An Ultrasound Catalyzed Ozone Oxidation Process Feasibility Study for the Destruction of TNT and Other Explosives in Aqueous Solution.

1982 ◽  
Author(s):  
Raymond A. Sierka
2019 ◽  
Author(s):  
Chem Int

The high energy radiation overcome the bonding of solute in a solution and H2O2 acts as an oxidizing agent and generates a free radical in the solution which results in photo-degradation by converting the solute in to simple form and resultantly, colored substance under the effect of photo-degradation becomes colorless. The photo-degradation of monoazo dye Blue 13 in an aqueous solution was investigated using a laboratory scale UV lamp in the presence of H2O2 and for maximum degradation of dye, the independent parameter UV power, UV exposure time, pH and H2O2 concentration were optimized. It was found that neither UV in the presence of H2O2 is able to degrade Blue 13 under optimum condition. The results revealed that the use of both UV and H2O2 have pronounced effect on the discoloration of dyes which could be used for management of textile effluents contain waste dyes.


Author(s):  
Mahbubor Rahman ◽  
Tuba DEMIREL ◽  
Ismail KARACAN

Thermal oxidation of polyacrylonitrile (PAN) fibers was accomplished at temperatures up to 250°C for different oxidation times. Chemical integration of PAN fibers with an aqueous solution of ammonium persulfate was performed before starting thermal oxidation. The results recommend that ammonium persulfate integration enhanced the oxidation reactions of the PAN fibers and resulting in enhanced thermal stability. Ammonium persulfate impregnation followed by the oxidation process in the air environment leads to significant deviations in the characteristics of PAN fibers. To perform structural characterization of the raw and ammonium persulfate (APS) incorporated and stabilized samples, XRD, IR-spectroscopy, TGA was executed in this study. Investigation of the XRD and infrared spectroscopy outcomes recommended quick aromatization reactions with growing oxidation periods. The TGA traces indicated a comparative enhancement in the thermal stability of the PAN fibers by the increased carbon yield with the rise of the oxidation time. The overall findings recommend that ammonium persulfate incorporation was very influential in stimulating the oxidation process.


2019 ◽  
Vol 27 (1) ◽  
pp. 812-822 ◽  
Author(s):  
Suyun Xu ◽  
Ning Yan ◽  
Minghao Cui ◽  
Hongbo Liu

2020 ◽  
Vol 186 ◽  
pp. 116314 ◽  
Author(s):  
Gregory P. Horne ◽  
Peter R. Zalupski ◽  
Dayna L. Daubaras ◽  
Cathy Rae ◽  
Stephen P. Mezyk ◽  
...  

2021 ◽  
Vol 283 ◽  
pp. 128758 ◽  
Author(s):  
Ahmer Ali Siyal ◽  
Muhammad Rashid Shamsuddin ◽  
Aaron Low

2017 ◽  
Vol 38 ◽  
pp. 681-692 ◽  
Author(s):  
Yongjun Shen ◽  
Qihui Xu ◽  
Rongrong Wei ◽  
Jialing Ma ◽  
Yi Wang

2014 ◽  
Vol 155 ◽  
pp. 167-173 ◽  
Author(s):  
Bruna Klein ◽  
Nathan Levien Vanier ◽  
Khalid Moomand ◽  
Vânia Zanella Pinto ◽  
Rosana Colussi ◽  
...  

2018 ◽  
Vol 40 (5) ◽  
pp. 385-391 ◽  
Author(s):  
Thaís Helena de Oliveira Norte ◽  
Rafaela Brito Portela Marcelino ◽  
Fernando Henrique Alves Medeiros ◽  
Renata Pereira Lopes Moreira ◽  
Camila Costa Amorim ◽  
...  

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