Passive In-Situ Reduction of AMD _____ 11 Mine Flooding ... discharge after mining. The stability of the workings after mining is an additional consideration. Few adits remain open for more than a few years. The stability of deeper workings depends on rock quality and the mining methods used. Any type of abandoned mine can be hard to treat. Abandoned underground mines may have cave-ins and ...

13.01.2016 · Passive Treatment of Coal-mine Drainage by a Sulfate-reducing Bioreactor in the Illinois Coal Basin1 Paul T. Behum2; Liliana Lefticariu 3; ... Coal Mining History Underground Mining: Between the 1890's and early 1955 mined - the 2.5 m (8.2 ft) thick Murphysboro Coal and the overlying discontinuous 0-1.5 m (4.9 ft) thick Mt. Rorah Coal. Surface Mining: Contour-type surface mining .

Mine Water Treatment Solutions for Discharge and Re-Use . 2 2. Fundamentals of the System Design and Requirements Recent developments in reliable and economical membrane technology have allowed Pall Corporation to design robust, cost-effective systems that produce a good quality of water in a broad range of mine wastewater treatment applications. Applications include the removal of oxidized ...

Incidence of Barium Pollution in Mine Water Discharge in an Underground Coal Mine R.N. Singh and I. Porter Department of Civil, Mining and Environmental Engineering, University ofWollongong, Northfields Avenue, Wollongong, NSW 2522, Australia ABSTRACT This paper is concerned with a case history of waste water quality management in an underground coal mine in the Illawarra region. The main ...

Reducing Iron Content in Coal Mine Discharge. Home > Resources > Reference Materials > Feature Installations > Cleveland Cliffs, West ia. Nestled in the mountains of southern West ia, sophisticated » Learn More. Acid Mine Drainage Treatment United States Army. Acid Mine Drainage Treatment by: current coalproducing areas. Acid mine drainage Iron sulfides that are common in coal regions are ...

The government complaint filed concurrently with the consent decree alleged that over a five-year period, Southern Coal violated NPDES discharge permits for pollutants including iron, total suspended solids, aluminum, pH and manganese in their permits. The complaint also alleged that Southern Coal failed to submit complete and timely discharge monitoring reports, made .

Two U.S. Geological Survey computer programs are modified and linked to predict the cumulative impact of iron and manganese oxidation in coal-mine discharge water on the dissolved chemical quality of a receiving stream. The coupled programs calculate the changes in dissolved iron, dissolved manganese, and dissolved oxygen concentrations; alkalinity; and, pH of surface water downstream from the ...

The government complaint filed concurrently with the consent decree alleged that over a five-year period, Southern Coal violated NPDES discharge permits for pollutants including iron, total suspended solids, aluminum, pH and manganese in their permits. The complaint also alleged that Southern Coal failed to submit complete and timely discharge monitoring reports, made unauthorized discharges ...

In 2008–09, the mining sector had a regulated discharge to the environment of 37 GL; over 90% came from the coal industry – mainly from large open cut mines that extend below the water table.1 Coal is by far the largest user in the mining sector because of .

The coal mine wastewater discharge was enriched with sodium and bicarbonate ions compared to sodium and chloride ions in the subsidence affected creek. Both the waste discharge and the subsidence caused increases in the concentrations of zinc by about four times and nickel by 20 to 30 times the background levels. The subsidence reduced dissolved oxygen to ecologically stressful .

Determination of discharge degradation caused by remining of abandoned coal mines requires knowledge of mine water quality and discharge flow rate characteristics both before and after remining. Normality tests performed on the water quality and flow data from 57 mine discharges indicate generally nonnormal distributions and extreme right‐skewness. Exploratory data analysis (notched box ...

We monitored the results from Phase 1, which showed the infrastructures were efficiently reducing the iron concentration between the raw mine water and the treated discharge by approximately 94%.

• SRB cause corrosion of iron • Significant sulfate levels can exist below the intake level of pumps & where water has become stagnant - Remediate by cleaning pump and removing organic material (use chlorine and agitation) Positive: • SRB can remove sulfate and toxic metals from waste water streams - Commonly used to remediate leachate water from acid waste and abandoned mines .

----- The acid mine discharge was monitored for dissolved oxygen and was found to contain 2.9 mg/1 of oxygen at the point of discharge from the mine and 4.9 mg/1 of oxygen at the intake of the demonstration unit. Sodium sulfite was added in the feed line to remove the oxygen. It was thought that removal of the oxygen would eliminate the flux decline due to iron fouling, by eliminating iron ...

Determination of discharge degradation caused by remining of abandoned coal mines requires knowledge of mine water quality and discharge flow rate characteristics both before and after remining. Normality tests performed on the water quality and flow data from 57 mine discharges indicate generally nonnormal distributions and extreme right‐skewness. Exploratory data analysis (notched box ...

Reducing Iron Content in Coal Mine Discharge. Home > Resources > Reference Materials > Feature Installations > Cleveland Cliffs, West ia. Nestled in the mountains of southern West ia, sophisticated » Learn More. Acid Mine Drainage Treatment United States Army. Acid Mine Drainage Treatment by: current coalproducing areas. Acid mine drainage Iron sulfides that are common in coal regions are ...

mines, compared to reference sites. Concurrent monitoring at the mines confirmed the above findings of elevated selenium in waters draining coal mines (4). Background or upstream Se concentrations in water bodies draining the mines averaged 0.7 µg/L (N=56) compared with 9.1 µg/L (N=126) at downstream sampling stations. Se concentrations in ...

reclamation of abandoned mine lands, utilization of significant quantities of coal, and reduction of contaminant loads (acidity and iron) from degraded mine drainage discharges. Normality tests per­ formed on the water quality and flow data indicate generally nonnormal distributions and extreme right­ skewness, tending toward lower values. The water quality of underground coal mines was ...

EFFECTS OF COAL-MINE DISCHARGES ON THE QUALITY OF THE STONYCREEK RIVER AND ITS TRIBUTARIES, SOMERSET AND CAMBRIA COUNTIES, PENNSYLVANIA by Donald R. Williams, James I. Sams III, and Mary E. Mulkerrin

The changes of concentrations of barium and iron ions, sulphates, chlorides were analysed. Barium was removed from waters by precipitation of sulphates. Isotopic data of sulphates (δ34S and δ18O) showed that these sulphates come from the oxidation of sulphides (pyrite, markasite or hydrogen sulphide). The process, which reduce the content of barium in the mine waters from the closed Żory ...