| |
Records |
Links |
|
Author |
Simmons, J.A.; Andrew, T.; Arnold, A.; Bee, N.; Bennett, J.; Grundman, M.; Johnson, K.; Shepherd, R. |
|
| |
Title |
Small-Scale Chemical Changes Caused by In-stream Limestone Sand Additions to Streams |
Type |
Journal Article |
| |
Year |
2006 |
Publication |
Mine Water Env. |
Abbreviated Journal |
|
|
| |
Volume |
25 |
Issue  |
4 |
Pages |
241-245 |
|
| |
Keywords |
acid mine drainage aluminum calcium limestone sand sediment stream liming West Virginia |
|
| |
Abstract |
In-stream limestone sand addition (ILSA) has been employed as the final treatment for acid mine drainage discharges at Swamp Run in central West Virginia for six years. To determine the small-scale longitudinal variation in stream water and sediment chemistry and stream biota, we sampled one to three locations upstream of the ILSA site and six locations downstream. Addition of limestone sand significantly increased calcium and aluminum concentrations in sediment and increased the pH, calcium, and total suspended solids of the stream water. Increases in alkalinity were not significant. The number of benthic macroinvertebrate taxa was significantly reduced but there was no effect on periphyton biomass. Dissolved aluminum concentration in stream water was reduced, apparently by precipitation into the stream sediment. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1025-9112 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Small-Scale Chemical Changes Caused by In-stream Limestone Sand Additions to Streams; 1; FG 4 Abb., 2 Tab.; AMD ISI | Wolkersdorfer |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 17420 |
Serial |
248 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Macklin, M.G. |
|
| |
Title |
A geomorphological approach to the management of rivers contaminated by metal mining |
Type |
Journal Article |
| |
Year |
2006 |
Publication |
Geomorphology |
Abbreviated Journal |
|
|
| |
Volume |
79 |
Issue |
3-4 |
Pages |
423-447 |
|
| |
Keywords |
mine water treatment |
|
| |
Abstract |
As the result of current and historical metal mining, river channels and floodplains in many parts of the world have become contaminated by metal-rich waste in concentrations that may pose a hazard to human livelihoods and sustainable development. Environmental and human health impacts commonly arise because of the prolonged residence time of heavy metals in river sediments and alluvial soils and their bioaccumulatory nature in plants and animals. This paper considers how an understanding of the processes of sediment-associated metal dispersion in rivers, and the space and timescales over which they operate, can be used in a practical way to help river basin managers more effectively control and remediate catchments affected by current and historical metal mining. A geomorphological approach to the management of rivers contaminated by metals is outlined and four emerging research themes are highlighted and critically reviewed. These are: (1) response and recovery of river systems following the failures of major tailings dams; (2) effects of flooding on river contamination and the sustainable use of floodplains; (3) new developments in isotopic fingerprinting, remote sensing and numerical modelling for identifying the sources of contaminant metals and for mapping the spatial distribution of contaminants in river channels and floodplains; and (4) current approaches to the remediation of river basins affected by mining, appraised in light of the European Union's Water Framework Directive (2000/60/EC). Future opportunities for geomorphologically-based assessments of mining-affected catchments are also identified. (c) 2006 Elsevier B.V. All rights reserved. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
A geomorphological approach to the management of rivers contaminated by metal mining; Wos:000241084500014; Times Cited: 1; ISI Web of Science |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 16934 |
Serial |
105 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Mohan, D.; Chander, S. |
|
| |
Title |
Removal and recovery of metal ions from acid mine drainage using lignite-A low cost sorbent |
Type |
Journal Article |
| |
Year |
2006 |
Publication |
J. Hazard. Mater. |
Abbreviated Journal |
|
|
| |
Volume |
137 |
Issue |
3 |
Pages |
1545-1553 |
|
| |
Keywords |
Geobase: Related Topics geobase: related topics (901) acid mine drainage adsorption ion iron sulfide lignite wastewater water treatment |
|
| |
Abstract |
