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 |
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76 |
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Author |
Nakazawa, H. |
Title |
Treatment of acid mine drainage containing iron ions and arsenic for utilization of the sludge |
Type |
Journal Article |
Year |
2006 |
Publication |
Sohn International Symposium Advanced Processing of Metals and Materials, Vol 9 |
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Issue |
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Pages |
373-381 |
Keywords |
mine water treatment arsenic biotechnology filtration iron membranes microorganisms mining industry oxidation sludge treatment acid mine drainage arsenic ion sludge treatment Horobetsu mine Hokkaido Japan ferrous iron membrane filter pore size arsenite solutions microbial oxidation As Fe Manufacturing and Production |
Abstract |
An acid mine drainage in abandoned Horobetsu mine in Hokkaido, Japan, contains arsenic and iron ions; total arsenic ca.10ppm, As(III) ca. 8.5ppm, total iron 379ppm, ferrous iron 266ppm, pH1.8. Arsenic occurs mostly as arsenite (As (III)) or arsenate (As (V)) in natural water. As(III) is more difficult to be remove than As(V), and it is necessary to oxidize As(III) to As(V) for effective removal. 5mL of the mine drainage or its filtrate through the membrane filter (pore size 0.45 mu m) were added to arsenite solutions (pH1.8) with the concentration of 5ppm. After the incubation of 30 days, As(III) was oxidized completely with the addition of the mine drainage while the oxidation did not occur with the addition of filtrate, indicating the microbial oxidation of As(III). In this paper, we have investigated the microbial oxidation of As(III) in acid water below pH2.0. |
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0-87339-642-1 |
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Aug 27-31; Treatment of acid mine drainage containing iron ions and arsenic for utilization of the sludge; Isip:000241817200032; Conference Paper Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17456 |
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151 |
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Author |
Wiseman, I.M.; Rutt, G.P.; Edwards, P.J. |
Title |
Constructed wetlands for minewater treatment: Environmental benefits and ecological recovery |
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Journal Article |
Year |
2004 |
Publication |
Water and Environment Journal |
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Volume |
18 |
Issue |
3 |
Pages |
133-138 |
Keywords |
mine water treatment |
Abstract |
The ecology of the River Pelenna (in South Wales) was impoverished by polluted discharges from abandoned coal mines. A series of passive constructed wetlands was created in order to treat these discharges and to improve the ecology of the river. A three-year Environment Agency R&D project investigated the performance, environmental benefits and sustainability of the constructed wetlands. It showed that the treatment systems were removing most of the iron contamination. In the reaches downstream from the minewaters, the dissolved-iron concentration quickly dropped below the target level. Invertebrate abundance, trout and riverine bird populations increased in following years. However, occasional overflows from the systems have significantly affected the ecology of one stretch of river The research work has provided an insight into the potential for ecological recovery associated with future minewater treatment. |
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1747-6585 |
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Notes ![sorted by Notes field, ascending order (up)](img/sort_asc.gif) |
Aug.; Constructed wetlands for minewater treatment: Environmental benefits and ecological recovery; Wos:000230520000002; Times Cited: 0; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7891.pdf; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 7891 |
Serial |
68 |
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Author |
Deul, M. |
Title |
Limestone for controlling acid mine drainage and for the treatment of acid mine water |
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Journal Article |
Year |
1976 |
Publication |
Int. J. Rock Mech. Min. Sci. and Geomech. Abstr. |
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13 |
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8 |
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A92-111 |
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1365-1609 |
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Aug; Limestone for controlling acid mine drainage and for the treatment of acid mine water; Proc. 10th Forum Geol. Ind. Miner. Ohio Dept. Nat. Res. Div. Geol. Surv. Report 1, 1974, P43-46; Science Direct |
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CBU @ c.wolke @ 15103 |
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51 |
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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 |
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Book Chapter |
Year |
1994 |
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Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 |
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Pages |
60-69 |
Keywords |
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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Notes ![sorted by Notes field, ascending order (up)](img/sort_asc.gif) |
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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CBU @ c.wolke @ 6568 |
Serial |
353 |
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