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The Self-sustained High temperature Synthesis (SHS) technology as novel approach in the management of asbestos waste
Journal of Environmental Management ( IF 8.7 ) Pub Date : 2017-09-21 , DOI: 10.1016/j.jenvman.2017.09.019
Laura Gaggero , Maurizio Ferretti

The SHS technique was experimented in chrysotile breakdown. By means of two reactions such as Mg3Si2O5(OH)4 + Fe2O3 + 3 Mg and 2Mg3Si2O5(OH)4 + Fe3O4 + 4 Mg the chrysotile was completely converted into forsterite-rich olivine. Different mixtures of hematite + Mg and magnetite + Mg were tested with chrysotile to establish the maximum chrysotile amount in order to allow the reaction. In comparison with conventional thermal treatments, the SHS process is characterized by a fast reaction, needs low activation energy and the apparatus is simple. For these reasons, the asbestos neutralisation is carried out with positive balance of time and costs of the process. Furthermore, the combustion product can be re-used as secondary material.



中文翻译:

自持高温合成(SHS)技术是石棉废物管理中的新方法

SHS技术在温石棉分解中进行了实验。通过两个反应,例如Mg 3 Si 2 O 5(OH)4  + Fe 2 O 3  + 3 Mg和2Mg 3 Si 2 O 5(OH)4  + Fe 3 O 4 + 4 Mg温石棉完全转化为富含镁橄榄石的橄榄石。用温石棉测试赤铁矿+ Mg和磁铁矿+ Mg的不同混合物以建立最大温石棉量,以便进行反应。与常规热处理相比,SHS工艺具有反应速度快,活化能低,设备简单的特点。由于这些原因,石棉中和是在时间和工艺成本之间取得积极平衡的情况下进行的。此外,燃烧产物可以作为辅助材料重复使用。

更新日期:2017-09-21
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