Article
Biotechnology & Applied Microbiology
Tayna Diniz Frederico, Ivan Nancucheo, Werica Colaco Barros Santos, Renato Renison Moreira Oliveira, Daniella Cardoso Buzzi, Eder Soares Pires, Patricia Magalhaes Pereira Silva, Adriano Reis Lucheta, Joner Oliveira Alves, Guilherme Correa de Oliveira, Jose Augusto Pires Bitencourt
Summary: Sulfate-reducing bioreactors were used to treat acid mine drainage in this study. Two separate bioreactors with pH and temperature control were operated using different acidophilic microbial consortia to remove sulfate from synthetic acidic mine water. Both bioreactors showed similar performance in sulfate removal and contained Desulfosporosinus as the main sulfate-reducing bacteria.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
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)
Review
Engineering, Multidisciplinary
Ifeanyi Michael Smarte Anekwe, Yusuf Makarfi Isa
Summary: Pollution, especially acid mine drainage (AMD) caused by anthropogenic and industrial activities, is a major threat to the ecosystem. This study critically reviews various bioremediation methods for AMD contamination treatment and discusses their challenges and prospects. The research shows that bioremediation has proven effective and environmentally friendly, but large-scale application remains a challenge.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Baojun Yang, Wen Luo, Maoxin Hong, Jun Wang, Xueduan Liu, Min Gan, Guanzhou Qiu
Summary: A novel method of using hematite to inhibit chalcopyrite biodissolution was proposed and verified in this study. The results showed that hematite significantly inhibited chalcopyrite biodissolution, resulting in the decrease of acid mine drainage (AMD) formation. It was found that hematite promoted the formation and accumulation of passivation substances on chalcopyrite surface, thus effectively suppressing chalcopyrite biodissolution and limiting the formation of AMD.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Haixia Wang, Mingliang Zhang, Junbing Xue, Qi Lv, Jie Yang, Xuemei Han
Summary: The study demonstrated that the multi-stage constructed wetland system was highly effective in co-treating high-strength acid mine drainage and domestic wastewater. The different stages of wetland treatment significantly improved effluent pH and removed dissolved metals, sulfate, organic pollutants, and nutrient contaminants. Various types of microorganisms co-existing in this system contributed to the successful remediation process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Environmental Sciences
Tianhao Du, Anna Bogush, Ondrej Masek, Saul Purton, Luiza C. Campos
Summary: Acid mine drainage (AMD) is a global issue that causes harmful environmental impacts. This study reviewed three bio-based treatment methods using algae, biochar, and bacteria that can be used separately and potentially in combination for effective and sustainable AMD treatment. The review found that all bio-based methods, when applied as a single process and in combination, were effective treatments for AMD and were influenced by various parameters. However, there is a lack of research on the combination of algae-biochar-bacteria as a consortium for AMD treatment.
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
Engineering, Environmental
Qiming Mao, Dongning Wei, Binghua Yan, Shuang Luo, Thomas William Seviour, Zongsu Wei, Xiande Xie, Lin Luo
Summary: Biological approaches using manganese-oxidizing bacteria (MnOB) are cost-effective and environmentally friendly for removing bivalent manganese (Mn(II)). However, these bacteria have poor performance under pH below 5.5. In this study, an acid-tolerant manganese-oxidizing bacterium (Achromobacter sp. strain QBM-4) was isolated from acid mine drainage (AMD) and found to effectively remove Mn(II) at pH 4.0.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Physical
Jin-zhi Luo, Yan-yan Cai, Hao Tang, Jin Yu, Li-wei Zheng, Hua-hua Li, Meng-li Zeng
Summary: This study analyzes the softening structural deterioration of coal pillars over time when exposed to acid mine drainage. The research uses microscopic recognition techniques and hydrochemistry tests to identify changes in mineral compositions and microstructure parameters. The findings show that the acidic drainage leads to degradation in the physical and chemical characteristics of the coal, as well as changes in the soaking solution's metal ions and sulfate content.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Environmental Studies
Srabani Mishra, Sandeep Panda, Nilotpala Pradhan, S. K. Biswal, D. Satapathy
Summary: The study found that an iron-free medium was more effective for microbial desulphurization, with Assam coal exhibiting the highest desulphurization efficiency in this medium.
ENERGY & ENVIRONMENT
(2021)
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
Energy & Fuels
Aitao Zhou, Zhiyuan Xu, Kai Wang, Yanhai Wang, Jingyu An, Zhan Shi
Summary: Gas drainage is a key measure to prevent coal and gas disasters. This study combines numerical simulation and field experiment to optimize the extraction parameters of intubation spacing and extraction negative pressure in Buertai Coal Mine. A three-dimensional gas distribution model is established and COMSOL software is used for calculation. The results show that ideal gas drainage effect can be achieved at a negative pressure of 12-18 kPa within the range of 50 m-70 m.
