| 一种利用脱氮硫杆菌的同步脱硫反硝化新工艺研究 |
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| 引用本文： | 王爱杰, ,杜大仲, ,任南琪, ,程翔, ,刘春爽. 一种利用脱氮硫杆菌的同步脱硫反硝化新工艺研究[J]. 中国化学工程学报, 2005, 13(3): 422-425 |
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| 作者姓名： | 王爱杰 杜大仲 任南琪 程翔 刘春爽 |
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| 作者单位： | Department of Environmental Science & EngineeringSchool of Municipal & Environmental Engieering，Harbin Institute of Technology，Harbin 150090，China，Department of Environmental Science & EngineeringSchool of Municipal & Environmental Engieering，Harbin Institute of Technology，Harbin 150090，China，Department of Environmental Science & EngineeringSchool of Municipal & Environmental Engieering，Harbin Institute of Technology，Harbin 150090，China，Department of Environmental Science & EngineeringSchool of Municipal & Environmental Engieering，Harbin Institute of Technology，Harbin 150090，China，Department of Environmental Science & EngineeringSchool of Municipal & Environmental Engieering，Harbin Institute of Technology，Harbin 150090，China |
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| 摘 要： | Thiobacillus denitrificans, a kind of autotrophic facultative bacteria, can oxidize sulfide into elemental sulfur or sulfate when nitrate was adopted as its electron accepter and carbon dioxide as its carbon resource under anoxic or anaerobic environment. In this way, nitrate is converted into nitrogen. In addition, ThiobaciWus denitrificans can accumulate sulfur extracellularly. In this study, in a process of simultaneous desulfurization and denitrification, a strain of Thiobacillus denitriificans is employed as sulfur-producer in the treatment of wastewater containing sulfide and nitrate. The key factors affecting this process are investigated through batch tests. The experimental results indicate that the sulfide concentration and the ratio of sulfide to nitrate (S2-/NO3-) in the influent are the key factors, and their suitable values are suggested to be 5/3 and no more than 300mg·L-1, respectively, in order to achieve high conversion of sulfur.
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| 关 键 词： | 直接脱硫 脱氮作用 硫磺 硫化物 废水处理 |
| 修稿时间： | |
Tentative Study on a New Way of Simultaneous Desulfurization and Denitrification |
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| WANG Aijie,DU Dazhong,REN Nanqi,CHENG Xiang,LIU Chunshuang. Tentative Study on a New Way of Simultaneous Desulfurization and Denitrification[J]. Chinese Journal of Chemical Engineering, 2005, 13(3): 422-425 |
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| Authors: | WANG Aijie DU Dazhong REN Nanqi CHENG Xiang LIU Chunshuang |
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| Affiliation: | Department of Environmental Science & Engineering, School of Municipal & Environmental Engieering, Harbin Institute of Technology, Harbin 150090, China;Department of Environmental Science & Engineering, School of Municipal & Environmental Engieering, Harbin Institute of Technology, Harbin 150090, China;Department of Environmental Science & Engineering, School of Municipal & Environmental Engieering, Harbin Institute of Technology, Harbin 150090, China;Department of Environmental Science & Engineering, School of Municipal & Environmental Engieering, Harbin Institute of Technology, Harbin 150090, China;Department of Environmental Science & Engineering, School of Municipal & Environmental Engieering, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | Thiobacillus denitrificans, a kind of autotrophic facultative bacteria, can oxidize sulfide into elemental sulfur or sulfate when nitrate was adopted as its electron accepter and carbon dioxide as its carbon resource under anoxic or anaerobic environment. In this way, nitrate is converted into nitrogen. In addition, Thiobacillus denitrificans can accumulate sulfur extracellularly. In this study, in a process of simultaneous desulfurization and denitrification, a strain of Thiobacillus denitrificans is employed as sulfur-producer in the treatment of wastewater containing sulfide and nitrate. The key factors affecting this process are investigated through batch tests. The experimental results indicate that the sulfide concentration and the ratio of sulfide to nitrate (S2-/NO-3) in the respectively, in order to achieve high conversion of sulfur. |
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| Keywords: | Thiobacillus denitrificans biological desulfurization sulfur denitrification S2-/NO-3- ratio |
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