For over 20 years, the Mining Association of Canada (MAC) has led the way in responsible tailings management. Tailings management has been a significant focus of MAC's work, particularly through its Towards Sustainable Mining (TSM) program.. Tailings are a by-product of mining, consisting of the processed rock or soil left over from the separation …

 — Reuse and recycling of mine tailings in whatever form is key to tailings minimization, which in turn is an important foundation to a global sustainable mining industry. ... A value-added synthetic process utilizing mining wastes and industrial byproducts for wear-resistant glass ceramics. ACS Sustain. Chem. Eng., 2020 (8) …

 — The mining industry generates vast quantities of mine tailings on an annual basis. However, due to their limited economic value, a significant portion of these tailings are deposited close to mining sites, often underwater. The principal environmental apprehensions associated with mine tailings revolve around their elevated levels of …

 — Hydrogeology plays an important role in tailings storage facility (TSF) design. In this paper, we present hydrogeologic considerations for TSF design and operations and some fundamentals for site characterisation during the design phase that can help reduce the severity of groundwater-tailings interactions. Finally, we present examples of tailings …

CHAnGes in version 3.1 Version 3.1 is an update to the third edition of A Guide to the Management of Tailings Facilities (the Tailings Guide), released in November 2017, to reflect the second edition of MAC's Developing an Operation, Maintenance, and Surveillance Manual for Tailings and Water Management Facilities (the OMS Guide), …

 — Nutrient deficiency, especially bio-available nitrogen deficiency, often impedes the bioremediation efforts of mining generated tailings. Biological nitrogen fixation is a critical process necessary for the initial nitrogen buildup in tailings. Current knowledge regarding the diazotrophs that inhabi …

Dr. Hedayat is the recipient of the Department of Energy's highly prestigious Early Career Award from the Basic Energy Sciences. Dr. Hedayat's teaching and research interests focus on geomaterials, construction materials, reuse of mine tailings, tunnels and underground construction, and non-destructive evaluation methods. Dr.

 — The type of tailings dam a mining company builds is directly related to the safety of the structure. Engineers have found that tailings dams tend to be safest, i.e. most resistant to failure and collapse, when they are not built on top of or using previously-deposited tailings. However, the safest dams, like downstream dams, are more …

 — In a keynote address at the 2011 Tailings and Mine Waste Conference held in Vancouver, British Columbia, Andy Robertson described the trend of increasing ore production, decreasing grades, and increasing tailings production where "every 30 years, the volume of water and tailings produced by the industry increases tenfold" [].Robertson …

 — Ecological engineering of tailings has been advocated to change tailings' mineralogy, improve physicochemical properties, and accelerate soil formation (i.e. pedogenic processes), allowing the re-colonisation of microbial communities and pioneer plant species (Huang et al. 2012).These early settlers, in turn, act as powerful biological …

 — Mining is an important industry that provides products and services through infrastructure systems worldwide. However, the global development promotes the steady growth and accelerated demand for ...

 — Based on research carried out at 67 tailings dams in Spain: (1) tailings dams contain alternating sedimentary layers with contractive and dilative geomechanical behaviours; (2) tailings saturate quickly but drain more than 10 times slower due to the high-suction capacity of the porous sediments (2–300 MPa); and (3) over the long-term, a …

1. INTRODUCTION. rectly placing all tailings into watercourses. Over the past 100 years, the amount of tailings produced has continued to increase as global ore grades decline …

 — Mine Tailings Disposal: An Issue of Growing Concern. A rise in world population together with increased rates of economic growth in low and middle income countries over the last century has dramatically increased the demand for metals and minerals ().In addition, over the span of the twentieth century, the demand for metals …

 — The height of the tailings dam and the length of the dry beach in tailings impoundment design are related to the infiltration line, which is the lifeline directly related to the safety of the tailings dam. In the process of mining tailings, with the change of the dam height, the dry beach length is also changed, thus affecting the position of ...

 — Visualizing the Size of Mine Tailings. On January 25th, 2019, a 10-meter tall wave traveling 120 km/h, washed 10 million m 3 of mining waste from the Brumadinho tailings dam over the Brazilian countryside killing somewhere between 270 and 320 people.. This was a manmade disaster, made from mining the materials we use daily. Every …

 — Environmental pollutants' transport through tailing extraction process is a big challenge. ... the percent finer than 75 µm on the position of the steady state line. ... Mine tailings produced ...

Tailings Dredge. Dredging can be a very effective and economical means of extracting tailings from a storage facility. For decades, mines have been dealing with their waste by disposing of tailings in a pond. Today, the …

Deposition techniques. Tailings can be discharged using subaqueous (below water) or subaerial techniques (above the water line, on the ground or on the tailings beach) (DPI 2003). The choice between these …

 — 1. Introduction. Mine tailings are waste from the processing of mineral ores. They are a mixture of ground rocks and process effluents generated during processing of the ores, and their composition depends on the nature of …

 — The overall SULTAN project concept is presented in Fig. 1.Following a diversified and sustainable supply-chain approach, SULTAN develops novel methodologies to study the resource potential of Europe's most important tailing families (Cu–Zn, Zn-Pb, and Cu–Zn-Pb tailings, WP1) and explores eco-friendly mining chemicals that can be …

The engineering characteristics of tailings are in most instances influenced by the degree of thickening and the method of deposition. It is therefore essential that while investigating the properties of tailings that the physical characteristics and material parameters (e.g. beach slope angles, particle size segregation, water recovery) that can occur as a result of …

 — Mining is an important industry, accounting for 6.9% of global GDP. However, global development promotes accelerated demand, resulting in the accumulation of hazardous waste in land, sea, and air environments. It reached 7 billion tonnes of mine tailings generated yearly worldwide, and 19 billion solid tailings will be accumulated by …

 — The present work was planned to evaluate the phytoextraction of metal mine tailings, Sarcheshmeh copper mine, SE of Iran, by the endemic plant species Medicago sativa L. (Alfalfa).

Mine tailings contain high amounts of potentially ... The water table falls to an equilibrium position controlled by the rate of ... most ore processing plants use several chemicals to aid in the mineral extraction process. Therefore, some tailings contain process chemicals that are emitted into the aquatic environment via the process water or ...

 — Anglo American played an active role in the multi-stakeholder process of developing the GISTM, which covers standards and practices over the entire tailings facility lifecycle and sets a high bar for the mining industry to achieve strong social, environmental and technical outcomes.

 — Mining for minerals is environmentally disruptive (berger, 2016, Velasquez et al., 2020) and generates large amounts of byproduct waste materials, which are composed of ground rocks, small quantities of valuable minerals, chemicals, and processed water (Adiansyah et al., 2015, Kossoff et al., 2014).These fine suspended …

The properties of tailings are dependent on the ore body being mined, the grinding and processing circuits, the reagent properties and the thickening process prior to disposal. For mines with similar operating parameters the tailings properties can still vary as processing plants never operate identically to one another.

 — Tailing, in context to mining, is defined as the waste or non-economic by-product generated during mining activities, processing of minerals, and other materials that contain small amounts of residual valuable minerals, chemicals, water, and heavy metals (Adiansyah et al. 2015).Studies indicated that the process of mineral exploitation and …