IMPACT OF COD: N RATIO ON N2O EMISSIONS DURING LIVESTOCK WASTEWATER TREATMENT VIA THE NITRITE PATHWAY

被引：0
作者：
Kong, Qiang [1 ,2 ]
Feng, Yu [1 ,2 ]
Liu, Yu-zhen [1 ,2 ]
Hu, Zhen [3 ]
机构：
[1] Shandong Normal Univ, Inst Environm & Ecol, 88 Wenhua Donglu, Jinan 250014, Shandong, Peoples R China
[2] Shandong Normal Univ, Coll Geog & Environm, 88 Wenhua Donglu, Jinan 250014, Shandong, Peoples R China
[3] Shandong Univ, Sch Environm Sci & Engn, Shandong Prov Key Lab Water Pollut Control & Reso, 27 Shanda Nanlu, Jinan 250100, Shandong, Peoples R China
来源：
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2016年 / 15卷 / 10期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
COD:N ratio; livestock wastewater; nitrite; nitrous oxide; NITROUS-OXIDE EMISSION; PARTIAL NITRIFICATION; DISSOLVED-OXYGEN; LIQUID FRACTION; REMOVAL PROCESS; DENITRIFICATION; AMMONIA; PERFORMANCE;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This study examines the impact of the chemical oxygen demand to nitrogen ratio (COD:N) on nitrous oxide (N2O) emissions during N removal via a nitrite (NO2) pathway for synthetic livestock wastewater treatment. Based on typical cycle operations, 1.07 +/- 0.07% of the incoming N load was emitted as N2O at a COD: N ratio of 3: 1. This was higher than the 0.83 +/- 0.08% emitted at a COD: N ratio of 6: 1. The low COD: N ratio in the synthetic livestock wastewater may thus cause increased N2O emissions. Nitrous oxide was emitted during both aeration and non-aeration periods; however, N2O emissions during aeration periods were much higher than during non-aeration periods. Low dissolved oxygen levels, high NO2 -N concentrations and an intermittent aeration strategy were the primary factors encouraging N2O emissions during synthetic livestock wastewater treatment via the NO2 pathway.
引用
收藏
页码：2239 / 2244
页数：6
相关论文
共 33 条
  • [1] N2O Emissions from Activated Sludge Processes, 2008-2009: Results of a National Monitoring Survey in the United States
    Ahn, Joon Ho
    Kim, Sungpyo
    Park, Hongkeun
    Rahm, Brian
    Pagilla, Krishna
    Chandran, Kartik
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2010, 44 (12) : 4505 - 4511
  • [2] [Anonymous], 430R09004 EPA
  • [3] [Anonymous], 2005, Standard methods for the examination of water and waste- water
  • [4] Bajec NL, 2015, ENVIRON ENG MANAG J, V14, P1
  • [5] Challenges and innovations on biological treatment of livestock effluents
    Bernet, Nicolas
    Beline, Fabrice
    [J]. BIORESOURCE TECHNOLOGY, 2009, 100 (22) : 5431 - 5436
  • [6] Comparison of influence of free ammonia and dissolved oxygen on nitrite accumulation between suspended and attached cells
    Chung, J
    Shim, H
    Lee, YW
    Bae, W
    [J]. ENVIRONMENTAL TECHNOLOGY, 2005, 26 (01) : 21 - 33
  • [7] Long term partial nitritation of anaerobically treated black water and the emission of nitrous oxide
    de Graaff, M. S.
    Zeeman, G.
    Temmink, H.
    van Loosdrecht, M. C. M.
    Buisman, C. J. N.
    [J]. WATER RESEARCH, 2010, 44 (07) : 2171 - 2178
  • [8] Systematical strategies for wastewater treatment and the generated wastes and greenhouse gases in China
    Guo, Jingbo
    Ma, Fang
    Qu, Yuanyuan
    Li, Ang
    Wang, Liang
    [J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING, 2012, 6 (02) : 271 - 279
  • [9] NITRIFICATION AT LOW-LEVELS OF DISSOLVED-OXYGEN WITH AND WITHOUT ORGANIC LOADING IN A SUSPENDED-GROWTH REACTOR
    HANAKI, K
    WANTAWIN, C
    OHGAKI, S
    [J]. WATER RESEARCH, 1990, 24 (03) : 297 - 302
  • [10] AGRICULTURAL GREEN GAS DEMONSTRATION PROJECTS IN THE NETHERLANDS. A STAKEHOLDER ANALYSIS
    Hoppe, Thomas
    Sanders, Maurits Ph Th
    [J]. ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL, 2014, 13 (12): : 3083 - 3096
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