文章基本信息

标题：Nitrogen Transformation and Loss During the Composting Process of Livestock and Poultry Manure With or Without Bio-fermentation Agent
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作者：Liu Shuai ; Wang Xudong
期刊名称：Nature, Environment and Pollution Technology
印刷版ISSN：0972-6268
出版年度：2017
卷号：16
期号：4
语种：English
出版社：Technoscience Publications
摘要：The composting experiment using chicken manure, pig manure, fungus chaff and biogas residue asmixed media was conducted for 30 days with or without amendment of the bio-fermentation agent.The nitrogen transformation, changes of compost temperature and organic carbon in the mixture wereinvestigated during the whole process. The results demonstrated that addition of the bio-fermentationagent improved the compost temperature, prolonged the high-temperature stage, expedited the processof organic carbon decomposition and lowered the C/N ratio. The amendment of bio-fermentation agentwas beneficial to the transformation of organic nitrogen to ammonium (NH4+-N) in the early compostingstage (the first 9 d), but to the form of nitrate (NO3--N) afterwards. Compared to the non-bio-fermentationagent treatment, the composting process was reduced by 9 d to maturity. The acid hydrolysis organicnitrogen (THN) was increased with the addition of bio-fermentation agent during the early compostingperiod by increasing the hydrolysis of the protein. The formation of amino acid nitrogen (AAN) andamide nitrogen (AN) in the compost, with amendment of bio-fermentation agent in early stage, revealedthe reason why the mineralization of organic N was fast during the composting process. Although theaddition of fermentation agent accelerated the organic nitrogen to transform into available forms, it didnot cause massive N loss in the whole composting process.