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Murray-Gulde, C.L. |
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Contributions of Schoenoplectus californicus in a constructed wetland system receiving copper contaminated wastewater |
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Water, Air, Soil Pollut. |
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163 |
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1-4 |
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355-378 |
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mine water treatment |
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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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CBU @ c.wolke @ 16969 |
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115 |
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Fyson, A.; Nixdorf, B.; Steinberg, C.E.W. |
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Manipulation of the sediment-water interface of extremely acidic mining lakes with potatoes; laboratory studies with intact sediment cores Geochemical and microbial processes in sediments and at the sediment-water interface of acidic mining lakes |
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1998 |
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Water, Air and Soil Pollution |
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353-363 |
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acid mine drainage; acidification; ammonium ion; Brandenburg Germany; Central Europe; concentration; dissolved materials; ecology; Europe; eutrophication; ferric iron; Germany; iron; lacustrine environment; Lusatia; mass balance; metals; nitrate ion; pollutants; pollution; pore water; remediation; sediment-water interface; sediments; surface water; titration; transport 22, Environmental geology |
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108 |
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Peiffer, S. |
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Manipulation of the sediment-water interface of extremely acidic mining lakes with potatoes; laboratory studies with intact sediment cores Geochemical and microbial processes in sediments and at the sediment-water interface of acidic mining lakes; GeoRef; English; 1999-021233; Conference on Geochemical and microbial processes in sediments and at the sediment-water interface of acidic mining lakes, Bayreuth, Federal Republic of Germany, Feb. 1997 References: 17; illus. |
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CBU @ c.wolke @ 6102 |
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21 |
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Tarutis Jr, W.J.; Stark, L.R.; Williams, F.M. |
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Sizing and performance estimation of coal mine drainage wetlands |
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1999 |
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Ecological Engineering |
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12 |
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3-4 |
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353-372 |
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mine water treatment coal mine drainage constructed wetlands efficiency first-order removal loading rate removal kinetics sizing zero-order removal constructed wetlands water-quality iron kinetics removal model phosphorus retention mechanism design Wetlands and estuaries geographical abstracts: physical geography hydrology (71 6 8) acid mine drainage effluent performance assessment remediation wetland management |
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The effectiveness of wetland treatment of acid mine drainage (AMD) was assessed using three measures of performance: treatment efficiency, area-adjusted removal, and first-order removal. Mathematical relationships between these measures were derived from simple kinetic equations. Area-adjusted removal is independent of pollutant concentration (zero-order reaction kinetics), while first-order removal is dependent on concentration. Treatment efficiency is linearly related to area-adjusted removal and exponentially related to first-order removal at constant hydraulic loading rates (flow/area). Examination of previously published data from 35 natural AMD wetlands revealed that statistically significant correlations exist between several of the performance measures for both iron and manganese removal, but these correlations are potentially spurious because these measures are derived from, and are mathematical rearrangements of, the same operating data. The use of treatment efficiency as a measure of performance between wetlands is not recommended because it is a relative measure that does not account for influent concentration differences. Area-adjusted removal accounts for mass loading effects, but it fails to separate the flow and concentration components, which is necessary if removal is first-order. Available empirical evidence suggests that AMD pollutant removal is better described by first-order kinetics. If removal is first-order, the use of area-adjusted rates for determining the wetland area required for treating relatively low pollutant concentrations will result in undersized wetlands. The effects of concentration and flow rate on wetland area predictions for constant influent loading rates also depend on the kinetics of pollutant removal. If removal is zero-order, the wetland area required to treat a discharge to meet some target effluent concentration is a decreasing linear function of influent concentration (and an inverse function of flow rate). However, if removal is first-order, the required wetland area is a non-linear function of the relative influent concentration. Further research is needed for developing accurate first-order rate constants as a function of influent water chemistry and ecosystem characteristics in order to successfully apply the first-order removal model to the design of more effective AMD wetland treatment systems. |
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W.J. Tarutis Jr., Department of Natural Science, Lackawanna Junior College, 501 Vine Street, Scranton, PA 18509, United States |
