| Records |
| Author |
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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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 |
Serial |
76 |
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Ashby, J.C. |
| Title |
Injecting alkaline lime sludge and FGD material into underground mines for acid abatement |
Type |
Journal Article |
| Year |
2001 |
Publication |
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Issue |
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Pages |
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acid mine drainage; air quality; alkalinity; chemical composition; coal; combustion; discharge; energy sources; gaseous phase; industrial waste; monitoring; pollution; power plants; regulations; remediation; sedimentary rocks; soils; tailings ponds; toxicity; waste disposal 22, Environmental geology |
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West Virginia Surface Mine Drainage Task Force Symposium |
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Proceedings, 22nd West Virginia surface mine drainage task force symposium |
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2002-047119; Twenty-second West Virginia surface mine drainage task force symposium, Morgantown, WV, United States, April 3-4, 2001 References: 5; illus. incl. 3 tables; GeoRef; English |
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no |
| Call Number |
CBU @ c.wolke @ 5763 |
Serial |
475 |
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| Author |
Dillard, G. |
| Title |
A win-win way to clean up by changing ionic state, new process can precipitate heavy metals |
Type |
Journal Article |
| Year |
2000 |
Publication |
Pay Dirt |
Abbreviated Journal |
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| Volume |
734 |
Issue |
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Pages |
10-11 |
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acid mine drainage; California; chemical composition; companies; environmental analysis; environmental management; heavy metals; ion exchange; ions; metal ores; metals; mining; pollutants; pollution; precipitation; processes; remediation; soils; surface water; United States; water treatment 22, Environmental geology |
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A win-win way to clean up by changing ionic state, new process can precipitate heavy metals; 2004-029026; illus. United States (USA); GeoRef; English |
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no |
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CBU @ c.wolke @ 5822 |
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401 |
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Bowell, R.J. |
| Title |
Sulphate and salt minerals; the problem of treating mine waste |
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Journal Article |
| Year |
2000 |
Publication |
Mining Environmental Management |
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8 |
Issue |
3 |
Pages |
11-13 |
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acid mine drainage; acidification; decontamination; discharge; dissolved materials; ecology; effluents; geomembranes; lime; mines; pollution; precipitation; protection; recycling; reverse osmosis; soils; surface water; suspended materials; toxic materials; waste disposal; waste management 22, Environmental geology |
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0969-4218 |
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Sulphate and salt minerals; the problem of treating mine waste; 2000-062783; illus. incl. 4 tables United Kingdom (GBR); GeoRef; English |
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no |
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CBU @ c.wolke @ 5834 |
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440 |
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| Author |
Miller, S.D. |
| Title |
Overview of acid mine drainage issues and control strategies Remediation and management of degraded lands |
Type |
Book Chapter |
| Year |
1999 |
Publication |
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acid mine drainage; controls; decontamination; environmental analysis; environmental effects; geochemistry; ground water; land management; lime; oxidation; pH; pollutants; pollution; preventive measures; risk assessment; soils; sulfides; surface water; waste disposal; waste management 22, Environmental geology |
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Lewis Publishers |
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Boca Raton |
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Wong, M.H.; Wong, J.W.C.; Baker, A.J.M. |
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157504109x |
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Overview of acid mine drainage issues and control strategies Remediation and management of degraded lands; GeoRef; English; 2000-057936 |
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no |
| Call Number |
CBU @ c.wolke @ 5951 |
Serial |
298 |
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