نتایج جستجو برای: tailings dust

تعداد نتایج: 44270  

2016
Ali A. Mahmood Maria Elektorowicz

As part of a comprehensive research program, new tailings matrices are formulated of combinations of tailings and binder materials. The research program encompasses experimental and numerical analysis of the tailings matrices to investigate the feasibility of using them as construction materials in cold climates. This paper discusses a conceptual cost benefit analysis for the use of these new m...

2016
Shuai Li Qiusong Chen Xinmin Wang

In order to evaluate the superiority of a filtered tailings storage facility (FTSF) to conventional tailings impoundment in the southern rainy regions of China (SRRC), the tailings slurry leakage and pollution accident occurring at the wet tailings dam (WTD) of Yinshan were analyzed, the properties of the tailings were tested in a laboratory, and the possibility of tailings liquefaction was eva...

2015
Renzhi Liu Jing Liu Zhijiao Zhang Alistair Borthwick Ke Zhang Miklas Scholz

Over the past half century, a surprising number of major pollution incidents occurred due to tailings dam failures. Most previous studies of such incidents comprised forensic analyses of environmental impacts after a tailings dam failure, with few considering the combined pollution risk before incidents occur at a watershed-scale. We therefore propose Watershed-scale Tailings-pond Pollution Ris...

2008
L. E. Dias W. L. Daniels

This paper presents the methodology developed by the association of Mineração Rio do Norte S.A. with Embrapa/Agrobiologia and the Soil Department of Federal University of Viçosa to promote revegetation of tailings ponds from bauxite mining in Porto Trombetas, Para State, Brazil. The tailings have a fine texture (77% clay), are low in nutrients, have low pH (4.5) and high Pfixation capacity. Thi...

2011
B. Das S. Prakash P. S. R. Reddy S. K. Biswal B. K. Mohapatra V. N. Misra

Investigations were carried out on the effective utilization of blast furnace flue dust samples obtained from the two integrated steel plants at Rourkela and Jamshedpur. The samples essentially contained unburnt coke and iron rich grains as the value added products. Flotation technique was employed to recover the carbon values present in the sample. It was possible to obtain a product containin...

Journal: :Marine environmental research 2005
Matthew R Lee Juan A Correa

The effects of the disposal of copper mine tailings on the littoral meiofaunal assemblages of the Chañaral area of northern Chile were studied. Of the metals data collected, only in the case of copper was there a clear association with the tailings distribution in both the seawater and porewater samples, and it is assumed that the tailings on the beaches was the source of copper in the adjacent...

Journal: :IOP conference series 2023

Abstract Tailings formed during the mining and beneficiation of iron ore are sources intensive dust generation. In order to assess intensity formation determine effectiveness methods its reduction, it is necessary know local velocity air flow near various surfaces tailings storage facility. For theoretical solution this problem, a CFD model was developed, which allows determining field when flo...

Journal: :Journal of environmental sciences 2014
Xin Zhang Yongguan Zhu Yuebin Zhang Yunxia Liu Shaochun Liu Jiawen Guo Rudan Li Songlin Wu Baodong Chen

A pot experiment was conducted to investigate the feasibility of growing energy sugarcane (Saccharum spp.) in three different metal mine tailings (Cu, Sn and Pb/Zn tailings) amended with uncontaminated soil at different mixing ratios. The results indicated that sugarcane was highly tolerant to tailing environments. Amendments of 20% soil to Sn tailings and 30% soil to Cu tailings could increase...

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