Effectiveness of the Addition of Alkaline Materials at Surface Coal Mines in Preventing and Abating Acid Mine Drainage: Part 2. Mine Site Case Studies

1990 ◽  
Vol 1990 (1) ◽  
pp. 227-242 ◽  
Author(s):  
K. Brady ◽  
M. Smith ◽  
R. Beam ◽  
C. Cravotta III
Keyword(s):  
Acid Mine Drainage ◽  
Case Studies ◽  
Mine Drainage ◽  
Coal Mines ◽  
Mine Site ◽  
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

HYPERSPECTRAL SENSING OF ACID MINE DRAINAGE – TWO COLORADO CASE STUDIES

2006 ◽  
Vol 2006 (2) ◽  
pp. 738-763
Author(s):  
Phoebe L. Hauff ◽  
Douglas C. Peters ◽  
David W. Coulter ◽  
Matthew A. Sares ◽  
David A. Bird ◽  
...  
Keyword(s):  
Acid Mine Drainage ◽  
Case Studies ◽  
Mine Drainage ◽  
Acid Mine ◽  
Hyperspectral Sensing

Evaluation of genetic toxicity caused by acid mine drainage of coal mines on fish fauna of Simsang River, Garohills, Meghalaya, India

2016 ◽  
Vol 131 ◽  
pp. 65-71 ◽  
Author(s):  
B. Talukdar ◽  
H.K. Kalita ◽  
R.A. Baishya ◽  
S. Basumatary ◽  
D. Sarma
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Coal Mines ◽  
Fish Fauna ◽  
Genetic Toxicity ◽  
Acid Mine

Preliminary geotechnical assessment of the potential use of mixtures of soil and acid mine drainage neutralization sludge as materials for the moisture retention layer of covers with capillary barrier effects

2016 ◽  
Vol 53 (5) ◽  
pp. 828-838 ◽  
Author(s):  
Mamert Mbonimpa ◽  
Médard Bouda ◽  
Isabelle Demers ◽  
Mostafa Benzaazoua ◽  
Denis Bois ◽  
...  
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Capillary Barrier ◽  
Moisture Retention ◽  
Mine Site ◽  
Barrier Effects ◽  
Acid Mine ◽  
Geotechnical Assessment ◽  
Site Rehabilitation ◽  
Water Contents

Lime treatment of acid mine drainage (AMD) generates sludge that is commonly stored in ponds for dewatering. The use of soil-aged sludge-based mixtures for mine site rehabilitation can allow the emptying of existing basins, thus extending their storage capacity, reducing the volume of the borrow soil pit required for mine site rehabilitation, and consequently reducing the mine footprint. The authors investigated the geotechnical properties of silty soil–sludge mixtures (SSMs) as possible components of covers with capillary barrier effects (CCBEs) to prevent AMD generation from mine waste. SSMs with β values of 10%, 15%, 20%, and 25% sludge (β = wet sludge mass / wet soil mass) were studied. Two water contents were considered for each of the mixture components: 175% and 200% for the sludge and 7.5% and 12.5% for the soil. Results indicate that saturated hydraulic conductivity (ksat) values were in the range of 10−5 cm/s for the soil and SSMs at void ratios ranging from 0.28 to 0.53, with values decreasing slightly when β was increased from 0% to 25%. The air-entry value (AEV) increased from 20 kPa for the soil alone to 35 kPa for the SSM with β = 25%. These values of ksat and AEV are comparable to those of materials used in the moisture retention layers of existing efficient CCBEs. However, the volumetric shrinkage increased from about 2% for the soil alone to values ranging between 24% and 32% for the SSM with β = 25%, depending on the initial water contents of the components. Tools are provided to estimate to which extent the use of sludge in SSMs can reduce the volume of borrow natural soil required for a moisture retention layer of a CCBE.

Acid Mine Drainage (AMD): causes, treatment and case studies

2006 ◽  
Vol 14 (12-13) ◽  
pp. 1139-1145 ◽  
Author(s):  
Ata Akcil ◽  
Soner Koldas
Keyword(s):  
Acid Mine Drainage ◽  
Case Studies ◽  
Mine Drainage ◽  
Acid Mine

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.

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