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通过多阶段的A/O泥复合工艺有效地去除气,有细分的流入:性能和微生物社区结构结构.
Shaobo Zhang1, Dan Zhong2, Yicheng Cao1
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
Environmental research
|February 17, 2024
概括
一个新的多阶段的A/O膜工艺显著提高了废水处理. 这种先进的系统实现了高氨和总去除,以及优异的COD减少,优于传统方法.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 传统的活性污泥工艺在实现高去除效率方面面临着挑战.
- 膜工艺提供了更好的废水质量,但可能是昂贵的,容易污染.
- 优化废水处理需要创新的复合系统,整合生物和膜技术.
研究的目的:
- 开发和评估一种新的多阶段无氧氧 (A/O) 泥复合工艺,用于增强废水处理.
- 为了比较这种新工艺的和化学氧需求 (COD) 清除效率与传统的活性污泥和纯膜工艺.
- 调查微生物群落结构,并确定负责在A/O泥复合反应堆中去除污染物的关键细菌.
主要方法:
- 构建一个多阶段的A/O泥复合材料工艺,有细分的影响.
- 与传统的活性污泥和多阶段的A/O纯膜工艺进行比较分析.
- 在不同的操作条件下对和COD去除的研究.
- 微生物社区分析使用高通量测序来确定细菌的数量和多样性.
主要成果:
- 在最佳条件下,多阶段的A/O泥复合工艺实现了99%的最大氨去除率和80%的平均总去除率.
- 废水中的化学氧气需求 (COD) 清除效率达到了93%.
- 微生物分析显示,复合反应堆中蛋白质细菌的相对丰富度最高,有氧泳池中社区多样性和丰富性高. 主要的有氧脱细菌,包括Dechloromonas,Flavobacterium和Rhodobacter,被确定为氨去除的关键贡献者.
结论:
- 开发的多阶段A/O泥复合材料工艺具有细分的流量,对于废水处理非常有效,显示出优异的和COD去除效率.
- 增强的性能归因于生物处理和膜过的协同效应,得到了强大的微生物社区结构的支持.
- 鉴定特定的有氧脱细菌为先进的废水处理系统的进一步优化和潜在的生物增量策略提供了洞察力.
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