Generation and Emission of Ammonia During the Full-Scale Composting of Sewage Sludge

文献类型: 外文期刊

第一作者: Shen, Yujun

作者: Shen, Yujun;Zhou, Haibin;Meng, Haibo;Shen, Yujun;Zhou, Haibin;Meng, Haibo;Zheng, Guodi;Chen, Tongbin;Guo, Rui

作者机构:

关键词: Ammonia; Sewage sludge; Composting; Generation; Emission

期刊名称:WASTE AND BIOMASS VALORIZATION ( 影响因子:3.703; 五年影响因子:3.624 )

ISSN: 1877-2641

年卷期: 2020 年 11 卷 9 期

页码:

收录情况: SCI

摘要: The generation and emission of ammonia (NH3) were studied using a continuous monitoring system in an established sewage sludge treatment plant. Results showed that NH(3)generation within the pile differed from the emissions at the pile surface during composting. The maximum NH(3)concentration reached 600 mg m(-3)inside the composting pile and 200 mg m(-3)in the outlet gas. The mass of N determined in NH(3)generations was 9.97 g kg DM-1, which was 2.57 times higher than the mass of N in NH(3)emissions. The highest NH(3)generation and emission masses in one aeration cycle occurred during the mesophilic (10.19 mg kg(-1)) and early thermophilic (6.91 mg kg(-1)) phases. The relationship between NH(3)generation rates and time during one aeration cycle and different composting phases could be expressed as a logarithmic equation, and the relationship between NH(3)emission rate and time could be expressed as a quadratic equation. Graphic

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