| Records |
| Author |
Watzlaf, G.R.; Schroeder, K.T.; Kairies, C.L. |
| Title |
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Type |
Book Whole |
| Year |
2000 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages  |
262-274 |
| Keywords |
passive treatment anoxic limestone drains wetlands sulfate reduction successive alkalinity-producing systems acid mine drainage ALD SAPS RAPS |
| Abstract |
Ten passive treatment systems, located in Pennsylvania and Maryland, have been intensively monitored for up to ten years. Influent and effluent water quality data from ten anoxic limestone drains (ALDs) and six reducing and alkalinity-producing systems (RAPS) have been analyzed to determine long-term performance for each of these specific unit operations. ALDs and RAPS are used principally to generate alkalinity, ALDs are buried beds of limestone that add alkalinity through dissolution of calcite. RAPS add alkalinity through both limestone dissolution and bacterial sulfate reduction. ALDs that received mine water containing less than 1 mg/L of both ferric iron and aluminum have continued to produce consistent concentrations of alkalinity since their construction. However, an ALD that received 20 mg/L of aluminum experienced a rapid reduction in permeability and failed within five months. Maximum levels of alkalinity (between 150 and 300 m&) appear to be reached after I5 hours of retention. All but one RAPS in this study have been constructed and put into operation only within the past 2.5 to 5 years. One system has been in operation and monitored for more than nine years. AIkalinity due to sulfate reduction was highest during the first two summers of operation. Alkalinity due to a limestone dissolution has been consistent throughout the life of the system. For the six RAPS in this study, sulfate reduction contributed an average of 28% of the total alkalinity. Rate of total alkalinity generation range from 15.6 gd''rn-'to 62.4 gd-'mL2 and were dependent on influent water quality and contact time. |
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Place of Publication |
Tampa |
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Proceedings, 17th Annual National Meeting – American Society for Surface Mining and Reclamation |
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| Notes |
Long-Term Perpormance of Alkalinity-Producing Passive Systems for the Treatment of Mine Drainage; 2; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden 4 Abb., 5 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17440 |
Serial |
216 |
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| Author |
Jarvis, A.P. |
| Title |
Effective remediation of grossly polluted acidic, and metal-rich, spoil heap drainage using a novel, low-cost, permeable reactive barrier in Northumberland, UK |
Type |
Journal Article |
| Year |
2006 |
Publication |
Environmental Pollution |
Abbreviated Journal |
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| Volume |
143 |
Issue |
2 |
Pages |
261-268 |
| Keywords |
mine water treatment |
| Abstract |
A permeable reactive barrier (PRB) for remediation of coal spoil heap drainage in Northumberland, UK, is described. The drainage has typical chemical characteristics of pH < 4, [acidity] > 1400 mg/L as CaCO3, [Fe] > 300 mg/L, [Mn] > 165 mg/L, [Al] > 100 mg/L and IS041 > 6500 mg/L. During 2 years of operation the PRB has typically removed 50% of the iron and 40% of the sulphate from this subsurface spoil drainage. Bacterial sulphate reduction appears to be a key process of this remediation. Treatment of the effluent from the PRB results in further attenuation; overall reductions in iron and sulphate concentrations are 95% and 67% respectively, and acidity concentration is reduced by an order of magnitude. The mechanisms of attenuation of these, and other, contaminants in the drainage are discussed. Future research and operational objectives for this novel, low-cost, treatment system are also outlined. (c) 2005 Elsevier Ltd. All rights reserved. |
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Effective remediation of grossly polluted acidic, and metal-rich, spoil heap drainage using a novel, low-cost, permeable reactive barrier in Northumberland, UK; Wos:000238277500010; Times Cited: 0; ISI Web of Science |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16928 |
Serial |
109 |
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| Author |
Sapsford, D.; Barnes, A.; Dey, M.; Williams, K.; Jarvis, A.; Younger, P. |
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Type |
Book Whole |
| Year |
2007 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
261-265 |
| Keywords |
passive treatment iron mine water |
| Abstract |
This paper presents iron removal data from a novel low footprint mine water treatment system. The paper discusses possible design configurations and demonstrates that the system could treat 1 L/s of mine water containing 8.4 mg/L of iron to < 1 mg/L with a system footprint of 66 m2. A conventional lagoon and aerobic wetland system would require at least 160 m2 to achieve the same treatment. Other advantages of the system are that it produces a clean and dense sludge amenable to on-site storage and possible recycling and that heavy plant will generally not be required for construction. |
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Mako Edizioni |
Place of Publication |
Cagliari |
Editor |
Cidu, R.; Frau, F. |
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Series Title |
