| Records |
| Author |
Demin, O.A.; Dudeney, A.W.L.; Tarasova, I.I. |
| Title |
Remediation of Ammonia-rich Minewater in Constructed Wetlands |
Type |
Journal Article |
Year  |
2002 |
Publication |
Environ. Technol. |
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| Volume |
23 |
Issue |
5 |
Pages |
497-514 |
| Keywords |
constructed wetlands reed beds ammonia removal nitrification woolley colliery horizontal subsurface flow nitrate removal waste-water denitrification nitrification |
| Abstract |
A three-year study of ammonia removal from minewater was carried out employing constructed wetland systems (surface flow wetland and subsurface flow wetland cells) at the former Woolley Mine in West Yorkshire, UK The 1.4 Ha surface flow wetland (constructed in 1995) reduced the ammonia concentration from 3.5 – 4.5 mg l(-1) to < 2 3 mg V during the first half of the study and to essentially zero in the last year (2000 – 2001). About 25 % of contained ammonia was converted to nitrate, about 10 % was consumed by the plants and up to 30 % was converted to nitrogen gas. This maturation effect was attributed to increased depth of sludge from sedimentation of ochre, providing increased surface area for immobilisation of ammonia oxidising bacteria. The surface flow wetland finally removed 23 g m(-2) day(-1) ammonia in comparison with 3.8 g m(-2) day' for the subsurface flow (pea gravel) wetland cells, constructed for the present work and dosed with ammonium salts. Removal of ammonia by both systems was consistent with well-established mechanisms of nitrification and denitrification. It was also consistent with ammonia removal in wastewater wetland systems, although the greater aeration in the minewater systems obviated the need for special aeration cycles. The general role of wetland plants in such aerated conditions was attributed to maintaining hydraulic conditions (such as hydraulic efficiency and hydraulic resistance of substratum in subsurface flow systems) in the wetlands and providing a suspended solids filter for minewater. |
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0959-3330 |
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| Notes |
Remediation of Ammonia-rich Minewater in Constructed Wetlands; Isi:000176238900002; AMD ISI | Wolkersdorfer |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17328 |
Serial |
405 |
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| Author |
Chalaturnyk, R.J.; Scott, J.D.; Ozum, B. |
| Title |
Management of Oil Sands Tailings |
Type |
Journal Article |
| Year |
2002 |
Publication |
Pet. Sci. Technol. |
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| Volume |
20 |
Issue |
9-10 |
Pages |
1025-1046 |
| Keywords |
mine water |
| Abstract |
In Alberta, oil sands bitumen is utilized for synthetic crude oil (SCO) production by surface mining, bitumen extraction followed by primary (coking) and secondary (catalytic hydro-treating) upgrading processes. SCO is further refined in specially designed or slightly modified conventional refineries into transportation fuels. Oil sands tailings, composed of water, sands, silt, clay and residual bitumen, is produced as a byproduct of the bitumen extraction process. The tailings have poor consolidation and Water release characteristics. For twenty years, significant research has been performed to improve the consolidation and water release characteristics of the tailings. Several processes were developed for the management of oil sands tailings, resulting in different recovered water characteristics, consolidation rates and consolidated solid characteristics. These processes may affect the performance of the overall plant operations. Apex Engineering Inc. (AEI) has been developing a process for, thesame purpose. In this process oil sands tailings are treated with Ca(OH)(2) lime and CO2 and thickened using a suitable thickener. The combination of chemical treatment and the use of a thickener results in the release of process water in short retention times without accumulation of any ions in the recovered water. This makes it possible to recycle the recovered water, probably after a chemical treatment, as warm as possible, which improves the thermal efficiency of the extraction process. The AEI Process can be applied in many different fashions for the management of different fractions of the tailings effluent, depending on the overall plant operating priorities. |
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1091-6466 |
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Management of Oil Sands Tailings; Isi:000179750000010; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17320 |
Serial |
420 |
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Brown, M.; Barley, B.; Wood, H. |
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Book Whole |
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2002 |
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Pages |
500 pp |
| Keywords |
minewater treatment case studies wetlands passive treatment active treatment |
| Abstract |