Acid mine drainage (AMD), has long been a significant environmental problem resulting from the microbial oxidation of iron pyrite in presence of water and air, affording an acidic solution that contains toxic metal ions. The main objective of this study was to remove and recover metal ions from acid mine drainage (AMD) by using lignite, a low cost sorbent. Lignite has been characterized and used for the AMD treatment. Sorption of ferrous, ferric, manganese, zinc and calcium in multi-component aqueous systems was investigated. Studies were performed at different pH to find optimum pH. To simulate industrial conditions for acid mine wastewater treatment, all the studies were performed using single and multi-columns setup in down flow mode. The empty bed contact time (EBCT) model was used for minimizing the sorbent usage. Recovery of the metal ions as well as regeneration of sorbent was achieved successfully using 0.1 M nitric acid without dismantling the columns. < copyright > 2006 Elsevier B.V. All rights reserved. |
|
| |
Address |
D. Mohan, Department of Energy and Geo-Environmental Engineering, The Pennsylvania State University, University Park, PA 16802, United States dm_1967@hotmail.com |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0304-3894 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Oct 11; Removal and recovery of metal ions from acid mine drainage using lignite-A low cost sorbent; 2919875; Netherlands 56; Geobase |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 17634 |
Serial |
295 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
|
|
| |
Title |
World first: Full-scale BioSure plant commissioned |
Type |
Journal Article |
| |
Year |
2006 |
Publication |
Water Wheel |
Abbreviated Journal |
|
|
| |
Volume |
5 |
Issue |
3 |
Pages |
19-21 |
|
| |
Keywords |
Waste Management and Pollution Policy geographical abstracts: human geography environmental planning (70 11 5) wastewater waste facility mine waste gold mine sewage treatment |
|
| |
Abstract |
ERWAT's Ancor Wastewater Treatment Works on the Far East Rand commissioned a 10 Ml/day full-scale plant to treat toxic mine-water from the Grootvlei gold mine using primary sewage sludge. The R15-million plant is treating sulphate rich acid mine drainage using the Rhodes BioSURE Process. First, the pumped mine-water is treated at a high-density separation (HDS) plant to remove iron and condition pH levels. Then it is pumped two km via a newly-constructed 10 Ml capacity pipeline to the Ancor works. This mine-water is then mixed together with primary sewage sludge in a mixing tank from where a splitter box directs the material to eight biological sulphate reducing reactors or bioreactors. The overflow water which is rich in sulphide is pumped through the main pump station to another mixing box. Here, iron slurry is mixed with the material before it is again divided between four reactor clarifiers for sulphide removal. The overflow water, now containing reduced sulphate levels and virtually no sulphide is pumped to Ancor's biofilters for removal of remaining Chemical Oxygen Demand (COD) and ammonia following the conventional sewage treatment process for eventual release into the Blesbokspruit. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0258-2244 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Trade-; World first: Full-scale BioSure plant commissioned; 2865725; South-Africa; Geobase |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 17495 |
Serial |
494 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Sheoran, A.S.; Sheoran, V. |
|
| |
Title |
Heavy metal removal mechanism of acid mine drainage in wetlands: A critical review |
Type |
Journal Article |
| |
Year |
2006 |
Publication |
Minerals Engineering |
Abbreviated Journal |
|
|
| |
Volume |
19 |
Issue |
2 |
Pages |
105-116 |
|
| |
Keywords |
Acid mine drainage Metal removal mechanism Wetlands |
|
| |
Abstract |
Acid mine drainage (AMD) is one of the most significant environmental challenges facing the mining industry worldwide. Water infiltrating through the metal sulphide minerals, effluents of mineral processing plants and seepage from tailing dams becomes acidic and this acidic nature of the solution allows the metals to be transported in their most soluble form. The conventional treatment technologies used in the treatment of acid mine drainage are expensive both in terms of operating and capital costs. One of the methods of achieving compliance using passive treatment systems at low cost, producing treated water pollution free, and fostering a community responsibility for acid mine water treatment involves the use of wetland treatment system. These wetlands absorb and bind heavy metals and make them slowly concentrated in the sedimentary deposits to become part of the geological cycle. In this paper a critical review of the heavy metal removal mechanism involving various physical, chemical and biological processes, which govern wetland performance, have been made. This information is important for the siting and use of wetlands for remediation of heavy metals. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Heavy metal removal mechanism of acid mine drainage in wetlands: A critical review; Science Direct |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 17252 |
Serial |
41 |
|
| Permanent link to this record |
