文档介绍：Ultrasonic Regeneration of Granular Activated
Carbon Used in Water Treatment
Jiongyuan LU 1,2, Sanfan WANG 1,2
1The School of Environmental and Municipal Engineering, 2Engineering Research Center for Cold and Arid Regions
Lanzhou Jiaotong University Water prehensive Utilization,
Lanzhou, China Ministry of Education, China
Lujy9527@ Lanzhou, China

Abstract—To evaluate the feasibility of ultrasonic regeneration of water molecules can be posed and produce free radicals
granular activated carbon (GAC) used in wastewater treatment, with a strong oxidization under this condition.
we used ultrasound to regenerate GAC which was used to
adsorbed low concentration sewage. The ultrasound with One of promising methods as an alternative to conventional
different power, frequency and irradiation time was used to regeneration of AC is ultrasonic regeneration. A majority of
regenerate GAC which treated sewage with the concentration of AC adsorptions belong to physical adsorption in terms of its
about 25mg/L. The experimental results indicate that when the type, it is exothermal reaction. Consequently the AC can be
power was 120W, the frequency was 36KHz and the irradiation regenerated from just putting enough energy which could make
time was 15mins, the GAC regeneration effect by ultrasound was the adsorbate desorption. In theory, any method that can