##tihuan2##Therefore, coal and timber samples and anaerobic enrichments from two abandoned coal mines in Germany were subjected to DGGE analyses and quantitative PCR. The primers used were specific for Bacteria, Archaea, Fungi, and the key functional genes for sulfate reduction ( dsrA ) and methanogenesis ( mcrA ).
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##tihuan2##It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal …
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##tihuan2##These natural capacities can be exploited for the bioremediation of mine impacted sites. Microorganisms also play a key role in phytostabilisation, either indirectly by promoting plant growth or directly through metals and metalloids mobilization or immobilization in soils. Thus, microorganisms are important actors of mining sites …
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##tihuan2##Mine waste rock and drainage pose lasting environmental, social, and economic threats to the mining industry, regulatory agencies, and society as a whole. Mine drainage can be alkaline, neutral, moderately, or extremely acidic and contains significant levels of sulfate, dissolved iron, and, frequently, a variety of heavy metals and …
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##tihuan2##3 Vol.:(0123456789) Scientic Reports | (2021) 11:5155 | https://doi/10.1038/s41598-021-84673-0 Evenness(E ...
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##tihuan2##Bioremediation is one of the alternatives to improve former coal mining land by utilizing soil microorganisms that have a role in soil plant hormone levels, such as auxin-produced root rhizosphere ...
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##tihuan2##Introduction. Acid mine drainage (AMD) is characterized by low pH and high concentrations of metals and sulfate, representing an extreme environment to life [1] as well as a major environmental challenge worldwide [2 ••].AMD ecosystems include distinct environments of AMD solutions, sediments, and biofilms [3 ••], providing multiple niches …
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##tihuan2##Through biomining process microorganisms are applied to recover precious minerals and metals of commercial significance from mining and industrial waste …
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##tihuan2##As a special type of wetland, the new wetland in the coal mining subsidence area is highly sensitive to environmental changes. In recent years, more and more attention has been paid to the studies of soil microbial diversity in newly born wetlands in coal mining subsidence areas. However, there are few reports on the seasonal …
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##tihuan2##Soil bacteria and fungi play a significant role in maintaining the soil C/N metabolism. Therefore, the impact of revegetation types on the function of soil microorganisms in C/N metabolism must be considered when formulating ecological restoration strategies. ... Soil samples were obtained from the Pingshuo opencast coal mine, one of China's ...
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##tihuan2##Insight is provided into the effects of mining and subsequent land reclamation on soil microorganisms and the importance and application of microorganisms in the reclamation process and the applications of microorganisms as land reclamation monitors or promoters are described. Extensive coal mining causes …
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##tihuan2##Soil enzymes play a crucial role in soil functioning particularly in the cycling of carbon contained within dead organic matter, acquisition of nutrients from organic resources and decomposition ...
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##tihuan2##Carbon-fixing microbes can potentially improve soil fertility. However, the potential and function of carbon-fixing microbes remains largely uninvestigated in reclaimed soil of coal-mining subsidence areas. In …
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##tihuan2##The high oxygen content, organic fractions, and lignin-like structures of lower-rank coals may provide effective means for microbial attack, still representing a greatly unexplored frontier in...
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##tihuan2##Coal gangue is a solid waste formed during coal production, and the acid mine drainage it generates during open-pit storage severely pollutes the ecological environment of mining areas. Microorganisms play a crucial catalytic role in acidification, and their species and gene functions change during the oxidation process of coal …
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##tihuan2##Soil reconstruction is a critical step in the restoration of environments affected by mining activities. This paper provides a comprehensive review of the significant role that microbial processes play in expediting soil structure formation, particularly within the context of mining environment rest …
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##tihuan2##The environmental changes caused by coal mining activities caused disturbances to the plant, soil, and microbial health in the mining area. Arbuscular mycorrhizal fungi (AMF) play an important role in the ecological restoration of mining areas. However, it is less understood how soil fungal communities with multiple …
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##tihuan2##B. Strip mines have more iron- and sulfur-containing minerals that may be oxidized by acid-producing bacteria. C. Air exposure increases the oxidation rate of sulfur and iron by bacteria, and oxidized sulfur or iron can combine with rainwater to form a strong acid. D. Rainwater can leach acids from strip mines but not from underground mines.
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##tihuan2##In addition, the extraction of RE from mine waste or industrial landfill by-products (apatite rock, phosphogypsum waste, red mud, RE mineral mine tailings metallurgical slags, coal ash, incinerator ash and waste water streams) has been the focus of a number of studies (Binnemans et al., 2013; Hammas-Nasri et al., 2016; Antonick et …
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##tihuan2##During coal mining, some sulfide minerals in coal were oxidized and hydrolyzed with the participation of various microorganisms, leading to the generation of …
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##tihuan2##Bioremediation in mineral beneficiation. Microbial remediation technology has engrossed rapid attention in the field of environmental research (Das et al. Citation 2014; Das and Singh Citation 2011; Ghosh and Das Citation 2015).Microorganisms play a significant role in management of these toxic wastes without damaging the environment …
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##tihuan2##Vol. 24 No. 3 - July 2018. Role of microorganisms in reclamation of coal-mine spoils. By: R S Upadhyay 1 and Richa Raghuwanshi 2. Introduction. The fossil fuel coal is largely valued for its energy content. Since the 1880s it has been primarily and widely used for electric/power generation.
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##tihuan2##Microorganisms play dual role in mining & allied industries. Their presence is undesirable during mining operation and are used as remedial measure for treating …
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##tihuan2##This manuscript reviews the existing state of acid mine drainage and the potential of diverse bacteria associated with sulfur metabolism. Further, this study focuses on the effect of AMD on living organisms and the precise remediation actions which may be relevant to achieve long-term sustainable and cost-effective strategies for the …
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##tihuan2##Thiobacillus thiooxidans increases the acid formation from certain types of the pyritic concretions in coal known as sulfur balls, as well as from marcasite. Thiobacillus ferrooxidans increases the acid formed from museum grade pyrite of fine particle size as well as from sulfur balls. A general mechanism for acid formation in coal mines is ...
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##tihuan2##In a Chinese coal mine, the archaeal community was dominated by microorganisms classified as Methanosaeta in coal samples and Methanosarcina in mine water samples (Wei et al. 2013).
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##tihuan2##The present study investigated the soil bacterial community structure and functions in post-coal mining reclamation and unmined reference areas across three coal mining sites.
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##tihuan2##In most studies, the fungal strains playing a crucial role in effective coal degradation were isolated from decaying wood around coal mines, coal–soil mixtures, …
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##tihuan2##1. Introduction. Coal flotation can recover coal (<0.5 mm) and increase economic efficiency based on differences in surface properties between coal and inorganic minerals [1], [2].The flotation reagents play a significant role in the flotation process [3], [4].Some studies have pointed out that microorganisms or extracellular polymeric …
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