Article
Multidisciplinary Sciences
Jon S. Graf, Sina Schorn, Katharina Kitzinger, Soeren Ahmerkamp, Christian Woehle, Bruno Huettel, Carsten J. Schubert, Marcel M. M. Kuypers, Jana Milucka
Summary: Mitochondria are specialized organelles in eukaryotic cells that evolved from a free-living bacterial ancestor through endosymbiosis about 2 billion years ago. They have adapted to different habitats and some eukaryotes with reduced mitochondria obtain energy through fermentation.
Article
Chemistry, Multidisciplinary
Shuang Gan, Min Zhang, Yahong Zhou, Caijuan Guo, Shuai Yang, Yan Xie, Xinzhe Wang, Lin Sun, Zhuo Ning
Summary: This study quantitatively analyzed the impact of microbially-driven mineralization of BTEX on water-rock interaction. Nitrate and toluene were used as the electron acceptor and BTEX, respectively. A mathematical model was established and validated with experiments, demonstrating the main role of H+ in CaCO3 dissolution or precipitation. The model provided a tool for assessing toluene biodegradation by monitoring groundwater ion concentrations.
APPLIED SCIENCES-BASEL
(2023)
Article
Agricultural Engineering
Lili Zheng, Bing Li, Tingting Yin, Chenjing Liu, Hai Lin
Summary: The novel Paracoccus denitrificans AC-3 strain demonstrated exceptional purification capability for high concentrations of ammonia nitrogen and calcium. It also showed excellent adaptability to a wide range of pH and high levels of ammonia nitrogen and calcium. The removal of ammonia nitrogen involved assimilation and heterotrophic nitrification aerobic denitrification, while calcium was removed by forming calcium carbonate through the action of carbonic anhydrase and carbonate and bicarbonate ions obtained from carbon dioxide hydration. The resulting calcite-like CaCO3 exhibited unique morphology and composition.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Chenchen Huan, Zhenhong Wang, Xinyu Tong, Yong Zeng, Yang Liu, Yapeng Cheng, Qingyang Lyu, Zhiying Yan, Xueping Tian
Summary: A pilot-scale biological trickling filter (BTF) reactor packed with different fillers was used to evaluate the removal performance of H2S and NH3, and several parameters were investigated. The results showed that BTF filled with pine bark exhibited better removal efficiency under various conditions. The addition of heterotrophic bacterium enhanced the removal efficiency, even with reduced packing height. The study provides a foundation for the application of heterotrophic microorganisms in BTF for improved biological deodorization efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Ruijie Zhang, Xumian Wang, Amjad Ali, Junfeng Su, Zhao Wang, Jiawei Li, Yu Liu
Summary: Aquabacterium sp. CZ3 strain can perform microbially induced calcium precipitation (MICP) using phenol as the carbon source under facultative anaerobic condition, effectively removing nitrate, fluoride, calcium, and phenol from contaminated water. The study determined the optimal conditions for denitrification and fluoride removal, and explained the utilization of phenol as a co-substrate by microorganisms.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Tong Liu, Yutian Hu, Nan Chen, Qiaochong He, Chuanping Feng
Summary: This study investigated the performance of pyrite autotrophic denitrification (PAD) in the presence of EDTA and uncovered the mechanism of anaerobic pyrite oxidation and microbial mineral transformation. The electrochemical threshold for converting pyrite into bioavailable forms in PAD conditions was found to be around 200 mV, and the presence of Fe3+-EDTA complexes accelerated pyrite oxidation. Higher abundances of sulfur- and nitrogen-cycling genera were observed in cultures containing EDTA, indicating increased functional diversity and redundancy in the microbial community. These findings contribute to a better understanding of pyrite oxidation under anaerobic neutral conditions and suggest practical applications for PAD.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Tianjing Shi, Xinying Liu, Yiting Xue, Fang He, Yan Dang, Dezhi Sun
Summary: The study found that applying a potential of +0.8 V significantly improved the efficiency of the denitrifying anaerobic methane oxidation process, increasing the rate of nitrite conversion to nitrogen and promoting the enrichment of DAMO functional bacteria. LC-MS metabolomics analysis showed that the regulation of key metabolites by applied potential was beneficial for enhancing the DAMO process.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Tianjing Shi, Xinying Liu, Yiting Xue, Fang He, Yan Dang, Dezhi Sun
Summary: In this study, it was found that applying potential significantly influenced the denitrifying anaerobic methane oxidation (DAMO) process. The optimal potential of +0.8 V increased the nitrite removal rate by 4.5 times and facilitated the enrichment of DAMO functional bacteria. Metabolomics analysis showed that applying potential affected the regulation of key metabolites related to metabolic pathways, leading to positive effects on DAMO process. Applying electric potential could be a useful strategy in methane and nitrogen removal.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Yu Liu, Amjad Ali, Jun-Feng Su, Kai Li, Rui-Zhu Hu, Zhao Wang
Summary: Microbial-induced calcium carbonate precipitation (MICP) is a technique that utilizes microorganism metabolism to form CaCO3 precipitation through the combination of CO32- and free Ca2+. It has gained attention in water treatment due to its advantages of simultaneous removal of multiple pollutants, environmental protection, and ecological sustainability. This article reviews the mechanism of MICP at both intra- and extra-cellular levels and summarizes the parameters that affect the MICP process. It also discusses the current status of MICP application in practical engineering, outlines the technical difficulties faced, and highlights future research directions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Plant Sciences
Jianshuang Gao, Shunyao Zhuang, Renyi Gui
Summary: This study innovatively proposes subsurface pipe aeration as an effective measure to mitigate the degradation of bamboo forests caused by soil hypoxia from organic material mulching. Aeration increases soil oxygen concentration, shoot yield, and root growth, and regulates phytohormone concentrations and Aux/IAAs expression, which reduces anaerobic enzyme activities.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Geochemistry & Geophysics
Jean-Philippe Blouet, Sandra Arndt, Patrice Imbert, Pierre Regnier
Summary: This study explores the quantification of seep carbonates and concludes that anaerobic oxidation of methane is the main driver of carbonate precipitation. High fluid velocities lead to full cementation providing a lower bound estimate of the amount of leaked CH4, while sedimentation rate and water depth play major roles in seep carbonate formation.
