Article
Energy & Fuels
Siti Khodijah Chaerun, Erian Jeremy, Raudhatul Islam Chaerun, Riri Lidya Fathira, Muhammad Iqbal Toynbee, Supandi Supandi, Tsutomu Sato
Summary: This study evaluated the effectiveness of 54 bacterial strains in treating coal waste slurry and AMD, and found that the bacterium Citrobacter freundii (strain SKC-4) showed superior performance in reducing the suspended solids content. The study also revealed the interaction between bacteria and clay minerals in the coal waste slurry, and detected the presence of extracellular polymeric substance (EPS) through SEM-EDS analysis.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2023)
Article
Engineering, Environmental
Maria Garcia-Rios, Laurent De Windt, Linda Luquot, Corinne Casiot
Summary: By developing a reactive transport model, the mechanism of natural attenuation in high-As acid mine drainage was studied, revealing that the fast Fe(II) oxidation rate and slow As(III) oxidation rate are among the controlling factors.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Jiahui Zou, Yan-Ying Qiu, Hao Li, Feng Jiang
Summary: This study proposed a novel chemoautotrophic elemental sulfur disproportionation (SD) process as an alternative to conventional biological sulfidogenic processes (BSPs) for the treatment of organic-deficit acid mine drainage (AMD). The SD process achieved a stable high-rate sulfide production without the need for exogenous organic substrates, and it effectively removed over 99% of the influent metals from AMD.
Article
Green & Sustainable Science & Technology
Yanrong Dong, Ziqing Gao, Junzhen Di, Dong Wang, Zhenhua Yang, Xuying Guo, Ying Li, Xiaotong Zhu, Guixian Wang
Summary: To treat acid mine drainage (AMD) with high concentrations of Fe2+, Mn2+, and SO42-, a combination of coal gangue (CG) and sulfate-reducing bacteria (SRB) was employed. The effects of CG dosage, SRB inoculation concentration, and temperature on AMD treatment were determined. The removal mechanisms of SO42-, Fe2+, and Mn2+ using coal gangue-loaded SRB in the Haizhou open-pit mine were revealed. The results showed the best performance of coal-gangue-loaded SRB in repairing AMD in the Haizhou open-pit mine.
Article
Biotechnology & Applied Microbiology
A. M. Ilin, C. M. van der Graaf, I Yusta, A. Sorrentino, I Sanchez-Andrea, J. Sanchez-Espana
Summary: Sulfate reduction can improve the acidity and metal concentrations in acid mine drainage environments. Addition of suitable organic carbon sources can stimulate sulfate-reducing bacteria activity. Glycerol amendment triggered the production of bio-sulfides, resulting in pH increase and metal sulfide formation.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
Malin Bomberg, Hanna Miettinen, Paivi Kinnunen
Summary: Blasting and fracking in mines can cause leaching of metals and acidification of water systems. This study investigated the dissolution of copper and the changes in microbial communities in a microcosm experiment simulating different water conditions. The results showed that copper dissolution was not solely caused by bacteria, but also involved abiotic reactions.
Article
Environmental Sciences
Di Chen, Qiyan Feng, Haoqian Liang
Summary: The study revealed that long-term AMD pollution promoted the evolution of gamma-Proteobacteria and led to the formation of mutualistic interaction networks among microorganisms. Additionally, acidic pollution enhanced microbial functions, potentially serving as an adaptive mechanism for microbial survival in acidic environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Keishi Oyama, Kentaro Hayashi, Yusei Masaki, Takaya Hamai, Shigeshi Fuchida, Yutaro Takaya, Chiharu Tokoro
Summary: A passive treatment process using sulfate-reducing bacteria (SRB) was found effective in removing heavy metals from acid mine drainage (AMD), but the mechanism involved has been poorly understood. In this study, a sulfate-reducing column test was conducted with supplemental ethanol as an electron donor, and the reaction mechanism was investigated using geochemical modeling and X-ray absorption fine structure (XAFS) analysis. The results revealed that Cu was easily removed from the top surface of the column, while Zn and Cd depletion occurred in the middle of the column due to sulfide formation by SRB. Geochemical modeling and XAFS analysis confirmed the validity of the observation. These findings suggest that the developed geochemical model can be a useful tool in predicting heavy metal removal in AMD treatment with SRB.
Article
Environmental Sciences
Sandra Fischer, Carl-Magnus Morth, Gunhild Rosqvist, Sergey R. Chalov, Vasiliy Efimov, Jerker Jarsjo
Summary: An emerging solution in mine waste remediation is the use of biological processes, such as microbial sulfate reduction (MSR), to immobilize metals. This study applied isotopic fractionation and mixing analysis to detect MSR and its variation across two major mining regions in the Arctic part of Europe. The results indicate a range of catchment-scale MSR values and highlight the influence of terrain and vegetation conditions.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Ningke Fan, Yinhui Shu, Zhaona Xu, Difei Zhao
Summary: This paper discusses the causes and hazards of acid mine drainage, compares different treatment methods, particularly focusing on the research progress of sulfate-reducing bacteria method in recent years. It discusses the current research status in China and predicts future research directions.
