6 with a borehole depth of 6 cm and the control group SMFC-C, respectively. The improved power performance in SMFC-3 is mainly attributed to the greatly reduced internal resistance and suitable pH conditions for cathodic reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Yanli Guo, Zhuang Chen, Shaohui Zhang
Summary: This study investigated a new startup strategy and operation performance for methane-fueled microbial fuel cells (MFCs), successfully starting up the MFC in a short time by pre-cultivating an adapted culture and optimizing conditions with increased concentrations of molybdenum and tungsten. The methane-fueled MFC achieved a maximum power density of 166 mW/m(3), demonstrating the effectiveness of the new startup strategy and operational conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Paniz Izadi, Marten Niklas Gey, Nicolas Schlueter, Uwe Schroeder
Summary: The study focused on the formation of combined electrogenic/electrotrophic biofilms from marine sediments for microbial energy storage systems. It was found that biofilms from the North Sea and Baltic Sea exhibited similar anodic current densities, but differed significantly in microbial composition. The charge-discharge behavior revealed that the electrochemical conversion of biogenic elemental sulfur was the major mechanism during the process.
Article
Materials Science, Multidisciplinary
Rahul Kandpal, Mohammad Shahadat, Syed Wazed Ali, Chengzhi Hu, Shaikh Ziauddin Ahammad
Summary: In this study, different PANI-supported nanocomposite electrodes were prepared for material-specific enrichment of electrogens on the surface of a multi-anode assembly based MFC. Significant microbial community development was confirmed on all anodes through SEM analysis. The developed anodes in the MFC showed varying exoelectrogenic and electrotrophic activities, indicating potential applications in treating complex wastewaters.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Environmental Sciences
Nan Ding, Chunji Jin, Nannan Zhao, Yangguo Zhao, Liang Guo, Mengchun Gao, Zonglian She, Junyuan Ji
Summary: This study improved the electrical performance of sediment microbial fuel cell (SMFC) by modifying the anode carbon felts and investigated the degradation effects of enrofloxacin and microbial community structure. The results showed that the SMFC system with modified anode carbon felt exhibited the best power production performance and effectively degraded low concentrations of enrofloxacin.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Haobin Huang, Yonggang Yang, Shan Yang, Xunan Yang, Youda Huang, Meijun Dong, Shaofeng Zhou, Meiying Xu
Summary: This study found that adding a specific microorganism, Lysinibacillus varians GY32, into sediment microbial electrochemical systems (SMESs) can significantly enhance the mass transfer and sulfate reduction efficiency in sediments. It can also alter the diffusion resistances and sulfate concentrations in sediments. These findings provide insights into the role of filamentous electroactive microorganisms (f-EAMs) in biogeochemical cycles and sediment remediation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
L. Szydlowski, J. Ehlich, I. Goryanin, G. Pasternak
Summary: The study compared the electroactive capabilities of microbial communities from four mine drainages using a newly designed 96-well-plate array of microbial fuel cells. It demonstrated that the 96-well MFC array is a suitable platform for high-throughput screening, selection, and enrichment of electroactive consortia. Environmental conditions and physical and chemical parameters were found to be crucial for developing an efficient electroactive community.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Xuan Wang, Yingying Zhi, Yun Chen, Nan Shen, Guoxiang Wang, Yan Yan
Summary: Evidence suggests that phosphorus deposited in sediment for many years can be released by microbial activity, causing harmful algal blooms in lakes. Sediment microbial fuel cells (SMFC) have been identified as an in-situ method for limiting phosphorus release. However, the impact of SMFC on the micro-environment near the electrodes, which can affect phosphorus distribution, has been overlooked. This study successfully established SMFC systems to investigate their influence on phosphorus species and spatial distribution in lake sediments.
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)