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Mycelium is a kind of residue which is filtrated and extracted from the microbial fermentation process in the pharmaceutical industry. Some samples of mycelium were taken from North China Pharmaceutical Factory. In order to investigate their physical and chemical characteristics, with the gravimetric method, atomic absorption, K2SiF6 volumetric method, EDTA volumetric method, copper titration method...
The aim of this work was to research the preparation of eco-cementing material in utilization of high-volume steel slag and granulated blast-furnace slag (GBFS) adding with appropriate amount of semidry flue gas desulphurization (SFGD) ash. The two factors ,specific surface area and SFGD ash content, which influence the mechanical properties of cement were also deeply discussed. The results show that...
Leaching of six elements-namely, Cu, Zn, Pb, Cd, Ni, and F from two semidry flue gas desulfurization ash samples and one waste gypsum sample collected from two different iron and steel plants and one power plant in Hebei, has been reported. Various extracting agents were used to conduct leaching experiments for desulfurization ashes. The dissolution of trace elements contained in the ashes were determined...
The present study is focused on clarifying the influence of semidry flue gas desulfurization (SFGD) ash in replacing natural gypsum (NG) in the production of ordinary Portland cement (OPC). Clinker, 3 wt% of Slag and 6-12 wt% of modified SFGD ash were ground in a laboratory ball mill to produce cement. The properties of SFGD ash were investigated via chemical composition analysis, Scanning electron...
Some samples of ash were taken from a Semi-dry FGD dealing with sinter gas which was released from iron industry. Scanning electron microscope (SEM), X-ray diffraction (XRD) and Fourier Transform Infrared Spectrometer (FTIR) were employed to identify the samples in order to investigate their physical and chemical characteristics. The result shows that: this kinds of semi-dry FGD ash is stable, and...
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