一个全面的两阶段无氧-氧过程的脱碳,脱特性和微生物社区分析,用于处理耐火焦化废水
Jie Hu1, Bing Xu1, Jiabao Yan2
1School of Chemical and Environmental Engineering, Wuhan Polytechnic University Wuhan 430023 China hujie9231@whpu.edu.cn xubing200806@163.com.
RSC advances
|March 28, 2025
概括
这项研究表明,两阶段的无氧氧 (A/O) 工艺有效地处理焦化废水,消除了90%以上的化学氧气需求 (COD) 和. 不同水箱中的微生物群落驱动这些脱碳和脱过程.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理工程 废水处理工程
背景情况:
- 焦化废水由于有机污染物和营养的高度而带来了重大挑战.
- 有效的处理策略对于减轻这种难以处理的工业废水对环境的影响至关重要.
研究的目的:
- 调查焦化废水的全面两阶段无氧氧 (A/O) 工艺的脱碳和脱性能.
- 分析微生物群落的组成和结构,与不同A/O阶段的处理效率相关.
- 确定负责特定生物反应器区域污染物去除的关键差异化微生物.
主要方法:
- 系统地调查一个全面的两阶段A/O过程.
- 监测化学氧需求 (COD),氨 (NH4+-N) 和总 (TN) 的去除效率.
- 使用多维分析分析微生物社区组成和结构的分析.
主要成果:
- 两阶段的A/O过程实现了超过90%的COD,NH4+-N和TN的去除效率.
- 具体的水箱表现出不同的作用:无氧水箱1 (A1) 用于初级COD去除,无氧水箱2 (A2) 和A1 用于TN去除,氧水箱1 (O1) 用于NH4+-N去除.
- 在不同的生物反应器区域中确定了关键的差异化微生物,包括*Thiobacillus*, *Thauera*, *Mycobacterium*, *Nitrospira*, *Bacillus*和 *Truepera*.
结论:
- 全面的两阶段A/O工艺对于化废水的处理非常有效.
- 处理效率与每个生物反应中存在的不同微生物群落密切相关.
- 在特定的生物反应器区域中对关键微生物进行有针对性的增强,可以进一步提高治疗效率.
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