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lead zinc mine tailings

Removal of metals from lead-zinc mine tailings using

This study investigated metals removal from lead-zinc mine tailings using bioleaching and followed by sulfide precipitation. Metals were dissolved from the tailings by the bacteria in a bioleaching reactor. During a 10% pulp density bioleaching experiment, approximately 0.82% Pb, 97.38% Zn, and 71.37% Fe were extracted after 50 days.

Removal of metals from lead-zinc mine tailings using

Oct 01, 2017 Lead-zinc tailings used for this study were collected from a lead-zinc mine plant in Shaoguan, China. Lead-zinc mine tailings were prepared by crushing and screening the material to particle sizes below 74 μm. A representative sample of the mine tailings was pulverized to conduct the chemical and mineralogical analysis.

Acidification of lead/zinc mine tailings and its effect on

May 01, 2001 The acid-forming potential of lead/zinc (Pb/Zn) mine tailings at Lechang City of Guangdong Province was studied using both net acid generation (NAG) and acid–base accounting (ABA) methods. The pyritic and total sulfur contents of the tailings were 12.6% and 18.7%, respectively.

Comprehensive utilization of lead–zinc tailings, part 1

Jun 01, 2015 The lead–zinc tailings mainly consist of pyrite and are potentially acid forming. • The lead–zinc tailings induce acid mine drainage and heavy metals pollution. • The sulfur in the lead–zinc tailings can be removed during roasting. • The SO 2 in the flue satisfies the requirement of

Recycling of harmful waste lead-zinc mine tailings and fly

Apr 15, 2017 The chemical compositions of lead-zinc mine tailings and fly ash are characterized by XRF, and the results are shown in Table 1. It is noted that the lead-zinc mine tailings contain a high content of CaO (28.09 wt%) and Fe 2 O 3 (25.09 wt%) and a certain amount of SiO 2 (14.30 wt%) and Al 2 O 3 (4.52 wt%).

Removal of metals from lead-zinc mine tailings using

This study investigated metals removal from lead-zinc mine tailings using bioleaching and followed by sulfide precipitation. Metals were dissolved from the tailings by the bacteria in a bioleaching reactor. During a 10% pulp density bioleaching experiment, approximately 0.82% Pb, 97.38% Zn, and 71.37% Fe were extracted after 50 days.

Acidification of lead/zinc mine tailings and its effect on

May 01, 2001 The acid-forming potential of lead/zinc (Pb/Zn) mine tailings at Lechang City of Guangdong Province was studied using both net acid generation (NAG) and acid–base accounting (ABA) methods. The pyritic and total sulfur contents of the tailings were 12.6% and 18.7%, respectively.

Mine Tailings Dean Carter Binational Center for

Mine tailings are large piles of crushed rock that are left over after the minerals of interest such us lead, zinc, copper, silver, gold, etc., have been extracted from the rocks that con- tained them. The extraction process is only partially efficient and, as a result, a percentage of the desired minerals are left behind in the mine tailings.

Contamination and health risk assessment of heavy metals

The lead-zinc areas of China have faced serious foulteousqulated heavy metal pollution. In this study, data on As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn concentrations in China's lead-zinc mine tailings were collected and screened from published literature (2015-2020). The contamination assessments, geogra

Natural Colonization of Plants on Five Lead/Zinc Mine

Mar 07, 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.

Solidification/stabilization of heavy metals and its

This paper aims to investigate the S/S property of four typical chemical agents (Na 2 S, NaH 2 PO 4, TMT and Na 2 EDTA) on the heavy metals in lead-zinc tailings. The results reveal that the heavy metals lead and zinc in tailings are stabilized more effectively by using chelating agents TMT than by using inorganic chemical agents Na 2 S and NaH

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

Characterization of a Bacterial Community in an Abandoned

Dec 17, 2020 Evaluation of major constraints to revegetation of lead/zinc mine tailings using bioassay techniques. Chemosphere47:1103-1111. Go to Citation. PubMed. Google Scholar. Information & Contributors Information Published In. Applied and Environmental Microbiology. Volume 74 • Number 12 •

Technical Resource Document: Extraction and Beneficiation

Mining Industry Profile: Lead-Zinc 1-1 1.0 MINING INDUSTRY PROFILE: LEAD-ZINC 1.1 INTRODUCTION This Industry Profile presents the results of the Environmental Protection Agency's (EPA's) research into the domestic lead-zinc mining industry and is one of a series of profiles of major mining sectors. Additional

Cleanup from mining in Kansas GeoKansas

Collapsed mine near Galena before cleanup. Lead and zinc mining. The legacy of lead and zinc mining in southeast Kansas, which began in 1870 and ended 100 years later, includes a number of physical hazards and environmental problems that endured long after operations ceased. Open and collapsed mine shafts and areas of surface subsidence have claimed lives and caused property

Big River Mine Tailings Site Missouri

The Big River Mine Tailings/St. Joe Minerals Corp. Site is located in a former mining region known as the "Old Lead Belt,” which is 70 miles south of St. Louis. The site became contaminated with lead, cadmium and zinc from lead mining activities, including smelting and milling.

Effect of Abandoned Lead and Zinc Mines and Tailings Piles

Dec 27, 2018 Tailings Area Runoff. Effects On Streams. Dissolved zinc concentrations averaged 9,400 µg/L (micrograms per liter) in water from abandoned lead and zinc mines, some of which discharge at the surface. Contamination of the shallow aquifer by the highly mineralized mine water is limited to the immediate mining area.

