The present work was planned to evaluate the phytoextraction of metal mine tailings, Sarcheshmeh copper mine, SE of Iran, by the endemic plant species Medicago sativa L. (Alfalfa). In this pot experiment, we investigated the effects of seven amendments on the growth of alfalfa and uptaking metals from the mine tailings and stream sediment of tailing dam surface. The mean metal concentrations in...

Background: Tailings dams are made up of mining residue deposits, and they represent a high risk, in terms of mechanical instability. In the event of collapse, the tailings in such dams may be released and flow over long distances, with the potential risk of extensive damage to property and life. The traditional geotechnical assessment of tailings facilities has mainly concentrated on the stabi...

Abstract Compacted clay is an effective and economical engineering barrier for seepage prevention gas blocking in landfills (including tailings pond, landfill, etc.). In addition to the lack of durability such as desiccation cracks compacted modified by clinoptilolite sodium polyacrylate, it also necessary consider changes properties water holding capacity, resistance, strength clay. Therefore,...

The paper presents the risks regarding physical and chemical stability of tailings ponds grouped under name Ds (D1, D2, D3, D4) located on right bank river Cisla near residential area Baia Borşa Colbu pond upstream Borşa. closure these was done in a defective manner, without complying with design execution rules provided Technical Regulation waste storage. are two types risks: first type, due t...

The efficacy of methyl bromide fumigations in mills (6 mills) was compared to heat treatments (3 mills), sulfuryl fluoride (ProFume®) (4 mills) and phosphine (ECO2FUME®), heat and carbon dioxide combination treatment (2 mills). The efficacy of treatments was estimated in three ways: Tribolium castaneum adults and eggs in vials during treatment, pheromone traps and rebolt sifter tailings counts....

the contents of as, cd, cu and mo were determined in soil surrounding meyduk tailings dam based on 21 surface soil samples. assessment of toxic element pollution in studied soil samples needs knowledge of pre-anthropogenic metal concentration to act as a reference against which measured values could be compared. estimating the background values was executed by sampling rocks adjacent to soil s...

Tailings dams, due to methods and materials used in their construction are vulnerable structures to earthquake. In many cases storage of water over tailings is required to prevent aerial pollution or reduction in water consumption by the means of a recycling system, therefore failure of these kinds of dams not only induce affects similar to conventional water dams, but also may lead to irrevers...

Geomembranes are used worldwide as basin liners in tailings ponds to decrease the permeability of foundation and prevent further transportation harmful contaminants contaminated water. However, leakage into environment damage geomembrane have been reported. This paper reviews available literature recommendations on structures for use a basal liner ponds, presents framework achieve early involve...

investigations were carried out on coal tailings by conventional cell and column flotation techniques. tests were conducted to assess processing coal tailings of alborz markazi coal washing plant in iran by column flotation. the effects of reagent type/dosage were investigated with conventional flotation and their results were used in the performance of column flotation. also the effects of the...

In this paper a parametric study was undertaken to quantify the sensitivity Abstract to a wide range of coastal detention pond systems dealing with tidal influence to store surface flood water so as to produce general guidance on the importance of the catchment and pond variables. In this process a specified pond design return period was selected for which the system was to be designed. The pon...