| Records |
| Author |
Konieczny, K. |
Title  |
Mining waters treatment for drinking and economic aims |
Type |
Journal Article |
| Year |
2003 |
Publication |
VI National Polish Scientific Conference on Complex and Detailed Problems of Environmental Engineering |
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| Volume |
21 |
Issue |
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Pages |
333-348 |
| Keywords |
mine water treatment |
| Abstract |
Poland is comparatively a poor country in relation to resources of drinking water. In count per capita it is oil one of the last places in Europe. Such state forces to save resources for example by closing water circulations and also desalination of mining waters. |
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Mining waters treatment for drinking and economic aims; Isip:000245280000020; Times Cited: 0; ISI Web of Science |
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| Call Number |
CBU @ c.wolke @ 7958 |
Serial |
149 |
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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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Pages |
253-264 |
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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 |
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CBU @ c.wolke @ 17016 |
Serial |
158 |
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Chua, A.S.M.; Takabatake, H.; Satoh, H.; Mino, T. |
| Title |
Production of polyhydroxyalkanoates (PHA) by activated sludge treating municipal wastewater: effect of pH, sludge retention time (SRT), and acetate concentration in influent |
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Journal Article |
| Year |
2003 |
Publication |
Water Res |
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37 |
Issue |
15 |
Pages |
3602-3611 |
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0043-1354 |
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Production of polyhydroxyalkanoates (PHA) by activated sludge treating municipal wastewater: effect of pH, sludge retention time (SRT), and acetate concentration in influent; 1647413788; UB Bayreuth <703> TU Berlin <83> UB Braunschweig <84> SUB Bremen <46> UB Cottbus <Co 1> SLUB Dresden <14> SUB Goettingen <7> SUB+Uni Hamburg <18> TUB Hamburg <830> TIB/UB Hannover <89> UB Ilmenau <Ilm 1> UB Karlsruhe <90> ULB + FH Merseburg <3/55> BSB München <12> UB Stuttgart <93> UB Hohenheim <100> UB Trier <385> Österreichische ZB Physik, Wie; OLC-SSG Technik – Online Contents-Sondersammelgebiete |
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CBU @ c.wolke @ 2160 |
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417 |
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| Author |
Wiseman, I.M.; Edwards, P.J.; Rutt, G.P. |
| Title |
Recovery of an aquatic ecosystem following treatment of abandoned mine drainage with constructed wetlands |
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Journal Article |
| Year |
2003 |
Publication |
Land Contam. Reclam. |
Abbreviated Journal |
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| Volume |
11 |
Issue |
2 |
Pages |
221-230 |
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Pollution and waste management non radioactive Groundwater problems and environmental effects Wetlands and estuaries geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) geographical abstracts: physical geography hydrology (71 6 8) coal mine recovery aquatic ecosystem constructed wetland water treatment mine drainage abandoned mine |
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Seven kilometres of the River Pelenna in South Wales were impacted for approximately 30 years by discharges from abandoned coal mines. Elevated iron and low pH caused significant ochreous staining and had detrimental effects on the river ecology. The River Pelenna Mine water project constructed a series of passive wetland treatment systems to treat these discharges. Monitoring of the performance and environmental benefits of these has been undertaken as part of an Environment Agency R&D project. This project has assessed the changes in water quality as well as monitoring populations of invertebrates, fish and birds between 1993 and 2001. Performance data from the wetlands show that on average the three systems are removing between 82 and 95% of the iron loading from the mine waters. In the rivers downstream, the dissolved iron concentration has dropped to below the Environmental Quality Standard (EQS) of 1 mg/L for the majority of the time. Increases in pH downstream of the discharges have also been demonstrated. Trout (Salmo trutta) recovered quickly following mine water treatment, returning the next year to areas that previously had no fish. Intermittent problems with overflows from the treatment systems temporarily depleted the numbers, but the latest data indicate a thriving population. The overflow problems and also background episodes of acidity have affected the recovery of the riverine invertebrates. However, there have been gradual improvements in the catchment, and in the summer of 2001 most sites held faunas which approached those found in unpolluted controls. Recovery of the invertebrate fauna is reflected in marked increases in the breeding success of riverine birds between 1996 and 2001. This study has shown that constructed wetlands can be an effective, low cost and sustainable solution to ecological damage caused by abandoned mine drainage. |
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I.M. Wiseman, Environment Agency Wales, 19 Penyfai Lane, Furnace, Llanelli SA15 4EL, United Kingdom |
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0967-0513 |
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Recovery of an aquatic ecosystem following treatment of abandoned mine drainage with constructed wetlands; 2530429; United-Kingdom 25; Geobase |
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CBU @ c.wolke @ 17516 |
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206 |
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Anonymous |
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Red menace -- Alumina waste products neutralised – As a result of the standard aluminium extraction process, a large amount of of highly alkaline 'red mud' is produced, containing various minerals left over from the bauxite, and this must be disposed of safely, treated or stored. Using a partial-neutralising process involving sea water, Virotec has developed an environmentally responsible process that turns the mud into a mild alkali that is very good at neutralising acid in, for example, acid mine waste |
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Journal Article |
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2003 |
Publication |
Materials world |
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11 |
Issue |
6 |
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22-25 |
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0967-8638 |
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Red menace -- Alumina waste products neutralised – As a result of the standard aluminium extraction process, a large amount of of highly alkaline 'red mud' is produced, containing various minerals left over from the bauxite, and this must be disposed of safely, treated or stored. Using a partial-neutralising process involving sea water, Virotec has developed an environmentally responsible process that turns the mud into a mild alkali that is very good at neutralising acid in, for example, acid mine waste; 1645797473; UB Clausthal <104> TU Freiberg <105> HSU Hamburg <705> TIB/UB Hannover <89> THULB Jena <27> UB Magdeburg <Ma 9> TUB München <91>; OLC-SSG Geowissenschaften – Online Contents-Sondersammelgebiete |
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CBU @ c.wolke @ 2109 |
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480 |
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