| 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 |
|
| 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). |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0047-2425 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| 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 |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 5703 |
Serial |
76 |
| Permanent link to this record |
| |
|
| |
| Author |
Goulet, R.R. |
| Title |
The evaluation of metal retention by a constructed wetland using the pulmonate gastropod Helisoma trivolvis (Say) |
Type |
Journal Article |
| Year |
2001 |
Publication |
Archives of Environmental Contamination and Toxicology |
Abbreviated Journal |
|
| Volume |
40 |
Issue |
3 |
Pages |
303-310 |
| Keywords |
mine water treatment |
| Abstract |
Constructed wetlands are built because they can act as sinks fur many pollutants, thereby protecting the water quality of downstream ecosystems. The treatment performance is generally assessed using mass balance calculations. Along with the mass balance approach, we compared the metal content of populations of a common pond snail (Helisoma trivolvis Say) collected upstream and downstream of a 3-year-old constructed wetland. Snails were collected in early May, June, and August 1998. At the same time, water samples for particulate and dissolved metals were taken every 3 days for the duration of the experiment. Overall, the wetland retained most dissolved metals, including Fe, Mn, Cu, Zn, Ni, and Pb, but released dissolved As. However, the wetland released particulate Fe and Mn. With the exception of Zn, the metal concentrations of the downstream snails were on average higher than those measured in the upstream population. The higher metal content of downstream snails was likely related to the significant export of particulate metals by the wetland, despite the overall retention of dissolved metals. This study points to the need for biological as well as chemical monitoring to determine the treatment efficiency and toxicological risk associated with constructed wetlands. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
The evaluation of metal retention by a constructed wetland using the pulmonate gastropod Helisoma trivolvis (Say); Wos:000167524900002; Times Cited: 2; ISI Web of Science |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17049 |
Serial |
125 |
| Permanent link to this record |
| |
|
| |
| Author |
Carlson, L.; Kumpulainen, S. |
| Title |
Retention of harmful elements by ochreous precipitates of iron |
Type |
Journal Article |
| Year |
2001 |
Publication |
Tutkimusraportti Geologian Tutkimuskeskus |
Abbreviated Journal |
|
| Volume |
- |
Issue |
154 |
Pages |
30-33 |
| Keywords |
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 |
| Abstract |
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. |
| Address |
L. Carlson, Tehtaankatu 25 A 4, Helsinki FIN-00150, Finland liisa.carlson@kolumbus.fi |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0781-4240 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Retention of harmful elements by ochreous precipitates of iron; 2392974; Oksidiset rautasaostumat haitallisten aineiden pidattajina. Finland 7; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17533 |
Serial |
421 |
| Permanent link to this record |
| |
|
| |
| Author |
Ye, Z.H. |
| Title |
Removal and distribution of iron, manganese, cobalt, and nickel within a Pennsylvania constructed wetland treating coal combustion by-product leachate |
Type |
Journal Article |
| Year |
2001 |
Publication |
Journal of Environmental Quality |
Abbreviated Journal |
|
| Volume |
30 |
Issue |
4 |
Pages |
1464-1473 |
| Keywords |
mine water treatment |
| Abstract |
A flow-through wetland treatment system was constructed to treat coal combustion by-product leachate from an electrical power station at Springdale, Pennsylvania. In a nine-compartment treatment system, four cattail (Typha latifolia L.) wetland cells (designated Cells I through 4) successfully removed iron (Fe) and manganese (Mn) from the inlet water; Fe and Mn concentrations were decreased by an average of 91% in the first year (May 1996-May 1997), and by 94 and 98% in the second year (July 1997-June 1998), respectively. Cobalt (Co) and nickel (Ni) were decreased by an average of 39 and 47% in the first year, and 98 and 63% in the second year, respectively. Most of the metal removed by the wetland cells was accumulated in sediments, which constituted the largest sink. Except for Fe, metal concentrations in the sediments tended to be greater in the top 5 em of sediment than in the 5- to 10- or 10- to 15-cm layers, and in Cell I than in Cells 2, 3, and 4. Plants constituted a much smaller sink for metals; only 0.91, 4.18, 0.19, and 0.38% of the Fe, Mn, Co, and Ni were accumulated annually in the aboveground tissues of cattail, respectively. A greater proportion of each metal (except Mn) was accumulated in cattail fallen litter and submerged Chara (a macroalga) tissues, that is, 2.81, 2.75, and 1.05% for Fe, Co, and Ni, respectively. Considerably higher concentrations of metals were associated with cattail roots than shoots, although Mn was a notable exception. