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McLeod, K.W.; Ciravolo, T.G. |
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Title |
Sensitivity of water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum) seedlings to manganese enrichment under water-saturated conditions |
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Journal Article |
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Year |
2003 |
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Environmental Toxicology and Chemistry |
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22 |
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12 |
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2948-2951 |
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Heavy metals ecological abstracts: pollution (73 7 3) seedling saturated medium biomass manganese sensitivity analysis bioaccumulation Nyssa aquatica Taxodium distichum |
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Abstract |
In anaerobic soils of wetlands, Mn is highly available to plants because of the decreasing redox potential and pH of flooded soil. When growing adjacent to each another in wetland forests, water tupelo (Nyssa aquatica L.) had 10 times greater leaf manganese concentration than bald cypress (Taxodium distichum [L.] Richard). This interspecific difference was examined over a range of manganese-enriched soil conditions in a greenhouse experiment. Water tupelo and bald cypress seedlings were grown in fertilized potting soil enriched with 0, 40, 80, 160, 240, 320, and 400 mg Mn/L of soil and kept at saturated to slightly flooded conditions. Leaf Mn concentration was greater in water tupelo than bald cypress for all but the highest Mn addition treatment. Growth of water tupelo seedlings was adversely affected in treatments greater than 160 mg Mn/L. Total biomass of water tupelo in the highest Mn treatment was less than 50% of the control. At low levels of added Mn, bald cypress was able to restrict uptake of Mn at the roots with resulting low leaf Mn concentrations. Once that root restriction was exceeded, Mn concentration in bald cypress leaves increased greatly with treatment; that is, the highest treatment was 40 times greater than control (4,603 vs 100 < mu >g/g, respectively), but biomass of bald cypress was unaffected by manganese additions. Bald cypress, a tree that does not naturally accumulate manganese, does so under manganese-enriched conditions and without biomass reduction in contrast to water tupelo, which is severely affected by higher soil Mn concentrations. Thus, bald cypress would be less affected by increased manganese availability in swamps receiving acidic inputs such as acid mine drainage, acid rain, or oxidization of pyritic soils. |
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K.W. McLeod, Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, United States mcleod@srel.edu |
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0730-7268 |
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Sensitivity of water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum) seedlings to manganese enrichment under water-saturated conditions; 2574798; United-States 15; Geobase |
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CBU @ c.wolke @ 16010 |
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302 |
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Lushnikova, O.Y. |
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Kompleksirovaniye metodov tamponazha i biolokatsii dlya zashchity podzemnykh vod ot zagryazneniya i istoshcheniya. Combined methods of grouting and biolocation for protection of ground water from pollution and depletion |
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Journal Article |
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1996 |
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Izvestiya Vysshikh Uchebnykh Zavedeniy. Gornyy Zhurnal |
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1996 |
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12 |
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49-52 |
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acid mine drainage; conservation; ecology; fluorimetry; geochemistry; ground water; grouting; hydrology; industrial waste; land use; leaking underground storage tanks; mines; monitoring; natural resources; pollutants; pollution; reclamation; soil treatment; soils; toxic materials; waste disposal; water quality; water regimes; water table 22, Environmental geology |
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0536-1028 |
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Kompleksirovaniye metodov tamponazha i biolokatsii dlya zashchity podzemnykh vod ot zagryazneniya i istoshcheniya. Combined methods of grouting and biolocation for protection of ground water from pollution and depletion; 1997-070630; Russian Federation (RUS); GeoRef; Russian |
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CBU @ c.wolke @ 6326 |
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312 |
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Akcil, A.; Koldas, S. |
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Acid Mine Drainage (AMD): causes, treatment and case studies |
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Journal Article |
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2006 |
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J. Cleaner Prod. |
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14 |
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12-13 |
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1139-1145 |
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contamination effluents government industrial pollution industrial waste mining industry research initiatives wastewater treatment acid mine drainage environmental problems mining industry government research initiatives contamination civil engineering mining quarrying activity environmental impact acid generating process acid drainage migration prevention measures effluent treatment chemical treatment biological treatment Manufacturing and Production Entwässern=Gelände Umweltbelastung Bauingenieurwesen Bergbau Sickerwasser Steinbruch Säureproduktion Neutralisation Bergbauindustrie technische Forschung Ingenieurswissenschaft Steinbruchabbau Acid Mine Drainage Mining Environmental Chemical and biological treatment |
