森林工程Issue(4)：7-9,3.
不同碳源对颗粒污泥反硝化过程中N2O产生量的影响
Effect of Different Carbon Sources on Amount of N2O Emission from Denitrification Process of Granular Sludge
摘要
Abstract
Based on stable operation of aerobic granular sludge system,the effect of different carbon sources on the process of aerobic granular sludge denitrification and the amount of N2O emission was studied.When methanol was taken as the carbon source,with the decrease of hypoxia ammonia,nitrite and nitrate concentrations,the concentration of N2O was also decreased in the whole process.During denitrification process,the highest concentration of N2O was 0.42mg/L.Under hypoxic conditions,the highest concentration of dissolved N2O produced by methanol as external carbon source was up to 0.082 mg / L.Adding ethanol as the carbon source,the concentration of N2O in its gas release was 1.21mg / L when the aerobic end.N2O decreased in the whole oxygen concentration process,and the highest value of the produced N2O was 0.87 mg / L,with highest dissolved N2O of 0.077 mg / L.Results show that,with adequate methanol and ethanol added into the denitrification process of aerobic granular sludge,the generation of N2O can be detected,but the amount is quite small that can be ignored.Therefore,adding different carbon sources into denitrification process of aerobic granular sludge has little effect on N2O generation.关键词
N2O产生量/不同碳源/颗粒污泥/短程硝化反硝化Key words
N2O production/different carbon sources/granular sludge/nitrification and denitrification分类
资源环境引用本文复制引用
曾巍,高大文..不同碳源对颗粒污泥反硝化过程中N2O产生量的影响[J].森林工程,2011,(4):7-9,3.基金项目
全国优秀博士学位论文专项基金项目 （）
黑龙江省杰出青年基金项目 （）
