| 闫召伟,杨菲宇,高兴祖,陈杰,李施雨,李国学,罗文海.含硫添加剂对猪粪堆肥过程甲烷与臭气排放的影响[J].农业环境科学学报,2021,40(11):2448-2455. |
| 含硫添加剂对猪粪堆肥过程甲烷与臭气排放的影响 |
| Effect of sulfur-containing additives on methane and odor emissions during pig manure composting |
| 投稿时间：2021-08-29 |
| DOI：10.11654/jaes.2021-0980 |
| 中文关键词: 堆肥 猪粪 含硫添加剂 甲烷排放 臭气排放 |
| 英文关键词: compost pig manure sulfur additive methane emission gas emission |
| 基金项目:内蒙古自治区科技计划项目“反刍动物粪污循环利用关键技术研究与示范”（2021GG0316） |
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| 中文摘要: |
| 为探寻合适的含硫添加剂，有效控制堆肥过程中甲烷和臭气的排放，以磷石膏（PG）、过磷酸钙（SP）、硫酸钠（NS）为添加剂，采用强制通风曝气的60 L桶状发酵罐，探究不同含硫添加剂对于猪粪堆肥过程中气体排放的影响。结果表明：添加堆肥原始物料鲜质量2%的PG、2%的SP、1.2%的NS处理分别能减少50.8%、43.3%、46.6%的甲烷排放；PG和SP处理能减少40.6%和37.2%的氨气挥发，NS处理减少了20.0%的氨气挥发；PG与SP处理对硫化氢气体没有产生明显的抑制作用，而NS处理的硫化氢排放量为对照（无添加剂）处理的3.8倍，且NS处理堆肥结束后种子发芽率仅为41.3%。研究表明，1.2%的NS处理不适合臭气减排，而添加2%的PG以及2%的SP等低硫添加剂较为适宜。 |
| 英文摘要: |
| This study aimed to identify suitable sulfur-containing additives for the effective control of methane and odor emissions from composting processes. In this study, we used phosphogypsum(PG), calcium superphosphate(SP), and sodium sulfate(NS)as additives in a 60 L barrel fermenter with forced ventilation and aeration to investigate the effects of different sulfur-containing additives on gas emissions during the composting of pig manure. The results showed that the addition of 2% PG, 2% SP, and 1.2% NS to the compost raw material reduced methane emissions by 50.8%, 43.3%, and 46.6%, respectively. PG and SP treatments reduced ammonia volatilization by 40.6% and 37.2%, respectively, and NS treatment reduced ammonia volatilization by 20.0%. PG and SP treatments did not have a substantial inhibitory effect on hydrogen sulfide gas emissions; hydrogen sulfide emission from NS treatment was 3.8 times higher than that of the control treatment, and the seed germination rate at the end of composting in the NS treatment was only 41.3%. In summary, the addition of 1.2% NS treatment is not suitable as an odor reduction strategy, but the addition of 2% PG and 2% SP and other low-sulfur additives is more appropriate. |
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