Cadmium, lead, and zinc in reclaimed phosphate mine waste dumps in Idaho

This study presents the results of a coupled electrocoagulation-phytoremediation treatment for the reduction of copper, cadmium, lead, and zinc, present in aqueous solution. The electrocoagulation was carried out in a batch reactor using aluminum electrodes in parallel arrangement; the optimal conditions were current density of 8 mA/cm2 and operating time of 180 minutes. For phytoremediation the macrophytes, Typha latifolia L., were used during seven days of treatment. The results indicated that the coupled treatment reduced metal concentrations by 99.2% Cu, 81.3% Cd, and 99.4% Pb, while Zn increased due to the natural concentrations of the plant used.

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The phytoextraction power of Cichorium intybus L. on metal-contaminated soil: Focus on time- and cultivar-depending accumulation and distribution of cadmium, lead and zinc

Chemosphere ◽

10.1016/j.chemosphere.2021.132122 ◽

2021 ◽

pp. 132122

Author(s):

Théo Guérin ◽

Alina Ghinet ◽

Christophe Waterlot

Keyword(s):

Contaminated Soil ◽

Cichorium Intybus ◽

Lead And Zinc ◽

Cadmium Lead

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Cadmium, lead and zinc in growing rats fed corn leaf tissue grown on soil amended with sewage sludge or heavy metal salts.

Environmental Health Perspectives ◽

10.1289/ehp.8142197 ◽

1981 ◽

Vol 42 ◽

pp. 197-202 ◽

Cited By ~ 8

Author(s):

J Miller ◽

F C Boswell

Keyword(s):

Heavy Metal ◽

Sewage Sludge ◽

Leaf Tissue ◽

Metal Salts ◽

Growing Rats ◽

Lead And Zinc ◽

Heavy Metal Salts ◽

Cadmium Lead

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Monitoring of clay mine waste for utilization in the non-soil reclamation of mine waste dumps

Mine Planning and Equipment Selection 2000 ◽

10.1201/9780203747124-166 ◽

2018 ◽

pp. 885-889

Author(s):

Zbigniew Bzowski

Keyword(s):

Mine Waste ◽

Soil Reclamation ◽

Waste Dumps

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Characterisation of Tailings from Itakpe Iron Ore Mine, Itakpe, Nigeria

Sustainable Geoscience and Geotourism ◽

10.18052/www.scipress.com/sgg.4.1 ◽

2021 ◽

Vol 4 ◽

pp. 1-8

Author(s):

R.A. Adebimpe ◽

A.O. Fatoye

Keyword(s):

Specific Gravity ◽

Food Chain ◽

Iron Ore ◽

Mine Waste ◽

Cadmium Concentration ◽

Metal Mobility ◽

Residual Fraction ◽

Base Line ◽

Iron Ore Mine ◽

Waste Dumps

Knowledge of tailings characteristics is required for utilisation and management purposes in the mining and construction industry. Tailings from the mine waste dumps at Itakpe iron ore mine were collected and analysed in the laboratory to determine their chemical and physical characteristics and these include; permeability, porosity, specific gravity, particle size distribution, chemical composition and bioavailability factor of element. Geochemical speciation with quantitative X-ray powder diffraction was used to evaluate the chemical and mineral composition of Itakpe iron ore tailings. The aim is to offer base line data necessary to assess metal mobility and bioavailability. The distribution of heavy metals such as Cu, Ni, Cd, Cr, Zn and Fe was determined using multi- step sequential extraction. The results obtained indicate that the permeability is 6.24 x 10-3 cm/sec; porosity is 35%; and specific gravity is 3.58. The tailings is well graded and is sand gravel. Nickel and Zinc was found to be considerably high in exchangeable and bound to carbonates fraction which are mobile region and is bound to Fe – Mn oxides which is slightly mobile region but the higher concentration of Ni found in residual fraction. The implication of this result is that Nickel and Zinc partially enter into the food chain. Chromium and Cadmium concentration result indicated that these metals can easily enter into the food chain because of their presence in the mobile region and their higher mobility percentage.

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