waste rock characteristics

Study on Creep Characteristics of Cemented Waste Rock ...

Study on Creep Characteristics of Cemented Waste Rock Backfills The Open Civil Engineering Journal, 2015, 9: 957-961 Changhong Li, Qiantian Ma, Guoliang Chen, Hai Shao

[TECHNICAL NOTES] Waste rock characteristics at tropical ...

Having investigated the geochemical characteristics of the waste rock at the surface layer (0 - 200 cm depth) of Pit J (2 years-old) and Sangatta North (10 years-old) dumping areas, the study ...

ENVIRONMENTAL GEOCHEMISTRY INTERNATIONAL PTY …

Elemental Characteristics of Waste Rock ..... 11! 5.1!Elemental Composition of Solids ... Environmental Geochemistry International Pty Ltd (EGi) were commissioned by Exco Resources Limited (Exco) to provide an assessment of the geochemistry of waste rock that will be produced at …

Sedimentary Rocks | Pictures, Characteristics, Textures, Types

Breccia is a clastic sedimentary rock that is composed of large (over two-millimeter diameter) angular fragments. The spaces between the large fragments can be filled with a matrix of smaller particles or a mineral cement which binds the rock together.

Metal Mine Rock and Waste Characterization Tools: An …

METAL MINE ROCK AND WASTE CHARACTERIZATION TOOLS: AN OVERVIEW Posted on the Acid Drainage Technology Initiative - Metal Mining Sector web page at

Questa baseline and pre-mining ground-water quality ...

The goal of this study is to compare and contrast the leachability of metals and the acidity from individual mine waste-rock piles and natural erosional scars in the study area near Questa, New Mexico. Surficial multi-increment (composite) samples less than 2 millimeters in diameter from five waste-rock piles, nine erosional-scar areas, a less-altered site, and a tailings slurry-pipe sample ...

Acid mine drainage - Wikipedia

Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines.. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks ...

solid waste characteristics and management in ...

A number of socioeconomic variables may affect the quantity of solid waste generated each day by a . These include religion, family size, family employment, age, …

Geochemical characteristics of waste rocks from the akara ...

Moreover, apart from porphyritic andesite and andesite rocks, Cu exceeds the standard background concen- Based on geochemical characteristics, all types of waste rock trations. On the other hand, Pb has high contents in silicified show a good inverse relationship of TiO2, Fe2 O3, Al2 O3 and tuff and silicified lapilli tuff.

Waste rock and tailings – Waihi Gold

Waste rock and tailings. The mining process generates two byproducts: ... (PAF) rock. Waste rock without the potential to form acid drainage is referred to as non acid forming (NAF) waste rock. Special design and operational procedures are used to control acid drainage generation. ... the physical characteristics of the tailings vary laterally ...

Metal Mine Rock and Waste Characterization Tools: An Overview

METAL MINE ROCK AND WASTE CHARACTERIZATION TOOLS: AN OVERVIEW Posted on the Acid Drainage Technology Initiative - Metal Mining Sector web page at

Geotechnical and rheological characteristics of waste rock ...

Waste rock materials were collected from a pyrophyllite mine deposit in the mountainous region of Korea, and a sieve analysis was performed to determine the grain size distribution. The yield stress in the debris flow modeling was determined using fall cone and rheometric tests.

The Diavik Waste Rock Project: Particle size distribution ...

Three test-scale waste rock piles were analyzed for sulfur content and particle size distribution. • Sulfur content ranged from an average of 0.035 wt.% S to 0.082 wt.% S.. Higher sulfur waste rock had a higher proportion of fine-grained particles.

Characteristics of the Disturbed Rock Zone in salt at the ...

During the waste disposal (operational) period, rock mechanics research continues in the WIPP underground, in the laboratory, and in model development. Rock mechanics research played a fundamental role in regulatory compliance certification by the EPA and opening of WIPP, a matter of national and international interest.

Assessment of Waste Rock Weathering Characteristics at The

ASSESSMENT OF WASTE ROCK WEATHERING CHARACTERISTICS. AT THE ANTAMINA MINE BASED ON FIELD CELLS EXPERIMENT by CELEDONIO ARANDA CLEMENTE B.A.Sc. Universidad Nacional Santiago Antúnez de Mayolo, 2000

Questa Baseline and Pre-Mining Ground-Water Quality ...

Leaching Characteristics of Composited Materials from Mine Waste-Rock Piles and Naturally Altered Areas near Questa, New Mexico. Cover: Photograph of the upper bench of the Sugar Shack South waste-rock pile at the Questa Mine, New Mexico. Photograph taken by Paul Briggs.

