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The role of roots plants and soil characteristics in coal mining areas: geochemical and nanomineralogy information still without details
(Corporación Universidad de la Costa, 2021)
In worldwide coal mining, the rejects have a smaller particle size, which ends up favoring the concentration of toxic elements and oxidative potential of the respirable fraction of powdered mined coals. Evidence of the ...
Study Of Coal Cleaning Rejects By FIB And Sample Preparation For HR-TEM: Mineral Surface Chemistry And Nanoparticle-Aggregation Control For Health Studies
(Journal Of Cleaner Production, 2018-04-05)
Nano-minerals and amorphous nanoparticles play a vital role in the contexts of human health and environmental sustainability. For instance, aerosols generated by the process of coal beneficiation adversely affect human ...
Chemical and nano-mineralogical study for determining potential uses of legal Colombian gold mine sludge: Experimental evidence
(Chemosphere, 2018-01)
The present study is focused on the chemical and nano-mineralogical characterization of sludge from gold mine activities, in order to put forward diverse solution alternatives, where lack of knowledge has been found. The ...
A review on the environmental impact of phosphogypsum and potential health impacts through the release of nanoparticles
(Corporación Universidad de la Costa, 2021-07-09)
Many industrial by-products have been disposed along coastlines, generating profound marine changes. Phosphogypsum (PG) is a solid by-product generated in the production of phosphoric acid (PA) using conventional synthesis ...
Nanometric particles of high economic value in coal fire region: Opportunities for social improvement
(Universidad de la Costa, 2020-02-10)
Spontaneous coal combustion in the La Guajira coals was studied for the presence of carbon nanophases (e.g., carbon nanotubes), occurrence of rare earth elements (REEs) in them, and the probable mechanisms for concentration ...
Coal emissions adverse human health effects associated with ultrafine/nano-particles role and resultant engineering controls
(Environmental Research, 2017)
There are multiple elements which enable coal geochemistry: (1) boiler and pollution control system design parameters, (2) temperature of flue gas at collection point, (3) feed coal and also other fuels like petroleum coke, ...
Occurrence of carbon nanotubes and implication for the siting of elements in selected anthracites
(Universidad de la Costa, 2020-03-01)
Petrographic, geochemical, and electron microbeam investigations of selected anthracites and anthracite-rank coaly shales were conducted. The Pennsylvania, Rhode Island, and KwaZu-Natal anthracites show an enrichment in ...
Multifaceted processes controlling the distribution of hazardous compounds in the spontaneous combustion of coal and the effect of these compounds on human health
(Environmental Research, 2018)
Pollution generated by hazardous elements and persistent organic compounds that affect coal fire is a major environmental concern because of its toxic nature, persistence, and potential risk to human health. The coal mining ...
A three-dimensional nanoscale study in selected coal mine drainage
(Universidad de la Costa, 2020-01-28)
Sediments from coal mine drainages (CMDs) contain large quantities of suspended pollutants (possibly numerous chemical substances) along with sulfates and hazardous elements (e.g., chromium, zinc, copper, lead) that ...