电极生物膜自养脱氮系统中的电化学作用

杨琳; 方芳; 兰国新; 刘贵强

doi:10.7524/j.issn.0254-6108.2014.06.004

环境化学

电极生物膜自养脱氮系统中的电化学作用

, , ,

杨琳, 方芳, 兰国新, 刘贵强. 电极生物膜自养脱氮系统中的电化学作用[J]. 环境化学, 2014, 33(6): 1033-1037. doi: 10.7524/j.issn.0254-6108.2014.06.004

引用本文:

杨琳, 方芳, 兰国新, 刘贵强. 电极生物膜自养脱氮系统中的电化学作用[J]. 环境化学, 2014, 33(6): 1033-1037. doi: 10.7524/j.issn.0254-6108.2014.06.004

YANG Lin, FANG Fang, LAN Guoxin, LIU Guiqiang. Electrochemical action in the biofilm-electrode autotrophic nitrogen removal system[J]. Environmental Chemistry, 2014, 33(6): 1033-1037. doi: 10.7524/j.issn.0254-6108.2014.06.004

Citation:

YANG Lin, FANG Fang, LAN Guoxin, LIU Guiqiang. Electrochemical action in the biofilm-electrode autotrophic nitrogen removal system[J]. Environmental Chemistry, 2014, 33(6): 1033-1037. doi: 10.7524/j.issn.0254-6108.2014.06.004

电极生物膜自养脱氮系统中的电化学作用

1.
重庆三峡学院, 三峡库区水环境演变与污染防治重庆高校市级重点实验室, 重庆, 404000;
2.
重庆大学, 三峡库区生态环境教育部重点实验室, 重庆, 400045
基金项目:
三峡库区水环境演变与污染防治重庆高校市级重点实验室开放基金（WEPKL2012QN-06）资助.

Electrochemical action in the biofilm-electrode autotrophic nitrogen removal system

1.
Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservior, Chongqing Three Georges University, Chongqing, 404000, China;
2.
Key Laboratory of Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China
Fund Project:

摘要: 设计构建三维电极生物膜反应器，成功启动后稳定运行，在全自养条件下能较好地处理低碳氮比含氮废水.结果表明，在进水不含有机碳源，电流强度为30 mA，电流密度为0.012 mA·cm-2，运行周期24 h的实验条件下，反应器处理进水氨氮浓度为30 mg·L-1的废水时，氨氮转化率达到了90.3%，总氮去除率为70.0%；处理进水硝态氮浓度为30 mg·L-1的废水时，硝态氮去除率达到了82.7%.在考察电极生物膜反应器脱氮性能的同时，探讨系统中纯电化学作用的脱氮能力.结果显示电极生物膜处理氨氮废水的系统中，纯电化学脱氮作用为系统总脱氮能力的10%左右；而处理硝态氮废水的电极生物膜系统中，无电化学还原去除NO3--N作用.
- 电极生物膜 /
- 脱氮 /
- 电化学氧化 /
- 电化学还原
Abstract: Three-dimensional biofilm-electrode reactor was designed and established to remove of the low carbon-nitrogen ratio nitrogenous wastewater well in the complete autotrophic context. Results under specific experimental conditions (without any organic carbon source in the influent water, I=30 mA, J=0.012 mA·cm-2, running period=24 h) indicated that: when the reactor treated the influent wastewater at a ammonia concentration of 30 mg·L-1, the ammonia conversion rate and the total nitrogen removal efficiency were 90.3% and 70.0%, respectively; when removing the influent wastewater at the nitrate nitrogen concentration of 30 mg·L-1, the removal efficiency of nitrate nitrogen reached 82.7%. Denitrification efficiency of the reactor was inspected while investigating the denitrification capacity of pure electrochemical actions in the system. Results showed that, pure electrochemical denitrification was ca. 10% of the total denitrification capacity of the biofilm-electrode system for the ammonia-nitrogen wastewater, while no electrochemical reduction and removal of nitrate nitrogen was noted in the removal of the nitrate-nitrogen wastewater.
- biofilm-electrode /
- denitrification /
- electrochemical oxidation /
- electrochemical reduction

