在低C/N比率下,自和异脱剂之间的合作是由基于个体的建模揭示的
Wei Xing1, Daoqing Gao2, Yan Wang2
1Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, School of Environment, Beijing Jiaotong University, Beijing 100044, PR China; Tangshan Research Institute of Beijing Jiaotong University, Hebei 063000, PR China.
The Science of the total environment
|February 22, 2024
概括
一个基于个体的模型揭示了生物膜中自和异脱剂之间的合作. 优先效应影响脱剂的丰度和分层,为废水处理优化提供了洞察力.
科学领域:
- 环境微生物学环境微生物学
- 废水处理技术 废水处理技术
- 生物膜的动力学
背景情况:
- 无化生物膜对于水生系统中酸盐的去除至关重要.
- 自otrophic denitrifiers (AD) 和异otrophic denitrifiers (HD) 的共存是常见的.
- 了解AD-HD相互作用是当前测序方法具有挑战性的.
研究的目的:
- 模拟基于硫的AD和HD之间的物种间动态和优先效应.
- 在不同的碳 (C/N) 比率下研究这些相互作用.
- 为优化废水处理过程提供指导.
主要方法:
- 开发一个基于个体的模型,用于脱剂相互作用.
- 模拟共存 (试验I) 和入侵 (试验II) 场景.
- 在不同C/N比率下分析生物膜结构和种群动态.
主要成果:
- 并存模拟显示了0.25-1.5.5的C/N比率的合作和聚合.
- 侵袭模拟揭示了生物膜中的分层模式.
- 进入AD的HD入侵导致HD丰度减少,入侵时间更长 (优先效应).
- 由于有限的有机碳,AD入侵HD削弱了优先效应.
结论:
- 在最佳C/N比率下,合作是AD和HD在生物膜中的关键相互作用.
- 优先效应显著影响脱剂社区结构和丰度.
- 该模型为提高废水处理中的脱效率提供了有价值的见解.
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