Matches in SemOpenAlex for { <https://semopenalex.org/work/W2898097615> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2898097615 endingPage "41" @default.
- W2898097615 startingPage "31" @default.
- W2898097615 abstract "Abstract Significant volumes of waste rock are produced in mining operations, particularly in open pit operations. Waste rock is characterized by a high heterogeneity in their mineralogical, hydrogeological, and physical properties, especially in comparison to tailings. The purpose of this study was to develop an improved method to quantify the net acid-generating potential of waste rock by incorporating the degree of liberation of acid-generating and neutralizing minerals. Three lithologies were sampled immediately after waste rock blasting. Each lithology was separated into seven fractions: D 5 cm were not considered. Mineralogical and chemical characterizations showed that sulphides, mainly pyrite, were enriched in the fine to mid-sized fractions (between 0.053 mm and 0.85 mm), and carbonates, mainly calcite, decreased as the particle size increased. Sulphides were more liberated within the fine fractions and their liberation was considered negligible at sizes >2.4 mm. For coarser fractions (>5 mm), sulphides were associated with non-sulphide gangue minerals which was confirmed by micro-computed tomography. The waste rock samples were submitted to both acid base accounting (ABA) and net acid generation (NAG) tests to evaluate their acid-generating potentials. Sixteen size fractions were non-acid generating and five were classified as uncertain. However, standard ABA and NAG tests are based on pulverized samples that don't consider the initial textures of samples. Therefore, ABA results (acid-generating potentials and neutralization potentials) were corrected using the degrees of sulphide and carbonate liberation. The corrected classifications reduced the acid-generating potential of most of the uncertain samples due to the high carbonates content in relation to sulphides. This study also defines a parameter, the diameter of physical locking of sulphides, that can be used to separate waste rock into a reactive and non-reactive fraction based on the relationship between sulphide liberation and particle-size fraction. The reactive fraction refers to waste rock likely to require active acid rock drainage (ARD) management, whereas non-reactive fraction refers to waste rock likely not require active management." @default.
- W2898097615 created "2018-11-02" @default.
- W2898097615 creator A5026769681 @default.
- W2898097615 creator A5040380916 @default.
- W2898097615 creator A5059746795 @default.
- W2898097615 creator A5067995858 @default.
- W2898097615 creator A5074992579 @default.
- W2898097615 date "2018-12-01" @default.
- W2898097615 modified "2023-10-12" @default.
- W2898097615 title "Determination of the available acid-generating potential of waste rock, part I: Mineralogical approach" @default.
- W2898097615 cites W121674819 @default.
- W2898097615 cites W1500013949 @default.
- W2898097615 cites W1942146338 @default.
- W2898097615 cites W1965960727 @default.
- W2898097615 cites W1976717082 @default.
- W2898097615 cites W1981002526 @default.
- W2898097615 cites W1982504695 @default.
- W2898097615 cites W1984893203 @default.
- W2898097615 cites W2018668738 @default.
- W2898097615 cites W2021674156 @default.
- W2898097615 cites W2025275925 @default.
- W2898097615 cites W2025914251 @default.
- W2898097615 cites W2026263075 @default.
- W2898097615 cites W2028264794 @default.
- W2898097615 cites W2039797562 @default.
- W2898097615 cites W2040228182 @default.
- W2898097615 cites W2043326957 @default.
- W2898097615 cites W2070209116 @default.
- W2898097615 cites W2074898106 @default.
- W2898097615 cites W2083518930 @default.
- W2898097615 cites W2092031390 @default.
- W2898097615 cites W2098946957 @default.
- W2898097615 cites W2115981072 @default.
- W2898097615 cites W2123058190 @default.
- W2898097615 cites W2142657429 @default.
- W2898097615 cites W2154940804 @default.
- W2898097615 cites W2155349595 @default.
- W2898097615 cites W2156186524 @default.
- W2898097615 cites W2186080948 @default.
- W2898097615 cites W2204736515 @default.
- W2898097615 cites W2295811269 @default.
- W2898097615 cites W2535968447 @default.
- W2898097615 cites W2602989992 @default.
- W2898097615 cites W2618690519 @default.
- W2898097615 doi "https://doi.org/10.1016/j.apgeochem.2018.10.021" @default.
- W2898097615 hasPublicationYear "2018" @default.
- W2898097615 type Work @default.
- W2898097615 sameAs 2898097615 @default.
- W2898097615 citedByCount "48" @default.
- W2898097615 countsByYear W28980976152019 @default.
- W2898097615 countsByYear W28980976152020 @default.
- W2898097615 countsByYear W28980976152021 @default.
- W2898097615 countsByYear W28980976152022 @default.
- W2898097615 countsByYear W28980976152023 @default.
- W2898097615 crossrefType "journal-article" @default.
- W2898097615 hasAuthorship W2898097615A5026769681 @default.
- W2898097615 hasAuthorship W2898097615A5040380916 @default.
- W2898097615 hasAuthorship W2898097615A5059746795 @default.
- W2898097615 hasAuthorship W2898097615A5067995858 @default.
- W2898097615 hasAuthorship W2898097615A5074992579 @default.
- W2898097615 hasConcept C127313418 @default.
- W2898097615 hasConcept C16674752 @default.
- W2898097615 hasConcept C17409809 @default.
- W2898097615 hasConcept C199289684 @default.
- W2898097615 hasConcept C39432304 @default.
- W2898097615 hasConceptScore W2898097615C127313418 @default.
- W2898097615 hasConceptScore W2898097615C16674752 @default.
- W2898097615 hasConceptScore W2898097615C17409809 @default.
- W2898097615 hasConceptScore W2898097615C199289684 @default.
- W2898097615 hasConceptScore W2898097615C39432304 @default.
- W2898097615 hasLocation W28980976151 @default.
- W2898097615 hasOpenAccess W2898097615 @default.
- W2898097615 hasPrimaryLocation W28980976151 @default.
- W2898097615 hasRelatedWork W1758497512 @default.
- W2898097615 hasRelatedWork W1967557881 @default.
- W2898097615 hasRelatedWork W1986055120 @default.
- W2898097615 hasRelatedWork W2040829098 @default.
- W2898097615 hasRelatedWork W2051980988 @default.
- W2898097615 hasRelatedWork W2106604767 @default.
- W2898097615 hasRelatedWork W2361911732 @default.
- W2898097615 hasRelatedWork W2380934447 @default.
- W2898097615 hasRelatedWork W2569551886 @default.
- W2898097615 hasRelatedWork W4200078603 @default.
- W2898097615 hasVolume "99" @default.
- W2898097615 isParatext "false" @default.
- W2898097615 isRetracted "false" @default.
- W2898097615 magId "2898097615" @default.
- W2898097615 workType "article" @default.