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| Author |
Murray-Gulde, C.L. |
| Title |
Contributions of Schoenoplectus californicus in a constructed wetland system receiving copper contaminated wastewater |
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Journal Article |
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Water, Air, Soil Pollut. |
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| Volume |
163 |
Issue  |
1-4 |
Pages |
355-378 |
| Keywords |
mine water treatment |
| Abstract |
Functional roles of Schoenoplectus californicus, giant bulrush, were evaluated in an 3.2 ha (8-acre) constructed wetland treatment system receiving copper-contaminated water. The constructed wetland used in this research was designed to decrease bioavailable copper concentrations in a wastestream and eliminate associated toxicity to downstream biota by exploiting the thermodynamic processes responsible for copper speciation. This was achieved by integrating carbon, sulfur and copper biogeochemical cycles. In this system, S. californicus, which represents an integral part of the carbon cycle, provides a physical, chemical and biological role in removing metals from the aqueous phase. The specific contributions of S. californicus in this system are to provide a sustainable carbon source for removal of copper by (1) provision of an organic ligand for sorption of copper entering the system, (2) production of organic ligands through growth of S. californicus, (3) accretion of organic ligands over time due to decomposition of S. californicus detritus, and (4) use of organic carbon as an energy source for dissimilatory sulfate production. Shoots and roots of viable S. californicus sorbed 0.88% and 5.88%, respectively, of copper entering the system. The half-life of S. californicus detritus in the constructed wetland system was approximately 184 d, indicating that sufficient detritus will accrete over time, providing binding sites for copper and an energy source for bacterial metabolic processes that contribute to copper immobilization in wetland systems. |
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Contributions of Schoenoplectus californicus in a constructed wetland system receiving copper contaminated wastewater; Wos:000229973400022; Times Cited: 2; ISI Web of Science |
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no |
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CBU @ c.wolke @ 16969 |
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115 |
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| Title |
Selecting Mine Drainage Treatment Systems |
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Journal Article |
| Year |
1995 |
Publication |
E&Mj-Engineering and Mining Journal |
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196 |
Issue |
10 |
Pages |
Rr24-& |
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mine water treatment |
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Selecting Mine Drainage Treatment Systems; Wos:A1995ta62400001; Times Cited: 0; ISI Web of Science |
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no |
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CBU @ c.wolke @ 8900 |
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87 |
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| Author |
Lovell, H.L. |
| Title |
Limestone Treatment Of Coal Mine Drainage |
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Journal Article |
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1971 |
Publication |
Min. Congr. J. |
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57 |
Issue |
10 |
Pages |
28-& |
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mine water treatment |
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0026-5160 |
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Limestone Treatment Of Coal Mine Drainage; Wos:A1971k631900002; Times Cited: 1; J Allen Overton Jr, 1920 N St Nw, Washington, DC 20036; ISI Web of Science |
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no |
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CBU @ c.wolke @ 9263 |
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101 |
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| Author |
Sasaki, K. |
| Title |
Immobilization of Mn(II) ions by a Mn-oxidizing fungus – Paraconiothyrium sp.-like strain at neutral pHs |
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Journal Article |
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2006 |
Publication |
Mater. Trans. |
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47 |
Issue |
10 |
Pages |
2457-2461 |
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mine water treatment |
| Abstract |
A Mn-oxidizing fungus was isolated from a constructed wetland of Hokkaido (Japan), which is receiving the Mn-impacted drainage, and genetically and morphologically identified as Paraconiothyrium sp.-like strain. The optimum pHs were 6.45-6.64, where is more acidic than those of previously reported Mn-oxidizing fungi. Too much nutrient inhibited fungal Mn-oxidation, and too little nutrient also delayed Mn oxidation even at optimum pH. In order to achieve the oxidation of high concentrations of Mn like mine drainage containing several hundreds g-m(-3) of Mn, it is important to find the best mix ratio among the initial Mn concentrations, inocolumn size and nutrient concentration. The strain has still Mn-tolerance with more than 380 g-m(-3) of Mn, but high Mn(II) oxidation was limited by pH control and supplied nutrient amounts. The biogenic Mn deposit was poorly crystallized birnessite. The strain is an unique Mn-oxidizing fungus having a high Mn tolerance and weakly acidic tolerance, since there has been no record about the property of the strain. There is a potentiality to apply the strain to the environmental bioremediation. |
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Immobilization of Mn(II) ions by a Mn-oxidizing fungus – Paraconiothyrium sp.-like strain at neutral pHs; Wos:000242429300002; Times Cited: 0; ISI Web of Science |
Approved |
no |
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CBU @ c.wolke @ 16940 |
Serial |
103 |
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| Author |
Oleary, W. |
| Title |
Wastewater recycling and environmental constraints at a base metal mine and process facilities |
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Journal Article |
| Year |
1996 |
Publication |
Water Sci. Technol. |
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33 |
Issue |
10-11 |
Pages |
371-379 |
| Keywords |
mine water treatment |
| Abstract |
In temperate areas of abundant freshwater there is seldom an urgency to recycle. The statutory protection of inland waters for beneficial uses such as drinking, food processing and game fishing is requiring industries to choose recycling. A European success in this trend is a base metal mining/milling industry which, since 1977, is implementing hydraulic, hydrological, treatment and ecological studies with wastewaters and mine tailings. A model activity, located 50 km from Dublin is considered. Zinc and lead concentrates produced and exported to smelters ultimately yield approximately 194,000 t and 54,000 t of these respective metals (32 and 21 percent of European production). Water use as originally planned would have been approximately 6m(3)/t of ore milled. While ore milling increased by 25 percent to 8,500t/d in 1993, water use declined by 33 percent to 4m(3)/t. The components making up this reduction range from milling technology efficiency to greater recycling from the 165 ha tailings pond. Environmental standards, based on framework regulations originating in EU Directives, have been instrumental in achieving wastewater savings. A conclusion is the value of integrating water quantity, quality, recycling, storage, production and other factors early in project planning. Copyright (C) 1996 IAWQ. Published by Elsevier Science Ltd. |
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Wastewater recycling and environmental constraints at a base metal mine and process facilities; Wos:A1996vb13300041; Times Cited: 1; ISI Web of Science |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17170 |
Serial |
84 |
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