This paper presents methods of modifying the active carbon with oxidizing agent and high temperature treatment.The ion exchange capacity of modified active carbon were detected.The active carbon has been amployed as a...This paper presents methods of modifying the active carbon with oxidizing agent and high temperature treatment.The ion exchange capacity of modified active carbon were detected.The active carbon has been amployed as an adsorbent for removing of Cr(Ⅲ) from equeous solution.The effect of removal of Cr(Ⅲ) of the pH of solution and time of adsorption were discussed.In addition,the mechanism of adsorption with modified the active carbon for Cr(Ⅲ) were discussed.展开更多
The hydrolytic polymerization of Cr3+ at relative high concentrations have measured by microcalorimetric method. The thermogram have determined using the 2277 Thermoal Activity Monitor. The heat of reaction (△rHm■),...The hydrolytic polymerization of Cr3+ at relative high concentrations have measured by microcalorimetric method. The thermogram have determined using the 2277 Thermoal Activity Monitor. The heat of reaction (△rHm■), the hydrolysis equilibrium constans (K■) and thermodynamical function (△rGm■、△rSm■) at different temperatures have been calculated.展开更多
文摘This paper presents methods of modifying the active carbon with oxidizing agent and high temperature treatment.The ion exchange capacity of modified active carbon were detected.The active carbon has been amployed as an adsorbent for removing of Cr(Ⅲ) from equeous solution.The effect of removal of Cr(Ⅲ) of the pH of solution and time of adsorption were discussed.In addition,the mechanism of adsorption with modified the active carbon for Cr(Ⅲ) were discussed.
文摘The hydrolytic polymerization of Cr3+ at relative high concentrations have measured by microcalorimetric method. The thermogram have determined using the 2277 Thermoal Activity Monitor. The heat of reaction (△rHm■), the hydrolysis equilibrium constans (K■) and thermodynamical function (△rGm■、△rSm■) at different temperatures have been calculated.
