Effectiveness of the Addition of Alkaline Materials at Surface Coal Mines in Preventing and Abating Acid Mine Drainage: Part 1. Geochemical Considerations

1990 ◽  
Vol 1990 (1) ◽  
pp. 221-226 ◽  
Author(s):  
C. Cravotta III ◽  
K. Brady ◽  
M. Smith ◽  
R. Beam
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Coal Mines ◽  
Acid Mine

Effects of Acid Mine Drainage of Coal Mines on Some Haematological Parameters of Channa punctatus (Bloch)

2017 ◽  
Vol 40 (2) ◽  
pp. 91-94
Author(s):  
B. Talukdar ◽  
H. K. Kalita ◽  
R. A. Baishya ◽  
S. Basumatary ◽  
A. Dutta ◽  
...  
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Coal Mines ◽  
Channa Punctatus ◽  
Haematological Parameters ◽  
Acid Mine

Geochemistry and stable isotope investigation of acid mine drainage associated with abandoned coal mines in central Montana, USA

2010 ◽  
Vol 269 (1-2) ◽  
pp. 100-112 ◽  
Author(s):  
Christopher H. Gammons ◽  
Terence E. Duaime ◽  
Stephen R. Parker ◽  
Simon R. Poulson ◽  
Patrick Kennelly
Keyword(s):  
Stable Isotope ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Coal Mines ◽  
Acid Mine ◽  
Abandoned Coal Mines ◽  
Central Montana

scholarly journals Effects of Long-Term Discharge of Acid Mine Drainage from Abandoned Coal Mines on Soil Microorganisms: Microbial Community Structure, Interaction Patterns and Metabolic Functions

2021 ◽  
Author(s):  
Di Chen ◽  
Qiyan Feng ◽  
Haoqian Liang
Keyword(s):  
Microbial Community ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Coal Mines ◽  
Interaction Patterns ◽  
Nitrogen Fixing ◽  
Acid Mine ◽  
Metabolic Functions ◽  
Abandoned Coal Mines

Abstract More than twenty abandoned coal mines in the Yudong River basin of Guizhou Province have discharged acid mine drainage (AMD) for a long time. The revelation of microbial community composition, interaction patterns and metabolic functions can contributes to the ecological remediation of AMD pollution. In this study, reference and contaminated soils were collected along the AMD flow path for high-throughput sequencing. Results showed that the long-term AMD pollution promoted the evolution of γ-Proteobacteria, and the acidophilic iron-oxidizing bacteria Ferrovum (relative abundance of 15.50%) and iron-reducing bacteria Metallibacterium (9.87%) belonging to this class became the dominant genera. Co-occurrence analysis revealed that the proportion of positive correlations among bacteria increased from 51.02% (reference soil) to 75.16% (contaminated soil), suggesting that acidic pollution promotes the formation of mutualistic interaction networks of microorganisms. Metabolic function prediction (Tax4Fun) revealed that AMD contamination enhanced the microbial functions such as translation, repair, and biosynthesis of peptidoglycan and lipopolysaccharide etc., which may be an adaptive mechanism for microbial survival in extremely acidic environment. In addition, the acidic pollution promoted the high expression of nitrogen fixing genes in soil, and the discovery of autotrophic nitrogen fixing bacteria such as Ferrovum provided the possibility of bioremediation of AMD pollution.

scholarly journals Acid mine drainage (AMD) contamination in coal mines and the need for extensive prediction and remediation: a review

2021 ◽  
Vol 9 (1) ◽  
pp. 3129-3136
Author(s):  
Theophilus Ile Ojonimi ◽  
lemona C Okeme ◽  
Tina Phiri Chanda ◽  
Eneojo Godwin Ameh
Keyword(s):  
Heavy Metals ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Environmental Regulations ◽  
Atmospheric Oxygen ◽  
Coal Mines ◽  
Coal Waste ◽  
Acid Mine ◽  
Waste Dumps ◽  
The Impact

Globally, the major source of environmental pollution as a result of mineral exploitation and processing is acid mine drainage (AMD). AMD refers to outflowing streams of acidic constituents from pyrite-bearing ore mines. The exposure of pyrite (FeS2) in coal waste dumps to atmospheric oxygen and water in the presence of microbial communities promotes the formation of sulphuric acid which leaches out the inherent heavy metals into the mine discharge, a phenomenon called pyrite oxidation. AMDs are usually characterized by a convoy of toxic heavy metals, most of which are transition elements (copper, nickel, zinc, etc.) and arsenic at concentrations higher than the limits permitted by environmental regulations. The impact of this acidic discharge from coal mines on downstream/underground waters and farm lands within the corresponding mining zones have been severally reported by previous researchers, but not so much have been discussed on extensive prediction and remediation. It is in view of this that the current paper reviews the need for extensive prediction and remediation approach for coal mines under the following subheadings; General introduction, AMD sources identification, representative sampling, adoption of a prediction model, determination of AMD potential and quality via static and kinetic tests and the development of an economically sustainable remediation strategy. It is thought that this article would be useful to academia as well as policy makers that are responsible for the development and implementation of environmental regulations in coal mines.

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