通过优化外部碳添加部位在全尺寸无氧水箱中的脱性能,提高了脱性能
Yang Zhou1, Jie Zhang2,3, QingQing Wang4
1Zhongyuan Environmental Protection Co., Ltd, Zhengzhou, 450007, China.
Bioprocess and biosystems engineering
|February 4, 2026
概括
在废水处理中优化碳剂量可提高脱化. 通过更好地利用外部碳来源,新的"后和顶部"战略提高了16%的效率.
科学领域:
- 环境微生物学 环境微生物学
- 水处理工程水处理工程
背景情况:
- 低碳 (C/N) 比率限制了市政废水处理中的脱.
- 厌氧-无氧-有氧 (AAO) 过程对于去除至关重要.
研究的目的:
- 用固定载体在全面AAO过程中评估脱性能.
- 分析空间分布对脱动力学和微生物群落的影响.
- 为提高效率提出一个优化的碳剂量策略.
主要方法:
- 在不同深度 (1米,3米,5米) 采样污泥和生物膜.
- 使用批量测试量化脱化动力学的量化.
- 通过16S rRNA基因测序分析微生物社区结构.
主要成果:
- 污泥在1米处出现了峰值脱;生物膜在3米处达到峰值.
- 外部碳利用受到来自内部回流的高溶氧 (DO) 的阻碍.
- 塔乌拉在3米的生物电影中主导了无化社区.
结论:
- 微生物群落和动力学的空间分布为优化"后部和上部"碳剂量策略提供了信息.
- 优化的策略减少了16%的化学氧需求 (COD) 消耗,每次总 (TN) 减少了16%.
- 这种方法在全面系统中为脱效率和碳来源利用提供了实际的改进.
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