Tailings Settling Ponds

Oil sands tailings ponds - Wikipedia

Suncor's Wapisiw Lookout By 2010 Suncor had transformed their first tailings pond, Pond One, into Wapisiw Lookout, the first reclaimed settling basin in the oil sands In 2007 the area was a 220-hectare pond of toxic effluent but several years later there was firm …

Tailings - Wikipedia

Tailings Ponds - Canada's Oil Sands

Tailings ponds are settling basins that enable process water to be separated and continuously recycled Water is continuously recycled from the tailings ponds back into the extraction process, reducing use of fresh water from the Athabasca River and other sources

Tailings & Water Management | McLanahan

Settling ponds are large, manmade, relatively calm bodies of water used to store tailings They allow the suspended solids in a slurry to separate from the liquid Over time, the suspended solids settle to the bottom of the pond and accumulate there, leaving the water on top relatively free of contaminants so it can be pumped back to the processing plant for reuse

Oil sands tailings ponds - Energy Education

Oil sands tailings ponds Figure 1 Oil sands tailings pond in Fort McMurray, Alberta Tailings ponds are settling ponds that contain the waste byproduct of oil sands extraction and upgrading They are a mix of water, sand, silt, clay, unrecovered hydrocarbons, and other contaminants

Settling the tailings pond question Advances in the

W hat to do with tailings ponds from oil sands mining operations has long been the industry’s leading environmental challenge These vast ponds have grown to 220 square kilometres and now hold about 12 trillion litres of murky, contaminated water that will take many decades to settle out

Tailings Mineral Industry Solution - WesTech Engineering, Inc

Tailings Ponds 101 | Oil Sands Magazine

These tailings streams are pumped out to the tailings pond, where the solids settle to the bottom of the pond and clarified water is pumped back to the main processing plant This reclaimed water provides over 80% of the facility's process water needs

Anaconda Settling Ponds | Fishing Warm Springs Wildlife

Anaconda Settling Ponds The Anaconda Settling Ponds are part of the Warm Springs Wildlife Management Area, managed by the State of Montana As such, it is managed for fisheries and wildlife habitat Besides holding some huge trout in these ponds, …

Mine Tailings Dredges & Mine Tailing Dredging Equipment

Printer Friendly PDF Mine tailings are the natural byproduct of raw materials mining As rocks and minerals are crushed and washed, the effluent water carries the dust particles to settling ponds where the material is collected and eventually removed It is then hauled away for a secondary process or stored for long periods of time

Tailings ponds: What they’re made of - Oil Sands Question

Settling basins A tailings pond is as an engineered dam and dyke system designed to keep material from releasing into the environment Ponds are essentially settling basins – temporary containers for the mix of water, sand, clay and residual oil that is left over after raw oil sands have been processed into bitumen The ponds also contain salts and soluble organic compounds, and sometimes traces of the solvents …

Tailings Mineral Industry Solution - WesTech Engineering, Inc

Surface stacking is the disposal of tailings on the surface of the ground As a non-settling, non-segregating suspension of solids, minimal water is released into the impoundment and the stacked tailings dries significantly faster than conventional ponds where fines (slimes) segregate and can seal the surface of the deposit, preventing drying

Tailings ponds a toxic legacy of Alberta’s oilsands | The Star

Tailings ponds a toxic legacy of Alberta’s oilsands The settled “mature” fine tailings will be gradually removed and then returned to the mined-out pits Eventually they will be covered by sand and topsoil to enable a reclaimable area, which will take several decades, containing both upland and wetland features

Anaconda Settling Ponds | Fishing Warm Springs Wildlife

The settling ponds themselves were created to hold the mining wastes, acting as a dam so that the metals didn’t end up in the Clark Fork The tailings are then covered over with lime to prevent them from leeching A series of ponds provides treatment to the water, with the water being further cleansed as it is transferred from pond to pond

Tailings ponds a critical part of Alberta’s oilsands

Tailings ponds a critical part of Alberta's oilsands legacy Syncrude opened a $19-billion centrifuge plant at its Mildred Lake facility in 2015 to spin water out of the fluid fine tailings and dump the clay cake that’s left into mined-out sites The facility handled nine million cubic metres of fluid fine tailings in its first year

Oil Sands Tailings: What Needs to be Done | MINING

When deposited in a tailings pond, the sand settles out rapidly to form dykes and beaches while, depending on the makeup of the tailings stream and the method of deposition, only one-third to one

Polymer aids for settling and filtration of oil sands tailings

Polymer aids for settling and filtration of oil sands tailings Xiaoyan (Tara) Wang Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G6 of polymer can provide an alternative approach for oil sands tailings disposal that has the potential to eliminate tailings ponds However, the commercial

Pumping out settling ponds - Mine tailings - YouTube

Jul 22, 2013 · Pumping out settling ponds on amine site Pompage d'un parc à résidus miniers

Assessment of Effective Design of Tailing Pond for Safe

Physico-chemical characteristics of the tailings of an iron ore beneficiation plant and the effectiveness of tailing pond for the removal of toxic pollutants are discussed To carry out the effective design of tailing pond settling characteristics of tailings were carried out

Syncrude Tailings Dam - Wikipedia

Mildred Lake Settling Basin (MLSB)Edit It is a tailings pond that serves three purposes Firstly, the embankment was planned as storage for a substantial volume of sand Secondly, the basin acts as a storage basin for process water, which is recycled, with a planned ultimate storage capacity of 350×10 6 …

