污泥床位置对微藻-细菌颗粒型污泥工艺的影响机制
Bingheng Chen1, Yao Shen1, Xiaoyuan Zhang2
1Department of Water and Wastewater Engineering, School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China.
The Science of the total environment
|October 26, 2023
概括
微藻-细菌颗粒污泥 (MBGS) 反应堆的最佳位置在底部附近,增强了污染物去除. 这种放置促进了微藻和细菌之间的协同作用,以有效处理废水.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 废水处理工程 废水处理工程
背景情况:
- 污泥床的位置是微藻-细菌颗粒污泥 (MBGS) 工艺中的一个关键,但尚未研究的因素.
- 了解污泥床动态对于优化废水处理中的MBGS效率至关重要.
研究的目的:
- 调查污泥床位置对微藻细菌颗粒污泥 (MBGS) 性能的影响.
- 确定最佳的污泥床位置,以提高污染物清除和MBGS反应堆中的微生物社区结构.
主要方法:
- 在生物反应堆内的不同污泥床位置上对MBGS性能进行比较分析.
- 测量有机物质,氨和去除效率.
- 评估微生物群落的组成,包括Rotifera和Chlorophyta的丰富性,以及微生物继承率.
主要成果:
- 靠近反应堆底部的泥床显示有机物 (75.1%),氨 (73.1%) 和 (82.5%) 的清除率明显更高.
- 最佳的底层污泥床放置促进了MBGS的更高的生长和聚合率,这归因于协同的微藻-细菌相互作用.
- 污泥床位置与罗提菲拉 (R2 = 0.931) 和叶绿植物 (R2 = 0.733) 的丰富性之间发现了强烈的相关性,在较低位置的微生物继承速度更快.
结论:
- 将污泥床位于生物反应堆底部附近,对于最大限度地提高MBGS性能至关重要.
- 这种最佳定位通过优化光和基板传输,促进了微藻和细菌之间的协同作用,从而导致更好的污染物去除.
- 这些发现为工程和应用MBGS技术在废水处理中提供了基础知识.
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