Evaluation of potassium ferrate activated biochar for the simultaneous adsorption of copper and sulfadiazine: competitive versus synergistic

2021 ◽  
pp. 127435
Author(s):  
Jieru Yan ◽  
Xiaoxue Zuo ◽  
Shengjiong Yang ◽  
Rongzhi Chen ◽  
Tianming Cai ◽  
...  
Keyword(s):  
Potassium Ferrate ◽  
Simultaneous Adsorption ◽  
Activated Biochar

Viral inactivation by potassium ferrate

1995 ◽  
Vol 31 (5-6) ◽  
pp. 165-168 ◽  
Author(s):  
Futaba Kazama
Keyword(s):  
Phosphate Buffer ◽  
Potassium Ferrate ◽  
Sodium Thiosulphate ◽  
Viral Inactivation ◽  
Complete Decomposition ◽  
Kinetics Of ◽  
Oxidative Intermediate

The kinetics of inactivation by potassium ferrate were studied using a bacteriophage, F-specific RNA-coliphage Qβ as a viral model. The inactivation appeared to be expressed by Hom's model in phosphate buffer at pH 6, 7, and 8. The rate of inactivation depended on pH; the lower pH, the faster inactivation observed. To consider the mechanism by which ferrate caused inactivation, the efficiency of inactivation was checked after ferrate decomposition in buffer. Effective inactivation following Hom's model was also observed after the complete decomposition of ferrate ion; however, the efficiency of that inactivation disappeared by the addition of sodium thiosulphate, suggesting that rather long-lived oxidative intermediate was generated by the decomposition of ferrate ion. The intermediate might take part in the inactivation.

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