| |
Records |
Links |
|
Author |
Ntengwe, F.W. |
|
| |
Title |
An overview of industrial wastewater treatment and analysis as means of preventing pollution of surface and underground water bodies – The case of Nkana Mine in Zambia |
Type |
Journal Article |
| |
Year  |
2005 |
Publication |
Phys. Chem. Earth |
Abbreviated Journal |
|
|
| |
Volume |
30 |
Issue |
11-16 Spec. Iss. |
Pages |
726-734 |
|
| |
Keywords |
mine water treatment Groundwater problems and environmental effects Pollution and waste management non radioactive geomechanics abstracts: excavations (77 10 10) geological abstracts: environmental geology (72 14 2) wastewater pollution control acid mine drainage Hyacinthus Zambia Southern Africa Sub Saharan Africa Africa Eastern Hemisphere World |
|
| |
Abstract |
The wastewaters coming from mining operations usually have low pH (acidic) values and high levels of metal pollutants depending on the type of metals being extracted. If unchecked, the acidity and metals will have an impact on the surface water. The organisms and plants can adversely be affected and this renders both surface and underground water unsuitable for use by the communities. The installation of a treatment plant that can handle the wastewaters so that pH and levels of pollutants are reduced to acceptable levels provides a solution to the prevention of polluting surface and underground waters and damage to ecosystems both in water and surrounding soils. The samples were collected at five points and analyzed for acidity, total suspended solids, and metals. It was found that the pH fluctuated between pH 2 when neutralization was forgotten and pH 11 when neutralization took place. The levels of metals that could cause impacts to the water ecosystem were found to be high when the pH was low. High levels of metals interfere with multiplication of microorganisms, which help in the natural purification of water in stream and river bodies. The fish and hyacinth placed in water at the two extremes of pH 2 and pH 11 could not survive indicating that wastewaters from mining areas should be adequately treated and neutralized to pH range 6-9 if life in natural waters is to be sustained. < copyright > 2005 Elsevier Ltd. All rights reserved. |
|
| |
Address |
F.W. Ntengwe, Copperbelt University, School of Technology, P.O. Box 21692, Kitwe, Zambia fntengwe@cbu.ac.zm |
|
| |
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 |
1474-7065 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Review; An overview of industrial wastewater treatment and analysis as means of preventing pollution of surface and underground water bodies – The case of Nkana Mine in Zambia; 2790318; United-Kingdom 23; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10301.pdf; Geobase |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 17497 |
Serial |
24 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Wolkersdorfer, C. |
|
| |
Title |
Mine water tracer tests as a basis for remediation strategies |
Type |
Journal Article |
| |
Year |
2005 |
Publication |
Chemie der Erde |
Abbreviated Journal |
|
|
| |
Volume |
65 |
Issue |
Suppl. 1 |
Pages |
65-74 |
|
| |
Keywords |
Mine water treatment Stratification Convection First flush Tracer tests Microspheres Reactive transport Groundwater problems and environmental effects Pollution and waste management non radioactive acid mine drainage remediation |
|
| |
Abstract |
Mining usually causes severe anthropogenic changes by which the ground- or surface water might be significantly polluted. One of the main problems in the mining industry are acid mine drainage, the drainage of heavy metals, and the prediction of mine water rebound after mine closure. Therefore, the knowledge about the hydraulic behaviour of the mine water within the flooded mine might significantly reduce the costs of mine closure and remediation. In the literature, the difficulties in evaluating the hydrodynamics of flooded mines are well described, but only few tracer tests in flooded mines have been published so far. Most tracer tests linked to mine water problems were related to either pollution of the aquifer or radioactive waste disposal and not the mine water itself. Applying the results of the test provides possibilities f or optimizing the outcome of the source-path-target methodology and therefore diminishes the costs of remediation strategies. Consequently, prior to planning of remediation strategies or numerical simulations, relatively cheap and reliable results for decision making can be obtained via a well conducted tracer test. < copyright > 2005 Elsevier GmbH. All rights reserved. |
|
| |
Address |
C. Wolkersdorfer, TU Bergakademie Freiberg, Lehrstuhl fur Hydrogeologie, 09596 Freiberg, Sachsen, Germany c.wolke@tu-freiberg.de |
|
| |
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 |
0009-2819 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Sep 19; Mine water tracer tests as a basis for remediation strategies; 2767887; Germany 34; Geobase |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 17499 |
Serial |
34 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Johnson, D.B.; Hallberg, K.B. |
|
| |
Title |
Acid mine drainage remediation options: a review |
Type |
Journal Article |
| |
Year |
2005 |
Publication |
Science of the Total Environment |
Abbreviated Journal |
|
|
| |
Volume |
338 |
Issue |
1-2 |
Pages |
3-14 |
|
| |
Keywords |
