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在一个用Pseudomonas sp.增强的生物膜反应器中加速去除的性能. 使用聚卡普罗拉克作为碳源来处理低碳至的废水
Xiujie Wang1, Huimin Hou1, Peizheng Liu1
1The College of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, China.
Bioresource technology
|July 19, 2023
概括
使用新型菌株进行生物增量,增强了低碳至废水处理的异构化-有氧脱 (HN-AD) 过程. 这提高了去除效率,并减少了废水COD.
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:
- 低碳比 (C/N) 的废水对传统的除过程构成了挑战.
- 异构化-有氧脱 (HN-AD) 过程为有效的去除提供了潜力.
- 聚烯酸 (PCL) 可以作为废水处理中的碳来源.
研究的目的:
- 通过使用PCL作为碳源来研究提高低C/N废水处理的HN-AD过程.
- 评估使用一种新型PCL降解HN-AD菌株 (JQ-H3) 进行生物增殖的有效性,以改善去除.
- 分析微生物社区结构和功能基因丰富性,以应对生物增量.
主要方法:
- 移动床生物膜反应堆 (MBBR) 在180天内使用PCL适应低C/N废水处理.
- 用一种新型HN-AD菌株,JQ-H3.3,对适应反应堆进行生物增量.
- 增强反应堆 (R2) 和控制反应堆 (R1) 在各种液压保留时间 (HRT) 之间的去除效率和废水化学氧气需求 (COD) 的比较.
- 使用16S rRNA基因测序和PICRUSt2进行功能基因预测的微生物社区分析.
主要成果:
- 增强反应堆 (R2) 在不同HRT中实现了相比控制反应堆 (R1) (59.24%76.68%) 的总 (TN) 清除效率 (82.31%93.16%) 显著更高.
- 在R2 (10.17毫克/升) 的废水中,COD明显低于R1 (42.45毫克/升).
- 生物增强菌株JQ-H3成功繁殖,达到4.79%的相对丰度,PICRUSt2分析表明循环功能酶的丰度增加.
结论:
- 使用新型PCL降解HN-AD菌株JQ-H3的生物增量是一种有效的策略,用于增强低C/N废水处理中的去除.
- 当HN-AD工艺与JQ-H3增强并使用PCL作为碳来源时,它在去除和废水质量方面表现出卓越的性能.
- 这项研究提出了一种有希望的方法,以改善在具有挑战性的废水流中改善管理.
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