VETIVER GRASS TECHNOLOGY FOR REHABILITATION OF …

TREATMENT OF CONTAMINATED SITES Containment Immobilisation by Amendment ... The tailings was saline, highly sodic, high levels of soluble S, Mg.Ca, Cu, Zn and Fe but extremely low in N and P. ... Pijiguaos, Venezuela (pH 4-5; Rainfall 2 400-2 900mm/y) Dam wall Fill slope Cut slope Drainage channel . SUMMARY

An extensive review on restoration technologies for mining tailings

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 landscape, forming a completely …

Tailings management

of tailings treatment, with technology that gives you high separation rates, dry solids and clean water for reuse. We use high-grade materials such as tung-sten carbide, stainless steel and super duplex, and offer solutions for both high and low pH values. Due to their specially

Bioremediation techniques for the treatment of mine tailings…

Mine tailings (MTs) are the materials dumped on a mining site after mineral extraction, containing scattered traces of residual minerals, dug-up soils, and a disturbed ecosystem. Abandoned and untreated MT can pose threats to the surrounding ecosystem due to the presence of various primary and secondary toxic components, such as organic substances [PAH (polycyclic …

Management of Tailings Facilities

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), released at the same time as …

Treatment of tailings in mining operations

Tailings represent an important environmental responsibility for a mining operation, since they occupy large areas of land and contain water contaminated with metals, which will eventually need to be treated during operation or after …

Treatment process of tailings pond water

Sorry have never done tailings pond water treatment before. Thank you in advance . Replies continue below Recommended for you. Sort by date Sort by votes Jul 19, …

'Notable acceleration' in oil sands tailings tech development paying

"Industry has invested more than $10 billion into tailings management and the implementation of innovative tailings treatment technology." According to BMO's analysis, the volume of fluid tailings being treated by the various approved technologies has grown substantially, from approximately 60 million cubic metres in 2016 to over 160 ...

Current state of fine mineral tailings treatment: A critical …

Fluid fine mineral tailings refer to a mixture of waste by-products generated when recovering useful and precious minerals, metals, and other resources from the ores using …

State of Fluid Tailings Management for Mineable Oil …

Published by Alberta Energy Regulator Suite 1000, 250 – 5 Street SW Calgary, Alberta T2P 0R4

A review of properties and treatment of oil sands tailings

@misc{etde_6164282, title = {A review of properties and treatment of oil sands tailings} author = {Kasperski, K L} abstractNote = {The hot water process used to extract bitumen from the oil sands in northern Alberta produce an alkaline tailings stream containing sand, clays, residual bitumen, and small amounts of soluble organic compounds. The suspension formed …

Novel Chemical Treatments for Oil Sands Tailing

Oil Sand tailings are a mixture of water (~65 wt%), residual bitumen (~3-5 wt%), sand, and clay minerals (~30 wt%) produced during the bitumen hot water extraction process.

MANAGEMENT OF TAILINGS: PAST, PRESENT AND …

Tailings management is typically easier, at least physically, in dry climates, where advantage can be taken of desiccation (that is, drying by exposure to the wind and sun) to naturally dewater, …

Kearl Oil Sands Mine: Fluid Tailings Management Report …

actual fluid tailings volume and the three thresholds (profile deviation, total volume, and total volume limit). Figure 3-2: Fluid Tailings Profile Showing Approved Profile, Triggers and Limits Describe if and how activities have deviated from the fluid tailings management plan and any modifications made to improve performance.

Progress at Pan African's gold tailings treatment project on …

Excellent progress has reportedly been made with the construction of the R2.5-billion gold tailings retreatment project, west of Johannesburg, on Gauteng's West Rand. The continued momentum of ...

Tailings Treatment and Reclamation

This treatment can also result in improved handling, material strength and a stackable tailings product that can be used in landform reclamation. These benefits can be obtained by using the right mix of lime treatment coupled with …

Tailings Retreatment: The Next Revenue Source for the Mining Industry

The failure of tailings dams is not unusual; experts estimate that a tailings dam failure occurs roughly every eight months. Even a well-managed tailings facility can pose risks in the way of contaminated dust (in the case of dry tailings), radioactivity, leaching, and acid rock drainage.