Article
Geochemistry & Geophysics
Jinjin Chen, Yilan Liu, Patrick Diep, Radhakrishnan Mahadevan
Summary: The newly isolated acidophile A. ferridurans JAGS showed a close evolutionary relationship with A. ferridurans JCM18981 but higher genomic structure similarity with A. ferrooxidans. The study revealed that A. ferridurans species had more unique genes compared to A. ferrooxidans species, with functional gene categorizations showing different gene repertoires between the two species.
Article
Environmental Sciences
Sadanand Pandey, Elvis Fosso-Kankeu, Johannes Redelinghuys, Joonwoo Kim, Misook Kang
Summary: This study investigated the ecology of biofilms collected from an acid mine drainage system using 16S bacterial metagenomics. It found that acidophilic bacteria in the biofilms were able to dissolve coal tailing and efflorescent crusts, leaching out metals and reducing solution pH. The biofilms were also found to enhance the dispersion of metals in aquatic systems by increasing the percentage of free hydrated metal speciated forms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Asif Qureshi, Christian Maurice, Bjorn Ohlander
Summary: The study found that mixing waste rocks with fly ash or covering waste rocks with fly ash can increase the leachability of metals in waste rocks and improve the pH value of waste rocks, thereby improving the impact of waste rocks on the environment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Beenish Saba, Ann D. Christy, Tansol Park, Zhongtang Yu, Ke Li, Olli H. Tuovinen
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2018)
Article
Geochemistry & Geophysics
F. Sandy Jones, Jerry M. Bigham, Jonathan P. Gramp, Olli H. Tuovinen
APPLIED GEOCHEMISTRY
(2018)
Article
Ecology
Lubov B. Glukhova, Yulia A. Frank, Ehrzena V. Danilova, Marat R. Avakyan, David Banks, Olli H. Tuovinen, Olga V. Karnachuk
Article
Microbiology
Sarka Borilova, Martin Mandl, Josef Zeman, Jiri Kucera, Eva Pakostova, Oldrich Janiczek, Olli H. Tuovinen
FRONTIERS IN MICROBIOLOGY
(2018)
Article
Chemistry, Physical
Sarah M. Carver, Raghida Lepisto, Olli H. Tuovinen
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Microbiology
Polina A. Bukhtiyarova, Dmitry V. Antsiferov, Gael Brasseur, Marat R. Avakyan, Yulia A. Frank, Olga P. Ikkert, Nikolay V. Pimenov, Olli H. Tuovinen, Olga V. Karnachuk
Article
Metallurgy & Metallurgical Engineering
Danyal Karbalaei Saleh, Hadi Abdollahi, Mohammad Noaparast, Alireza Fallah Nosratabad, Olli H. Tuovinen
Article
Engineering, Environmental
Prakash C. Loni, Mengxiaojun Wu, Weiqi Wang, Hongmei Wang, Liyuan Ma, Chaoyang Liu, Yuyang Song, Olli H. Tuovinen
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Metallurgy & Metallurgical Engineering
Shahram Ebrahimpour, Hadi Abdollahi, Mahdi Gharabaghi, Zahra Manafi, Olli H. Tuovinen
Summary: The study tested an acid bioleaching process for recovering copper from smelter dust, achieving up to 83% copper dissolution. Chalcocyanite was found to be more easily soluble compared to other copper minerals. Further research is needed to increase copper yields from smelter dust through extended contact time at extreme temperatures and controlled parameters.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2022)
Article
Green & Sustainable Science & Technology
Guannan Ding, Karen Mancl, Jiyoung Lee, Olli H. Tuovinen
Summary: The study revealed that winter reuse of undisinfected wastewater may pose a public health risk to surface water through subsurface drainage. Therefore, disinfection of wastewater effluents used for irrigation is strongly recommended.
Article
Environmental Sciences
Niloufar Khandan, Hadi Abdollahi, Mahdi Gharabaghi, Mirsaleh Mirmohammadi, Sina Ghassa, Olli H. Tuovinen
Summary: This study investigated the bioleaching of nickel-containing sulfide minerals using a mesophilic, acidophilic consortium, which resulted in a higher nickel dissolution compared to chemical leaching. Additionally, the presence of accessory forsterite increased acid consumption, impacting the bioleaching process negatively.
GEOMICROBIOLOGY JOURNAL
(2022)
Review
Gastroenterology & Hepatology
Harish Chandra, Krishna Kant Sharma, Olli H. Tuovinen, Xingmin Sun, Pratyoosh Shukla
Summary: Pathobionts are opportunistic microbes that emerge as a result of perturbations in the healthy microbiome due to complex interactions of various genetic, exposomal, microbial, and host factors, leading to their proliferation, which may exacerbate inflammation, trigger autoimmune diseases, and even lead to life-threatening conditions. The current surge in microbiome research is unraveling the complex interplays between disease development and protection against pathobionts.