Water in Mining Environments |
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978-88-902955-0-8 |
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| Notes |
Low Footprint Mine Water Treatment: Field Demonstration and Application; 2; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden 2 Abb., 2 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17416 |
Serial |
255 |
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| Author |
Masarczyk, J.; Hansson, C.H.; Solomon, R.L.; Hallmans, B. |
| Title |
Desalination Plant at Kwk-debiensko, Poland – Advanced Mine Drainage Water-treatment Engineering for Zero Discharge |
Type |
Journal Article |
| Year |
1989 |
Publication |
Desalination |
Abbreviated Journal |
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| Volume |
75 |
Issue |
1-3 |
Pages |
259-287 |
| Keywords |
mine water treatment |
| Abstract |
The river water in Poland has, to a great extent, such a high salinity that it cannot be used as drinking water, agricultural or industrial water. A large environmental project is now under progress in Katowice, Poland, in order to eliminate the wastewater discharge from two coal mines — Debiensko and Budryk. The highly brackish water will be desalinated in a reverse osmosis plant, followed by vapor compression distillation with seed crystals (RCC), crystallization and sodium chloride drying. This zero discharge process will produce about 8,000 m3/d drinking water an 370 tonnes/d NaCl. The paper describes the design of the plant. Trial operation of pre-treatment and reverse osmosis in a pilot plant for design of the full-scale plant at Debiensko is described in a separate paper. |
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0011-9164 |
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Desalination Plant at Kwk-debiensko, Poland – Advanced Mine Drainage Water-treatment Engineering for Zero Discharge; Isi:A1989cf92100018; AMD ISI | Wolkersdorfer |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 9786 |
Serial |
28 |
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| Author |
Younger, P.L. |
| Title |
Passive in situ remediation of acidic mine waste leachates: progress and prospects |
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Journal Article |
| Year |
2003 |
Publication |
Land Reclamation: Extending the Boundaries |
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Issue |
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Pages |
253-264 |
| Keywords |
mine water treatment |
| Abstract |
The reclamation of former mining sites is a major challenge in many parts of the world. In relation to the restoration of spoil heaps (mine waste rock piles) and similar bodies of opencast backfill, key challenges include (i) the establishment of stable slopes and minimization of other geotechnical hazards (ii) developing and maintaining a healthy vegetative cover (iii) managing the hydrological behaviour of the restored ground. Significant advances have been made over the past four decades in relation to all four of these objectives. One of the most recalcitrant problems is the ongoing generation and release of acidic leachates, which typically emerge at the toes of (otherwise restored) spoil heaps in the form of springs and seepage areas. Such features are testament to the presence of a “perched” groundwater circulation system within the spoil, and their acidity reflects the continued penetration of oxygen to zones within the heaps which contain reactive pyrite (and other iron sulphide minerals). Two obvious strategies for dealing with this problem are disruption of the perched groundwater system and/or exclusion of oxygen entry. These strategies are now being pursued with considerable success where spoil is being reclaimed for the first time, by the installation of two types of physical barrier (dry covers and water covers). However, where a spoil heap has already been revegetated some decades ago, the destruction of an established sward or woodland in order to retro-fit a dry cover or water cover is rarely an attractive option for dealing with the “secondary dereliction” represented by ongoing toe seepages of acidic leachates. More attractive by far are passive treatment techniques, in which the polluted water is forced to flow through reactive media which serve to neutralize its acidity and remove toxic metals from solution. A brief historical review of the development of such systems reveals a general progression from using limestone as the key neutralizing agent, through a combined use of limestone and compost, to systems in which almost all of the neutralization is achieved by means of bacterial sulphate reduction in the saturated compost media of subsurface-flow bioreactors. In almost all cases, these passive treatment systems include an aerobic, surface flow wetland as the final “polishing” step in the treatment process. Such wetlands combine treatment functions (efficient removal of metals from the now-neutralized waters down to low residual concentrations, and re-oxygenating the water prior to discharge to receiving watercourses) with amenity value (attractive areas for recreational walking, bird-watching etc) and ecological value. |
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Passive in situ remediation of acidic mine waste leachates: progress and prospects; Isip:000183447100035; Times Cited: 0; ISI Web of Science |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17016 |
Serial |
158 |
| Permanent link to this record |
