在先进的废水处理中,利用生物气化过器优化去除
Juan Li1,2, Ziru Niu1,2, Lei Li3
1Shaanxi Provincial Land Engineering Construction Group, Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Natural Resources, Xi'an, China.
Frontiers in bioengineering and biotechnology
|December 13, 2024
概括
生物气化过器有效地减少废水中的总 (TN). 这项研究优化了生物过器的性能,实现了较低的废水TN水平和高的脱负载,以实现高效的处理.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 水处理 处理水的方法
背景情况:
- 减少总 (TN) 是废水处理的一个关键挑战.
- 废水中低度的气需要专门的处理方法.
研究的目的:
- 为了研究低度废水的生物气化过器 (BAF) 的脱性能和最大脱负荷.
- 用BAFs确定最佳操作参数,以有效地去除TN.
主要方法:
- 实验室规模和试点规模的生物过器的建造和运行.
- 使用伪第一阶模型分析脱化动力学.
- 批量和连续流体实验以确定最小液压保留时间 (HRT).
- 使用16S rRNA测序进行微生物多样性分析.
主要成果:
- 无氧脱法遵循伪第一阶动力学.
- 成熟生物膜的最低HRT为0.5小时.
- 在最佳条件 (25 mg/L NO3--N,0.5 h HRT) 下,废水TN < 1 mg/L.
- 在50 mg/L NO3-N和0.5 h HRT下,最大的脱负荷达到2.2 kg (TN) / m3·d.
- 确定了主导的属:肠杆菌,科马诺斯和罗多科库斯.
结论:
- 生物气化过器在处理低废水方面是有效的.
- 已确定的操作参数 (HRT,影响度) 可以实现高的脱效率.
- 该研究为全面实施BAF提供了建议.
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