PROMOTION OF BIO-AUGMENTATION EFFECT BY DENITRIFYING SULFIDE REMOVAL PROCESS WITH FILLER OPTIMIZED

GAO Shuang; LI Zhiling; WANG Aijie; HUANG Cong

doi:10.13205/j.hjgc.202204005

Volume 40 Issue 4

Apr. 2022

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GAO Shuang, LI Zhiling, WANG Aijie, HUANG Cong. PROMOTION OF BIO-AUGMENTATION EFFECT BY DENITRIFYING SULFIDE REMOVAL PROCESS WITH FILLER OPTIMIZED[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(4): 29-34,70. doi: 10.13205/j.hjgc.202204005

Citation:

GAO Shuang, LI Zhiling, WANG Aijie, HUANG Cong. PROMOTION OF BIO-AUGMENTATION EFFECT BY DENITRIFYING SULFIDE REMOVAL PROCESS WITH FILLER OPTIMIZED[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(4): 29-34,70. doi: 10.13205/j.hjgc.202204005

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PROMOTION OF BIO-AUGMENTATION EFFECT BY DENITRIFYING SULFIDE REMOVAL PROCESS WITH FILLER OPTIMIZED

doi: 10.13205/j.hjgc.202204005

1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China;
2. Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China

Received Date: 2021-09-10
Available Online: 2022-07-06

Abstract

Abstract

The promotion of bio-augmentation by filler in a denitrifying sulfide removal process was realized by adding the bacterial agent to regulate the core functional flora, and the efficiency of the denitrification and desulfurization process were improved. It was revealed that the application of filler increased the efficiency of elemental sulfur generation to about 1.5 times of the control group. The dominant bacteria in the biofilm on the filler surface were Pseudomonas and Azoarcus. The combined effect of filler and bacterial agent increased the efficiency of elemental sulfur generation to twice of the control group, and then the dominant bacteria in the biofilm on the filler after bio-augmentation were Pseudomonas and Arcobacter. Expression of sulfur oxidation functional genes was strengthened by bio-augmentation. The artificially added Pseudomonas sp.gs1 improved the impact load resistance of the biofilm on the surface of the filler, and the elemental sulfur generation rate was quickly restored after the impact.
- filler,
- bio-augmentation,
- denitrifying sulfide removal process,
- complex carbon source,
- core functional bacteria

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References(19)

References

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