| Records |
| Author |
Greben, H.A.; Matshusa, M.P.; Maree, J.P. |
| Title |
|
Type |
Book Whole |
| Year |
2005 |
Publication |
|
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
339-345 |
| Keywords |
water pollution biological Sulphate removal technology sulphate acidity metals treatment technique |
| Abstract |
Mining is implicated as a significant contributor to water pollution, the prime reason being, that pyrites oxidize to sulphuric acid when exposed to air and water. Mine effluents, often containing sulphate, acidity and metals, should be treated to render it suitable for re-use in the mining industry, for irrigation of crops or for discharge in water bodies. This study describes the removal of all three mentioned pollutants in mine effluents, from different origins, containing different concentrations of various metals. The objectives were achieved, applying the biological sulphate removal technology, using ethanol as the carbon and energy source. It was shown that diluting the mine effluent with the effluent from the biological treatment, the pH increased due to the alkalinity in the treated water while the metals precipitated with the produced sulphide. When this treatment regime was changed and the mine water was fed undiluted, it was found that the metals stimulated the methanogenic bacteria (MB) as trace elements. This resulted in a high COD utilization of the MB, such that too little COD was available for the SRB. Metal removal in all three studies was observed and in most instances the metals were eliminated to the required disposal concentration. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
University of Oviedo |
Place of Publication  |
Oviedo |
Editor |
Loredo, J.; Pendás, F. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
Mine Water 2005 – Mine Closure |
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
84-689-3415-1 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
The biological Sulphate removal technology; 1; AMD ISI | Wolkersdorfer; FG 'aha' 3 Abb., 9 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17347 |
Serial |
367 |
| Permanent link to this record |
| |
|
| |
| Author |
Ayala, J.; Fernández, B. |
| Title |
|
Type |
Book Whole |
| Year |
2005 |
Publication |
|
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
649-654 |
| Keywords |
flying ash copper cyanide gold mine tailing ponds detoxification |
| Abstract |
The objective of this study was to examine the use of flying ash to remove the copper cyanide species from gold mine effluents. In order to discharge them safely with minimum impact to the environment the effluents must be treated in such a way that the legal conditions were attained with the lowest possible cost. This paper presents the treatment of cyanide solution originating from tailing ponds at the end of detoxification by direct contact with flying ash. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
University of Oviedo |
Place of Publication |
Oviedo |
Editor |
Loredo, J.; Pendás, F. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
Mine Water 2005 – Mine Closure |
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
84-689-3415-1 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Adsorption of copper cyanide species from tailings pond on flying ash; 1; AMD ISI | Wolkersdorfer; FG 'aha' 4 Abb., 6 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17296 |
Serial |
472 |
| Permanent link to this record |
