Intensification of iron removal rate during oxygen leaching through gas-liquid mass-transfer enhancement

2001 ◽  
Vol 32 (5) ◽  
pp. 961-963 ◽  
Author(s):  
K. S. Geetha ◽  
C. D. Surender
2019 ◽  
Vol 59 (9) ◽  
pp. 4048-4057 ◽  
Author(s):  
Chencan Du ◽  
Peicheng Wang ◽  
Yunpeng Hu ◽  
Jisong Zhang ◽  
Guangsheng Luo

2016 ◽  
Vol 145 ◽  
pp. 233-244 ◽  
Author(s):  
P.W.A.M. Wenmakers ◽  
J.A.A. Hoorn ◽  
J.A.M. Kuipers ◽  
N.G. Deen

2019 ◽  
Vol 55 (8) ◽  
pp. 2061-2072 ◽  
Author(s):  
Jia-Zong Jiang ◽  
Song Zhang ◽  
Xue-Long Fu ◽  
Lei Liu ◽  
Bao-Min Sun

2012 ◽  
Vol 66 (9) ◽  
pp. 1914-1922 ◽  
Author(s):  
Takuro Kobayashi ◽  
Kai-Qin Xu ◽  
Yu-You Li ◽  
Yuhei Inamori

Biological desulfurization using a bubble column reactor was investigated in a continuous biogas treatment. Rapid biogas circulation between the digester and the bubble column for biological desulfurization was used to stimulate the gas–liquid mass transfer of H2S. A positive correlation between the biogas circulation rate and H2S removal rate was observed. Moreover, the increase in the circulation rate stimulated the O2 mass transfer, eventually translating into an increase in sulfate production from the oxidation of H2S. Throughout the continuous experiment, the reactor retained sufficient levels of sulfide-oxidizing bacteria. A comparison of the results of the continuous biogas treatment and batch tests suggests that the gas–liquid mass transfer rate of H2S was the rate-limiting step in the biological desulfurization in the reactor, indicating that the mass transfer efficiency of H2S needs to be improved to enhance the desulfurization performance.


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