THE MODIFICATION OF PAPER INDUCED BY RADIO FREQUENCY AND MICROWAVE PLASMA TREATMENT

Author(s):  
V. V. Azharonok ◽  
I. I. Filatova ◽  
A. P. Dostanko ◽  
S. V. Bordusov ◽  
Yu. S. Shynkevich
1989 ◽  
Vol 43 (7) ◽  
pp. 1153-1158 ◽  
Author(s):  
Yaoming Xie ◽  
Peter M. A. Sherwood

X-ray photoelectron spectroscopy has been used to monitor the surface chemical changes occurring on type II carbon fibers exposed to air, oxygen, and nitrogen plasmas. In all cases the plasmas caused changes in surface functionality, in terms of both C-O and C-N functionality. Prolonged exposure to the plasmas caused loss of surface functionality for air and oxygen plasmas, and extended treatment caused fiber damage. Plasma treatment of fibers promises to be an effective method of fiber treatment.


Lab on a Chip ◽  
2005 ◽  
Vol 5 (10) ◽  
pp. 1173 ◽  
Author(s):  
Alex Y. N. Hui ◽  
Gang Wang ◽  
Bingcheng Lin ◽  
Wing-Tat Chan

2017 ◽  
Vol 789 ◽  
pp. 012033
Author(s):  
I S Miftakhov ◽  
A V Trofimov ◽  
A I Nagmutdinova ◽  
E F Voznesensky ◽  
F S Sharifullin ◽  
...  

2014 ◽  
Vol 97 (5) ◽  
pp. 1379-1382 ◽  
Author(s):  
Mi-Yeon Lee ◽  
Min-Kyung Song ◽  
Jeong-Soo Kim ◽  
Jun-Ho Seo ◽  
Min-Ho Kim

2021 ◽  
Vol 28 (2) ◽  
pp. 97-102
Author(s):  
Yukyeong Lee ◽  
◽  
Mi-Sun Choi ◽  
Eon Byeong Park ◽  
Jeong Seok Oh ◽  
...  

2020 ◽  
Vol 299 ◽  
pp. 1044-1051
Author(s):  
Almaz Kozhonov ◽  
Anvar Samsaliev ◽  
Yulia I. Toporkova

An efficient technology is currently being searched for the processing of aged enrichment gold-containing tailings at the «Solton-Sary» enrichment plant, Kyrgyzstan. In this paper, the effect of microwave-plasma exposure on aged tailings and further gold extraction using froth flotation were investigated. Microwave-plasma treatment of the material was carried out in the presence of the following materials: charcoal, coal/quartz and molybdenum sulfide. Microwave-plasma treatment allowed to improve the quality of flotation concentrates in terms of the gold content from 130 ppm to 227 ppm. The design of plasmatron and methodology of plasma treatment were proposed. The results shown in this paper are valuable for mining organization in terms of searching for new industrial waste processing approaches and for broadening their raw materials base.


2015 ◽  
Vol 9 (7) ◽  
pp. 80 ◽  
Author(s):  
Reni Desmiarti ◽  
Ariadi Hazmi ◽  
Yenni Trianda

A radio-frequency plasma system (RF) was used to investigate the removal of microorganisms from water.Plasma generated by RF radiation can produce active compounds (H•, •OH, H2O2, O3, etc.) that have a highoxidation potential and can kill microorganisms present in water (fecal coliforms and total coliforms). Thefrequency of the plasma system was set to 3.0, 3.3 and 3.7 MHz and applied to river water for 60 minutes. Theresults show that in all runs, the pH of the water produced was in the range from 7.4 to 7.9. The removalefficiencies of fecal coliforms achieved were between 83.75 and 95% and were higher than the removalefficiencies of total coliforms, which were between 82.61 and 93.48%. Meanwhile, the death rate (kD) of fecalcoliforms wasfaster than that of total coliforms. Therefore, the removal of total coliforms is the key to removingmicroorganisms fromwater. RF plasma treatment can be used for treatment of drinking water to decreasemicroorganisms.


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