THE INFLUENCE OF GRANULAR ACTIVATED CARBON(GAC)TREATED BY DBD
Activated carbon as a well solid adsorbent has been used to remove many kinds of contaminants exist in air and water.But when the activated carbon adsorbs too much，it will lose adsorbility.Waste activated carbon will not only pollute environment but also make resource waste if not disposal properly.So according to the study of surface functional groups，total acidic，pHpzc，and adsorption capability of GAC influenced by discharge parameters and discharge time，the effect mechanism of DBD plasma on activated carbon was discussed in this paper. The plasma was produced by plates DBD reactor with 200 Hz high voltage AC power supply,and the granular activated carbon laid between two electrodes.The results showed input voltage and DBD treatment time affected the phenol adsorption of GAC，and the optimal input voltage and DBD treatment time for enhancing adsorbility of GAC.DBD treatment also made obvious change for GAC surface-functional groups，while the total acidity enhanced and pHpzc reduced significantly.This experiment provided a foundation for the further step about removing contaminants and waste activated carbon regeneration bv DBD plasma.
DBD granular activated carbon GAC character parameter
Yue Zhang Jie Li Guofeng Li Guangzhou Qu Yan Wu
Institute of Electrostatics and Special Power,Dalian University of Technology,116024 Dalian,China Institute of Electrostatics and Special Power,Dalian University of Technology,116024 Dalian,China;Ke
国际会议
The 6th International Conference on Applied Electrostatics(第六届国际静电应用会议)
上海
英文
120-122
2008-11-03（万方平台首次上网日期，不代表论文的发表时间）