首页 | 本学科首页   官方微博 | 高级检索  
     检索      

城市生活垃圾好氧堆肥中氨气变化及其影响
引用本文:单爱丽,王帆,严红.城市生活垃圾好氧堆肥中氨气变化及其影响[J].环境工程,2010,28(3).
作者姓名:单爱丽  王帆  严红
作者单位:大连大学环境与化学工程学院,辽宁,大连,116622
摘    要:堆肥过程中氮素损失比较严重,而氨气挥发是氮损失的主要途径。利用城市生活垃圾进行好氧堆肥,研究其堆肥过程中氨气变化规律及其对堆肥性质的影响。结果表明:在堆肥期间,氨气含量先增加后减小,最后基本稳定在5 mg/kg左右;而全氮含量先降低后增加;硝态氮含量先降低后增加;铵态氮是先快速增加,后缓慢减小至稳定;pH值先下降后升高,最终稳定在中性范围内;w(C)/w(N)先增加后下降;有机质含量显著下降。

关 键 词:城市生活垃圾  好氧堆肥  氨气

THE CHANGE IN AMMONIA AND ITS EFFECT DURING AEROBIC COMPOSTING OF MUNICIPAL SOLID WASTES
Shan Aili,Wang Fan,Yan Hong.THE CHANGE IN AMMONIA AND ITS EFFECT DURING AEROBIC COMPOSTING OF MUNICIPAL SOLID WASTES[J].Environmental Engineering,2010,28(3).
Authors:Shan Aili  Wang Fan  Yan Hong
Abstract:A heavy loss of nitrogen occurs in the process of composting,whereas the ammonia volatilization is the primary path.Municipal solid wastes(MSW)composting with aerobic composting technology was studied on the change of ammonia and its effect on character of composting in the process of composting.The results showed that ammonia content had a increase after decrease till to 5 mg /kg;the dynamic variations of content of the total nitrogen first decreased and then increased;amino nitrogen content had a slow reduction after a significant increase until a stabilization,on the contrary,nitrate nitrogen content first decreased and then increased;pH appeared decreased first and then increased till neutral state;C /N ratio showed reduction first and then increased;organic matter content decreased obviously during the composting.
Keywords:municipal solid wastes  aerobic composting  ammonia
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号