Abstract
Asbestos is a human carcinogen that causes diseases, such as lung cancer and malignant mesothelioma. In Korea, approximately 1.23 × 109 kg of asbestos raw materials was imported for about 30 years. More than 80% of this were used as building material, such as interior materials and ceiling materials. Among the manufactured asbestos-containing materials, the closest product to the human body is asbestos-tex, used as ceiling material. In this study, asbestos contained in asbestos-tex was transformed into a shape that is physically safe for the human body through mineral carbonation and the results were verified through the analysis of airborne asbestos concentrations. We found that asbestos-tex powder in a buffer solution at 100 °C and at partial CO2 pressures of greater than 10 MPa transformed its constituent chrysotile asbestos moiety ((Mg3Si2O5(OH)4) into magnesite (MgCO3). Consequently, the needle-shaped asbestos fibers (diameters ≤ 3 µm) were converted to an angular rod-shaped mineral (diameters > 5 µm) that is safe for humans.
Funder
Ministry of Land, Infrastructure and Transport of Korean government
Subject
Building and Construction,Civil and Structural Engineering,Architecture
Reference31 articles.
1. The WHO/EURO man-made mineral fiber reference scheme. By the WHO/EURO Technical Committee for Monitoring and Evaluating MMMF.
2. Exposure to asbestos and respiratory abnormality: The influence of fibre type and nature of exposure;Becklake,1980
3. The Worldwide Pandemic of Asbestos-Related Diseases
4. Global Use of Asbestos and the Incidence of Mesothelioma
5. Internalization of Libby Amphibole Asbestos and Induction of Oxidative Stress in Murine Macrophages;David;Toxicol. Sci.,2007
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献