Operation and Location Facility Type Status Tailings

Gove, NT, Australia Labyrinth and Settling Ponds Water Inactive Gove, NT, Australia Northern Ponds Tailings Under rehabilitation Downstream Gove, NT, Australia Pond 2 Tailings Inactive Downstream Gove, NT, Australia Pond 3 Tailings Closed Upstream Gove, NT, Australia Pond 4 Tailings …

Mining Liners by AccuGeo Liner

Mining Liners Solution ponds are normally lined with HDPE as an exposed liner Tailings dams can be lined with PVC or HDPE Tailings dams use liners to prevent the release of concentrated mine chemicals into the environment Tailings ponds and dams accumulate the solids remaining from the mining operation, often in the form of a fine sand

Tailing Disposal Methods and Tailings Dam Construction Design

Types of Tailings Dam settles on the inside face penetrates a short distance, but quickly forms an impervious layer that prevents leakage The classifier should be situated at the dam itself and not in the plant, since deslimed sand needs a launder of steeper slope than unclassified tailing, the slope required being, as a rule,

Carbon Dioxide Amended Tailings | Canada’s Oil Sands

Tailings are the sand, silt, clay and water found naturally in oil sands that remain following the mining and bitumen extraction process Tailings are transported by pipeline and deposited in ponds where the majority of the solids – mostly sand – settle to the bottom

Mine Tailings Disposal Methods

Today, the universal disposal method for tailings is the tailing pond Tailings are slurried with water and pumped to tailing ponds for settling Frequently, tailings are cyclone-classified before deposition Coarse sands are used to build-up the tailing dam, while the slimes are deposited inside the pond

Oil Sands Tailings: What Needs to be Done | MINING

The accumulation of mature fine tailings (MFT) in tailings ponds has been a concern of the oil sands industry for nearly four decades However, even when a few measures have been implemented, the industry is still using processes that operate at elevated pH, which is the source of tailings with poor settling and consolidation properties

What you need to know about Tailings Ponds | THE OGM

Tailings Ponds are Essential to the Oil Sands Tailings Ponds are Essential to the Oil Sands Image and Reality – Tailings Ponds: it became necessary to build more and larger settling ponds There are several oil sands tailings ponds, each close to 40-45 meters in height, covering a total area of 170 square kilometers

Tailings Paste Disposal – More than Water Recovery

Tailings Paste Disposal – More than Water Recovery At some solids concentrations, the yield stress becomes sufficiently high enough to support the particles and hold them in suspension as a paste As the solids concentration increases, the yield stress increases, more particles become non-settling, and the “thicker” the paste becomes

Operation and Location Facility Type Status Tailings

Gove, NT, Australia Labyrinth and Settling Ponds Water Inactive Gove, NT, Australia Northern Ponds Tailings Under rehabilitation Downstream Gove, NT, Australia Pond 2 Tailings Inactive Downstream Gove, NT, Australia Pond 3 Tailings Closed Upstream Gove, NT, Australia Pond 4 Tailings …

Tailings Management | Syncrude

Tailings are placed in large landforms commonly referred to as settling basins or tailings ponds Tailings ponds serve two uses – one, as the recycled water source for our plants and, two, as a containment area which enables tailings to segregate prior …

The Facts on Oil Sands - Canadian Association of Petroleum

Settling ponds Settling or tailings ponds are large engineered dam and dyke systems designed to contain and settle the water, sand, fine clays, silts, residual bitumen and other by-products of the oil sands mining and extraction process

Mud Cat Mine Dredges & Mining Dredging Systems Photos

Mud Cat dredges are used by sand producers and for cleaning up mine tailings ponds Mud Cat dredges can be used in a variety of mining applications including, but not limited to: Sand mining Settling ponds Metal tailings ponds Coal tailings ponds Mine impoundment clean-up pre and post disaster work

Polymer aids for settling and filtration of oil sands tailings

Both polymers were shown to effectively flocculate the derived oil sands tailings and hence to enhance tailings settling Al‐PAM performed very well as a filtration aid The final moisture content of the filter cake obtained from tailings derived from the low fines ore was 66 ± 12 wt% and that from the high fines ore was 169 ± 08 wt%

Tailingsfo Water Management Considerations for

Reclaim pond (s) A reclaim pond is situated outside the confining walls of the tailings storage area a short distance away (figure 7) The water in the reclaim pond is either sent to treatment/polishing ponds for discharge to the environment or pumped back to the plant for use in the processing operation

Mining Liners by AccuGeo Liner

Mining Liners Mining uses multiple liners for multiple functions: heap leach liners, solution pond liners, tailings dams Check local regulations for lining materials requirements Heap leach mining uses a chemical solution to dissolve metals in ore, which can then be collected by a liner and refined

Tailing ponds - dragflowus

Oil Sand - Tailing pond dredging - The standard industry practice is to pump oil sands tailings into large settling ponds There, the heaviest material settles to the bottom, separating from the top layer of water which can be recycled

Study of the Settling Characteristics of Tailings Using

The tailings settling rate depends on particle size, density and surface properties which can be modified by variations in the pH, salinity, and addition of flocculants and/or coagulants Although plant scale developments have been made to improve tailings settling rates, there is a need for an on-site fast measurement of tailings settling

Pumping out settling ponds - Mine Tailings - YouTube

Jul 29, 2013 · Pumping out settling ponds on a mine site Have a close look at how our equipment eats through a wall of tailings and proves we can pump solids like no other versatile equipment can