石油焦基高比表面积活性炭对水中Pb2+离子吸附性能的研究

以石油焦基为原料，采用KOH活化法制取高比表面积活性炭。考察了高比表面积活性炭吸附水中Pb^2 时，pH值、Pb^2 浓度、吸附时间和活性炭用量等因素对Pb^2 吸附量和水中Pb^2 残余浓度的影响。实验结果表明：高比表面积活性炭在适宜条件下对Pb^2 具有较大的吸附量和良好的再生效果。为高比表面积活性炭在废水中的实际应用提供了理论依据。

Study of the Absorption Effect of High-specific Area Activated Carbon on Pb2+ in Aqueous Solution

The high-specific surface area carbon, which was used as adsorbent to adsorb Pb~(2+) in aqueous solution, was prepared from petroleum coke, and activated by KOH. The effects of pH value, concentration of Pb~(2+), adsorption time and dosage of activated carbon on absorption capacity of Pb~(2+) and residual concentration in aqueous solution were investigated systematically. The results showed that the high-specific surface area activated carbon has excellent absorption capacity and can easily be regenerated under suitable absorption conditions. This has laid the theoretical foundation theory for its application in waste water.