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2024 / Conference / Tailings Management

Ultra paste and central thickened discharge: a paradigm shift in tailings management

Tailings management remains a top priority for the mining industry, driven by the pursuit of safety, environmental sustainability and operational efficiency. The accumulation and subsequent loss of water in tailings storage facilities (TSFs) poses a significant challenge, leading to the growing popularity of schemes that reduce water content in tailings.

A Roshdieh – ATC Williams, Melbourne, VIC, Australia

K Seddon – ATC Williams, Melbourne, VIC, Australia

B Pirouz – ATC Williams, Australia

S Javadi Rudd – ATC Williams, Australia

P Williams – Paul Williams Consulting, Australia

Paste and Thickened Tailings Conference 2024

2024 / Conference / Tailings Management

Central thickened discharge scheme for Ma’aden’s Mansourah-Massarah Gold Project

This paper provides a comprehensive case study detailing the inception, development, commissioning, and initial operations of a state-of-the-art tailings management facility in the Mansourah-Massarah Gold Project, situated within the arid terrain of the Kingdom of Saudi Arabia and operated by the Saudi Arabian mining company Ma’aden. With an annual average rainfall of a mere 80 mm and evaporation rates of 5,800 mm per annum, the mine relies on a water supply sourced from Taif town, a distance of 330 km.

A Roshdieh – ATC Williams, Melbourne, VIC, Australia

FC Soo – ATC Williams, Melbourne, VIC, Australia

K Zare Al Ahmadi – Ma’aden, Kingdom of Saudi Arabi

A Ibuni Hamdani – Ma’aden, Kingdom of Saudi Arabi

A Putra Ginting – Ma’aden, Kingdom of Saudi Arabia

R Gonzales Valdestamon – Ma’aden, Kingdom of Saudi Arabia

S Javadi Rudd – ATC Williams, Australia

M Sedeghipour – ATC Williams, Australia

Paste and Thickened Tailings Conference 2024

2024 / Ground Engineering / Journal / Research Paper

Effect of flexible membrane in triaxial test on the mechanical behaviour of rockfill material using Discrete Element Method

The investigation of rockfill materials poses challenges due to their large particle size, associated high cost, and long laboratory testing duration. As a result, empirical correlations based on historical experimental studies are commonly used to design and analyse rockfill structures.

Reza Asadi –ATC Williams, Melbourne, VIC, Australia

Mahdi M. Disfani – Department of Infrastructure Engineering, The University of Melbourne, VIC, Australia

Behrooz Ghahreman-Nejad – ATC Williams, Melbourne, VIC, Australia

Matteo O.Ciantia – School of Science and Engineering, University of Dundee, Dundee, Scotland, UK

Granular Matter

2024 / Ground Engineering / Journal / Research Paper

A New Modified Replacement Method for Discrete Element Modelling of Rockfill Material

Rockfill, a granular material with particle sizes usually in the range of 2 cm to 1 m, is a commonly used construction material in a range of civil engineering applications. Rockfill’s complex behaviour mainly stems from its inherently large particle size grading on one hand and its discrete and heterogeneous nature on the other hand.

Reza Asadi – ATC Williams, Australia

Mahdi M. Disfani – Department of Infrastructure Engineering, Faculty of Engineering and Information Technology, The University of Melbourne, Melbourne, Australia

Behrooz Ghahreman-Nejad – ATC Williams, Australia

Computers and Geotechnics

2019 / Technical Paper / Water Management

Evidence for Microbial Mediated NO3 − Cycling Within Floodplain Sediments During Groundwater Fluctuations

The capillary fringe is a subsurface terrestrial-aquatic interface that can be a significant hotspot for biogeochemical cycling of terrestrially derived organic matter and nutrients. However, pathways of nitrogen(N)cycling within this environment are poorly understood, and observations of temporal fluctuations in nitrate (NO3−) concentrations lack the necessary resolution to partition between biotic or abiotic mechanisms.

Nicholas J. Bouskill – Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, UnitedStates

Mark E. Conrad – Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, UnitedStates

Markus Bill – Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

Eoin L. Brodie – Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

Yiwei Cheng – Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

Chad Hobson – Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

Matthew Forbes – ATC Williams, Australia

Karen L. Casciotti – Department of Environmental Earth System Science, Stanford University, Stanford, CA, United States

Kenneth H. Williams – Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

Frontiers in Earth Science

2011 / Technical Paper / Water Management

A geochemical investigation of hydrologically derived threats to rare biota: the Drummond Nature Reserve, Western Australia

The Drummond Nature Reserve (DNR), a high-value conservation area 100km northeast of Perth, Western Australia, contains two rare freshwater claypans and a diverse range of rare and threatened vascular plants. Groundwater/surface-water interactions were investigated via isotopic (δ18OandδD) and major ion analysis.

Matthew Forbes ATC Williams, Australia

Ryan Vogwill – Department of Environment and Conservation WA

Hydrogeology Journal

2021 / Conference / Technical Paper / Water Management

Water Management and the Global Industry Standard on Tailings Management

In January 2019 the Brumadinho Tailings Storage Facility (TSF) failed, resulting in the deaths of 270 people. This was the second major fatal TSF failure in four years, which led to an industry-wide review of tailings management and the subsequent release of the Global Industry Standard on Tailings Management (the Standard) in August 2020.

Nicola Logan ATC Williams, Australia

Hydrology and Water Resources Symposium

2022 / Conference / Dams Engineering / Slurry & Mechanical Engineering / Tailings Management

Non-Newtonian Tailings Dam Break Analysis and Released Volume Estimation Using Site-Specific Parameters

A series of major tailings dam break events have been recorded across the world in recent years. A breach in the impounding structure of a Tailings Storage Facilities (TSF) can lead to catastrophic environmental, social and economic impacts and potentially result in the loss of human lives.

Zerui Lu ATC Williams, Australia

Yuqi Tan ATC Williams, Australia

Behnam Pirouz ATC Williams, Australia

Tailings 2022 Online Conference

2020 / Conference / Slurry & Mechanical Engineering / Tailings Management

Comparison of Linear and Central Distribution Systems for Thickened Tailings Stacking

One of the key parameters in successful implementation of thickened tailings schemes for tailings management is the achievable tailings beach slope. Study of geomorphology and hydrodynamics of tailings beaches has shown that the achievable beach slope is directly proportional to tailings solids concentration (i.e. rheology) and inversely proportional to discharge flowrate.

Behnam Pirouz ATC Williams, Australia

Sadegh Javadi ATC Williams, Australia

Keith Seddon ATC Williams, Australia

23rd International Conference on Paste Thickened and Filtered Tailings

2020 / Conference / Slurry & Mechanical Engineering / Tailings Management

Paste and Thickened Tailings Transportation: Design Aspects Overview

Tailings transport is an integrated element in any wet tailings storage facility (TSF). Tailings from the process plant are often thickened to a moderate or relatively high (but still pumpable) solids concentration, depending on several parameters mainly the TSF deposition requirements and strategies, process plant water security status and the dewatering technology utilised.

Sadegh Javadi ATC Williams, Australia

Behnam Pirouz ATC Williams, Australia

Paul Slatter Sheridan College, Perth, Australia

23rd International Conference on Paste, Thickened and Filtered Tailings

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