| 北京市生活垃圾填埋场氨排放特征研究 |
| 摘要点击 1572 全文点击 927 投稿时间：2016-03-15 修订日期：2016-06-16 |
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| 中文关键词 垃圾填埋场 氨 排放特征 工艺关键点 日变化 |
| 英文关键词 landfill sites NH3 emission characteristics key processes daily variation |
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| 中文摘要 |
| 氨是生活垃圾填埋场产生的主要恶臭物质之一，同时也是PM2.5的重要前体物. 依据环境空气氨测定和无组织废气监测方法，研究了北京市两家垃圾填埋场的工艺关键点和厂界的氨浓度水平. 结果表明填埋作业面、污泥处理车间和渗滤液调节池等工艺关键点的氨浓度为0.078~0.341 mg·m-3. 工艺关键点的氨浓度呈现日间高、夜间低的特点，温度和湿度是主要气象影响因素，阴雨天气时监测结果明显偏低. 氨浓度在厂界外有明显下降趋势，厂界下风向100 m处平均下降60.00%，300 m处平均下降69.90%. 研究为北京市垃圾填埋场氨排放水平本地化和氨排放监测管理提供科研支持. |
| 英文摘要 |
| NH3 is one of the main odors produced from landfill sites. It is also an important precursor of PM2.5. According to the NH3 of ambient air and non-organizational waste gas monitoring method, the research studied NH3 emission characteristics of two landfill sites in Beijing. The results showed that the NH3 concentrations in waste pit, sludge treatment workshop and leachate equalization basin were 0.078-0.341mg·m-3. The NH3 concentration of key processes was rising in daytime and decreasing in night. Temperature and relative humidity were main meteorological influencing factors, and NH3 concentration was low in rainy weather. The NH3 concentration declined significantly along downwind directions, by 60.00% at 100m out of boundary and 69.90% at 300 m. This reasearch provides scientific support for further study on localization of NH3 emission characteristics and NH3 emission monitoring management. |