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Removal and distribution of iron, manganese, cobalt, and nickel within a Pennsylvania constructed wetland treating coal combustion by-product leachate; Wos:000174863000040; Times Cited: 15; ISI Web of Science |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17061 |
Serial |
122 |
| Permanent link to this record |
| |
|
| |
| Author |
Nairn, R.W.; Griffin, B.C.; Strong, J.D.; Hatley, E.L. |
| Title |
Remediation challenges and opportunities at the Tar Creek Superfund Site, Oklahoma |
Type |
Book Chapter |
| Year |
2001 |
Publication |
Proceedings of the Annual National Meeting – American Society for Surface Mining and Reclamation, vol.18 |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
579-584 |
| Keywords |
abandoned mines acid mine drainage collapse structures constructed wetlands environmental analysis geologic hazards ground water human ecology Kansas land subsidence lead metals mines Missouri Oklahoma pollution reclamation remediation springs Superfund sites surface water Tar Creek Superfund Site United States water resources wetlands zinc 22, Environmental geology |
| Abstract |
The Tar Creek Superfund Site is a portion of the abandoned lead and zinc mining area known as the Tri-State Mining District (OK, KS and MO) and includes over 100 square kilometers of disturbed land surface and contaminated water resources in extreme northeastern Oklahoma. Underground mining from the 1890s through the 1960s degraded over 1000 surface hectares, and left nearly 50 km of tunnels, 165 million tons of processed mine waste materials (chat), 300 hectares of tailings impoundments and over 2600 open shafts and boreholes. Approximately 94 million cubic meters of contaminated water currently exist in underground voids. In 1979, metal-rich waters began to discharge into surface waters from natural springs, bore holes and mine shafts. Six communities are located within the boundaries of the Superfund site. Approximately 70% of the site is Native American owned. Subsidence and surface collapse hazards are of significant concern. The Tar Creek site was listed on the National Priorities List (NPL) in 1983 and currently receives a Hazard Ranking System score of 58.15, making Tar Creek the nation's number one NPL site. A 1993 Indian Health Service study demonstrated that 35% of children had blood lead levels above thresholds dangerous to human health. Recent remediation efforts have focused on excavation and replacement of contaminated residential areas. In January 2000, Governor Frank Keating's Tar Creek Task Force was created to take a “vital leadership role in identifying solutions and resources available to address” the myriad environmental problems. The principle final recommendation was the creation of a massive wetland and wildlife refuge to ecologically address health, safety, environmental, and aesthetic concerns. Additional interim measures included continuing the Task Force and subcommittees; study of mine drainage discharge and chat quality; construction of pilot treatment wetlands; mine shaft plugging; investigations of bioaccumulation issues; establishment of an authority to market and export chat, a local steering committee, and a GIS committee; and development of effective federal, state, tribal, and local partnerships. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
Vincent, R.; Burger, J.A.; Marino, G.G.; Olyphant, G.A.; Wessman, S.C.; Darmody, R.G.; Richmond, T.C.; Bengson, S.A.; Nawrot, J.R. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Remediation challenges and opportunities at the Tar Creek Superfund Site, Oklahoma; GeoRef; English; 2002-036287; 18th annual national meeting of the American Society for Surface Mining and Reclamation; Land reclamation, a different approach, Albuquerque, NM, United States, June 3-7, 2001 References: 20; illus. incl. 1 table |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16526 |
Serial |
290 |
| Permanent link to this record |