Spatial distribution and environmental implications of

Spatial distribution and environmental implications of heavy metals in typical lead (Pb)-zinc (Zn) mine tailings impoundments in Guangdong Province, South China Environ Sci Pollut Res Int. 2018 Dec;25(36):36702-36711. doi: 10.1007/s11356-018-3493-x. Epub 2018 Oct 30.

Seedling growth and metal accumulation of selected woody

Seedling growth and metal accumulation of selected woody species in copper and lead/zinc mine tailings. Shi X(1), Zhang X, Chen G, Chen Y, Wang L, Shan X. Author information: (1)Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, China. [email protected]

Spatial distribution and environmental implications of

Spatial distribution and environmental implications of heavy metals in typical lead (Pb)-zinc (Zn) mine tailings impoundments in Guangdong Province, South China Environ Sci Pollut Res Int. 2018 Dec;25(36):36702-36711. doi: 10.1007/s11356-018-3493-x. Epub 2018 Oct 30.

Big River Mine Tailings Site Missouri

The Big River Mine Tailings/St. Joe Minerals Corp. Site is located in a former mining region known as the "Old Lead Belt,” which is 70 miles south of St. Louis. The site became contaminated with lead, cadmium and zinc from lead mining activities, including smelting and milling.

Seedling growth and metal accumulation of selected woody

Seedling growth and metal accumulation of selected woody species in copper and lead/zinc mine tailings. Shi X(1), Zhang X, Chen G, Chen Y, Wang L, Shan X. Author information: (1)Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, China. [email protected]

Solidification/stabilization of heavy metals and its

This paper aims to investigate the S/S property of four typical chemical agents (Na 2 S, NaH 2 PO 4, TMT and Na 2 EDTA) on the heavy metals in lead-zinc tailings. The results reveal that the heavy metals lead and zinc in tailings are stabilized more effectively by using chelating agents TMT than by using inorganic chemical agents Na 2 S and NaH

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

Effect of Abandoned Lead and Zinc Mines and Tailings Piles

Dec 27, 2018 Tailings Area Runoff. Effects On Streams. Dissolved zinc concentrations averaged 9,400 µg/L (micrograms per liter) in water from abandoned lead and zinc mines, some of which discharge at the surface. Contamination of the shallow aquifer by the highly mineralized mine water is limited to the immediate mining area.

Technical Resource Document: Extraction and Beneficiation

Mining Industry Profile: Lead-Zinc 1-1 1.0 MINING INDUSTRY PROFILE: LEAD-ZINC 1.1 INTRODUCTION This Industry Profile presents the results of the Environmental Protection Agency's (EPA's) research into the domestic lead-zinc mining industry and is one of a series of profiles of major mining sectors. Additional

Ore Minerals and Metal Distribution in Tailings of

This study, carried out in tailings from two sediment-hosted stratiform copper deposits in the Lublin-Głogów Copper District in Poland (Kupferschiefer-type deposit) and Zhezkazgan (cupriferous sandstone-type deposit) in Kazakhstan, analysed the mineralogy of copper, zinc, and lead minerals as related to metal accumulation in sediments.

zinc ore mining and processing

Lead and Zinc Energy. 2013-11-8 ore-bearing minerals from the barren rock as much as possible during the mining process. In some mining districts, the lead or zinc is found in massive deposits and mined similar to coal using room and pillar methods. 6.1.2 Lead and Zinc Ore beneficiation Due to low zinc content, run-of-mine zinc-bearing ores must be concentrated before smelting and refining.

Immobilization of trace metals by phosphates in

Jul 26, 2013 The combined contamination of Pb, Zn, Cu, Cd, and As in the soils near lead/zinc mine waste posed a potential threat to the surrounding environment. Mitigation methods are needed to reduce the environmental risk. The aims of this paper were to evaluate the feasibility and efficiency of different forms of phosphates in remediating combined contamination caused by multi-metals and arsenic near

Geotechnical properties of zinc/lead mine tailings from

Quille M.E. and O'Kelly B.C., Geotechnical properties of zinc/lead mine tailings from Tara Mines, Ireland, Proceedings ASCE GeoShanghai 2010 Geoenvironmental . Engineering and Geotechnics: Progress in Modeling and Applications, Shanghai, China,

Shifts in microbial community composition and function in

In an attempt to link the microbial community composition and function in mine tailings to the generation of acid mine drainage, we simultaneously explored the geochemistry and microbiology of six tailings collected from a lead/zinc mine, i.e. primary tailings (T1), slightly acidic tailings (T2), extremely acidic tailings (T3, T4 and T5) and orange-coloured oxidized tailings (T6).

Soil Seed Bank as an Input of Seed Source in Revegetation

Dec 21, 2001 Dongmei LEI, Changqun DUAN, Restoration potential of pioneer plants growing on lead-zinc mine tailings in Lanping, southwest China, Journal of Environmental Sciences, 10.1016/S1001-0742(08)62210-X, 20, 10, (1202-1209), (2008).

Characterization of a Bacterial Community in an Abandoned

Dec 17, 2020 This study employed phylogenetic analyses of 16S rRNA genes to compare the bacterial communities present in highly disturbed, extremely (pH 2.7) and moderately (pH 5.7) acidic lead-zinc mine tailing samples from a semiarid environment with those from a

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