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Power Mg(OH) 2 was used to remove As(III) from arsenic-bearing wastewater. Results showed that Mg(OH) 2 had strong adsorptive property on As(III) ions with its adsorption capacity of 4.04mg/L; Mg(OH) 2 adsorption on As(III) fit well with Langmuir Isotherm equation; As(III) removal rate increased with vibration time and input quantity of adsorbents while decreased as pH increased...
Adsorption experiments of vapor-phase elemental mercury (Hg0) were carried out by using modified bentonite/chitosan in a laboratory-scale fixed-bed reactor. VM3000 online mercury analyzer was applied to detect the inlet and outlet mercury concentrations. The characterizations of the sorbents were analyzed using the method of nitrogen (N2) adsorption-desorption, Thermal gravimetric analysis (TGA) and...
In this study, the influence of pyrolysis temperature (T) in the range of 200-900??C on the characteristics of porosity in biomass chars was investigated. The samples were characterized by N2 isothermal adsorption/desorption method and scanning electron microscopy (SEM). The results indicated that pyrolysis temperature had a notable impact on the pore structure and morphology of biomass char. Between...
Adsorption experiments of vapor-phase elemental mercury (Hg0) were carried out by using two types of chemically modified CTS/SiO2 sorbents in a laboratory-scale fixed-bed reactor. The characterizations of the sorbents were analyzed using the methods of nitrogen (N2) adsorption/desorption, field-scanning electron microscope (FSEM), Fourier transform infra-red spectroscopy (FTIR) and X-ray diffraction...
Adsorption experiments of vapor-phase elemental mercury were carried out using bromine and iodine modified Kaolin, Zeolite, Bentonite and Chitosan in a laboratory-scale fixed-bed reactor. VM3000 online mercury analyzer was applied to detect the inlet and outlet Hg0 concentrations. The characterizations of the sorbents were analyzed using Fourier transform infra-red spectroscopy. The results indicated...
The structure evolution of maize straw (MS) particles during pyrolysis was studied. The samples were characterized by ultimate analysis, Fourier transform infrared spectroscopy (FTIR), true density measurement and N2 isothermal adsorption/desorption method. The H/C and O/C atomic ratios decreased from 1.59 and 0.84 in the raw MS to 0.21 and 0.33 at 1173 K respectively, which implied that the char...
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