以S0驱动的部分脱加上anammox (S0PDA) 能够高效地从废水中去除自营
Luyao Wang1, Qi Zhao1, Liang Zhang1
1National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
Water research
|March 16, 2024
概括
一种新的S0驱动部分脱与anammox (S0PDA) 结合的过程有效地使用硫颗粒和颗粒性污泥从废水中去除. 这种自的方法实现了高的去除率,并证明了在连续运行中的稳定性.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 环境工程 环境工程
背景情况:
- 自营去除过程对于废水处理至关重要.
- 传统的方法经常面临效率的局限性.
- 将元素硫 (S0) 颗粒与颗粒性污泥集成,提供了一种新的方法.
研究的目的:
- 为了研究一种新的S0驱动的部分脱与anammox (S0PDA) 工艺相结合的过程.
- 评估从含有氨和酸盐的废水中自营养去除的过程.
- 在连续生物反应器中评估S0PDA过程的效率,速率和稳定性.
主要方法:
- 使用上游无氧污泥床生物反应器连续运行超过240天.
- 使用的S0颗粒 (2-3毫米直径) 与颗粒污泥集成.
- 监测流入和流出度 (NH4+,NO3-) 和液压保留时间 (HRT).
主要成果:
- 实现了高的去除效率 (88.5 ± 2.0%) 和速率 (1.75 ± 0.07 kg-N/m3·d).
- 尽管缩短了HRT (2.0小时),但NH4+ (1.45-1.51毫克-N/L) 和NO3- (4.46-6.52毫克-N/L) 的排放量仍然很低.
- 确定的主导细菌:在污泥中的Candidatus Brocadia和S0颗粒上的Thiobacillus (特别是Thiobacillus thioparus).
结论:
- S0PDA 工艺是一种强大的,高效的自营养移除的方法.
- 铁菌 (Thiobacillus thioparus) 在S0颗粒的部分脱中起着关键作用.
- 这项研究挑战了自营去除效率低的概念,为废水处理应用提供了新的见解.
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