Article
Geochemistry & Geophysics
Qizhi Hu, Zekai Wang
Summary: This study investigated the solidification effect of different calcium sources on crushed silty clay using microbial solidification technology. The results showed that the solidification strength decreased gradually with the increase in concentration when using calcium chloride and calcium acetate to solidify the clay. However, calcium gluconate at a concentration of 1.0 mol/L exhibited the highest solidification strength.
Article
Green & Sustainable Science & Technology
Weifeng Deng, Litao Wang, Lang Cheng, Wenbo Yang, Dawen Gao
Summary: This paper reviewed the recent advances of anammox based processes for mature landfill leachate treatment and suggested some improvements to enhance the process efficiency.
Article
Green & Sustainable Science & Technology
Xiaoli Su, Feiyun Sun, Jianjun Zhang, Dingyu Xing, Xiaoying Li, Zi Song, Liang Feng, Zhichao Huang, Ang Li
Summary: This study investigated the interaction between functional microbiota succession and different electron acceptors in the degradation of anaerobic sulfamethoxazole (SMX). The results showed that the presence of sulfate as an electron acceptor was more beneficial for SMX degradation and system stability. However, competition between autotrophic nitrate-reducing sulfate-oxidizing bacteria and sulfate-reducing bacteria resulted in ineffective SMX degradation. The study highlights the importance of selecting the appropriate electron acceptor for the removal of antibiotics in anaerobic degradation processes.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Hengli Wang, Leng Tian, Kai Kang, Bo Zhang, Guangming Li, Kaiqiang Zhang
Summary: This study demonstrates the feasibility of using ultrasonic treatment to alter wettability of minerals and provides detailed characterization and analysis of the mechanism at the oil-rock interface. The results indicate that as treatment time increases, the roughness of rock surface and oil/rock interface is enhanced, with diffusions of clays and changes in functional groups observed. These findings offer valuable insights into the surface chemistry of oil-rock wettability alterations for subsurface energy production and carbon sequestration.
Article
Geosciences, Multidisciplinary
Lili Liang, Cong-Qiang Liu, Xiangkun Zhu, Bryne T. Ngwenya, Zhongliang Wang, Liuting Song, Jin Li
JOURNAL OF EARTH SCIENCE
(2020)
Article
Microbiology
Samuel J. Payler, Jennifer F. Biddle, Barbara Sherwood Lollar, Mark G. Fox-Powell, Thomas Edwards, Bryne T. Ngwenya, Sean M. Paling, Charles S. Cockell
FRONTIERS IN MICROBIOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Luke M. M. Kinsman, Rosa A. M. Crevecoeur, Amrita Singh-Morgan, Bryne T. Ngwenya, Carole A. Morrison, Jason B. Love
Article
Biochemistry & Molecular Biology
Luke M. M. Kinsman, Carole A. Morrison, Bryne T. Ngwenya, Jason B. Love
Article
Environmental Sciences
Nyekachi C. Adele, Bryne T. Ngwenya, Kate Heal, J. Frederick W. Mosselmans
Summary: Inoculation of soil or seeds with plant growth promoting bacteria can ameliorate metal toxicity to plants by changing metal speciation in plant tissues. The speciation changes, particularly an increase in organic acids and thiol complexes, were found significant between the rhizosphere and the root. This study suggests that changes in metal speciation may be driven by microbial metabolism or plant responses.
