Seepage-Environmental Analysis of the Slime Zone of A Tailings Pond.

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  • English
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SeriesReport of investigations (United States. Bureau of Mines) -- 7939
ContributionsKealy, C. Daniel., Busch, R.A., Mcdonald, M.M.
ID Numbers
Open LibraryOL21739489M

Seepage-environmental analysis of the slime zone of a tailings pond (OCoLC) Online version: Kealy, Charles Daniel. Seepage-environmental analysis of the slime zone of a tailings pond (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors.

Seepage-environmental analysis of the slime zone of a tailings pond / By Charles Daniel. Kealy, joint author. Michael M. McDonald and joint author.

(Richard A.) Busch. Abstract. Includes bibliographical of access: Internet. Design, and Analysis of Tailings Dams (BiTech Publishers Ltd. This is particularly true of certain concepts and organizational emphases, as well as many of the tables and figures.

In some cases, this document presents a digest of Vick's overall approach to tailings dam planning and Size: KB. The authors support the view that for upstream dams constructed of contractant, potentially liquefiable tailings, both undrained strength analysis and steady state strength analysis should be.

The tailings in the slime zone are represented by the residual strength reflected by assigning a low Drucker-Prager friction angle corresponding to a normalized strength of 共 S r / ␴ 0.

About tailings ponds. Tailings ponds are used to store waste and water generated from ore processing. Learn about them and the revolutionary technology developed by Vale that allows the use of tailings ponds to be eliminated in some of our operations.

Anisotropy of tailings and dam permeability is also investigated.

Description Seepage-Environmental Analysis of the Slime Zone of A Tailings Pond. PDF

Transient analyses of saturated flow are performed for tailings dams constructed of dry compacted waste. For this case, the seepage line is straight for a constant pond level, and concave upwards for a rising pond and a low dam permeability.

Robert Duda, in Waste Management Series, V Conclusion. The presented prediction of contaminants migration in the area of the Zelazny Most flotation tailings dam indicates that only lowering of the groundwater table level close to the dam embankments, resulting from vertical drainage by dewatering wells, may limit propagation of contaminants in groundwater around the dam.

Examples of these include mine slime management, and dredging and dewatering of tailing ponds. Dredging and dewatering tailings ponds is not a new technology but it`s becoming increasingly popular as more and more miners look at recycling because of the environmental, and profit factors.

As there is seldom enough ground available on which the tailing of a flotation plant can be run to waste without being stacked, it is usual to impound it in some form of dam where the solids can be deposited and the water decanted off for return to the plant. It is generally advisable to recover as much of the water as possible in order not only to save the expense of obtaining a fresh supply.

Tailings Ponds Impact On Society Future Solution Our Question Answered Q: In what way might the leaching of chemicals from tailing ponds affect the water quality in a local community.

thickened tailings disposal (TTD) 60 to 75% increase of tailings solidity less contaminated. The slime algae growing in your backyard pond is either green algae or blue-green algae. Green alga (Spirogyra) is a filamentous alga found near the edges of lakes, ponds and ditches.

This bright. Dissolved and suspended solids are present in the free water of tailings ponds. This Bureau of Mines study was designed to identify the influences of the slime zone in preventing these solids from reaching the environment outside the tailings pond. The finite- element method was used to determine the rate of discharge of subsurface water from the van stone tailings pond in northern Washington.

Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an gs are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.

The extraction of minerals from ore can be done two ways: placer mining, which uses water. Tailings ponds are the indispensable facilities in the mine production and operation. Once the dam is destabilized and damaged, it will pose a serious threat on the life and property of the downstream population and could also potentially cause an environmental disaster.

With an engineering background, this paper dynamically and numerically simulates the evolution process of tailings flow from. The slime, which contains about 18per cent zinc, is collected insettling ponds for later treatment inthe Waelz Kiln. InMarch ,anassociated company, KilnProducts Limited, commissioned aWaelz Kiln atBergAukas to recover thezincfromthewillemite concentrate, current slime tailings, and tailings from a dump previously accumulated.

Aquarium Slime: What is it and what to do about it?"Slime algae" is a common problem with aquarists of all levels but getting rid of it can be tricky.

The name "slime algae" is a misnomer and what may looks like a slime in your tank could be a number of different problems or, more commonly, a symptom of a number of different problems.

