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Curi, A.C.; Granda, W.J.V.; Lima, H.M.; Sousa, W.T. |
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Zeolites and their application in the decontamination of mine waste water |
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Journal Article |
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2006 |
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Informacion Tecnologica |
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17 |
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6 |
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111-118 |
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adsorption decontamination effluents industrial waste ion exchange metallurgical industries metallurgy mining mining industry porosity wastewater treatment zeolites zeolites decontamination mine waste water genesis porosity adsorption ionic exchange mineral metallurgical effluents mercury pollution artisan mining activities heavy metals removal metal mining effluents mercury vapors ovens fire amalgams Manufacturing and Production |
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Abstract |
This paper describes the genesis, structure and classification of natural zeolites, including their most relevant properties such as porosity, adsorption and ionic exchange. The use of natural zeolites in the treatment of effluents containing heavy metals is reviewed based on current literature. These uses are focused on mineral-metallurgical effluents and mercury pollution related to artisan mining activities. The study shows that natural zeolites are efficient in removal of heavy metals in metal mining effluents, can be produced and improved at a low cost, and can also be used to adsorb mercury vapors from ovens used to fire amalgams. |
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0716-8756 |
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Zeolites and their application in the decontamination of mine waste water; 9532002; Journal Paper; SilverPlatter; Ovid Technologies |
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CBU @ c.wolke @ 16784 |
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409 |
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Mataix Gonzalez, C.; Escribano Bombin, M. |
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Title |
Sistemas de control y tratamiento de drenajes acidos de minas. Control and treatment systems for acid mine drainage |
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Journal Article |
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Year |
1996 |
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Ingeopres |
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42 |
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15-18 |
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acid mine drainage; dredging; effects; inorganic acids; metal ores; mines; pollution; sewage; sulfuric acid; water pollution; water treatment 22, Environmental geology |
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1136-4785 |
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Sistemas de control y tratamiento de drenajes acidos de minas. Control and treatment systems for acid mine drainage; 1997-066186; References: 7; 4 plates Spain (ESP); GeoRef; Spanish |
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CBU @ c.wolke @ 6385 |
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306 |
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Kleinmann, R.L.P. |
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Title |
Acid Mine Water Treatment using Engineered Wetlands |
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Journal Article |
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1990 |
Publication |
Int. J. Mine Water |
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9 |
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1-4 |
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269-276 |
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wetlands AMD passive treatment pollution control water treatment abandoned mines biological treatment pH bacterial oxidation wetland sizing sphagnum |
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400 systems installed within 4 years During the last two decades, the United States mining industry has greatly increased the amount it spends on pollution control. The application of biotechnology to mine water can reduce the industry's water treatment costs (estimated at over a million dollars a day) and improve water quality in streams and rivers adversely affected by acidic mine water draining from abandoned mines. Biological treatment of mine waste water is typically conducted in a series of small excavated ponds that resemble, in a superficial way, a small marsh area. The ponds are engineered to first facilitate bacterial oxidation of iron; ideally, the water then flows through a composted organic substrate that supports a population of sulfate-reducing bacteria. The latter process raises the pH. During the past four years, over 400 wetland water treatment systems have been built on mined lands as a result of research by the U.S. Bureau of Mines. In general, mine operators find that the wetlands reduce chemical treatment costs enough to repay the cost of wetland construction in less than a year. Actual rates of iron removal at field sites have been used to develop empirical sizing criteria based on iron loading and pH. If the pH is 6 or above, the wetland area (in2) required is equivalent to the iron. load (grams/day) divided by 10. Theis requirement doubles at a pH of 4 to 5. At a pH below 4, the iron load (grams/day) should be divided by 2 to estimate the area required (in2). |
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0255-6960 |
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Acid Mine Water Treatment using Engineered Wetlands; 1; Fg; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17368 |
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328 |
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LaPointe, F.; Fytas, K.; McConchie, D. |
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Title |
Using permeable reactive barriers for the treatment of acid rock drainage |
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Journal Article |
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2005 |
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International journal of surface mining, reclamation and environment |
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19 |
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1 |
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57-65 |
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Pollution and waste management non radioactive Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) waste management remediation mining industry pollution control acid mine drainage reactive barrier aluminium industry effluents industrial waste mineral processing industry oxidation waste handling permeable reactive barriers acid rock drainage treatment acid mine drainage environmental problem Canadian mineral industry oxidation sulphide minerals mine waste mine tailings heavy metals acid remediation technology metallurgical residues aluminium extraction industry acid mine effluents Manufacturing and Production acid mine drainage Bauxsol Canada disposal barriers effluents experimental studies heavy metals instruments oxidation permeable reactive barriers pollutants pollution pyrite pyrrhotite remediation sulfides tailings waste disposal waste management |
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Acid mine drainage (AMD) is the most serious environmental problem facing the Canadian mineral industry today. It results from oxidation of sulphide minerals (e.g. pyrite or pyrrhotite) contained in mine waste or mine tailings and is characterized by acid effluents rich in heavy metals that are released into the environment. A new acid remediation technology is presented, by which metallurgical residues from the aluminium extraction industry are used to construct permeable reactive barriers (PRBs) to treat acid mine effluents. This technology is very promising for treating acid mine effluents in order to decrease their harmful environmental effects |
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1389-5265 |
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Using permeable reactive barriers for the treatment of acid rock drainage; 8467608; Journal Paper; SilverPlatter; Ovid Technologies |
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Call Number |
CBU @ c.wolke @ 16786 |
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12 |
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Author |
Lushnikova, O.Y. |
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Kompleksirovaniye metodov tamponazha i biolokatsii dlya zashchity podzemnykh vod ot zagryazneniya i istoshcheniya. Combined methods of grouting and biolocation for protection of ground water from pollution and depletion |
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1996 |
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Izvestiya Vysshikh Uchebnykh Zavedeniy. Gornyy Zhurnal |
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1996 |
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12 |
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49-52 |
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acid mine drainage; conservation; ecology; fluorimetry; geochemistry; ground water; grouting; hydrology; industrial waste; land use; leaking underground storage tanks; mines; monitoring; natural resources; pollutants; pollution; reclamation; soil treatment; soils; toxic materials; waste disposal; water quality; water regimes; water table 22, Environmental geology |
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0536-1028 |
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Kompleksirovaniye metodov tamponazha i biolokatsii dlya zashchity podzemnykh vod ot zagryazneniya i istoshcheniya. Combined methods of grouting and biolocation for protection of ground water from pollution and depletion; 1997-070630; Russian Federation (RUS); GeoRef; Russian |
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CBU @ c.wolke @ 6326 |
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312 |
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