pyrite tailing sampling

galena flotation tailing - ooglaseren-info.nl

galena flotation tailing - shoppingemporiumcoza. galena flotation tailing Oreprep F-521 Frother For Copper-molybdenum Ores Flotation Flotation Processing Line for Gold Zinc Copper Galena: Company Information pyrite and minor chalcopyrite, molybdenum, copper flotation, tailings flotation of

Bacterial and chemical oxidation of pyritic mine tailings ...

Samples of tailings were collected up to a depth of 60 cm in mid-August 1998 at 4 sites, for which the metabolic activity of sulfur- and iron-oxidizing leaching bacteria besides the chemical pyrite oxidation activity were measured on 39 tailings samples and 7 samples from a natural pyritic site by calorimetry.

MINERALOGICAL AND GEOCHEMICAL CHARACTERIZATION …

mineral assemblage in the tailings is dominated by pyrite, with lesser amounts of chalcopyrite, bornite, enargite, molybdenite, digenite, chalcocite, and covellite. At CT1 (actual spitting point during sampling, October 2002) and CT2 which represents freshly deposited tailings, the pyrite grains are fresh and do not show signs of alteration (Fig.

Geochemical Characteristics of Oil Sand Tailings and ...

Geochemical Characteristics of Oil Sand Tailings and Bitumen Upgrading By-Products, Alberta, Canada Bronwen Forsyth1, Stephen Day1 and Oladipo Omotoso2 1. SRK Consulting, Canada 2. Suncor Energy Inc, Canada ABSTRACT Few studies have characterized the metal leaching and acid rock drainage (ML/ARD) potential of

Pyrite Tailings Recovery by Flotation

Pyrite has long been used as a source of sulphur, and its recovery as a by-product from the flotation of certain base metal ores is a well established practice. Large tonnages of mill tailings which have accumulated as a result of various milling operations frequently contain significant amounts of pyrite. In many instances these tailings can be treated to yield pyrite concentrates that are a ...

Recovery of gold from the Mouteh Gold Mine T tailings dam

residue tailings from the Mouteh Gold Mine, a mixture of sulphide and non sulphide minerals, was investigated. The test work included flotation, roasting and leaching, for the effective recovery of gold from the Mouteh tailings. Representative samples from the Mouteh tailings dam were obtained. The objectives of the sampling were to quantify ...

(PDF) Evaluation of heavy metal bio-availability from ...

Evaluation of heavy metal bio-availability from Almagrera pyrite-rich tailings dam (Iberian Pyrite Belt, SW Spain) based on a sequential extraction procedure. Journal of Geochemical Exploration, 2009 ... (2009) 87–94 89 sampling network was designed in several profiles parallel and per- ray fluorescence spectrum (XRF) using Rh target and 4 ...

Quantitative Microbial Community Analysis of Three ...

The TOC was below 0.8%. The geochemistry and mineralogy of the tailing dump and the sampling procedure have been described by others in detail (8, 9, 25–27, 30, 39, 41). (iii) Uncovered pyrite- and arsenopyrite-containing tailing dump, Freiberg, Germany. The tailing dump in Freiberg, Germany, is located in a temperate zone

Metal Leaching/Acid Rock Drainage Characterization DRAFT ...

Metal Leaching/Acid Rock Drainage Characterization DRAFT Sampling and Analysis Plan Prepared for Northern Dynasty Mines Inc. 3201 C Street, Suite 604 Anchorage, AK 99503 Prepared by June 2005 . Pebble Project Metal Leaching/Acid Rock Drainage Characterization DRAFT Sampling and Analysis Plan ... scavenger tailings. This sampling and analysis ...

Pyrite behaviour in a tailings pond - ScienceDirect

This paper deals with the behaviour in a tailings pond of the residues produced during the flotation of a complex sulphide ore. The composition of the tailing was essentially pyrite (63.4%) with minor amounts of Cu, Pb and Zn sulphides (1.4, 0.5 and 0.8, respectively).

pyrite oxidation in the sarcheshmeh copper mine tailings ...

The Sarcheshmeh copper mine tailings are rich in pyrite. Oxidation of pyrite-containing tails causes the well-known problem of acid mine drainage. Depending on the rate of pyrite oxidation, availability of moisture and oxygen within the tailings, the pH of the drainage is often very low. Depth sampling …

Geochemical Characterization of Spilled Tailings from the ...

Geochemical Characterization of Spilled Tailings from the Mount Polley Mine Dam Failure Chris Kennedy, SRK ... and pyrite (FeS 2) • The main carbonate is calcite (CaCO 3), malachite (Cu 2CO ... Field Sampling Grey tailings Magnetite sands 17. 4. Results – Laboratory Analysis 18 0 5 10 15 20 25 30 35 40 45 01234 5678 9 10 NP

Technical Document: Acid Mine Drainage Prediction

Acid Mine Drainage Prediction compares acid rock drainage factors of waste rock piles and tailings impoundments. In examining this table, it is important to note that diffusion of oxygen into water is slow and, therefore, oxidation of iron sulfide is inhibited until the water level drops, which can occur periodically or seasonally in some cases.

Release of Heavy Metals from the Pyrite Tailings of ...

Release of Heavy Metals from the Pyrite Tailings of ... [31,32], and they were mainly distributed in the recent tailings dumping area. At each sampling point, approximately 2.5 kg of pyrite tailings were collected from the surface 10 cm of the tailings reservoir. The samples of all 20 sampling points were mixed, and the mixed tailings were

Minerals | Free Full-Text | Spatial Mapping of Acidity and ...

