摘要
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.
出处
《Rare Metals》
SCIE
EI
CAS
CSCD
2023年第3期1056-1060,共5页
稀有金属（英文版）
基金
financially supported by the National Key Project of Scientific and Technical Support Program of China(No.2012BAC02B01)
the National Natural Science Foundation of China(Nos.U1360202,51472030 and 51502014)
the Fundamental Research Funds for the Central Universities(Nos.FRF-TP15-050A2,and FRF-TP-16-027A3)
Innovation project of Yunnan Province New Material Preparation and Processing Key Laboratory(No 2016cx05)
the China Postdoctoral Science Foundation Funded Project(No.2014M560885)。
