Impact of COD/N Ratio on Nitrous Oxide Emission during Livestock Wastewater Treatment via Nitrite Pathway

摘要：

　　This study attempted to elucidate impact of COD/N ratio on nitrous oxide (N2O) emission in a nitrogen removal via nitrite pathway system for livestock wastewater treatment.Based on typical cycle operation, the emission of N2O in low COD/N (COD/N=3∶1) was (1.07±0.07) % higher than that of(0.83±0.08) % in high COD/N (COD/N=6∶1).The low COD/N ratio in the livestock wastewater could cause more N2O emission.N2O was generated both during aeration and non-aeration periods while the N2O generation rates in the non-aeration periods were much higher than during the aeration periods.Low DO and high NO2--N concentrations were the primary factors encouraging N2O emission during livestock wastewater treatment via nitrite pathway.

关键词： nitrous oxide COD/N ratio livestock wastewater nitrite

作者: Qiang Kong Jian Zhang Shou-qing Ni Shuang Liang Hui-jun Xie Ning Guo

作者单位: College of life science,Shandong Normal University,88 Wenhua East Road,Jinan 250014,Shandong,PR Chin Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse,School of Environme Environmental Research Institute,Shandong University,27 Shanda Nanlu,Jinan 250100,Shandong,PR China

会议类型: 国际会议

会议名称: International Conference on Recent Advances in Pollution Control and Resource Recovery for the Livestock Farming Industry(RAPCP 2013)2013年畜禽养殖污染防治国际会议

会议地点: 浙江嘉兴

会议语种:英文

页码: 88-93

在线出版日期: 2013-10-24（万方平台首次上网日期，不代表论文的发表时间）