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16.09.2017

Using coal fly ash-based geopolymer to immobilize Cd from lead fuming furnace slag

verfasst von: Bin Guo, Bo Liu, Shen-Gen Zhang

Erschienen in: Rare Metals | Ausgabe 3/2023

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Abstract

Lead fuming furnace slag (LFFS) is a by-product of lead metal production, which is a toxic solid waste according to toxicity characteristic leaching procedure (TCLP) test. It was investigated the feasibility of preparation of geopolymer using coal fly ash (CFA) and LFFS and the immobilization efficiency of Cd in geopolymer. The synthesized geopolymer samples were examined by compressive strength, Fourier transform transmission infrared spectroscopy (FTIR) spectra, X-ray diffraction (XRD) and backscattered electron (BSE) microscope. There is a certain mass ratio (2:3) of the LFFS to the CFA at which the compressive strength of the geopolymeric matrix is the highest. Leaching test shows that Cd in LFFS can be effectively immobilized in the geopolymer structure. Geopolymerization is not only a potential technological solution for reusing LFFS but also an effective immobilization method for LFFS treatment and disposal.

Vorheriger Artikel A semi-analytical method to compute acoustic nonlinearity parameter of Cu, Ag and Au

Nächster Artikel Cathodic process of nickel electrodeposition from ammonia–ammonium chloride solutions

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Titel: Using coal fly ash-based geopolymer to immobilize Cd from lead fuming furnace slag
verfasst von: Bin Guo
Bo Liu
Shen-Gen Zhang
Publikationsdatum: 16.09.2017
Verlag: Nonferrous Metals Society of China
Erschienen in: Rare Metals / Ausgabe 3/2023
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI: https://doi.org/10.1007/s12598-017-0955-0

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