采用HN-AD细菌增强生物过反应器的有效策略,以去除NH3并减少二次污染
Chenchen Huan1, Jialing Wang2, Yue He2
1CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, Xi'an, Shaanxi Province 710064, PR China; School of Water and Environment, Chang'an University, Xi'an, Shaanxi Province 710064, PR China.
Journal of hazardous materials
|September 23, 2024
概括
帕拉科克斯 (Paracoccus denitrificans) HY-1在生物滴水过器中增强了氨去除,达到96.52%的效率. 这种HN-AD细菌还显著减少了大型养猪场环境中的气味.
科学领域:
- 环境微生物学 环境微生物学
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 生物滴水过器 (BTF) 用于气相污染物去除.
- 氨 (NH3) 是一种主要的气体污染物,导致气味和环境问题.
- 提高BTF去除氨的效率对于环境修复至关重要.
研究的目的:
- 为了评估Paracoccus denitrificans HY-1在去除氨的BTF中的有效性.
- 评估HY-1接种对BTF性能和微生物代谢的影响.
- 为了研究HY-1注射BTF在大型养猪场的应用,以控制气味.
主要方法:
- 用异性化-有氧脱 (HN-AD) 菌株Paracoccus denitrificans HY-1对BTF进行注射.
- 在BTF中使用竹炭作为填充材料.
- 分析氨去除效率 (RE),营养度,微生物群落和基因表达.
- 在大型养猪场进行臭味去除评估的现场应用.
主要成果:
- 在27s EBRT和812.56 ppm入口度下,HY-1注射显著改善了BTF中的NH3 RE,达到96.52%.
- 在循环液中保持了NH4+-N,NO2--N和NO3--N (8.52,5.14,18.07 mg/L) 的低度.
- 成功殖民HY-1和脱基因 (nar,nap,nir,nor,nos) 的高表达证实了增强的化和脱.
- 大规模应用在养猪场实现了99.61%的NH3和96.63%的H2S去除.
结论:
- 帕拉科库斯 (Paracoccus denitrificans) HY-1有效地提高了BTF去除氨的性能.
- 在生物除臭过程中,HN-AD细菌减轻循环液中的二次污染.
- 接种HY-1的BTF是一种有前途的技术,用于在农业环境中有效控制气味.
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