Wetlands and estuaries Pollution and waste management non radioactive geographical abstracts: physical geography hydrology (71 6 8) geological abstracts: environmental geology (72 14 2) biological method pollutant removal water treatment wastewater bioremediation constructed wetland acid mine drainage Cornwall England England United Kingdom Western Europe Europe Eurasia Eastern Hemisphere World Acid mine drainage Bioreactors Bioremediation Sulfidogenesis Wetlands Wheal Jane |
|
| |
Abstract |
Acid mine drainage (AMD) causes environmental pollution that affects many countries having historic or current mining industries. Preventing the formation or the migration of AMD from its source is generally considered to be the preferable option, although this is not feasible in many locations, and in such cases, it is necessary to collect, treat, and discharge mine water. There are various options available for remediating AMD, which may be divided into those that use either chemical or biological mechanisms to neutralise AMD and remove metals from solution. Both abiotic and biological systems include those that are classed as “active” (i.e., require continuous inputs of resources to sustain the process) or “passive” (i.e., require relatively little resource input once in operation). This review describes the current abiotic and bioremediative strategies that are currently used to mitigate AMD and compares the strengths and weaknesses of each. New and emerging technologies are also described. In addition, the factors that currently influence the selection of a remediation system, and how these criteria may change in the future, are discussed. |
|
| |
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 |
0048-9697 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Feb. 01; Acid mine drainage remediation options: a review; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10052.pdf; Science Direct |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 17464 |
Serial |
47 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Wingenfelder, U.; Hansen, C.; Furrer, G.; Schulin, R. |
|
| |
Title |
Removal of heavy metals from mine waters by natural zeolites |
Type |
Journal Article |
| |
Year |
2005 |
Publication |
Environ Sci Technol, ES & T |
Abbreviated Journal |
|
|
| |
Volume |
39 |
Issue |
12 |
Pages |
4606-4613 |
|
| |
Keywords |
Groundwater problems and environmental effects Pollution and waste management non radioactive remediation heavy metal mine drainage acid mine drainage; acidification; Central Europe; chemical composition; chemical fractionation; dissolved materials; Europe; framework silicates; geochemistry; grain size; heavy metals; hydrochemistry; ion exchange; lead; metals; mines; mining; mobilization; models; pH; pollutants; pollution; precipitation; remediation; samples; silicates; spectra; Switzerland; toxic materials; X-ray diffraction data; X-ray fluorescence spectra; zeolite group |
|
| |
Abstract |
|
|
| |
Address |
G. Furrer, Institute of Terrestrial Ecology, Swiss Federal Institute of Technology, Zurich, Grabenstrasse 3, CH-8952 Schlieren, Switzerland gerhard.furrer@env.ethz.ch |
|
| |
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 |
0013-936x |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Removal of heavy metals from mine waters by natural zeolites; 2006-086777; References: 42; illus. incl. 3 tables United States (USA); GeoRef; English |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 5382 |
Serial |
71 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Conca, J.L.; Wright, J. |
|
| |
Title |
An Apatite II permeable reactive barrier to remediate groundwater containing Zn, Pb and Cd |
Type |
Journal Article |
| |
Year |
2006 |
Publication |
Appl. Geochem. |
Abbreviated Journal |
|
|
| |
Volume |
21 |
Issue |
12 |
Pages |
2188-2200 |
|
| |
Keywords |
Pollution and waste management non radioactive Groundwater quality apatite groundwater remediation zinc lead cadmium acid mine drainage copper sulfate nitrate permeability water treatment precipitation chemistry |
|
| |
Abstract |
Phosphate-induced metal stabilization involving the reactive medium Apatite II(TM) [Ca10-xNax(PO4)6-x(CO3)x(OH)2], where x < 1, was used in a subsurface permeable reactive barrier (PRB) to treat acid mine drainage in a shallow alluvial groundwater containing elevated concentrations of Zn, Pb, Cd, Cu, SO4 and NO3. The groundwater is treated in situ before it enters the East Fork of Ninemile Creek, a tributary to the Coeur d'Alene River, Idaho. Microbially mediated SO4 reduction and the subsequent precipitation of sphalerite [ZnS] is the primary mechanism occurring for immobilization of Zn and Cd. Precipitation of pyromorphite [Pb10(PO4)6(OH,Cl)2] is the most likely mechanism for immobilization of Pb. Precipitation is occurring directly on the original Apatite II. The emplaced PRB has been operating successfully since January of 2001, and has reduced the concentrations of Cd and Pb to below detection (2 μg L-1), has reduced Zn to near background in this region (about 100 μg L-1), and has reduced SO4 by between 100 and 200 mg L-1 and NO3 to below detection (50 μg L-1). The PRB, filled with 90 tonnes of Apatite II, has removed about 4550 kg of Zn, 91 kg of Pb and 45 kg of Cd, but 90% of the immobilization is occurring in the first 20% of the barrier, wherein the reactive media now contain up to 25 wt% Zn. Field observations indicate that about 30% of the Apatite II material is spent (consumed). |
|
| |
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 |
0883-2927 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Dec.; An Apatite II permeable reactive barrier to remediate groundwater containing Zn, Pb and Cd; Science Direct |
Approved |
no |
|
| |
Call Number |
CBU @ c.wolke @ 17248 |
Serial |
44 |
|
| Permanent link to this record |