FRESENIUS ENVIRONMENTAL BULLETIN
(2021)
Article
Multidisciplinary Sciences
Francois Delavat, Sara Mitri, Serge Pelet, Jan Roelof van der Meer
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2016)
Article
Microbiology
Nicolas Pradervand, Francois Delavat, Sandra Sulser, Ryo Miyazaki, Jan Roelof van der Meer
JOURNAL OF BACTERIOLOGY
(2014)
Article
Biotechnology & Applied Microbiology
Francois Delavat, Vincent Phalip, Anne Forster, Marie-Claire Lett, Didier Lievremont
MICROBIAL CELL FACTORIES
(2012)
Article
Environmental Sciences
Francois Delavat, Marie-Claire Lett, Didier Lievremont
SCIENCE OF THE TOTAL ENVIRONMENT
(2013)
Article
Genetics & Heredity
Nicolas Pradervand, Sandra Sulser, Francois Delavat, Ryo Miyazaki, Iker Lamas, Jan Roelof van der Meer
Article
Biochemical Research Methods
Francois Delavat, Adeline Bidault, Vianney Pichereau, Christine Paillard
JOURNAL OF MICROBIOLOGICAL METHODS
(2018)
Article
Microbiology
Francois Delavat, Roxane Moritz, Jan Roelof van der Meer
Article
Biology
Nicolas Carraro, Xavier Richard, Sandra Sulser, Francois Delavat, Christian Mazza, Jan Roelof van der Meer
Article
Microbiology
Amandine Morot, Sahar El Fekih, Adeline Bidault, Alizee Le Ferrand, Albane Jouault, Javid Kavousi, Alexis Bazire, Vianney Pichereau, Alain Dufour, Christine Paillard, Francois Delavat
Summary: The study characterized the genetic basis of virulence of Vibrio harveyi ORM4 towards the European abalone. LuxO gene was identified as crucial for the virulence, affecting swimming motility, biofilm formation, and exopolysaccharide production. The study also revealed the presence of a full type III secretion system (T3SS) gene cluster in the V. harveyi ORM4 genome.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Immunology
Alexandra Rahmani, Francois Delavat, Christophe Lambert, Nelly Le Goic, Eric Dabas, Christine Paillard, Vianney Pichereau
Summary: This study demonstrated the importance of the T4SS of V. tapetis in the development of Brown Ring Disease in the Manila clam. While the T4SS was not responsible for the decrease of lysosomal activity during BRD, it did play a role in reducing the prevalence and mortality dynamics of the disease.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Article
Microbiology
Marion Soree, Francois Delavat, Christophe Lambert, Solen Lozach, Mathias Papin, Bruno Petton, Delphine Passerini, Lionel Degremont, Dominique Hervio Heath
Summary: The study revealed that oysters grown in controlled environments accumulated more Vibrio parahaemolyticus than those grown in intertidal environments, possibly due to immune priming in the latter. However, both types of oysters showed similar depuration rates for V. parahaemolyticus.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Microbiology
Aurelie Joublin-Delavat, Katia Touahri, Pauline Cretin, Amandine Morot, Sophie Rodrigues, Bruno Jesus, Florian Trigodet, Francois Delavat
Summary: Nitrogen fixation by marine non-cyanobacterial diazotrophs (NCD) plays a crucial role in primary production in oceans. The ecophysiology of NCD has been elusive due to limited isolates and lack of genetic tools. This study used a dual genetic and functional approach to uncover the ecophysiology of a marine NCD, Vibrio diazotrophicus. The mutant analysis revealed the importance of the NCD gene, nifH, for growth in nitrogen-free media. The study also found that V. diazotrophicus produces biofilm as an adaptive response to cope with the inhibition of nitrogen fixation by molecular oxygen. Interestingly, the genomic signature of V. diazotrophicus is largely absent from metagenomic data of Tara Ocean expeditions, despite its isolation from various marine environments.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Daniel Oyanedel, Arnaud Lagorce, Maxime Bruto, Philippe Haffner, Amandine Morot, Yannick Labreuche, Yann Dorant, Sebastien de La Forest Divonne, Francois Delavat, Nicolas Inguimbert, Caroline Montagnani, Benjamin Morga, Eve Toulza, Cristian Chaparro, Jean-Michel Escoubas, Yannick Gueguen, Jeremie Vidal-Dupiol, Julien de Lorgeril, Bruno Petton, Lionel Degremont, Delphine Tourbiez, Lea-Lou Pimpare, Marc Leroy, Oceane Romatif, Juliette Pouzadoux, Guillaume Mitta, Frederique Le Roux, Guillaume M. Charriere, Marie-Agnes Travers, Delphine Destoumieux-Garzon
Summary: In Pacific Oyster Mortality Syndrome (POMS), Vibrio harveyi and ostreid herpesvirus 1 (OsHV-1) are the predominant bacteria causing the disease. V. harveyi synergizes with OsHV-1 by promoting mutual growth and inhibiting oyster's cellular defenses. Furthermore, V. harveyi produces metabolites that benefit the growth of coexisting V. rotiferianus.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Review
Microbiology
Francois Delavat, Ryo Miyazaki, Nicolas Carraro, Nicolas Pradervand, Jan Roelof van der Meer
FEMS MICROBIOLOGY REVIEWS
(2017)