Article
Agricultural Engineering
K. M. Mancl, R. Kopp, O. H. Tuovinen
APPLIED ENGINEERING IN AGRICULTURE
(2018)
Article
Microbiology
Dmitry V. Antsiferov, Tatiana S. Fyodorova, Anastasia A. Kovalyova, Anastasia Lukina, Yulia A. Frank, Marat R. Avakyan, David Banks, Olli H. Tuovinen, Olga V. Karnachuk
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2017)
Article
Environmental Sciences
James F. Douglass, Mark Radosevich, Olli H. Tuovinen
Article
Soil Science
C. Beraud, F. Piola, J. Gervaix, G. Meiffren, C. Creuze des Chatelliers, A. Delort, C. Boisselet, S. Poussineau, E. Lacroix, A. A. M. Cantarel
Summary: This study investigated the soil factors influencing the development of biological denitrification inhibition (BDI) and found that initial soil moisture, ammonium concentration, and the initial abundance of certain microbial genes play significant roles in BDI development. Additionally, the research highlighted the relevance of biotic factors in explaining BDI and proposed the use of procyanidin concentration from plant belowground system as a new proxy for measuring BDI intensity.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Yizhu Qiao, Tingting Wang, Qiwei Huang, Hanyue Guo, He Zhang, Qicheng Xu, Qirong Shen, Ning Ling
Summary: Soil microbial community coalescence, the mixing and interaction of microbial communities, has been found to enhance the stability and complexity of rhizobacterial networks, leading to improved plant health and biomass. This study investigated the effects of different degrees of bacterial community coalescence on plant disease resistance by mixing soils from healthy and diseased habitats for watermelon planting. The results showed that mixing in more healthy soil reduced the plant disease index and increased biomass by improving the stability and complexity of the rhizobacterial network. Core taxa Nitrospirillum and Singulisphaera were enriched in the rhizosphere from healthy soils and played important roles in disease suppression and regulating the positive cohesion and modularity of the networks. Overall, these findings provide insights into the potential mechanism of microbial community coalescence for improving plant microbial community function and suggest new tools for enhancing plant fitness via soil microbiota mixing.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Mengqiu He, Shending Chen, Lei Meng, Xiaoqian Dan, Wenjie Wang, Qinying Zhu, Zucong Cai, Jinbo Zhang, Pierfrancesco Nardi, Christoph Mueller
Summary: Maize genotypes directly affect gene expression and nitrogen uptake capacity. The feedback between maize genotypes and soil nitrogen transformations, as well as their regulations on nitrogen uptake capacity, have been studied. The findings suggest that maize genotypes play a central role in regulating these feedbacks, which are important for maize breeding and enhancing maize production.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Ke Shi, Jiahui Liao, Xiaoming Zou, Han Y. H. Chen, Manuel Delgado-Baquerizo, Zhengming Yan, Tingting Ren, Honghua Ruan
Summary: Through rewilding, microbial extracellular and cellular residues can continuously accumulate in soils and significantly contribute to soil organic carbon sequestration. Extracellular residues are mainly driven by fine root biomass, while cellular residues are mainly driven by soil nitrogen and organic carbon content.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Sensen Chen, Ying Teng, Yongming Luo, Eiko Kuramae, Wenjie Ren
Summary: This study comprehensively assesses the effects of NMs on the soil microbiome through a global meta-analysis. The results reveal significant negative impacts of NMs on soil microbial diversity, biomass, activity, and function. Metal NMs, especially Ag NMs, have the most pronounced negative effects on various soil microbial community metrics.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Shareen K. D. Sanders, Gerard Martinez-De Leon, Ludovico Formenti, Madhav P. Thakur
Summary: Collembolans, the diverse group of soil invertebrates, are affected by anthropogenic climate warming, which alters their diversity and density. In addition to abiotic stressors, changes in food availability, specifically the abundance of saprotrophic and mycorrhizal fungi, influence Collembola responses to climate warming. Collembolans prefer saprotrophic fungi but rely on mycorrhizal fungi when food sources are scarce. Understanding the mechanisms behind these dietary shifts in warm-dry and warm-wet soil conditions is crucial for predicting the impact of climate change on Collembola-fungal interactions.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Wimonsiri Pingthaisong, Sergey Blagodatsky, Patma Vityakon, Georg Cadisch
Summary: A study found that mixing high-C/N ratio rice straw with low-C/N ratio groundnut stover can improve the chemical composition of the input, stimulate microbial growth, decrease the loss of residue-derived carbon in the soil, and reduce native soil carbon and nitrogen consumption.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Jiachen Wang, Jie Zhao, Rong Yang, Xin Liu, Xuyuan Zhang, Wei Zhang, Xiaoyong Chen, Wende Yan, Kelin Wang
Summary: Nitrogen is vital for ecosystem productivity, restoration, and succession processes. This study found that legume intercropping was more effective than chemical nitrogen fertilizers in promoting the complexity and stability of the soil micro-food web, as it increased microbial and nematode communities and enhanced energy flow patterns.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)