[1]	何绪文, 龚彦宇, 王培京, 等.电化学法用于微污染水脱氮处理试验[J].环境工程, 2009, 27(1):5-7
[2]	邓莉娟, 王中琪, 兰紫荆.电化学氧化预处理垃圾渗滤液的实验研究[J].环境科学与管理, 2008, 33(5):115-117
[3]	李庭刚, 陈坚, 张国平.电化学氧化法处理高浓度垃圾渗滤液的研究[J].上海环境科学, 2003, 22(12):892-897
[4]	张国芳, 肖书虎, 肖宏康, 等.黄连素制药废水的电化学预处理试验[J].环境科学研究, 2011, 24(1):79-83
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[11]	范经华, 范彬, 鹿道强, 等.多孔钛板负载Pd-Cu阴极电催化还原饮用水中硝酸盐的研究[J].环境科学, 2006, 27(6):2015-2021

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杨琳, 方芳, 兰国新, 刘贵强. 电极生物膜自养脱氮系统中的电化学作用[J]. 环境化学, 2014, 33(6): 1033-1037. doi: 10.7524/j.issn.0254-6108.2014.06.004

引用本文:

杨琳, 方芳, 兰国新, 刘贵强. 电极生物膜自养脱氮系统中的电化学作用[J]. 环境化学, 2014, 33(6): 1033-1037. doi: 10.7524/j.issn.0254-6108.2014.06.004

Citation:

电极生物膜自养脱氮系统中的电化学作用

1. 重庆三峡学院, 三峡库区水环境演变与污染防治重庆高校市级重点实验室, 重庆, 404000;
2. 重庆大学, 三峡库区生态环境教育部重点实验室, 重庆, 400045

收稿日期: 2013-09-12

基金项目:

三峡库区水环境演变与污染防治重庆高校市级重点实验室开放基金（WEPKL2012QN-06）资助.

关键词:

摘要: 设计构建三维电极生物膜反应器，成功启动后稳定运行，在全自养条件下能较好地处理低碳氮比含氮废水.结果表明，在进水不含有机碳源，电流强度为30 mA，电流密度为0.012 mA·cm-2，运行周期24 h的实验条件下，反应器处理进水氨氮浓度为30 mg·L-1的废水时，氨氮转化率达到了90.3%，总氮去除率为70.0%；处理进水硝态氮浓度为30 mg·L-1的废水时，硝态氮去除率达到了82.7%.在考察电极生物膜反应器脱氮性能的同时，探讨系统中纯电化学作用的脱氮能力.结果显示电极生物膜处理氨氮废水的系统中，纯电化学脱氮作用为系统总脱氮能力的10%左右；而处理硝态氮废水的电极生物膜系统中，无电化学还原去除NO3--N作用.

English Abstract

Electrochemical action in the biofilm-electrode autotrophic nitrogen removal system

1. Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservior, Chongqing Three Georges University, Chongqing, 404000, China;
2. Key Laboratory of Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China

Received Date: 2013-09-12

Fund Project:

Keywords:

Abstract: Three-dimensional biofilm-electrode reactor was designed and established to remove of the low carbon-nitrogen ratio nitrogenous wastewater well in the complete autotrophic context. Results under specific experimental conditions (without any organic carbon source in the influent water, I=30 mA, J=0.012 mA·cm-2, running period=24 h) indicated that: when the reactor treated the influent wastewater at a ammonia concentration of 30 mg·L-1, the ammonia conversion rate and the total nitrogen removal efficiency were 90.3% and 70.0%, respectively; when removing the influent wastewater at the nitrate nitrogen concentration of 30 mg·L-1, the removal efficiency of nitrate nitrogen reached 82.7%. Denitrification efficiency of the reactor was inspected while investigating the denitrification capacity of pure electrochemical actions in the system. Results showed that, pure electrochemical denitrification was ca. 10% of the total denitrification capacity of the biofilm-electrode system for the ammonia-nitrogen wastewater, while no electrochemical reduction and removal of nitrate nitrogen was noted in the removal of the nitrate-nitrogen wastewater.

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电极生物膜自养脱氮系统中的电化学作用

Electrochemical action in the biofilm-electrode autotrophic nitrogen removal system

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电极生物膜自养脱氮系统中的电化学作用

English Abstract

Electrochemical action in the biofilm-electrode autotrophic nitrogen removal system

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