Degradation SO_2 in Aqueous Solution with Desulfuration Bacterium Domesticated from Oxidation Ditch of A City Sewage Treatment Plant

化学工业与工程

Chemcial Industry and Engineering

2010, Vol. 27

Issue (4) :288-293 DOI:

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Degradation SO_2 in Aqueous Solution with Desulfuration Bacterium Domesticated from Oxidation Ditch of A City Sewage Treatment Plant

HUANG Bing1,SHI Zhe2,ZHANG Shi-ling3,AO Yong4(1.Faculty of Environmental Science & Technology,Kunming University of Science and Technology,Kunming 650093,China;2.Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093,China;3.Faculty of Materials and Mechanics,Kunming Metallurgy College,Kunming 650093,China;4.Yunnan Building Materials Academy of Science Research and Design,Kunming 650022,China)

(1.Faculty of Environmental Science & Technology,Kunming University of Science and Technology,Kunming 650093,China;2.Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093,China;3.Faculty of Materials and Mechanics,Kunming Metallurgy College,Kunming 650093,China;4.Yunnan Building Materials Academy of Science Research and Design,Kunming 650022,China

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Abstract A dominant desulfuration bacterium,which were found from oxidation ditch of a city sewage treatment plant by inductive domestication with low concentration SO2 gas,can translate the SO2 in aque-ous solution into SO24-or(and) organic sulfur and fix them in the cell of desulfuration bacterium.The desulfuration bacterium can degrade about 97% SO2 within 10 h,and show possibility in desulfur action from flue gas.The kinetics of the desulfuration bacterium degradation SO2 in aqueous solution showed that the rate to conversion SO2(or SO32-) is first order reaction during 10 ～ 30 ℃,where the rate con-stant is 6.522 × 108 exp(-5 902 /T),the activation energy is 49.07 kJ /mol,and the maximal rate for degradation SO2 is 1 152 mg /(L.h).But the activity of the desulfuration bacterium will be deactivation evidently at above 30 ℃.

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Received 2010-07-15; published 2010-07-15

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HUANG Bing1,SHI Zhe2,ZHANG Shi-ling3,AO Yong4.Degradation SO_2 in Aqueous Solution with Desulfuration Bacterium Domesticated from Oxidation Ditch of A City Sewage Treatment Plant[J] Chemcial Industry and Engineering, 2010,V27(4): 288-293

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