scholarly journals Propellant Shelf-life Extension by Surface-modified Activated Carbon Fiber

2011 ◽  
Vol 49 (4) ◽  
pp. 443-448 ◽  
Author(s):  
Keun Sig Yoon ◽  
Young Seak Lee ◽  
Seung Kon Ryu
1992 ◽  
Vol 26 (3-4) ◽  
pp. 665-671 ◽  
Author(s):  
K. Kutics ◽  
M. Suzuki

Activated carbon fiber (ACF) was used as a model of commercial activated carbons to examine the effect of surface chemistry on the attachment behavior of bacterial biomass. Surface acidity was found to enhance the biomass-ACF interaction. When ACFs were applied as biomass support media in a continuous stirred tank reactor, surface acidity of the carbon resulted in faster biomass growth in the start-up phase. The start-up phase was simulated by a simple biomass attachment kinetics model. Experimental and calculated data show a reasonable agreement, with the exception of the hydrogenated specimen, which was interpreted by assuming that the hydrogen-reduced surface is highly reactive and then may undergo oxidation in the initial phase of operation so that the adsorption characteristics are altered.


2019 ◽  
Vol 146 ◽  
pp. 351-361
Author(s):  
Xiaocai Yu ◽  
Hang Yang ◽  
Jinghua Liu ◽  
Liping Wang ◽  
Meichen Gu

2020 ◽  
Vol 12 (10) ◽  
pp. 3986
Author(s):  
Xianzhen Li ◽  
Yue Hu ◽  
Diao She ◽  
Wei-Bo Shen

As an antibiotic, Norfloxacin (NOR) is widely found in the water environment and presents considerable harm to human beings. At present, the preparation of removal materials is complicated, and the removal efficiency is not high. The adsorption effect of modified activated carbon fiber felt (MACFF) electrosorption and its influencing factors on NOR were studied. Activated carbon fiber felt (ACFF) was modified with 20% nitric acid, and the ACFFs were characterized by SEM, TEM, and FTIR both before and after modification. The optimal working conditions for electrosorption with an MACFF electrode were as follows: the voltage was 1.0 V, the pH was 6, and the plate spacing was 10 mm. The maximum adsorption capacity of the MACFF for NOR was 128.55 mg/g. Model fitting showed that pseudo-second-order kinetic model and Langmuir model were more suitable for explaining this adsorption process. In addition, this study found that, with 20% nitric acid as the regeneration liquid and under the reverse charging method, the regeneration rate of the MACFF electrode was maintained at approximately 96% and the regeneration was good, therefore, this technology can not only save operation costs but also has good development prospects in sewage treatment.


2008 ◽  
Vol 16 (5) ◽  
pp. 521-526 ◽  
Author(s):  
Fen-Yun Yi ◽  
Xiao-Dan Lin ◽  
Shui-Xia Chen ◽  
Xiao-Qun Wei

Sign in / Sign up

Export Citation Format

Share Document