光合细菌强化二级流化床工艺处理焦化废水的研究

孔秀琴; 赵祥

环境工程学报

孔秀琴, 赵祥. 光合细菌强化二级流化床工艺处理焦化废水的研究[J]. 环境工程学报, 2009, 3(2): 263-267.

引用本文:

孔秀琴, 赵祥. 光合细菌强化二级流化床工艺处理焦化废水的研究[J]. 环境工程学报, 2009, 3(2): 263-267.

Kong Xiuqin, Zhao Xiang. Study on treatment of coking wastewater using process of photosynthetic bacteria enhanced two-stage of fluidized beds[J]. Chinese Journal of Environmental Engineering, 2009, 3(2): 263-267.

Citation:

Kong Xiuqin, Zhao Xiang. Study on treatment of coking wastewater using process of photosynthetic bacteria enhanced two-stage of fluidized beds[J]. Chinese Journal of Environmental Engineering, 2009, 3(2): 263-267.

光合细菌强化二级流化床工艺处理焦化废水的研究

孔秀琴¹,
赵祥¹

1.
兰州理工大学石油化工学院，兰州 730050
基金项目:
甘肃省自然科学基金(B)资助项目(3ZS042-B25-006)
中图分类号: X703.1

Study on treatment of coking wastewater using process of photosynthetic bacteria enhanced two-stage of fluidized beds

Kong Xiuqin¹,
Zhao Xiang¹

1.
College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050
Fund Project:

摘要: 采用厌氧酸化加二级流化床组合工艺处理焦化废水。一级反应器内光合细菌与兼性厌氧菌处于共生状态，二级反应器内光合细菌与亚硝酸细菌处于共生状态。一级反应器内光合细菌有充分的小分子有机酸可降解并形成二次酸化，在二级反应器内完成进一步降解。结合反应条件：温度，pH，DO和基质浓度等，将二级反应器内硝化反应控制在亚硝化阶段，有效地保证了废水中碳源的利用。稳定运行了60 d，结果显示，出水COD和NH3-N浓度分别为105～135 mg/L和14～20 mg/L，去除率分别稳定在90.3%～92.5%和92%～95%。TN去除率稳定在83%～86%。酚、氰化物和BOD5的去除率均在95%以上。
- 焦化废水 /
- 光合细菌 /
- 共生 /
- 短程硝化反硝化
Abstract: The process of anaerobic acidification with fluidized beds was adopted to treat coking wastewater. The intergrowth of photosynthetic bacteria and hydrolyticacidogenic bacteria was in the first reactor,and the intergrowth of photosynthetic bacteria and nitrite bacteria was in the second reactor. After the abundant low-molecule weight organic acid decreased by photosynthetic bacteria and macromolecule organic matter secondhydrolyzed in the first reactor, the second treatment was completed in the second reactor. With some conditions as temperature、pH、DO、concentration of substrate etc, short-cut nitrification was achieved in the second reactor so that the carbon source was used effectively. The results from the steady run after two months were analysed, and the concentrations of effluent COD and NH3-N were 105～135 mg/L and 14～20 mg/L respectively, with the removal rates of 90.3%～92.5% and 92%～95%. The removal rate of TN was the range of 83%～86%, the removal rates of phenol、cyanide and BOD5 were more than 95%.
- coking wastewater /
- photosynthetic bacteria /
- intergrowth /
- short-cut nitrification and denitrification

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孔秀琴, 赵祥. 光合细菌强化二级流化床工艺处理焦化废水的研究[J]. 环境工程学报, 2009, 3(2): 263-267.

引用本文:

孔秀琴, 赵祥. 光合细菌强化二级流化床工艺处理焦化废水的研究[J]. 环境工程学报, 2009, 3(2): 263-267.

Citation:

光合细菌强化二级流化床工艺处理焦化废水的研究

孔秀琴¹,
赵祥¹

1. 兰州理工大学石油化工学院，兰州 730050

收稿日期: 2008-05-27

基金项目:

甘肃省自然科学基金(B)资助项目(3ZS042-B25-006)

关键词:

摘要: 采用厌氧酸化加二级流化床组合工艺处理焦化废水。一级反应器内光合细菌与兼性厌氧菌处于共生状态，二级反应器内光合细菌与亚硝酸细菌处于共生状态。一级反应器内光合细菌有充分的小分子有机酸可降解并形成二次酸化，在二级反应器内完成进一步降解。结合反应条件：温度，pH，DO和基质浓度等，将二级反应器内硝化反应控制在亚硝化阶段，有效地保证了废水中碳源的利用。稳定运行了60 d，结果显示，出水COD和NH3-N浓度分别为105～135 mg/L和14～20 mg/L，去除率分别稳定在90.3%～92.5%和92%～95%。TN去除率稳定在83%～86%。酚、氰化物和BOD5的去除率均在95%以上。

English Abstract

Study on treatment of coking wastewater using process of photosynthetic bacteria enhanced two-stage of fluidized beds

Kong Xiuqin¹,
Zhao Xiang¹

1. College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050

Received Date: 2008-05-27

Fund Project:

Keywords:

coking wastewater /
photosynthetic bacteria /
intergrowth /
short-cut nitrification and denitrification

Abstract: The process of anaerobic acidification with fluidized beds was adopted to treat coking wastewater. The intergrowth of photosynthetic bacteria and hydrolyticacidogenic bacteria was in the first reactor,and the intergrowth of photosynthetic bacteria and nitrite bacteria was in the second reactor. After the abundant low-molecule weight organic acid decreased by photosynthetic bacteria and macromolecule organic matter secondhydrolyzed in the first reactor, the second treatment was completed in the second reactor. With some conditions as temperature、pH、DO、concentration of substrate etc, short-cut nitrification was achieved in the second reactor so that the carbon source was used effectively. The results from the steady run after two months were analysed, and the concentrations of effluent COD and NH3-N were 105～135 mg/L and 14～20 mg/L respectively, with the removal rates of 90.3%～92.5% and 92%～95%. The removal rate of TN was the range of 83%～86%, the removal rates of phenol、cyanide and BOD5 were more than 95%.

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光合细菌强化二级流化床工艺处理焦化废水的研究

Study on treatment of coking wastewater using process of photosynthetic bacteria enhanced two-stage of fluidized beds

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光合细菌强化二级流化床工艺处理焦化废水的研究

English Abstract

Study on treatment of coking wastewater using process of photosynthetic bacteria enhanced two-stage of fluidized beds

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