Tailings.info What are tailings? - Their nature and production

The addition of reagents used in mineral processing may also change the chemical characteristics of the processed minerals and therefore the properties of the tailings and waste rock (EC 2004). The processing of hard rock sulphidic bearing ores is just one example of accelerated weathering.

Ore - Wikipedia

An ore is an occurrence of rock or sediment that contains sufficient minerals with economically important elements, typically metals, that can be economically extracted from the deposit. The ores are extracted from the earth through mining ; they are then refined (often via smelting ) to extract the valuable element, or elements.

Standard Test Methods for Analysis of Metal Bearing Ores ...

1.1 These test methods cover the determination of total carbon and sulfur and acid-base characteristics in metal bearing ores and related materials such as leach residues, tailings, and waste rock within the following ranges:

Predicting the soil-water characteristics of mine soils

ABSTRACT: The soil-water characteristic curve for unsaturated mine soils (i.e., waste rock, and tailing) is a key parameter for predicting net infiltration in the design of soil caps, potential seepage

User Guidelines for Waste and Byproduct Materials in ...

For the most part, lead and zinc ores are found in limestone and dolomite rock, so the waste rock from processing these ores will have characteristics much like other carbonate aggregates. The specific gravity or unit weight of most sources of waste rock will be in approximately the same range as the specific gravity or unit weight of ...

Mineralogical and geochemical characteristics of tailings ...

Mineralogical and geochemical characteristics of tailings and waste rocks from a gold mine in northeastern Thailand Thitiphan Assawincharoenkij 1, Christoph …

solid waste characteristics and management in ...

Solid waste management (SWM) is a multidimensional challenge faced by urban authorities, especially in developing countries like Bangladesh. We investigated per capita waste generation by residents, its composition, and the s' attitudes towards waste management at Rahman Nagar Residential Area, Chittagong, Bangladesh.

Geochemical Characteristics of Waste Rocks ... - SpringerLink

Abstract. The geochemistry of waste rocks collected from overburden at the C–H pit, Akara gold mine, Pichit Province, Thailand, was investigated and aimed to estimate the total heavy metal contents in these rocks and to evaluate their potential for leaching.

Geochemical characteristics of a sulphidic waste rock and ...

The geochemical behaviour of the sulphidic waste rock produced from the Stratoni mines, Greece, was investigated in the present study. An extensive laboratory testwork, including the execution of ...

Management of Tailings and Waste-Rock in Mining Activities

Waste-Rock in Mining Activities January 2009 . ... processing influences the characteristics and behaviour of the tailings) focuses on tailings management, e.g. in ponds/dams, heaps or as backfill ... Management of tailings and waste-rock in mining iii Some parts of the mining industry, such as metal and coal mining within Europe, operate under ...

Fourth International Conference on Acid Rock Drainage ...

Acid Rock Drainage from the Samatosum Waste Dump, British Columbia, Canada M. Ghomshei, A. Holmes, E. Denholm, R. Lawrence, T. Carriou 351 Vertical Transport in Brenda Mines Pit Lake

Geochemical characteristics of a sulphidic waste rock and ...

Geochemical characteristics of a sulphidic waste rock and implications for environmental rehabilitation E. Mylona 1,*, A. Xenidis1, G. Gaidajis2, K. Adam3 1Laboratory of Metallurgy, School of Mining and Metallurgical Engineering, National Technical University of Athens, 15780 Zografos, Athens, Greece

Study on Creep Characteristics of Cemented Waste Rock ...

to simulate the creep characteristics of cemented waste rock backfills, PFC was carried out. The results show that: rocks inside the models will have displacement under load. The expansion is caused by large lateral displacement of the rocks.

Uranium Mining and Milling Wastes: An Introduction

Waste rock was often processed into gravel or cement and used for road and railroad construction. VEB Hartsteinwerke Oelsnitz in Saxony has processed 200,000 tonnes of material per year into gravel containing 50 g/t uranium.

ANNEXE S2QC-36 Mémo EcoMetrix - Metal Leaching ...

16 December 2015 Sandra Pouliot Page 2 of 10 Reference: Metal Leaching Characteristics of Waste Rock and Tailings from Mine Canadian Malartic on 7 samples consisting of 2 ores, 2 waste rock …

Office of Wastewater Management - Hardrock Mining Wastes

Waste rock includes granular, broken rock that ranges from fine sand to large boulders, depending on the nature of the formation and mining methods employed. Characteristics The geochemistry of waste rock varies widely from mine to mine and may vary significantly at individual mines over time as different lithological units are exposed.