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0925-8574 |
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Feb.; Sizing and performance estimation of coal mine drainage wetlands; 0427766; Netherlands 46; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10596.pdf; Geobase |
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CBU @ c.wolke @ 10596 |
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25 |
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Wolkersdorfer, C. |
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2006 |
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348 pp |
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mine water stratification prediction tracer tests HABIL |
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unpubl. Habilitation Thesis TU Bergakademie Freiberg |
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Freiberg |
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Water Management at Abandoned Flooded Underground Mines – Fundamentals – Tracer Tests – Modelling – Water Treatment |
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Water Management at Abandoned Flooded Underground Mines – Fundamentals – Tracer Tests – Modelling – Water Treatment; 1; AMD ISI | Wolkersdorfer; FG 123 Abb., 34 Tab. |
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CBU @ c.wolke @ 17445 |
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204 |
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Author |
Oster, A. |
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Relocating the Inde river – Post-mining design of a river meadow landscape. Verlegung des Flusses Inde – Bergbauliche Gestaltung einer Flussauenlandschaft |
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Journal Article |
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2005 |
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World of Mining Surface & Underground |
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57 |
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5 |
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346-351 |
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Fluss=Gewässer Verlegen Braunkohlenbergbau Tagebau Ökologie Umweltschutz Landschaftsgestaltung Wasserbau Flutung Deutschland Flussverlegung Wiedernutzbarmachung |
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Vor dem Hintergrund einer planmäßigen Tagebauentwicklung muss der das Gewinnungsfeld in Nord-Süd-Richtung durchquerende Fluss Inde Ende 2005 bergbaulich in Anspruch genommen werden. Als Ersatz wurde auf Grundlage des Planfeststellungsbeschlusses vom 10.09.1998 eine neue Inde auf einer Länge von rd. 12 km erstellt. Rund 10 km der neuen Inde liegt innerhalb des Tagebaufeldes. Hierzu musste eine Flusslandschaft angelegt werden. Im Gegensatz bisher anthropogen geprägten Inde, ist eine naturnahe und weiträumige Flusslandschaft vorgesehen. Die Gestaltung soll, in Verbindung mit den zahlreichen eingebrachten Landschaftselementen wie Flutmulden, Altarmansätzen und Kolke, eine artenreiche und ökologisch hochwertige Auenlandschaft ermöglichen. Die Flutung der neuen Inde erfolgt auf Grundlage eines dreiphasigen Gewässerumschlusskonzeptes. Im Anschluss an die Flutung soll ein Monitoring- Programm zur Dokumentation der hydrodynamischen, morphologischen und landschaftsökologischen Entwicklung der Indeflur durchgeführt werden. Against the background of the scheduled eastward development of the Inden opencast mine, the Inde river which runs there must make way for mining operations at the end of 2005. Prior to this, as a replacement for the riverbed, which is some 4.5 km long, a riverscape has had to be created as a bypass in the west, mainly within the scope of rehabilitation measures. The model built for this purpose based on historical records provides for a close-to-nature and spacious riverscape with hand- and soft-wood meadows, unlike the anthropogenically marked Inde of today, with a meandering mean water bed. This design, in conjunction with the many installed landscape elements, like flood hollows, creeks and potholes, aims at creating a diverse and ecologically high-quality meadow landscape. The main factors impacting the river's route were the opencast mine's geometry and progress, as well as the planned and existing utilization of the land surfaces outside the opencast field. Besides these constraints, there were stipulated vertical points due to hydraulic requirements. The Inde plains, taking account of the planned route, were created on the basis of a design template, which provides for a stable level, a sealing layer and a cultivatable meadow substrate layer. In addition, the meadow substrate layer protects the sealing layer from erosion thanks to its medium- and coarse-grained gravel content. The Inde was constructed in the opencast field within the scope of rehabilitation in spreader operations, meaning that it was possible to dump the material to be installed in line with the design template and given elevations. The flooding of the 'new' Inde was based on a three-phase waterway rerouting concept and provided for increasing discharge quantities. This enabled a bottom covering layer to be formed successively, and ailowed the aquatic fauna to gently adapt to the changed living conditions and further seed material to be flushed in. |
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Inden Opencast Mine, RWE Power, Eschweiler, DE |
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1613-2408 |
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Relocating the Inde river – Post-mining design of a river meadow landscape. Verlegung des Flusses Inde – Bergbauliche Gestaltung einer Flussauenlandschaft; 36448, BERG , 19.12.05; Words: 652; 200511 07020; 6 Seiten, 13 Bilder, 5 Quellen 3UX *Umweltbelastung, technik* 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik*; BERG, Copyright FIZ Technik e.V.; EN Englisch |
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Call Number |
CBU @ c.wolke @ 17581 |
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275 |
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