Mine tailing disposal sites: contamination problems

Mining practices and the absence of proper mine land reclamation has led to heavy metal contaminated sites with serious impact on the ecosystems and risk for human health. The origin of the contamination is often associated to mine tailing deposits because they are a source of the acid mine drainage (AMD). These areas are devoid of vegetation due to the …

Stabilization of Bauxite Mine Tailings in Venezuela (12/20/05 …

Waste Water Treatment ... Home › Stabilization of Bauxite Mine Tailings in Venezuela (12/20/05 KB767) Stabilization of Bauxite Mine Tailings in Venezuela (12/20/05 …

Uranium Ore Treatment Tailings Pond Remediation

Uranium Ore Treatment Tailings Pond Remediation By HUESKER. With this paper, you get the remediation case study of "Pond 4" in Freital (Germany) built in 1957 as a settling basin for residues of the uranium ore treatment of the Wismut company. Thanks to geosynthetics, the construction of the cover system in a very soft subgrade has been ...

Current state of fine mineral tailings treatment: A …

In addition to the disastrous consequences of accidental tailings failures, the structures of operational tailings impoundment are also a cause of concern for mine operators. Fine solids in mineral tailings slurry require long settling time, which necessitates the use of large land areas to accommodate mine productivity.

Froth Treatment Tailings | Encyclopedia MDPI

Two types of organic diluents are mainly used for froth treatment: naphtha and paraffinic solvents [].Naphtha refers to a mixture of C 5 –C 12 aliphatic hydrocarbons and benzene, toluene, ethylbenzene and xylene …

Geotechnical performance of ATA™-treated fluid fine …

Composite tailings is a tailings treatment technology that involves the mixing of coarse (grain size > 45 μm) and fine (grain size < 45 μm) tailings streams and uses chemical amendment to ...

Current state of fine mineral tailings treatment: A …

barrel of crude bitumen, 3.3 m3 of tailings is discharged, containing 1.5 m3 of fluid fine tailings (FFT) or mature fine tailings (MFT) that accumulate in the tailings pond after supernatant recovery (Masli-yah and Czarnecki, 2011). These fluid fine tailings are stable at 30% (w/w) solids content without further noticeable densifica-

Mine Tailings: The Cornerstone of Safe Mining Operations

One of the most common methods for managing mine tailings is the construction of tailings ponds or tailings storage facilities (TSFs). These large-scale repositories serve as containment areas for the collected material, allowing for the settling of solid particles and the retention of water before eventual disposal or treatment.

A critical review on bioremediation technologies of …

This plan should address safe storage, containment, and treatment of tailings throughout their entire lifecycle, taking into account the long-term ecological impacts (Adiansyah et al., 2015). As well, regular risk assessments and monitoring of tailings facilities are essential to identify potential risks and take preventive measures.

tailings treatment in venezuela

Fluid tailings make up less than 10% of tailings and are treated and used for future reclamation into closure landscapes. Treating fluid tailings quickly and cost-effectively, as well as safely …

Process effluents and mine tailings: sources, effects and

Therefore, for sustainable rehabilitation and disposal of mining waste, the sources and mechanisms of pollutant generation and their subsequent effect on environment and …

Process development for elemental recovery from PGM …

Platinum had already reported a cumulative 730.8 Mt of generated tailings (Anglo Platinum, 2009). The ever-increasing volumes of piled PGM tailings pose considerable challenges to the mining sector. These alkaline tailings are regarded as hazardous waste, which must be managed properly to avoid contamination to local surface and ground waters.

Accessing the growth potential of tailings retreatment and …

New research, developments in technology and advancements in equipment are unlocking significant growth opportunities in the extraction and treatment of tailings in South Africa. However, while ...

Flocculation and dewatering of oil sands tailings with a novel

Different chemical and mechanical methods have been developed to treat oil sands tailings: consolidated tailings, paste technology, filtration, thin lift dewatering, centrifugation, …

(PDF) Bioremediation techniques for the treatment of mine tailings…

Biosorption is a significant mechanism of MT tailings treatment by algae. Literature reported dead cells of algae to be more efficient for metal removal compared to the living cells in cases where the carboxyl group significantly influences metal binding on the surface of the cell and intracellular ligands (Srinath et al., 2002; Velásquez and ...

ATA® (Rapid Dewatering Technology)

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 returned to ...

Flocculation and dewatering of oil sands tailings with a …

Use of novel partially-hydrophobic graft polymer flocculant for mineral tailings treatment. ... (166 billion barrels), after Saudi Arabia and Venezuela [1]. Bitumen is most commonly extracted from oil sands using the Clark hot water extraction process. In this process, the oil sands ores are first mined, then crushed, and finally mixed with ...

TAILINGS FACTSHEET

The El Torito tailings facility at El Soldado, Chile. WHAT IS A TAILINGS STORAGE FACILITY? TSFs play a major role in many mining operations around the world. A TSF is a highly engineered structure which consists of one or more tailings dams, with embankments designed to permanently store the tailings. Every individual dam is unique and