标题: Co-preparation of secondary aluminium ash-based ceramics from multi-solid wastes: Thermoanalytical kinetics and contaminant migration patterns
作者: Li, A (Li, An); Zeng, TY (Zeng, Tianyu); Li, JH (Li, Jiahao); Lan, JR (Lan, Jirong); Luo, T (Luo, Teng); Wang, HJ (Wang, Haojie); Zhang, SS (Zhang, Shanshan); Zhou, M (Zhou, Min); Hou, HB (Hou, Haobo)
来源出版物: CERAMICS INTERNATIONAL 卷: 51 期: 9 页: 11309-11321 DOI: 10.1016/j.ceramint.2024.12.547 Published Date: 2025 APR
摘要: Addressing the pressing dual challenges of pollution control and resource utilization of hazardous wastes, such as secondary aluminum ash (SAA) and municipal solid waste incineration fly ash (MSWIFA), this study investigates the synthesis of high-performance porous ceramics from SAA, MSWIFA and other industrial wastes. The method not only optimizes waste management but also effectively enhances the containment of pollutants. The influence of phase transitions, physical performances, thermoanalytical kinetics, pollutant migration, and the structural integrity of the resultant secondary aluminum ash-based porous ceramics (SAABPC) was systematically evaluated. The optimized formulation, with a 3:5 MSWIFA to SAA ratio and sintered at 1175 degrees C, achieved a compressive strength of 7.34 MPa, porosity of 60.33 %, and a bulk density of 0.87 g/cm3. Sintering gas analysis confirmed the potential of SAA to act as a self-foaming agent through the oxidation of AlN, releasing N2. The leaching tests demonstrated effective immobilization of Pb2+, Cr3+, Ni2+, Cu2+, and Zn2+, thereby significantly mitigating the environmental risks associated with heavy metals. The study underscores the robustness of the SAABPC silicate network in immobilizing heavy metal ions, and provides a sustainable solution for the synergistic safe disposal and materialisation of hazardous waste from multiple sources.
作者关键词: Secondary aluminum ash; Porous ceramic; Thermoanalytical kinetics; Low-temperature sintering; Heavy metals immobilization
KeyWords Plus: TEMPERATURE; REACTIVITY; CEMENT; SLUDGE; DROSS; XPS
地址: [Li, An; Zeng, Tianyu; Li, Jiahao; Wang, Haojie; Zhang, Shanshan; Zhou, Min; Hou, Haobo] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China.
[Zeng, Tianyu; Luo, Teng; Hou, Haobo] Wuhan Univ, Zhaoqing Inst Resources & Environm Technol, Zhaoqing 526200, Guangdong, Peoples R China.
[Lan, Jirong] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China.
通讯作者地址: Zeng, TY; Hou, HB (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China.
电子邮件地址: [email protected]; [email protected]
影响因子：5.1
