猪粪好氧发酵过程中挥发性有机物组分分析及致臭因子的确定

发布时间：2018-06-08 10:52

本文选题：粪 + 发酵　；参考：《农业工程学报》2016年04期

【摘要】：为了控制猪粪好氧发酵中产生的挥发性有机物(volatile organic compounds)及主要致臭物质,开展了猪粪好氧发酵试验,通过连续监测猪粪好氧发酵过程中所排放的挥发性气体,研究猪粪好氧发酵中产生的VOCs组分及其致臭因子。研究表明,在猪粪好氧发酵过程中共产生33种挥发性物质,除氨气和硫化氢外,共有31种VOCs,包括芳香烃12种,醛类8种,硫醇硫醚类4种,卤代烃4种,酮类2种,胺类1种;猪粪好氧发酵中主要致臭物质为:二甲二硫、甲硫醚、二甲三硫、乙醛和硫化氢,并建议将甲硫醚作为猪粪好氧发酵中产生的恶臭污染指示物。该研究可为猪粪堆肥过程中恶臭物质的监测、制定控制策略提供参考。
[Abstract]:In order to control volatile organic compounds produced in aerobic fermentation of pig manure and its main odorous substances, the aerobic fermentation experiment of pig manure was carried out. The volatile gases emitted during aerobic fermentation of pig manure were continuously monitored. The composition of VOCs produced in aerobic fermentation of pig manure and its smelling factors were studied. The results showed that 33 volatile substances were produced during aerobic fermentation of pig manure. There were 31 VOCs, including 12 aromatic hydrocarbons, 8 aldehydes, 4 mercaptan thioether, 4 halogenated hydrocarbons, 2 ketones and 1 amine, in addition to ammonia and hydrogen sulfide. The main smelling substances in aerobic fermentation of pig manure were dimethyl disulfide, methyl sulfide, dimethyl trisulfide, acetaldehyde and hydrogen sulfide, and it was suggested that methyl sulfide should be used as a stench pollution indicator in aerobic fermentation of pig manure. This study can be used as a reference for the monitoring of odors in the process of pig manure composting and the formulation of control strategies.
【作者单位】：农业部规划设计研究院农村能源与环保研究所;农业部农业废弃物能源化利用重点实验室;河北农业大学资源与环境科学学院;
【基金】：国家自然科学基金:青年科学基金项目(41301634)
【分类号】：X713

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