The oxidized tailings were characterized by low sulfide (mainly as pyrite) and carbonate (mainly as siderite/ankerite) contents compared to unweathered tailings. Acidic zones, identified based on paste pH, were located in the eastern portion of the southern zone and at the northern tip of the northern zone.

Tailings - Wikipedia

Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore. Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.

Quantitative Microbial Community Analysis of Three ...

The tailing dump consists of waste from Zn and Cu sulfidic ore processing, covers an area of 0.1 km 2, and is 6 to 7 m high. In the unoxidized tailings, the content of sulfide minerals ranges from 10 to 30% and is completely dominated by pyrite, while in the oxidized tailings …

HEAVY METAL ANALYSIS IN WASTE WATER SAMPLES …

– Heavy metal analysis in waste water samples from Valea ... The mineralization is formed by chalcopyrite, pyrite, magnetite, bornite or molibdenite. Due to the exploitation, the Roúia Poieni landscape area has ... Sampling points in Valea ùesei tailing pond . 541 Fig. 2.

Application of remediation techniques for immobilization ...

Application of remediation techniques for immobilization of metals in soils contaminated by a pyrite tailing spill in Spain J. Aguilar1,*, P. Bouza2, C. Dorronsoro1, E. Ferna´ndez1, J. Ferna´ndez1, I. Garcı´a1, F. Martı´n1 & M. Simo´n1 Abstract.

Proposal of precipitation–dissolution models in a channel ...

Abstract. Two sampling points were defined in the Meca River, which receives leachates from the tailings of the Tharsis Mining Complex in the Iberian Pyrite Belt, SW Spain: 'MECA A', which is located at the base of the tailings, and 'MECA B', located downstream at a distance of 14,165 m. 24 h of sampling was scheduled for a date in which precipitation intensity would be very high, so ...

Geoenvironmental Characterization of Sulfide Mine Tailings ...

Where a rotary drilling machine is not possible to place, samples were collected with an Eijkelkamp soil core manual sampler. Sampling was sequential with a centimeter vertical constant spacing and lower in depth than boreholes. This is the case of tailings studied at the Iberian Pyrite Belt district . In many occasions, soils surrounding mine ...

Mine Tailings Sampling Technique - Laboratory Testing ...

Your suggestion is highly relevant. Tailings are variable by essence with mining and processing. For instance, early Pb-Zn tailings are generally pyrite-poor as pyrite was valorized for sulphur. Since a few decades, pyrite is dumped in tailings, changing radically their composition (and AMD behavior). We should talk of tailings stratigraphy here.

Release of Heavy Metals from the Pyrite Tailings of ...

The area of the tailing reservoir is about 1 km 2. 20 sampling points were selected in the tailing reservoir following a snake-shape pattern [31,32], and they were mainly distributed in the recent tailings dumping area. At each sampling point, approximately 2.5 kg of pyrite tailings were collected from the surface 10 cm of the tailings reservoir.

Mineralogical characterization related to physico-chemical ...

ORIGINAL ARTICLE Mineralogical characterization related to physico-chemical conditions in the pyrite-rich tailings in Guryong Mine, Korea Yonghee MOON1, Yong-Seon ZHANG1, Yeon-Kyu SONN1, Byung-Keun HYUN1, Yungoo SONG2 and Hi-Soo MOON2 1National Institute of Agricultural Science and Technology, Su-won 441-70, Korea, 2Department of Earth System Sciences, Yonsei

Distribution and Transition of Heavy Metals in Mine ...

2.1 Description of sampling sites The sampling site is a tailing dump of an anonymous mine in Japan. The ore minerals are mainly pyrite, sphalerite, chal-copyrite and galena, accessory Mn-minerals, the gangue min-erals quartz and kaolin. The mine drainage, influenced by these mine tailings, is weakly acidic (pH 4.82) and its com-

Significance of Microbial Communities and Interactions in ...

Pyritic mine tailings (mineral waste generated by metal mining) pose significant risk to the environment as point sources of acidic, metal-rich effluents (acid mine drainage [AMD]). While the accelerated oxidative dissolution of pyrite and other sulfide minerals in tailings by acidophilic chemolithotrophic prokaryotes has been widely reported, other acidophiles (heterotrophic bacteria that ...

Pyrite oxidation in the Sarcheshmeh copper mine tailings ...

PDF | On Sep 4, 2011, Shafaei Tonkaboni S.Z. and others published Pyrite oxidation in the Sarcheshmeh copper mine tailings dam, Kerman, Iran

(PDF) Mineralogical and geochemical studies on pyrite and ...

These tailings are rich in sulphide minerals particularly pyrite and chalcopyrite. Oxidation of these minerals produces the well-known problem of acid mine drainage. In this research, a depth sampling was conducted over the tailings materials. Two vertical trenches (A and B) were excavated in tailings from the surface to a depth of 4.2 m.

(PDF) Recovery of gold from the Mouteh Gold Mine tailings dam

PDF | It is estimated that the tailings dam of the Mouteh Gold Mine, in Iran, contains more than 770 kg of gold. Microscopic analysis reveals that sulphide minerals and active carbon are the main ...

Mobility of Arsenic and Heavy Metals in a Sandy-Loam ...

To study the evolution in time of the oxidation processes of pyrite tailings covering the soils, a systematic sampling was made three years after the spill (Mart´ın et al., 2008). The soil was covered by a layer of tailing (2–5 cm thick) and showed a strong morphological differentiation in depth (Fig.1). Just