在AAO生物过器中通过复合碳来源增强的脱化:效率和转基因组学研究
Fan Guo1, Guokai Yan1, Haiyan Wang1
1State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China.
Journal of environmental sciences (China)
|September 21, 2024
概括
一个新的固体碳源有效地提高了废水处理中的去除. 这种经济的复合材料显著改善了无氧无氧氧 (AAO) 生物过器中的脱,实现了超过96%的去除.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 废水处理 废水处理
背景情况:
- 从家用污水中去除气往往是由于碳来源和电子捐赠者不足而受到限制.
- 传统的方法在废水中难以实现低碳比.
研究的目的:
- 开发一种经济的固体碳来源,以提高废水中的去除.
- 为了研究复合材料在无氧无氧氧 (AAO) 生物过器中的有效性,用于处理低C:N比率的污水.
主要方法:
- 开发一种复合固体碳源 (聚乙醇,酸,玉米).
- 碳源在AAO生物过器系统中用于家庭污水处理的应用.
- 超基因组分析以评估微生物社区结构和功能基因丰度.
主要成果:
- 去除效率从63.2%增加到96.5%.
- 废水的化学氧气需求仍然低于35 mg/L,总减少到<2 mg/L.
- 甲基因组分析显示,脱和有机降解基因的丰富性增加,包括果糖代谢和TCA循环的基因.
结论:
- 开发的复合固体碳源有效地提高了AAO生物过器中的脱.
- 该研究为改进的除技术的实际应用提供了理论基础.
- 这些发现支持使用这种材料来高效处理低C:N比率的废水.
相关概念视频
00:46Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
01:20Overview of Nitrogen Metabolism
7.9K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.9K