A Test of Two Methods for Waste Rock Drainage Quality Prediction: Aqua Regia Extraction and Single-addition Net-acid Generation Test Leachate Analysis

Autor: Teemu Karlsson, Päivi Kauppila, Lena Alakangas, Marja Liisa Räisänen

Publikováno v: Mine Water and the Environment. 40:736-751

The mobility of contaminants from mine waste can be assessed using different extraction methods. Aqua regia (AR) extraction is the most commonly used method in Finland. Another method is the analysis of leachate from net acid generation (NAG) tests,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7dc3e738ad7c3245ea6cec4b227ca5cb
https://doi.org/10.1007/s10230-021-00784-0

Mining tailings as raw materials for reaction-sintered aluminosilicate ceramics

Autor: Juha Lagerbom, Elina Huttunen-Saarivirta, Päivi Kivikytö-Reponen, Mari Honkanen, Arnold Ismailov, Soili Solismaa, Marja Liisa Räisänen, Erkki Levänen, Marjaana Karhu

Publikováno v: Karhu, M, Lagerbom, J, Solismaa, S, Honkanen, M, Ismailov, A, Räisänen, M L, Huttunen-Saarivirta, E, Levänen, E & Kivikytö-Reponen, P 2019, ' Mining tailings as raw materials for reaction-sintered aluminosilicate ceramics : Effect of mineralogical composition on microstructure and properties ', Ceramics International, vol. 45, no. 4, pp. 4840-4848 . https://doi.org/10.1016/j.ceramint.2018.11.180

This paper presents studies on the utilization of aluminosilicate-based mining tailings as raw materials for mullite-based ceramics. Based on the 3:2 stoichiometric composition, mullite was synthesised by reactive sintering with a series of powder mi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab05fd4fe2e6d7dddf4c1b80cb9ce9c7
https://doi.org/10.1016/j.ceramint.2018.11.180

Hydrogen Peroxide Ammonium Citrate Extraction: Mineral Decomposition and Preliminary Waste Rock Characterization

Autor: Marja Lehtonen, Marja Liisa Räisänen, Timo Myöhänen, Päivi Kauppila, Lena Alakangas, Teemu Karlsson

Publikováno v: Minerals, Vol 11, Iss 706, p 706 (2021)
Minerals
Volume 11
Issue 7

A commonly-used method in ore exploration is hydrogen peroxide ammonium citrate (HA) extraction, which has not typically been used in waste rock characterization. In this study, the sulfide specificity and leaching of other minerals in HA extraction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e107545a8595eac6a74ca6a24cab0294
https://www.mdpi.com/2075-163X/11/7/706

Valorization of Finnish mining tailings for use in the ceramics industry

Autor: Arnold Ismailov, Marjaana Karhu, Soili Solismaa, Mirja Illikainen, Harisankar Sreenivasan, Paivo Kinnunen, Marja Liisa Räisänen, Marja Lehtonen

Publikováno v: Bulletin of the Geological Society of Finland, Vol 90, Iss 1, Pp 33-54 (2018)
Solismaa, S, Ismailov, A, Karhu, M, Sreenivasan, H, Lehtonen, M, Kinnunen, P, Illikainen, M & Räisänen, M L 2018, ' Valorization of Finnish mining tailings for use in the ceramics industry ', Bulletin of the Geological Society of Finland, vol. 90, pp. 33-54 . https://doi.org/10.17741/bgsf/90.1.002

The present study valorized Finnish mining tailings waste to identify opportunities for the use of ceramics technologies. On the basis of their mineralogical and chemical contents, the five selected tailings wastes represented felsic mining tailings

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f270c30797264433b286829c04b065b
https://cris.vtt.fi/en/publications/3a7a6a12-2fc7-4fd2-b579-c527603be2d2

Comparison of static and mineralogical ARD prediction methods in the Nordic environment

Autor: Lena Alakangas, Marja Lehtonen, Teemu Karlsson, Marja Liisa Räisänen

Publikováno v: Environmental Monitoring and Assessment

Acid rock drainage (ARD) is a major problem related to the management of mining wastes, especially concerning deposits containing sulphide minerals. Commonly used tests for ARD prediction include acid–base accounting (ABA) tests and the net acid ge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eba514ec84e7253d0f4a6e5fd1eb05e6
https://pubmed.ncbi.nlm.nih.gov/30426238