摘要
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Cd(Ⅱ)时,pH值、Cd(Ⅱ)浓度、吸附时间和活性炭用量等因素对Cd(Ⅱ)吸附量和水中Cd(Ⅱ)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Cd(Ⅱ)具有较大的吸附量和良好的再生效果。为HSAAC在废水中的实际应用提供了理论依据。
The high - specific surface area carbon, used as adsorbent to adsorb Cd （ Ⅱ ） in aqueous solution was prepared from petroleum coke and activated by KOH. The effects of pH value, concentration of Cd（ Ⅱ ）, adsorption time and dosage of activated carbon on absorption capacity of Cd（ Ⅱ ） and residual concentration in aqueous solution were investigated systematically. The results show that the high - specific surface area activated carbon has excellent absorption capacity and can be easily regenerated under the suitable absorption conditions. This study provided a theoretical basis for its application in waste water treatment.
出处
《环境科学与管理》
CAS
2007年第2期48-50,共3页
Environmental Science and Management
关键词
高比表面积活性炭
Cd(Ⅱ)
吸附
high - specific surface area activated
carbon
absorption