Much work has been carried out in recent decades concerning minewater treatment, both in the UK and worldwide. Many different bodies and organizations are involved in developing minewater treatment processes and schemes. Minewater Treatment addresses the need for a single source of state-of-the-art information that draws all the latest research material together. Key features of the book include: a full literature review of minewater treatment throughout the world; an overview of relevant legislation and policy in a global context; a review of currently available methods for treating minewater worldwide; a site specific inventory of minewater treatment schemes within the UK, including compilation of available monitoring data and assessment of performance; a review of emerging and innovative minewater treatment technologies and consideration of related academic research within the UK; a comprehensive list of active and innovative minewater treatment technologies that are not currently compiled in a book or other review publication; a detailed summary and recommendations section assessing the applicability, efficiency and cost-effectiveness of minewater treatment schemes. Relevant scientific subject matter is presented in a concise, easily accessible manner to assist with the objective assessment of the progress made to date. Heavily illustrated with many colour photographs, the book allows best use to be made of the collective experience of minewater treatment practitioners throughout the UK, whilst at the same time placing the UK experience within a global context. An invaluable reference work for mining companies, consultants, planning officers, environmental research scientists, environmental agencies, water utilities and regulatory bodies, Minewater Treatment is a definitive source of information on minewater treatment technologies and will help facilitate the selection of the most appropriate technique required to tackle particular minewater discharge problems. Contents 1. The mine water problem 2. Treatment options 3. Existing sites in the UK: Case studies 4. Existing sites in the UK: Site summaries 5. Summary & conclusions |
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IWA Publishing |
Place of Publication |
London |
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Minewater Treatment – Technology, Application and Policy |
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ISBN |
1-843-39004-3 |
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| Notes |
Minewater Treatment – Technology, Application and Policy; 1; AMD ISI | Wolkersdorfer; FG zahlr. Abb., zahlr. Tab. |
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no |
| Call Number |
CBU @ c.wolke @ 17317 |
Serial |
432 |
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Brown, M.; Barley, B.; Wood, H. |
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Book Whole |
| Year |
2002 |
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acid mine drainage acidic composition bioremediation case studies chemical composition chemical reactions coal mines concentration constructed wetlands discharge England Europe Great Britain ground water international cooperation ion exchange kinetics legislation mines mining open-pit mining physicochemical properties policy pollution regulations remediation Scotland sulfate ion surface mining surface water tailings techniques technology underground mining United Kingdom Wales waste disposal waste management waste rock water pollution water resources water treatment weathering Western Europe wetlands 22, Environmental geology |
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IWA Publishing |
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London |
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Minewater treatment; technology, application and policy |
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1843390043 |
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Minewater treatment; technology, application and policy; 2006-084782; GeoRef; English; Includes appendices References: 416; illus. |
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no |
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CBU @ c.wolke @ 16503 |
Serial |
433 |
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Bloom, N.S.; Preus, E.; Kilner, P.I.; von der Geest, E.; Hensman, C.E. |
| Title |
Very efficient removal of toxic metals from acid mine drainage water (Berkeley Pit, Montana) with a recycled alkaline industrial waste product Hardrock mining 2002; issues shaping the industry |
Type |
Book Chapter |
| Year |
2002 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
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acid mine drainage; Berkeley Pit; Butte Montana; decontamination; geochemistry; hydrochemistry; industrial waste; metals; mineral composition; Montana; pollution; Silver Bow County Montana; soils; sulfates; surface water; toxic materials; trace metals; United States; waste disposal; water treatment 22 Environmental geology; 02A General geochemistry |
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Very efficient removal of toxic metals from acid mine drainage water (Berkeley Pit, Montana) with a recycled alkaline industrial waste product Hardrock mining 2002; issues shaping the industry; GeoRef; English; 2007-046176; Hardrock mining 2002; issues shaping the industry, Westminster, CO, United States, May 7-9, 2002 U. S. Environmental Protection Agency, Office of Research and Development, Washington, DC, United States |
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CBU @ c.wolke @ 5625 |
Serial |
445 |
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