Passive Treatment of Acid Mine Drainage from a Sulphidic Coalfield
Title | Passive Treatment of Acid Mine Drainage from a Sulphidic Coalfield PDF eBook |
Author | Loree D'Orsay |
Publisher | |
Pages | 0 |
Release | 2023 |
Genre | |
ISBN |
An ongoing concern is acid mine drainage (AMD) from abandoned sulphidic mines in the Sydney coalfield, which threatens local water bodies and fishing industries if left untreated. This work focuses on evaluating the performance of two semi-passive treatment systems at the Neville Street facility that treat this AMD, which is acidic and contains heavy metals such as iron, manganese, and aluminum. These treatment systems include caustic soda addition, aeration cascades, settling ponds, and constructed wetlands. Current monthly sampling by a local government agency may or may not represent worst-case scenarios as sampling may not coincide with conditions that could impact performance, such as peak loading. This work was divided into three research objectives: (1) characterize system performance during peak loading, (2) statistically evaluate treatment performance, and (3) develop a treatment performance model of the constructed wetlands. Analysis of sampling data during peak loading events indicates that both systems are effectively removing iron from the mine water with effluent readings meeting federal and provincial guidelines. However, inlet iron concentrations have been increasing over time for both systems; thus, exceedances of guideline limits could become a concern in the future. Due to newly adopted federal and provincial guidelines for manganese and sulphate, exceedances of these guideline limits have been or are likely to become a concern in the near future. Modeling of wetland treatment performance using a modified tanks-in-series (TIS) model revealed the necessity for site-specific calibration of model constants. Areal rate constants at 20 °C for iron were developed for both systems based on design and average operating conditions. The design areal rate constants at 20 °C for the two systems were 2,325 m/year and 1,380 m/year; the average areal rate constants at 20 °C were 1,930 m/year and 560 m/year.
Passive Treatment of Coal Mine Drainage
Title | Passive Treatment of Coal Mine Drainage PDF eBook |
Author | Robert S. Hedin |
Publisher | |
Pages | 52 |
Release | 1994 |
Genre | Charbon |
ISBN |
Studies on Limestone Treatment of Acid Mine Drainage
Title | Studies on Limestone Treatment of Acid Mine Drainage PDF eBook |
Author | Bituminous Coal Research, Inc |
Publisher | |
Pages | 158 |
Release | 1970 |
Genre | Acid mine drainage |
ISBN |
Mine Drainage and Related Problems
Title | Mine Drainage and Related Problems PDF eBook |
Author | Brock C. Robinson |
Publisher | |
Pages | 0 |
Release | 2010 |
Genre | Acid mine drainage |
ISBN | 9781607412854 |
Acid mine drainage refers to the outflow of acidic water from (usually abandoned) metal mines or coal mines. However, other areas where the earth has been disturbed (eg: construction sites, subdivisions, transportation corridors, etc.) may also contribute acid rock drainage to the environment. This book discusses the effectiveness and sustainability of active and passive systems for the treatment of acid mine drainage; acid mine drainage in the Portuguese Iberian pyrite belt; the geochemistry of acid mine drainage and it's environmental pollution problem; the status of acid mine drainage and metal leaching in Ghana; the disposal and beneficial use of acid mine drainage sludge and a host of other related topics.
Passive Treatment of Acid Mine Drainage
Title | Passive Treatment of Acid Mine Drainage PDF eBook |
Author | Erik S. de Roos |
Publisher | |
Pages | 92 |
Release | 1995 |
Genre | |
ISBN |
Design manual
Title | Design manual PDF eBook |
Author | |
Publisher | |
Pages | 252 |
Release | 1983 |
Genre | |
ISBN |
Studies on Limestone Treatment of Acid Mine Drainage
Title | Studies on Limestone Treatment of Acid Mine Drainage PDF eBook |
Author | Bituminous Coal Research, Inc |
Publisher | |
Pages | 96 |
Release | 1970 |
Genre | Acid mine drainage |
ISBN |