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微生物除臭剂对猪便发酵和潜在的除臭机制的影响

Changning Li¹, Chen Zhang², Fu Ran²

¹Key Laboratory of Grassland Ecosystem, Ministry of Education, Lanzhou, 730070 Gansu, China; College of Grassland Science, Gansu Agricultural University, Lanzhou 730070, Gansu, China.

Waste management (New York, N.Y.)

|December 6, 2023

概括

一种新的细菌除臭剂MIX有效地减少了牲畜便中的氨和硫化气味. 这种微生物策略通过降低有害气体和增加有益化合物来增强堆肥.

科学领域:

环境微生物学环境微生物学
农业科学农业科学
废物管理废物管理

背景情况:

由于便的分解,畜牧业和家禽养殖业产生了严重的气味问题.
氨 (NH3) 和硫化 (H2S) 是恶臭和环境污染的主要原因.
微生物除臭是一种有希望的生物方法来缓解这些问题.

研究的目的:

隔离和识别能够去除氨 (NH3) 和硫化 (H2S) 的细菌.
开发一种用于牲畜便的新型细菌除臭剂混合物 (MIX).
分析MIX在猪便发酵过程中减少NH3,H2S和挥发性脂肪酸 (VFA) 的有效性.

主要方法:

隔离和选NH3和H2S从环境样本中去除细菌.
使用Bacillus zhangzhouensis,Bacillus altitudinis和Acinetobacter pittii的细菌除臭剂MIX的配方. 这是一个细菌除臭剂.
用MIX发酵猪便,然后对气体度 (NH3,H2S),营养水平 (NO3-,SO42-) 和VFA进行分析.

主要成果:

隔离的细菌显示了NH3 (65.20-79.80%) 和H2S (34.90-79.70%) 的高去除效率.
MIX显著降低了NH3和H2S度,分别降低了41.82%和66.35%,同时增加了NO3-N和SO42-7.80%和8.83%.
应用MIX导致挥发性脂肪酸 (VFA) 显著减少,并改变了微生物群落结构.

结论:

细菌除臭剂MIX有效地减少了牲畜便中的主要臭味化合物 (NH3,H2S,VFA).
MIX促进有益的营养转化,增加酸盐和硫酸盐度.
这种微生物战略显示了畜牧业和家禽废物管理中可持续除臭的巨大潜力.

关键词:

氨气氨气氨气是一种硫化是一种硫化.微生物社区的继承.微生物除臭剂是一种微生物除臭剂.猪便猪便是猪便中的一种.挥发性脂肪酸是一种挥发性脂肪酸.

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