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Phytoremediation of Mine Tailings and Bio-ore Production

Seeds of the following species were also planted directly on tailings or after addition of peat at the three sites: Indian mustard Brassica juncea(), white mustard Sinapis alba(), slender wheatgrass (Agropyron trachycaulum), altai wildrye Elymus angustus(), reed canary grass Phalaris arundinacea(), creeping foxtail (Alopecurus arundinaceus), streambank wheatgrass (Agropyron riparium) and tall fescue

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Plants from the abandoned Nacozari mine tailings

04/05/2017· Phytostabilization is a remediation technology that uses plants for in-situ stabilization of contamination in soils and mine tailings. The objective of this study was to identify native plant species with potential for phytostabilization of the abandoned mine tailings in

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Plants growing on abandoned mine sites: a chance in

Weathering of mine tailings is considered as an environmental problem throughout the world, since acidic conditions induced by oxidation of sulphides increase the sol- ubility of heavy metals and may determine serious hazard to groundwater, plants and ultimately the human health. Results In recent years, a survey of soils and plants growing on contaminated areas at several abandoned sulphide

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Mine Tailings an overview ScienceDirect Topics

Burning of coal in thermal power plants and disposal of fly ash, long-term mining and smelting of the sulfide ores, runoff from mine tailings, and application of pesticides and herbicides release huge amounts of arsenic in to the biosphere. Additionally, arsenic is also used in the production of semiconductors, lead-acid batteries, and pesticides and herbicides, in the glass industry and

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Restoration potential of pioneer plants growing on lead

No. 10 Restoration potential of pioneer plants growing on lead-zinc mine tailings in Lanping, southwest China 1203 Freitas et al., 2004). It is well known that the research on the rhizosphere has been a burning issue because of the important role it plays in agriculture and environment (Wang et al., 2002). In recent years, the changes in the rhizosphere soil for heavy metal speciation and the

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How plants can help clean up oilsands tailing ponds

09/12/2020· However, tailings are not particularly hospitable to plant growth as they can lack nutrients such as nitrogen and often contain hydrocarbons, naphthenic acids, salts and heavy metals. Oilsands...

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Plants from the abandoned Nacozari mine tailings

tion among plants growing spontaneously in mine tailings allows identification of species with the best potential for phytostabilization (Santos-Jallath et al., 2012; Cortes-Jimenez et al., 2013). If bioconcentration (total element concentration in shoot tissue total element concentration in mine tailings) or accumulation factors are greater than 1, species are not suitable for

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Plants from the abandoned Nacozari mine tailings

The objective of this study was to identify native plant species with potential for phytostabilization of the abandoned mine tailings in Nacozari, Sonora in northern Mexico. A flora of 42 species in 16 families of angiosperms was recorded on the tailings site and the abundance of the most common perennial species was estimated. Four of the five abundant perennial species showed evidence of

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Mine Tailings an overview ScienceDirect Topics

Burning of coal in thermal power plants and disposal of fly ash, long-term mining and smelting of the sulfide ores, runoff from mine tailings, and application of pesticides and herbicides release huge amounts of arsenic in to the biosphere. Additionally, arsenic is also used in the production of semiconductors, lead-acid batteries, and pesticides and herbicides, in the glass industry and

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Natural Colonization of Plants on Five Lead/Zinc Mine

07/03/2005· Mine tailings can have a specific assemblage of plant species due to their unique physicochemical properties, and this process can be important in developing ecological theory and restoration practice. Physicochemical properties and natural colonization of plants on five lead/zinc (Pb/Zn) mine tailings in southern China were investigated. The tailings studied included Fankou and

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Process effluents and mine tailings: sources, effects and

19/12/2016· Mine tailings, consisting of process effluents that are generated in a mineral processing plant, are generally transferred to tailings ponds/impoundments to meet environmental regulations and site-specific factors before discharge. Most mining activities induce an impact on their geochemical environment (e.g., water, groundwater) due to the presence of metal-rich tailing deposits. The need for

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Tailings management in gold plants ScienceDirect

01/07/2005· The tailings management system of a mining operation is comprised of many components which include: tailings treatment in the mill; slurry thickening; slurry transport; tailings impoundment; water recovery and recycle; tailings and effluent treatment; evaporation and restoration of the site (Ritcey, 1988a, Ritcey, 1989).A simplistic environmental tailings model is shown in Fig. 1.

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Phytostabilization of Mine Tailings in Arid and Semiarid

Mine tailings disposal sites from either inactive or abandoned mine sites are prevalent in arid and semiarid regions throughout the world. Major areas include northern Mexico and the Western United States, the Pacific coast of South America (Chile and Peru), southwestern Spain, western India, South Africa, and Australia (Munshower 1994; Tordoff et al. 2000).

