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- W1983565758 abstract "Chemical and mineral compositions, the surface morphology of steel slag were evaluated in this study. On this basis, treatment effect of acidic Zn 2+ -containing wastewater was investigated using the slag as a water treatment material, and then mechanism of removal Zn 2+ was discussed. The results showed steel slag was a suitable material for treatment of acidic heavy mental wastewater. Under conditions of slag size fraction of -1.2+0.15mm, slag concentration of 30 g∙L -1 , stirring speed of 150rpm for 30 min, removal rate of Zn 2+ was 98.59%, Zn 2+ concentration in wastewater was reduced from 100 mg/L to 1.41 mg/L, and pH value was increased from 2 to 6.4. Filtrate after treatment reached the first discharge standard in integrated wastewater discharge standard (GB8978-1996). Appearance of Zn (OH) 2 diffraction peaks in XRD pattern showed that Zn (OH)2 had covered on steel slag surface, and Zn 2+ removal included four main processes: production of OH- from hydration reaction of a Subscript text ctive calcium silicate in steel slag, generation of Zn (OH) 2 precipitation in wastewater, adsorption and settlement of Zn (OH) 2 on surface of steel slag and removal of Zn (OH) 2 from wastewater by filtration." @default.
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- W1983565758 date "2011-11-01" @default.
- W1983565758 modified "2023-09-25" @default.
- W1983565758 title "Steel Slag as Neutralization-Adsorption Material for Treatment of Acidic Zn<sup>2+</sup> - Containing Wastewater" @default.
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- W1983565758 doi "https://doi.org/10.4028/www.scientific.net/amr.383-390.3416" @default.
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