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Ye, Z.H.; Whiting, S.N.; Qian, J.H.; Lytle, C.M.; Lin, Z.Q.; Terry, N. |
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Title |
Trace element removal from coal ash leachate by a 10-year-old constructed wetland |
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Journal Article |
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Year |
2001 |
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J. Environ. Qual. |
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30 |
Issue |
5 |
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1710-1719 |
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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 |
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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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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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CBU @ c.wolke @ 5703 |
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76 |
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Schueck, J.H. |
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Title |
Limestone diversion wells; a low-maintenance, cost-effective method for treating acid-mine drainage with limestone |
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Book Chapter |
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Year |
1995 |
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Guidebook for the Annual Field Conference of Pennsylvania Geologists, vol.60 Applied geology in the Lock Haven and Williamsport region, Clinton and Lycoming counties, northcentral Pennsylvania |
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9-12 |
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acid mine drainage; Babb Creek watershed; Blossburg coal basin; carbonate rocks; ground water; hydrology; limestone; Pennsylvania; pollution; remediation; sedimentary rocks; Tioga County Pennsylvania; United States; water wells; watersheds; wells 22, Environmental geology |
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Carnein, C.R.; Way, J.H. |
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Limestone diversion wells; a low-maintenance, cost-effective method for treating acid-mine drainage with limestone; GeoRef; English; 1996-018760; 60th annual field conference of Pennsylvania geologists, Williamsport, PA, United States, Oct. 5-7, 1995 References: 3; 1 table, sketch map |
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CBU @ c.wolke @ 6420 |
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77 |
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Bilek, F.; Werner, F.; Schöpke, R. |
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Experimentelle und modellgestützte Entwicklung von Verfahren zur geochemischen Grundwasser- und Untergrundbehandlung zur Gefahrenabwehr im Nordraum des Senftenberger Sees |
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2003 |
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544 |
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Senftenberger See Bergbaurestsee Sulfidbelastung Grundwasserüberwachung |
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; Experimentelle und modellgestützte Entwicklung von Verfahren zur geochemischen Grundwasser- und Untergrundbehandlung zur Gefahrenabwehr im Nordraum des Senftenberger Sees; Lausitzer und Mitteldeutsche Bergbau-Verwaltungsgesellschaft <Berlin>; Technische Universität <Cottbus>; Grundwasserforschungsinstitut <Dresden>; Erschienen: Cottbus [u.a.]; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/6945.pdf; Opac |
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CBU @ c.wolke @ 6945 |
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78 |
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Diamond, J.M.; Bower, W.; Gruber, D. |
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Title |
Use of man-made impoundment in mitigating acid mine drainage in the North Branch Potomac River |
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1993 |
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Environ. Manage. |
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17 |
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14 |
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Acid mine drainage Potomac River Reservoir macroinvertebrate Fish Mayflies |
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The US Department of the Army, Baltimore District Corps of Engineers, oversees a long-term monitoring study to assess and evaluate effects of the Jennings-Randolph reservoir on biota in the North Branch Potomac River. The reservoir was intended, in part, to mitigate effects of acid mine drainage originating in upstream and headwater areas. The present study assessed recovery of benthos and fish in this system, six years after completion of the reservoir. Higher pH and lower iron and sulfate concentrations were observed upstream of the reservoir compared to preimpoundment conditions, suggesting better overall water quality in the upper North Branch. Water quality improved slightly directly downstream of the reservoir. However, the reservoir itself was poorly colonized by macrophytes and benthic organisms, and plankton composition suggested either metal toxicity and/or nutrient limitation. One large tributary to the North Branch and the reservoir (Stony River) was shown to have high (and possibly toxic) levels of manganese, iron, zinc, and aluminum due to subsurface coal mine drainage. Macroinvertebrate diversity and number of taxa were higher in sites downstream of the reservoir in the present study. Compared with previous years, the present study suggested relatively rapid recovery in the lower North Branch due to colonization from two major unimpacted tributaries in this system: Savage River and South Branch Potomac. Abundance of certain mayfly species across sites provided the most clear evidence of longitudinal gradients in water quality parameters and geomorphology. Fish data were consistent with macroinvertebrate results, but site-to-site variation in species composition was greater. Data collected between 1982 and 1987 suggested that certain fish species have unsuccessfully attempted to colonize sites directly downstream of the reservoir despite the more neutral pH water there. Our results show that recovery of biota in the North Branch Potomac was attributed to decreased acid inputs from mining operations and dilution from the Savage River, which contributed better water quality. Continued improvement of North Branch Potomac biota may not be expected unless additional mitigation attempts, either within the reservoir or upstream, are undertaken. |
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0364-152x |
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Feb.; Use of man-made impoundment in mitigating acid mine drainage in the North Branch Potomac River; New York, NY ; Heidelberg ; Berlin : Springer; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7016.pdf; Opac |
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CBU @ c.wolke @ 7016 |
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79 |
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Author |
Dugan, P.R. |
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Prevention of formation of acid drainage from high-sulfur coal refuse by inhibition of iron- and sulfur-oxidizing microorganisms. II. Inhibition in run of mine refuse under simulated field conditions |
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1987 |
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Biotechnol. Bioeng. |
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29 |
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1 |
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6 |
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mine water treatment Chemistry Biochemistry and Biotechnology |
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0006-3592 |
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Jan; Prevention of formation of acid drainage from high-sulfur coal refuse by inhibition of iron- and sulfur-oxidizing microorganisms. II. Inhibition in run of mine refuse under simulated field conditions; New York, NY [u.a.] : Wiley; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7028.pdf; Opac |
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CBU @ c.wolke @ 7028 |
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80 |
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