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This paper describes Acid Mine Drainage (AMD) generation and its associated technical issues. As AMD is recognized as one of the more serious environmental problems in the mining industry, its causes, prediction and treatment have become the focus of a number of research initiatives commissioned by governments, the mining industry, universities and research establishments, with additional inputs from the general public and environmental groups. In industry, contamination from AMD is associated with construction, civil engineering mining and quarrying activities. Its environmental impact, however, can be minimized at three basic levels: through primary prevention of the acid-generating process; secondary control, which involves deployment of acid drainage migration prevention measures; and tertiary control, or the collection and treatment of effluent. |
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0959-6526 |
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Acid Mine Drainage (AMD): causes, treatment and case studies; Science Direct |
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CBU @ c.wolke @ 17462 |
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36 |
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Author |
Carlson, L.; Kumpulainen, S. |
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Title |
Retention of harmful elements by ochreous precipitates of iron |
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Journal Article |
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2001 |
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Tutkimusraportti Geologian Tutkimuskeskus |
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- |
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154 |
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30-33 |
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Surface water quality Pollution and waste management non radioactive geographical abstracts: physical geography hydrology (71 6 9) geological abstracts: environmental geology (72 14 2) iron oxide precipitation chemistry sulfate arsenate heavy metal pH water pollution remediation |
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The capability of soil fines to fix harmful elements, e.g. heavy metals and arsenic, depends on specific surface area and other characteristics, such as surface charge. In the pH-range typical of natural waters (pH 5,5-7,5), the surfaces of fine-grained silicate particles and manganese oxides are negatively charged; consequently cations, such as heavy metals, fix effectively to them. The iron oxide surfaces are usually positively charged and typically fix anions, such as sulphate and arsenate. Retention of anions is especially extensive to precipitates formed from acid mine drainage (pH 2,5-5,0). For example, precipitates found at Paroistenjarvi mine, Finland, contain more than 70 g/kg of arsenic (dry matter). Adsorbed anions, e.g. sulphate, enhance the capacity of precipitate to fix heavy metal cations in low-pH environments. |
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L. Carlson, Tehtaankatu 25 A 4, Helsinki FIN-00150, Finland liisa.carlson@kolumbus.fi |
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0781-4240 |
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Retention of harmful elements by ochreous precipitates of iron; 2392974; Oksidiset rautasaostumat haitallisten aineiden pidattajina. Finland 7; Geobase |
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CBU @ c.wolke @ 17533 |
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421 |
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Author |
Goodman, G.T. |
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Title |
Ecology and the problems of rehabilitating wastes from mineral extraction |
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1974 |
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Proceedings of the Royal Society of London, Series A Mathematical and Physical Sciences |
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339 |
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1618 |
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373-387 |
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minerals mining natural resources pollution waste disposal ecology mineral extraction visual ugliness health hazards safety hazards reclamation process development planning site purchase land clearance land forming stabilisation drainage revegetation rehabilitation of wastes Physics Manufacturing and Production |
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Environmental problems which may be associated with mineral extraction are: (a) the visual ugliness of open pits, waste tips, and working mess; (b) the nuisance of wind- and water-borne dusts; (c) the health hazards to wildlife, crops, livestock and man of locally increased environmental burdens of potentially toxic metals (e.g. Pb, Cd, As, Zn, Cu, Ni) derived from wind- and water-borne mine dusts and smelter smokes; (d) the safety hazards of surface subsidence and tip-slippage from deep-mining. All these disamenities can be cured or reduced by the reclamation process which involves a blend of socio-economic, legal, planning, civil engineering and biological expertise devoted to development planning, site purchase, land clearance, land forming, stabilization, drainage and revegetation of the affected site |
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0080-4630 |
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Ecology and the problems of rehabilitating wastes from mineral extraction; 669765; Conference Paper; Journal Paper; SilverPlatter; Ovid Technologies |
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CBU @ c.wolke @ 16789 |
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369 |
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