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The BioSulphide Process to treat acid mine drainage and Anaconda tailings at Caribou Mine, New Brunswick |
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2002 |
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2002-3 |
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138 |
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acid mine drainage base metals bioremediation BioSulfide Process biosulfides Canada Caribou Mine copper Eastern Canada experimental studies heavy metals laboratory studies lead Maritime Provinces metal ores metals New Brunswick pollution recovery remediation sulfides tailings waste management water treatment zinc 22 Environmental geology 27A Economic geology, geology of ore deposits |
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Biomet Mining Corporation, R.B.C.C. |
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The BioSulphide Process to treat acid mine drainage and Anaconda tailings at Caribou Mine, New Brunswick; 2004-045115; GeoRef; English; 1702-2649 illus. |
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CBU @ c.wolke @ 16509 |
Serial |
495 |
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Author |
Herbert, R.B., Jr.; Benner, S.G.; Blowes, D.W. |
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Title |
Reactive barrier treatment of groundwater contaminated by acid mine drainage; sulphur accumulation and sulphide formation |
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Book Chapter |
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Year |
1998 |
Publication |
Groundwater Quality: Remediation and Protection |
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451-457 |
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acid mine drainage Canada chemical analysis contaminant plumes Eastern Canada ground water hydraulic conductivity hydrolysis Nickel Rim Mine Ontario pH pollution porosity pyrrhotite remediation sample preparation Sudbury Basin sulfides sulfur tailings water pollution 22, Environmental geology |
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Abstract |
A permeable reactive barrier was installed in August 1995 at the Nickel Rim Mine near Sudbury, Ontario, Canada, for the passive remediation of groundwater contaminated with acid mine drainage. The reactive component of the barrier consists of a mixture of municipal and leaf compost and wood chips: the organic material promotes bacterially-mediated sulphate reduction. Hydrogen sulphide, a product of sulphate reduction, may then complex with aqueous ferrous iron and precipitate as iron sulphide. This study presents the solid phase sulphur chemistry of the reactive wall after two years of operation, and discusses the formation and accumulation of iron sulphide minerals in the reactive material. The results from the solid-phase chemical analysis of core samples indicate that there is an accumulation of reduced inorganic sulphur in the reactive wall, with levels reaching 190 mu mol g (super -1) (dry weight) by July 1997. |
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IAHS-AISH Publication, vol.250 |
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Herbert, M.; Kovar, K. |
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1901502554 |
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Reactive barrier treatment of groundwater contaminated by acid mine drainage; sulphur accumulation and sulphide formation; GeoRef; English; 1999-065115; GQ 98 conference, Tubingen, Federal Republic of Germany, Sept. 21-24, 1998 References: 15; illus. |
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Call Number |
CBU @ c.wolke @ 16621 |
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65 |
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Benzaazoua, M.; Bussiere, B. |
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Title |
Desulphurization of tailings with low neutralizing potential; kinetic study and flotation modeling |
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Book Chapter |
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1999 |
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Sudbury '99; Mining and the environment II; conference proceedings |
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acid mine drainage chemical properties chemical reactions environmental analysis environmental effects experimental studies flotation geochemistry kinetics laboratory studies mathematical models neutralization pH pollution sulfur tailings 22 Environmental geology 02A General geochemistry |
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Environmental desulphurization is an attractive alternative for acid generating tailings management as demonstrated during the last few years. In fact, such process placed at the end of the primary treatment circuit allows to reduce greatly the amount of problematic tailings by concentrating the sulphidic fraction. Moreover, the desulphurized tailings (non-acid generating) have the geotechnical and environmental properties for being used as fine material in a cover with capillary barrier effects. To produce desulphurized tailings, non selective froth flotation is the most adapted method as shown in many previous works. Desulphurization level is fixed by tailings sulphur content (or sulphide content) and neutralization potential NP. The final residue should have enough NP to compensate for his acid generating potential AP. In this paper, the authors present the results of laboratory tests conducted in Denver cells for studying the sulphide flotation kinetics of four mine tailings which are characterized by a weak neutralization potential (under 37 kg CaCO (sub 3) /t). Tailings 1, 2, 3 and 4 contain respectively 5.27, 10, 4.25 and 16.9 sulphur Wt. %. Tailings 1 and 2 are cyanide free and are well floated at pH around 11 by using amyl xanthate as collector. Collector dosage was optimized for these tailings and the results show that Tailing 2 need more collector. However, Tailings 3 and 4, which come from a gold cyanidation process, could not provide good sulphide recovery with xanthate collector because of the pyrite depression. To overcome this problem, amine acetate was used successfully but induces important entrainment. The consumption of this collector was also optimized. The results of kinetic tests and collector dosage were combined and modeled to establish relationships which allow to estimate the desulphurization performances. |
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Goldsack, D.; Belzile, N.; Yearwood, P.; Hall, G. |
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0886670470 |
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Desulphurization of tailings with low neutralizing potential; kinetic study and flotation modeling; GeoRef; English; 2002-060841; Sudbury '99; Mining and the environment II--Sudbury '99; L'exploitation miniere et l'environnement, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 26; illus. incl. 5 tables |
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CBU @ c.wolke @ 16572 |
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452 |
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Author |
Evangelou, V.P. |
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Potential microencapsulation of pyrite by artificial inducement of FePO (sub 4) coatings |
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Book Chapter |
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1994 |
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Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06B-94 |
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96-103 |
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Keywords |
acid mine drainage chemical reactions leaching oxidation pollutants pollution pyrite remediation sulfides tailings theoretical studies waste disposal weathering rinds 22, Environmental geology |
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Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 2 of 4; Mine drainage |
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Potential microencapsulation of pyrite by artificial inducement of FePO (sub 4) coatings; GeoRef; English; 2007-045209; International land reclamation and mine drainage conference; International conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 11; illus. |
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Call Number |
CBU @ c.wolke @ 16711 |
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386 |
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Author |
Aube, B.C.; Zinck, J.M. |
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Title |
Comparison of AMD treatment processes and their impact on sludge characteristics |
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1999 |
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acid mine drainage cost decontamination density discharge geochemistry hydrochemistry leaching lime metals mine dewatering neutralization pH pollution remediation sludge stability tailings toxicity viscosity waste disposal water treatment 22, Environmental geology |
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Lime neutralisation for the treatment of acid mine drainage is one of the oldest water pollution control techniques practised by the mineral industry. Several advances have been made in the process in the last thirty years, particularly with respect to discharge concentrations and sludge density. However, the impact of different treatment processes on metal leachability and sludge handling properties has not been investigated. A study of treatment sludges sampled from various water treatment plants has shown that substantial differences can be related to the treatment process and raw water composition. This study suggests that sludge densities, excess alkalinity, long-term compaction properties, metal leachability, crystallinity and cost efficiency can be affected by the neutralisation process and specific process parameters. The study also showed that the sludge density and dewatering ability is not positively correlated with particle size as previously suggested in numerous studies. The treatment process comparisons include sludge samples from basic lime treatment, the conventional High Density Sludge (HDS) Process, and the Geco HDS Process. |
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Sudbury |
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Mining and the Environment II |
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2002-060865; Sudbury '99; Mining and the environment II--Sudbury '99; L'exploitation miniere et l'environnement, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 10; illus. incl. 6 tables; GeoRef; English |
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Call Number |
CBU @ c.wolke @ 16574 |
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473 |
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