| Records |
| Author |
Parker, G.; Noller, B.; Waite, T.D. |
| Title |
Assessment of the use of fast-weathering silicate minerals to buffer AMD in surface waters in tropical Australia |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Sudbury '99; Mining and the environment II; Conference proceedings |
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| Keywords |
acid mine drainage Australasia Australia buffers carbonate ion geochemistry Northern Territory Australia Pine Creek Geosyncline pollution pyrite sulfides surface water tropical environment water quality 22, Environmental geology |
| Abstract |
Surface waters in the Pine Creek Geosyncline (located in Australia's “Top End”, defined as the area of Australia north of 15 degrees S) are characterized by their low carbonate buffering capacity. These waters are buffered by silicate weathering and hence are slightly acidic, ranging in pH from 4.0 to 6.0. The Pine Creek Geosyncline contains most of the Top Ends' economic mineral deposits and characteristically shows no correlation between carbonate minerals and sulfidic orebodies hosting gold deposits (unlike uranium deposits). Thus many gold mines do not have ready access to carbonate minerals for buffering acid mine drainage (AMD). It is possible that locally available fast-weathering silicate minerals may be used to buffer AMD seeps. The buffering intensity of silicate minerals exceeds that of carbonate minerals, but their slow dissolution kinetics has ensured that these materials have received little attention in treating AMD. In addition, carbonate mineral dissolution is retarded when contacted with intense AMD solutions due to the formation of surface coatings of iron minerals. The lower pH range of silicate mineral dissolution may prevent the formation of such coatings. The Pine Creek Geosyncline consists of a complex geochemistry, and a number of fast-weathering silicate minerals have been noted in various areas. The difficulty in assessing such minerals for use in buffering AMD is the lack of kinetic data available under conditions prevalent AMD (i.e., low pH solutions saturated with aluminium and silica). This study sets out to evaluate the applicability of using such minerals to treat AMD surface seeps. |
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Goldsack, D.E.; Belzile, N.; Yearwood, P.; Hall, G.J. |
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ISBN |
0886670470 |
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Notes  |
Assessment of the use of fast-weathering silicate minerals to buffer AMD in surface waters in tropical Australia; GeoRef; English; 2000-048644; Sudbury '99; Mining and the environment II, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 36; illus. incl. 2 tables |
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no |
| Call Number |
CBU @ c.wolke @ 16594 |
Serial |
273 |
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Ye, Z.H.; Whiting, S.N.; Qian, J.H.; Lytle, C.M.; Lin, Z.Q.; Terry, N. |
| Title |
Trace element removal from coal ash leachate by a 10-year-old constructed wetland |
Type |
Journal Article |
| Year |
2001 |
Publication |
J. Environ. Qual. |
Abbreviated Journal |
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| Volume |
30 |
Issue |
5 |
Pages |
1710-1719 |
| Keywords |
acid mine drainage; Alabama; ash; bioaccumulation; boron; cadmium; constructed wetlands; environmental analysis; environmental effects; iron; Jackson County Alabama; Juncus effusus; leachate; manganese; metals; pH; pollutants; pollution; remediation; soils; sulfur; trace elements; Typha latifolia; United States; vegetation; waste water; wetlands; Widows Creek; Widows Creek Steam Plant; zinc; Typha; Juncus 22, Environmental geology |
| Abstract |
This study investigated the ability of a 10-yr-old constructed wetland to treat metal-contaminated leachate emanating from a coal ash pile at the Widows Creek electric utility, Alabama (USA). The two vegetated cells, which were dominated by cattail (Typha latifolia L.) and soft rush (Juncus effusus L.), were very effective at removing Fe and Cd from the wastewater, but less efficient for Zn, S, B, and Mn. The concentrations were decreased by up to 99% for Fe, 91% for Cd, 63% for Zn, 61% for S, 58% for Mn, and 50% for B. Higher pH levels (>6) in standing water substantially improved the removing efficiency of the wetland for Mn only. The belowground tissues of both cattail and soft rush had high concentrations of all elements; only for Mn, however, did the concentration in the shoots exceed those in the belowground tissues. The concentrations of trace elements in fallen litter were higher than in the living shoots, but lower than in the belowground tissues. ne trace element accumulation in the plants accounted for less than 2.5% of the annual loading of each trace element into the wetland. The sediments were the primary sinks for the elements removed from the wastewater. Except for Mn, the concentrations of trace elements in the upper layer (0-5 cm) of the sediment profile tended to be higher than the lower layers (5-10 and 10-15 cm). We conclude that constructed wetlands are still able to efficiently remove metals in the long term (i.e., >10 yr after construction). |
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0047-2425 |
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| Notes |
Aug 1; Trace element removal from coal ash leachate by a 10-year-old constructed wetland; 2002-017274; References: 33; illus. incl. 2 tables United States (USA); file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/5703.pdf; GeoRef; English |
