A systematic review exploring the utilization of coal mining and processing wastes as secondary aggregate in sub-base and base layers of pavement

Mohanty, Monika; Biswal, Dipti Ranjan; Mohapatra, Smruti Sourava

doi:10.1016/j.conbuildmat.2023.130408

Cited by 10 publications

(4 citation statements)

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“…An important difference between today's coal mining and the historical approach-from which most of the Silesian dumps come-is the sorting technologies. The solutions currently used allow for a significant reduction in the production of waste material, and the waste already produced goes directly to recovery (use in engineering construction, use in mining as backfill or sealing material) [10][11][12][13]. Disposal by landfill has become a last resort, not the first choice it once was.…”

Section: Introductionmentioning

confidence: 99%

“…The enrichment factor is used to assess the degree of anthropogenic influence on ecosystems. The results determine five classes: deficiency to minimal enrichment (<2), moderate enrichment (2-5), significant enrichment (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20), very high enrichment , and extremely high enrichment (>40). • Translocation factor (TF): TF = C n R n , where C n is the element content in the aboveground parts of the plant, and B n is the concentration of the same element in the roots [58,59].…”

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confidence: 99%

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Element Cycling at Thermally Active Coal-Waste Dumps: A Case Study of Calamagrostis epigejos and Solidago canadensis

Abramowicz,

Rahmonov

2024

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Coal-waste dumps in the Upper Silesian Coal Basin are usually colonized by tall grass Calamagrostis epigejos and Solidago canadensis, which influence the direction of vegetation formation and the soil chemistry. The aim of this study is to analyze and determine the content of major elements (Fe, Ca, P, Mg, Al, Na, K, S) and trace elements (Mo, Cu, Pb, Zn, Ni, Co, Mn, Sr, Cd, Cr) in aboveground and underground parts of the plants and the soil at the thermally active coal-waste dump. Analysis of the heavy metal concentrations reveals that they are higher in plant materials than in soil materials within the root zone of the plants. Environmental indicator analysis (geoaccumulation index, enrichment factor, translocation factor) shows that the studied species exhibit varying degrees of pollution, with cadmium and zinc showing the highest accumulation rates. The content of elements in the analyzed species, both in washed and unwashed specimens, does not show significant differences, which is confirmed by the enrichment factor. Statistical analysis shows a positive correlation between the amount of microelements in plants (roots, aerial part) and soil samples in both thermally active and inactive zones. These findings broaden the scientific inquiry and hold practical significance for the reclamation of post-industrial areas.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Element Cycling at Thermally Active Coal-Waste Dumps: A Case Study of Calamagrostis epigejos and Solidago canadensis

Abramowicz,

Rahmonov

2024

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“…A situação atual busca identificar alternativas sustentáveis e econômicas para substituir os agregados naturais por rejeitos de mineração, rejeitos de processamento e resíduos industriais (cinzas volantes, cinzas residuais, escória de aço, entre outros), a fim de utilizá-los na construção de pavimentos (MOHANTY et al, 2023).…”

Section: Introductionunclassified

“…Atualmente, pesquisadores em todo o mundo têm realizado muitos estudos sobre a utilização de rejeitos na mistura asfáltica. Portanto, evidenciou a importância do desenvolvimento de novos materiais, que se tornou foco de diversos trabalhos com o intuito de buscar soluções para a destinação desse resíduo em larga escala, diversos estudos caracterizaram ocorrências distintas de cinzas de carvão (AKINWUMI et al, 2023;MOHANTY et al, 2023;KUMAR et al, 2022;ZIARI et al, 2022;BAMIGBOYE et al, 2021;WANG et al, 2019;LI et al, 2019;WOSZUK et al, 2019;OMRANI e MODARRES, 2018e LE et al, 2018.…”

Section: Introductionunclassified

Influence of the Use of Waste Generated by Thermoelectric Power Plant on Sustainable Asphalt Mixes

Clara,

Salgado Barra,

Juliana Jargemboski

et al. 2023

HOLOS

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The main objective of this research is to evaluate the influence of using waste generated by a coal-burning thermoelectric power plant in asphalt mixes. The matrices called fly ash, bottom ash and a composition with 50 % of each type were analyzed, and compared to conventional crushed gneissic rock particles, all used as filling material (filler) at 6.0 % passing through the mesh opening 0.075 mm, in the granulometric curves of asphalt mixes. The matrices studied are technically viable for use in asphalt mixes, creating the potential for large-scale market use of bottom ash, especially in the southern region of the State of Santa Catarina. Thus, to benefit more directly from the proximity to the source producing these inputs, the South region can explore the use of power plant waste, given the easy access and shorter transport distances.

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Brittleness of layer sandstone under triaxial loading and unloading

Song

Zhang

Zhao

et al. 2023

J. Cent. South Univ.

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A systematic review exploring the utilization of coal mining and processing wastes as secondary aggregate in sub-base and base layers of pavement

Cited by 10 publications

References 46 publications

Element Cycling at Thermally Active Coal-Waste Dumps: A Case Study of Calamagrostis epigejos and Solidago canadensis

Element Cycling at Thermally Active Coal-Waste Dumps: A Case Study of Calamagrostis epigejos and Solidago canadensis

Influence of the Use of Waste Generated by Thermoelectric Power Plant on Sustainable Asphalt Mixes

Brittleness of layer sandstone under triaxial loading and unloading

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