39 research outputs found
China’s most typical nonferrous organic-metal facilities own specific microbial communities
This is the final version of the article. Available from Springer Nature via the DOI in this record.The diversity and function of microorganisms have yet to be explored at non-ferrous metal mining facilities (NMMFs), which are the world’s largest and potentially most toxic sources of co-existing metal(loid)s and flotation reagents (FRs). The diversity and inferred functions of different bacterial communities inhabiting two types of sites (active and abandoned) in Guangxi province (China) were investigated for the first time. Here we show that the structure and diversity of bacteria correlated with the types of mine sites, metal(loid)s, and FRs concentrations; and best correlated with the combination of pH, Cu, Pb, and Mn. Combined microbial coenobium may play a pivotal role in NMMFs microbial life. Arenimonas, specific in active mine sites and an acidophilic bacterium, carries functions able to cope with the extreme conditions, whereas Latescibacteria specific in abandoned sites can degrade organics. Such a bacterial consortium provides new insights to develop cost-effective remediation strategies of co-contaminated sites that currently remain intractable for bioremediation.This work was funded by the International Key Project from National Natural Science Foundation of China (41720104007), and Projects of Natural Science Foundation of China (41573080, U1402234, 41711530030, 41711530150, 41711530224), Public welfare project of Chinese Ministry of Environmental Protection (201509049), International key project of Ministry of Science and Technology of China (S2016G2135), and Fundamental Research Funds for the Central Universities (FRF-OT-16-025). We also acknowledge the support of the Centre National de la Recherche Scientifique (CNRS PRC1416, France), a Royal Society Newton Mobility Grant (IE161198), and National Natural Science Foundation International Joint collaboration China-Sweden (41430106)
Using sewage sludge as a sealing layer to remediate sulphidic mine tailings: a pilot-scale experiment, northern Sweden
Effect of Longâ Term Oral Bisphosphonates on Implant Wound Healing: Literature Review and a Case Report
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141603/1/jper0584.pd
Microbial metagenomes from three aquifers in the Fennoscandian shield terrestrial deep biosphere reveal metabolic partitioning among populations
Microorganisms in the terrestrial deep biosphere host up to 20% of the earth's biomass and are suggested to be sustained by the gases hydrogen and carbon dioxide. A metagenome analysis of three deep subsurface water types of contrasting age (from <20 to several thousand years) and depth (171 to 448 m) revealed phylogenetically distinct microbial community subsets that either passed or were retained by a 0.22 mu m filter. Such cells of <0.22 mu m would have been overlooked in previous studies relying on membrane capture. Metagenomes from the three water types were used for reconstruction of 69 distinct microbial genomes, each with >86% coverage. The populations were dominated by Proteobacteria, Candidate divisions, unclassified archaea and unclassified bacteria. The estimated genome sizes of the <0.22 mu m populations were generally smaller than their phylogenetically closest relatives, suggesting that small dimensions along with a reduced genome size may be adaptations to oligotrophy. Shallow 'modern marine' water showed community members with a predominantly heterotrophic lifestyle. In contrast, the deeper, 'old saline' water adhered more closely to the current paradigm of a hydrogen-driven deep biosphere. The data were finally used to create a combined metabolic model of the deep terrestrial biosphere microbial community.Supplementary information available for this article at http://www.nature.com/ismej/journal/v10/n5/suppinfo/ismej2015185s1.html</p
Advances in the use of recycled non-ferrous slag as a resource for non-ferrous metal mine site remediation
202208 bcchOthersChinese Ministry of Science and TechnologNational Natural Science Foundation of China1000-Talents Plan projectPublished24 month
Survey of current confirmity rules, BioNormII - Pre-normative research on solid biofuels for improved European standards. Project no. 038644, DIV8
Survey of current confirmity rules, BioNormII - Pre-normative research on solid biofuels for improved European standards. Project no. 038644, DIV8
Classification of Used Wood in European Solid Biofuel Standard: Fuel Specification and Classes (EN 14961-1)
The work of the BioNormII on Fuel specification and classes (Task IV) has very valuable in upgrading of EN 14961 to European standard. Testing of the draft versions of EN 14961 in companies and collecting feedback from associations has provided useful information from practise in setting threshold values for property tables in Part 1 of EN 14961 and proposal for classification of product standards. The Task IV has also made a comprehensive study of current classification of used wood (waste wood) including implementation of European legislations and standards. The study included also analysis of different used wood sortiments and their composition especially con taminants. It is necessary to define the impact of possible contaminants on the energy utilisation of used wood. This is helpful for categorisation, as well as for identification and characterisation of the contaminants. From an environ mental point of view, the risks of used wood combustion are air pollution from flue gases or leaching of hazardous substances from ash after disposal. Operation failure, normally appearing as boiler deposit formation or corrosion, is a technical issue that also needs to be considered. Mechanically, problems in fuel conveyors may occur due to glass, fittings, and various fastening systems that are attached to �used wood� products. Another important aspect to be ac counted for is issues related to occupational health. All these aspects were surveyed during the study. The project also made a proposal for overall categorisation of chemically treated industrial wood residues and used wood. In this clas sification used wood is divided in 4 categories A, B, C and D. Categories A and B are classified under EN 14961-1� Solid biofuel standard and class C under EN 15359�Solid recovered fuel. Fuels falling into category C should be in cinerated according Waste Incineration Directive (2000/76/EC). Class D wood is treated by wood preservatives and is hazardous waste