The key to getting rid of it is to identify and eliminate. How to make jelly fluffy ponds slime - DIY petroleum jelly slime - No Borax - Duration: Bon Sl views. As nouns the difference between slime and tailings is that slime is soft, moist earth or clay, having an adhesive quality; viscous mud; any substance of a dirty nature, that is moist, soft, and adhesive; bitumen; mud containing metallic ore, obtained in the preparatory dressing while tailings is the waste that remains after the minerals have been extracted from an ore by ore dressing; gangue.

tion, or flotation-plant tailings low in pyrite and at the low relative pulp density of 1,3; withneutralized barren solution, the relative density islikely to drop to 1,25and even less.

The dam requirements forslimes and catchment water can vary according tothetype ofslimes. For example, flotation tailings from which pyrite has been recovered. Does Lime Kill Slime in Ponds?. Slime or scum floating on the top of a pond begins as a dense mat of filamentous algae growing on the bottom.

As the mat produces oxygen, it floats to the surface. As with copper sulfate, great care should be taken to evenly disperse commercial formulations over the entire pond area. In a pond with algae, copper treatments can cause oxygen concentrations to drop, which may result in fish kills.

Pond algae are a major source of oxygen production and by removing it, this source of oxygen is also removed. Reclamation in the mineral sands industry has concentrated on re‐establishing native ecosystems, particularly in Australia that has been the main producer of these minerals.

Heavy mineral sand mining. extend from surface to bedrock around a portion of the tailings basin.

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(A similar structure also will be built around the permanent waste rock stockpile.) This is to keep untreated water from migrating off-site. • At closure, a permanent pond will be formed at the tailings basin.

The pond bottom and. Hi, This summer, the pond has been plagued by a thick green slime that has covered the bottom and all the plants on the bottom as well. It looks a bit like frogspawn in that it is sticky, globular and jelly like, but is a deep green colour.

I have removed it when I can but even when putting it into. Analysis of a tailings sample from an acid leach mill showed that the minusmesh particles have a radium concentration more than seven times that found in the plusmesh particles.

20 At the acid leach mills discussed above, the radium concentration in the slimes par- ticles was three times that in the sands in one case, and 22 times. Comparison of Hydraulic Characteristics of Tailings Clarification Basins Initial Modal Flow Time Time Dispersion Republic Rate/cfs Ratio Ratio Index Pond 3 36 O.U (Northern Portion) Tertiary Pond 28 Tertiary Pond 22 Empire Pond Theoretical Plug Flow — 1 1 1 Ideal Mixing — 0 0   I did some bass fishing in a pond with GREEN SLIME on it.

The bass were hiding under the green slime and blowing up through it to attack my lure.

Details Seepage-Environmental Analysis of the Slime Zone of A Tailings Pond. EPUB

I fished 2 different ponds. Designated as Superfund sites, the major tailings piles and slime ponds in the district were stabilized between and by U.S. Environmental Protection Agency-Region 7 (USEPA, a). However, large volumes of metal-contaminated sediment are still stored in bed and bar deposits within the main channel below mining sites (MDNR, Ruth Kassinger is an author and speaker who writes about the intersection of gardening, history, and science.

In addition to authoring several books, Ruth has written for the Washington Post, the Chicago Tribune, Health, National Geographic Explorer, and other newest book, Slime: How Algae Created Us, Plague Us, and Just Might Save Us is now available for purchase from all.

New to Puddle Slimes and started a pond for them. I have 3, and according to multiple sources, max per pond is 4 (1 + 3 max nearby slimes). Anyways, they already exhibit the "shyness emote" I will call it, which means they won't produce plorts? Will they still produce and should I just be counting the number of slimes per pond?

Thanks.Praise for Slime. An Amazon Best Science Title of A Science News Best Title of A New York Times New and Noteworthy Title. A Science Friday Best Book of the Summer. A Library Journal Best Science and Technology Book of A BookPage Best Book of “Kassinger gives these Plain Janes their time in the sun Great reading.”.When the pyrite oxidized in coal tailings slimes and slurry in the dumping area and slime pond in Şırnak, lack of oxygen occurred in the pond, making the water contaminated for farming and aquatic life.

Moreover, the rust and heavy metals in the water make it impossible life limiting fishing [51–64].