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Mine Tailings Disposal Methods 911 Metallurgist

16/06/2017· As discussed previously, the primary types of solid wastes generated by the mining industry are overburden and waste rock from surface mining, waste rock from underground mining, bulk tailings from metal-ore and non-metal mineral beneficiation and milling processes and refuse from coal preparation-plant processes. The methods commonly employed for disposal of these wastes in each

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Management of Phosphate Tailings

For the past several decades, the U.S. Environmental Protection Agency has kept 21 old, Central Florida phosphate mining and processing sites on a list of industrial sites that warrant evaluation to determine if they should get cleanups under the Superfund program. However, the EPA to date has conducted an evaluation of only one of those sites, the 7,000-acre Tenoroc Mine, which was excavated

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Ambatovy Plant Site

Mine Site; Pipeline; Plant Site; Tailings; Port; Other Infrastructure ; Plant Site. The Plant Site is a vast industrial complex covering more than 320 ha (or about the size of 250 football fields), and is located 11 km south of the Port of Toamasina. Facilities were designed, built, and now operate in accordance with Malagasy regulations and the World Bank Group’s International Finance

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Plants from the abandoned Nacozari mine tailings

tion among plants growing spontaneously in mine tailings allows identification of species with the best potential for phytostabilization (Santos-Jallath et al., 2012; Cortes-Jimenez et al., 2013). If bioconcentration (total element concentration in shoot tissue total element concentration in mine tailings) or accumulation factors are greater than 1, species are not suitable for

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Plants growing on abandoned mine sites: a chance in

Weathering of mine tailings is considered as an environmental problem throughout the world, since acidic conditions induced by oxidation of sulphides increase the sol- ubility of heavy metals and may determine serious hazard to groundwater, plants and ultimately the human health. Results In recent years, a survey of soils and plants growing on contaminated areas at several abandoned sulphide

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Accumulation of Arsenic by Plants Growing in the Sites

The uptake of As by various plants growing in highly enriched sites was examined in order to identify potential As accumulators and to assess the risk associated with As presence in plant shoots. Representative samples of 13 plant species, together with soil samples, were collected from various sites affected by historical As mining: mine and slag dumps, tailings and contaminated soils with As

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Restoration potential of pioneer plants growing on lead

No. 10 Restoration potential of pioneer plants growing on lead-zinc mine tailings in Lanping, southwest China 1203 Freitas et al., 2004). It is well known that the research on the rhizosphere has been a burning issue because of the important role it plays in agriculture and environment (Wang et al., 2002). In recent years, the changes in the rhizosphere soil for heavy metal speciation and the

Ask For Price

Natural Colonization of Plants on Five Lead/Zinc Mine

07/03/2005· Mine tailings can have a specific assemblage of plant species due to their unique physicochemical properties, and this process can be important in developing ecological theory and restoration practice. Physicochemical properties and natural colonization of plants on five lead/zinc (Pb/Zn) mine tailings in southern China were investigated. The tailings studied included Fankou and

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Rehabilitation in Action: From Tailings Ponds to Green

28/08/2015· The rehabilitation project requires a lot of plants and we are growing native species in our 15 hectare nursery, one of the largest in northern Greece. Located on land previously restored by Eldorado, the nursery is watered with excess water from our mine sites in Halkidiki. Plants go through an innovative “toughening” process, in which they are left without fertilizer in order to

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Ecological amendment of uranium mine tailings using native

01/01/2021· Selection of vegetation and plants species for remediation of tailings cover. While growing vegetation and plants over the remediated tailings has many advantages, there are a few disadvantages as well. Roots of vegetation create cracks and fissures causing an increase in the porosity of the top layer (Karaca et al., 2018; Sun et al., 2018

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Tailingsfo What Are Tailings? Their nature and production

Tailings consist of ground rock and process effluents that are generated in a mine processing plant. Mechanical and chemical processes are used to extract the desired product from the run of the mine ore and produce a waste stream known as tailings. This process of product extraction is never 100% efficient, nor is it possible to reclaim all reusable and expended processing reagents and

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Tailingsfo The website focused at tailings related

The research has developed a systematic tailings management system that can be established at any mine site to enhance the consistency of day to day management, reduce risk and increase safety. Accompanying the thesis is an interactive online database that is designed to increase awareness of safe storage practices. This database compliments the managerial components of the thesis by ensuring

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Tailings dewatering Weir Group

18/11/2019· Large mine sites or those with complex ore bodies can produce many different tailings waste slurries which may require varying methods of treatment. Across this multitude of situations, the operator must determine all associated costs and assess the level of dewatering required to confirm the most suitable solution for their site.