The use of mine wastes as alternative materials to finite natural resources in the construction sector is a sustainable solution to better protect the environment and manage solid wastes. This paper aims to investigate the integrated valorization of silver mine tailings (RST) through the recovery of residual silver by froth flotation and ecofriendly use of the resulting treated tailings (SMT) to manufacture ceramic materials. Treated silver mine tailings (SMT) sample was mixed with natural clays in different proportions to prepare the desired formulations. Samples were then pressed, dried and sintered at various temperatures (900, 950, 1,000 and 1,050 °C) for 3 h with a heating rate of 2 °C/min. The mineralogical compositions, physical, mechanical, microstructural and environmental properties of the sintered ceramics were assessed. The main results show that the mechanical resistance of sintered ceramics decreases with the addition of SMT. However, increasing the sintering temperature allows to improve the mechanical performance of ceramics. Also, water absorption was improved with the increase of sintering temperature due to the decrease of open pores. The leaching behavior of pollutants from sintered ceramics was also evaluated according to the Toxicity Characteristic Leaching Procedure (TCLP). The released concentrations of As, Ba, Cd, Cr, Cu, Mo and Pb were below the requested limits for non-hazardous waste set by US-EPA regulations.

在建筑行业使用矿山废料作为有限自然资源的替代材料，是更好地保护环境和管理固体废料的可持续解决方案。本文旨在通过泡沫浮选回收残留银和生态友好地使用所得处理尾矿 (SMT) 来制造陶瓷材料，从而研究银矿尾矿 (RST) 的综合增值。将处理过的银尾矿 (SMT) 样品与不同比例的天然粘土混合以制备所需的配方。然后将样品压制、干燥并在不同温度（900、950、1,000 和 1,050 °C）下以 2 °C/min 的加热速率烧结 3 小时。评估了烧结陶瓷的矿物成分、物理、机械、显微结构和环境特性。主要结果表明烧结陶瓷的机械阻力随着SMT的加入而降低。然而，提高烧结温度可以提高陶瓷的机械性能。此外，由于开孔减少，吸水率随着烧结温度的升高而提高。污染物从烧结陶瓷中的浸出行为也根据毒性特征浸出程序 (TCLP) 进行评估。As、Ba、Cd、Cr、Cu、Mo 和 Pb 的释放浓度低于美国环保署规定的非危险废物要求的限值。由于开孔减少，吸水率随着烧结温度的升高而提高。污染物从烧结陶瓷中的浸出行为也根据毒性特征浸出程序 (TCLP) 进行评估。As、Ba、Cd、Cr、Cu、Mo 和 Pb 的释放浓度低于美国环保署规定的非危险废物要求的限值。由于开孔减少，吸水率随着烧结温度的升高而提高。污染物从烧结陶瓷中的浸出行为也根据毒性特征浸出程序 (TCLP) 进行评估。As、Ba、Cd、Cr、Cu、Mo 和 Pb 的释放浓度低于美国环保署规定的非危险废物要求的限值。