Using mining waste for CO2 sequestration: exploring opportunities through mineral carbonation, nature-based solutions, and CCUS

被引:4
作者
Weiler, Jessica [1 ,2 ]
Tassinari, Colombo Celso Gaeta [2 ]
De Aquino, Thiago Fernandes [3 ]
Bonetti, Beatriz [3 ]
Viola, Vanessa Olivo [3 ]
机构
[1] Univ Sao Paulo, USPSusten, Superintendencia Gestao Ambiental, Sao Paulo, Brazil
[2] Univ Sao Paulo, Inst Energia & Ambiente, Sao Paulo, Brazil
[3] Assoc Beneficente Ind Carbonifera Santa Catarina, Ctr Tecnol, Criciuma, SC, Brazil
关键词
Tailings; waste management; mineral carbonation; NBS; CCUS; sustainable mining; STORAGE CAPACITY; CAPTURE; COAL; SOIL; DIOXIDE; EMISSIONS; TAILINGS; BIOMASS; TOPSOIL; RECLAMATION;
D O I
10.1080/17480930.2024.2318132
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Using mining waste for CO2 sequestration presents a promising solution for managing waste and reducing greenhouse gas emissions. This article provides a comprehensive overview of established CO2 sequestration methods that can be applied to mining waste eligible for such application. Three techniques were considered: 1) passive mineral carbonation; 2) a nature-based solution (NBS); and 3) carbon capture, utilisation, and storage (CCUS). Passive mineral carbonation involves exposing mining waste rich in Ca and Mg silicates to atmospheric CO2. NBS explores the reclamation of disposal areas, estimating the carbon sequestration by topsoil, organic amendments, and revegetation. CCUS presents some storage possibilities with CO2 injection into waste piles and utilisation by incorporating waste and CO2 into cement products. Furthermore, an innovative proposal for injecting CO2 into surface and underground coal mining waste disposal areas was described as a potential action. The strategies presented in this article can be considered to offset CO2 emissions from mining projects while also contributing to waste management and more sustainable production.
引用
收藏
页码:425 / 441
页数:17
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