Effects of Metal-mine drainage on Water Quality in selected areas of Colorado, 1972-73

Circular ◽  
1974 ◽  
Author(s):  
Robert E. Moran ◽  
Dennis A. Wentz
Keyword(s):  
Water Quality ◽  
Mine Drainage ◽  
Metal Mine

scholarly journals Spatial Variation of Water Chemistry in Aries River Catchment Western Romania

2021 ◽  
Vol 11 (14) ◽  
pp. 6592
Author(s):  
Ana Moldovan ◽  
Maria-Alexandra Hoaghia ◽  
Anamaria Iulia Török ◽  
Marius Roman ◽  
Ionut Cornel Mirea ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Water Chemistry ◽  
Water Samples ◽  
Mine Drainage ◽  
Pollution Indices ◽  
Mining Activities ◽  
River Catchment ◽  
High Concentrations ◽  
The Impact

This study aims to investigate the quality and vulnerability of surface water (Aries River catchment) in order to identify the impact of past mining activities. For this purpose, the pollution and water quality indices, Piper and Durov plots, as well vulnerability modeling maps were used. The obtained results indicate that the water samples were contaminated with As, Fe, Mn, Pb and have relatively high concentrations of SO42−, HCO3−, TDS, Ca, K, Mg and high values for the electrical conductivity. Possible sources of the high content of chemicals could be the natural processes or the inputs of the mine drainage. Generally, according to the pollution indices, which were correlated to high concentrations of heavy metals, especially with Pb, Fe and Mn, the water samples were characterized by heavy metals pollution. The water quality index classified the studied water samples into five different classes of quality, namely: unsuitable for drinking, poor, medium, good and excellent quality. Similarly, medium, high and very high vulnerability classes were observed. The Durov and Piper plots classified the waters into Mg-HCO3− and Ca-Cl− types. The past and present mining activities clearly change the water chemistry and alter the quality of the Aries River, with the water requiring specific treatments before use.

scholarly journals Mining and Metal Pollution: Assessment of Water Quality in the Tarkwa Mining Area

2017 ◽  
Vol 17 (2) ◽  
pp. 17-31
Author(s):  
A. Ewusi ◽  
B. Y. Apeani ◽  
I. Ahenkorah ◽  
R. S. Nartey
Keyword(s):  
Water Quality ◽  
Acid Mine Drainage ◽  
Metal Concentration ◽  
Water Samples ◽  
Mine Drainage ◽  
World Health ◽  
Hydrochemical Modelling ◽  
Acid Mine ◽  
Two Samples ◽  
Dug Well

The quality of water in mining communities is uncertain since metals associated with acid mine drainage are known to saturate these waters. Previous studies in Tarkwa, an area noted for gold and manganese extraction, have reported large concentrations of aluminium, arsenic, cadmium, copper, lead, manganese and mercury in water samples. This research aimed at investigating the chemistry of groundwater with special focus on the contamination status of trace elements. It also compared levels of metal concentration with those that were determined in previous research works, to identify changes that might have occurred. Thirty-eight water samples from boreholes, hand-dug wells and streams, within the Tarkwa area were obtained and analysed. Results show that 90 % of water in the area is acidic and Eh was determined to be positive, depicting oxidizing conditions. Mean groundwater temperature was 28.9 ºC. Thirty-two samples had either temperature or pH values falling outside the range recommended by the World Health Organisation (WHO). Thirty samples had at least one metal concentration exceeding the WHO guideline values. Among the list of elements that exceeded the guideline, arsenic, manganese, nitrate, nitrite and iron were the most predominant. The dominant ions in the samples were sodium and bicarbonate. High concentrations of Fe and SO42- in some parts of the study area point to the influence of acid mine drainage (AMD). Comparisons of results of metal concentrations with findings from previous research in the area showed a reduction in concentration. Hydrochemical modelling with PhreeqC attributed this reduction to sorption processes. Comparison of levels of metal concentration in the different water supply facilities (borehole, hand-dug well and stream) showed no significant variations. Keywords: Water Quality, Drinking Water, Hydrochemical Modelling, Heavy Metals

The Feasibility Evaluation of Mine Drainage Utilization in Jiaozuo

2012 ◽  
Vol 599 ◽  
pp. 647-650
Author(s):  
Da Ping Xia ◽  
Xiao Lei Liu
Keyword(s):  
Water Quality ◽  
Resource Utilization ◽  
Suspended Matter ◽  
Mine Water ◽  
Mine Drainage ◽  
Water Quantity ◽  
Benefit Evaluation ◽  
Feasibility Evaluation ◽  
Mine Discharge ◽  
Utilization Scheme

Taking the mine water of Jiaozuo as a research, the feasibility utilizing of mine water is analyzed. By detecting mine water quality and predicting water quantity of five productive mine in Jiaozuo, it shows that the mine water of Jiaozuo is suspended matter and mine discharge is stable. According to the principle of “combine drainage with supply, selective water quality to use” and the different requirement for other purposes, the resource utilization scheme for mine water is put forward. Finally, benefit evaluation is made.

Toxicological Analysis of Acid Mine Drainage by Water Quality and Land Use Bioassays

2017 ◽  
Vol 37 (1) ◽  
pp. 88-97 ◽  
Author(s):  
Soledad Chamorro ◽  
Carlos Barata ◽  
Benjamín Piña ◽  
Marta Casado ◽  
Alex Schwarz ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Toxicological Analysis ◽  
Acid Mine
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