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no |
| Call Number |
CBU @ c.wolke @ 5703 |
Serial |
76 |
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| Author |
Hellier, W.W.; Giovannitti, E.F.; Slack, P.T. |
| Title |
Best professional judgement analysis for constructed wetlands as a best available technology for the treatment of post-mining groundwater seeps |
Type |
Book Chapter |
| Year |
1994 |
Publication |
Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 |
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Issue |
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Pages |
60-69 |
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acid mine drainage; coal mines; geochemistry; ground water; iron; manganese; metals; mines; mining; mining geology; open-pit mining; pH; pollution; reclamation; remediation; seepage; surface mining; tailings; waste disposal; wetlands 22, Environmental geology |
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Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 1 of 4; Mine drainage |
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Best professional judgement analysis for constructed wetlands as a best available technology for the treatment of post-mining groundwater seeps; GeoRef; English; 2007-045158; International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 9; illus. incl. 2 tables |
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no |
| Call Number |
CBU @ c.wolke @ 6568 |
Serial |
353 |
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| Author |
Boonstra, J.; van Lier, R.; Janssen, G.; Dijkman, H.; Buisman, C.J.N. |
| Title |
Biological treatment of acid mine drainage |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Process Metallurgy, vol.9, Part B |
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Issue |
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Pages |
559-567 |
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acid mine drainage adsorption alkaline earth metals arsenic Bingham Canyon Mine bioremediation Budelco Zinc Refinery cadmium copper Cornwall England England Europe Great Britain heavy metals iron magnesium manganese metals Netherlands pH phase equilibria pollution remediation sulfate ion United Kingdom United States Utah Western Europe Wheal Jane Mine zinc 22, Environmental geology |
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Amils, R.; Ballester, A. |
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Biohydrometallurgy and the environment toward the mining of the 21st century; proceedings of the International biohydrometallurgy symposium IBS'99, Part B, Molecular biology, biosorption, bioremediation |
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ISBN |
0444501932 |
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Biological treatment of acid mine drainage; GeoRef; English; 2000-049809; International biohydrometallurgy symposium IBS'99, Madrid, Spain, June 20-23, 1999 References: 11; illus. incl. 5 tables |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16595 |
Serial |
442 |
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| Author |
Sato, D.; Tazaki, K. |
| Title |
Calcification treatment of mine drainage and depositional formula of heavy metals |
Type |
Journal Article |
| Year |
2000 |
Publication |
Chikyu Kagaku = Earth Science |
Abbreviated Journal |
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| Volume |
54 |
Issue |
5 |
Pages |
328-336 |
| Keywords |
acid mine drainage Asia calcification deposition ettringite Far East heavy metals Ishikawa Japan Japan lime Ogoya Mine pollution sulfates waste water water treatment 22, Environmental geology |
| Abstract |
Depositional formula of heavy metals after disposal of the mine drainage from the Ogoya Mine in Ishikawa Prefecture, Japan, was mineralogically investigated. Strong acidic wastewater (pH 3.5) from pithead of the mine contains high concentration of heavy metals. In this mine, neutralizing coagulation treatment is going on by slaked lime (calcium hydroxides: Ca(OH) (sub 2) ). Core samples were collected at disposal pond to which the treated wastewater flows. The core samples were divided into 44 layers based on the color variation. The mineralogical and chemical compositions of each layer were analyzed by an X-ray powder diffractometer (XRD), an energy dispersive X-ray fluorescence analyzer (ED-XRF) and a NCS elemental analyzer. The upper parts are rich in brown colored layers, whereas discolored are the deeper parts. The color variation is relevant to Fe concentration. Brown colored core sections are composed of abundant hydrous ferric oxides with heavy metals, such as Cu, Zn, and Cd. On the other hand, S concentration gradually increases with depth. XRD data indicated that calcite decreases with increasing depth, and ettringite is produced at the deeper parts. Cd concentration shows similar vertical profile to those of calcite and ettringite. The results revealed that hydrous ferric oxides, calcite and ettringite are formed on deposition, whereby incorporating the heavy metals. |
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0366-6611 |
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| Notes |
Calcification treatment of mine drainage and depositional formula of heavy metals; 2001-032610; References: 19; illus. incl. 1 table, sketch map Japan (JPN); GeoRef; Japanese |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16543 |
Serial |
252 |
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