ENVIRONMENTAL POLLUTION
(2021)
Article
Geography, Physical
Justine Perry T. Domingo, Mikael Attal, Simon M. Mudd, Bryne T. Ngwenya, Carlos Primo C. David
Summary: This study revealed the importance of disturbance extent and sediment pathways in controlling sediment transport in mining-disturbed areas. Sediment flushing mainly occurs in the most disturbed sub-catchments during the wet season, with hysteresis effects being significant. Floodplain sediment recycling plays a dominant role in sediment delivery at both reach and catchment scales, especially towards the end of the wet season.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Environmental Sciences
Chiara Leonardi, Valeria Toscano, Claudia Genovese, Julian Frederick Willem Mosselmans, Bryne Tendelo Ngwenya, Salvatore Antonino Raccuia
Summary: The study showed that all plants survived until the end of the experiment, with growth stimulation in the presence of low concentrations of As and Cd. Biomass production was mainly allocated in roots under As treatment and shoots under Cd treatment. Cd EXAFS analysis suggested that tolerance to high concentrations of both metals may be linked to complexation of Cd with oxygen-containing ligands in both root and leaf biomass.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Yarui Wang, Muhua Feng, Jianjun Wang, Xinfang Chen, Xiangchao Chen, Xian Du, Fan Xun, Bryne Tendelo Ngwenya
Summary: This study reveals that algal debris can enhance total carbon oxidation rate in sediments, facilitating SOM mineralization with iron reduction and sulfate reduction playing crucial roles in the early stages. Furthermore, algal debris has a positive priming effect on SOM mineralization, intensifying the mineralization process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Fisheries
Jessica Arnull, A. Meriwether W. Wilson, Kitty Brayne, Kyle Dexter, Angelo G. Donah, Charlotte L. A. Gough, Timothy Kluckow, Bryne Ngwenya, Alexander Tudhope
Summary: A study in southwest Madagascar found that high density sea cucumber farming can significantly increase the leaf extension rate of the dominant seagrass species Thalassia hemprichii, but has no significant impact on another dominant seagrass species, Cymodocea serrulata. This suggests that sea cucumber farming may have important ecological co-benefits for seagrass habitats in the tropical Indo-Pacific region.
AQUACULTURE ENVIRONMENT INTERACTIONS
(2021)
Article
Geochemistry & Geophysics
Olivier Pourret, Pallavi Anand, Sandra Arndt, Pieter Bots, Anthony Dosseto, Zimin Li, Johanna Marin Carbonne, Jennifer Middleton, Bryne Ngwenya, Amy J. Riches
Summary: Diversity drives innovative research at every step along the scientific path. Professional societies have the power to define and promote the success of all scientists through proactive advocacy, inclusive mentorship, awards, and leadership. Efforts are being made to increase the diversity and inclusion of awardees, aiming for a more diverse representation of excellent science.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Green & Sustainable Science & Technology
Eike M. Thaysen, Sean McMahon, Gion J. Strobel, Ian B. Butler, Bryne T. Ngwenya, Niklas Heinemann, Mark Wilkinson, Aliakbar Hassanpouryouzband, Christopher McDermott, Katriona Edlmann
Summary: Storage of hydrogen in depleted oil and gas fields is proposed to address imbalances in the renewable energy sector, but microbial processes in the subsurface may pose risks. Evaluation of data from 42 fields showed that high temperatures can inhibit hydrogen-consuming processes, with only a few fields able to sustain microbial growth under favorable conditions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Multidisciplinary Sciences
Luke M. M. Kinsman, Bryne T. Ngwenya, Carole A. Morrison, Jason B. Love
Summary: This study demonstrates a simple tertiary diamide precipitation method for selectively precipitating gold from aqueous solutions, showing potential applications in metal separation and recycling industries.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Joseph G. O'Connell-Danes, Bryne T. Ngwenya, Carole A. Morrison, Jason B. Love
Summary: Researchers report the selective precipitation of light rare-earth elements as supramolecular capsules from acidic, industrially relevant, mixed-metal solutions. This self-assembly approach, which exploits size and shape complementarity, has the potential to integrate into conventional processes.
NATURE COMMUNICATIONS
(2022)
Article
Geochemistry & Geophysics
Dylan L. Price, Ian B. Butler, Bryne T. Ngwenya, Linda A. Kirstein, Frank McDermott, Tiina O'Neill
Summary: Naturally occurring rare earth element (REE) bearing carbonate minerals contain different REEs, yet efforts to synthesize and understand their formation mechanisms have hitherto used single REE end-member experiments. In synthesising a mixed La-Nd carbonate, we find that the mixed REE carbonate has a broadly similar crystallisation pathway as its end-members with key differences. This research highlights the importance of considering multiple REEs simultaneously when studying the precipitation mechanisms of REE carbonates.
Correction
Green & Sustainable Science & Technology
Eike M. Thaysen, Sean McMahon, Gion J. Strobel, Ian B. Butler, Bryne Ngwenya, Niklas Heinemann, Mark Wilkinson, Aliakbar Hassanpouryouzband, Chris I. McDermott, Katriona Edlmann
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)