1. Introduction. Canada has the largest oil sands deposits in the world, and bitumen is commonly recovered by oil sands industry using the so-called Clark Hot Water Extraction Process, in which large amounts of hot, caustic water is used to separate bitumen from sands, resulting in the accumulation of fluid wastes referred to as oil sands …

Due to the large amount of tailings discharged from mining, tailing dams were built to deposit this kind of solid waste which is a common treatment (Kossoff et al. 2014).The accumulation of tailings in the dams not only occupies a large area of land including farmland and woodland (Yin et al. 2011) but also destroys the ecological …

Tailing, in context to mining, is defined as the waste or non-economic by-product generated during mining activities, processing of minerals, and other …

In fact, the general scheme for the management of tailings from ore flotation includes settling, size-based separation or classification using cyclones and storage in ponds in order to enable solid particles to settle with the supernatant wastewater sent to a stream after treatment if necessary or recycled in the process (Department of Industry ...

ATA ® provides a safe and low-cost mine tailings treatment process which rapidly separates water and solids to produce stackable tailings and recycled water. The technology uses smart chemistry to rapidly agglomerate the solids in ore slurries. The resulting materials can be compressed and stacked, with the extracted water being …

This process is typically referred to as Froth Treatment. Froth Treatment can be broken down into 4 basic steps: Add an appropriate amount of light hydrocarbon to the bitumen froth and mix …

Froth treatment tailings (FTT) are a specific type of tailings waste stream from the bitumen froth treatment process that contains bioavailable diluent: either naphtha or paraffins. Tailings ponds that receive FTT are associated with the highest levels of biogenic gas production, as diverse microbial communities biodegrade the residual diluent.

Abstract. Phosphorus ore flotation tailings (POFTs) are an industrial solid waste generated in the process of phosphate mining, which contains a large number of …

Study of factors in the pre-treatment process of the gold tailings3.2.1. Effect of ammonium bifluoride concentration on gold extraction. During the tailings processing, ammonium bifluoride acted as a pre-treatment reagent, exposing gangue mineral wrapped gold in the tailings.

This manuscript emphasizes use of basic treatment techniques and bioremediation mechanisms for dealing with pollutants from MT that target the …

Focusing on system performance, compliance with process and environmental requirements and long-term cost-effectiveness, we are able to meet the most demanding standards of reliability, safety and quality. Tailings pond water treatment for reuse or discharge; Gold / Silver cyanide solution treatment; Merrill-Crowe clarification filters

Treatment of fluid fine tailings is a major issue in oil sands operation. There are two main goals in the treatment-1) minimize the volume of containment required for FFT by dewatering and 2 ...

The majority of the proposed tailings treatment processes rely on technologies that have already been tested and possibly implemented with richer and less complex ores. Thus, these processes can be considered technically feasible for tailings treatment, especially after tailoring the full plant layout to allow more complex elemental …

The comprehensive prevention and treatment of seepage failure of the tailings dam need to be combined with the specific engineering situation. The most effective way to prevent and treat the seepage failure of the tailings dam is to add an appropriate amount of the ORF to the tailings discharge process.

In other gold ore treatment metallurgical plants, counter-current decantation (CCD) thickener circuits may be considered to recover the solutions; however, the restrictions imposed on conventional wet tailings storage facilities or those with a lot of supernatant process water favor the use of tailings filtering equipment, where the cake ...

Froth treatment tailings (FTT) are a specific type of tailings waste stream from the bitumen froth treatment process that contains bioavailable diluent: either naphtha or paraffins. Tailings ponds …

Tailings are a by-product of mining. After ore containing an economically-recoverable commodity is mined from the earth, that commodity is extracted in a processing plant or mill. After the commodity of value is extracted from the ore material, the resultant waste stream is termed "tailings". Typically, mill tailings range from sand to silt ...

@article{osti_5599446, title = {Advanced membrane filtration process for treatment of uranium mill tailings wastewater}, author = {Van Tran, T and Shorr, J}, abstractNote = {Twenty-four inactive hazardous uranium mill tailings sites in the US were designated for remedial action to conform to the Uranium Mill Tailings Radiation Control Act of 1978.

Solution-treatment processes provide a system for limiting the environmental impact from acidic seepage. Treatment of uranium tailings solutions from evaporation ponds, underdrains, and surface seeps could aid in decommissioning active sites or be used as an emergency measure to avert possible uncontrolled discharges.

In summary, harmless treatment significantly affects the treatment of cyanide tailings, but some problems have yet to be solved during treatment process to achieve industrialization. Harmless treatment processes mainly include two types: the direct oxidation of slurry and the oxidation of cyanide-containing wastewater after slag …

Recycling and reuse of mine tailings through innovative approaches are already practiced in diverse sectors including mining (e.g., cemented paste backfill), …

Some reviews include the alkali activation process involving different types of by-products and also tailings (Zhang 2013; Mehta and Siddique 2016; Kinnunen et al. 2018); others focus more on tailings recycling and then include the alkali activation as a treatment process (Kinnunen et al. 2018; Park et al. 2019); others bring a discussion …

Tailings reclamation technologies. Reclamation is the process of returning lands affected by surface mining activities to a beneficial end use. Tailings management is an important component of oil sands mining operations. Through research, new technologies and collaboration, we are reducing the size and need of tailings ponds and accelerating ...

Permanent aquatic storage structure (PASS) is a Suncor-led research and technology development project focused on an accelerated dewatering process and treatment of fluid fine tailings creating a PASS lake …

EIPP is a green and high-performance S/S method for heavy metal tailings treatment. • The treated tailings reach strength of 2.7 MPa with low pollution risk. • S/S efficiency is determined by tailings density and mass of reactant and enzyme. • Formed Pb 9 (PO 4) 6 and newberyite lead to Pb immobilization and strength improvement.

Highlights. •. Generation of biogenic gases can negatively affect tailings strategic closure plan. •. Biostimulation & bioaugmentation methods can improve FT …

The gold mining process involves crushing the ore into sand and dust to liberate and recover the gold. What's leftover is called tailings. Ballarat Gold Mine uses its robust management and monitoring processes to make sure its produced gold tailings comply with all license conditions and permits necessary for the safe storage of tailings.

Biological treatment processes are used to treat decant solution, or in some cases process solutions, but are normally not suitable as a direct tailings-treatment process. There are several possible configurations of biological treatment processes, with the general divisions being aerobic versus anaerobic and attached growth versus …

The Global Tailings Review convened by the United Nations Environment Programme (UNEP), the Principles for Responsible Investment (PRI) and the International Council on Mining and Metals (ICMM) launched the Global Industry Standard on Tailings Management. The Standard was developed by a multi-disciplinary Expert Panel, with …

Encouraging the development and use of new technologies for solidifying and treating UMTs will also help to improve the efficiency and effectiveness of the solidification process. Backfilling disposal method. Tailings backfilling disposal is a long-term underground treatment method that isolates tailings from the surrounding environment.