Arsenic (As), a toxicant, present in flue dust, tailings, and mine drainages generated from mineral processing and smelting processes represents high environmental risk due to its high mobility. Around 42–50% As is found in flue dust in the form of As₂O₃. The vitrification of As results in the formation of stable inert glass material and supposed to reduce the risk of As release to the environment. In this study, a glass material produced by vitrification of As bearing flue dust via DST GlassLock™ Process was received from Dundee Sustainable Technologies, Canada and was subjected for As stability assessment using United States Environmental Protection Agency (EPA) leaching methods-1311,1312,1313,1314,1315 and 1316. The released arsenic concentration was found to be less than the recommended TCLP hazardous waste limit for arsenic i.e., 5 mg/L in most of the test conditions. The experimental data were analyzed using LeachXS Lite™, a data management software that showed the goodness of the DST GlassLock™ Process for As stabilization and safe landfill deposition of the resulting product.

矿物加工和冶炼过程中产生的烟尘，尾矿和矿井排水中存在的砷（As）是一种有毒物质，由于其高迁移率而具有很高的环境风险。在烟道粉尘中以As ₂ O ₃的形式存在约42–50％的As。砷的玻璃化导致形成稳定的惰性玻璃材料，并应减少砷向环境中释放的风险。在这项研究中，从加拿大邓迪可持续技术公司获得了通过DST GlassLock™工艺将含砷烟道粉尘玻璃化的玻璃材料，并使用美国环境保护局（EPA）淋溶方法对其进行了砷稳定性评估-1311,1312。 ，1313、1314、1315和1316。发现释放的砷浓度低于建议的TCLP有害砷限量建议限值，即在大多数测试条件下为5 mg / L。使用LeachXS Lite™（一种数据管理软件）对实验数据进行了分析，该软件显示了DST GlassLock™工艺对于As稳定化和最终产品的安全垃圾填埋的好处。