超越盛宴和饥荒:在永久盛宴制度下培养具有更好的性能的液态氧光颗粒
Jiewen Zhong1, Liaofan Tang1, Mingming Gao1
1Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
Bioresource technology
|April 30, 2024
概括
氧光颗粒 (OPG) 可以在永久的盛宴条件下种植,与传统方法相比,它具有优越的物理化学特性和废水处理性能.
科学领域:
- 环境微生物学环境微生物学
- 废水处理技术 废水处理技术
- 有颗粒的污泥形成.
背景情况:
- 氧光颗粒 (OPG) 通常是在营养有限 (饥荒) 或波动 (节食-饥荒) 条件下种植的.
- 在营养丰富的 (盛宴) 条件下,OPG形成和表现的潜力仍然未被探索.
研究的目的:
- 为了研究一个永久的盛宴制度下的光颗粒.
- 为了比较永久性饥荒,周期性盛宴饥荒和永久性盛宴制度对OPG种植和绩效的影响.
- 评估OPGs在处理化学氧需求 (COD) 和营养去除方面的效率.
主要方法:
- 在三种不同的养模式下,在水力动力反应堆中培养OPG:永久饥荒,周期性盛宴-饥荒和永久盛宴.
- 微生物群落功能分析,包括丝状滑动,EPS生产和C/N代谢.
- 在排序批量模式下运行OPG,以评估废水处理效率 (COD,氨,总去除) 和废水质量.
主要成果:
- 在所有三种模式中,OPGs都成功培养,表现出类似的微生物社区功能.
- 所有OPG系统都实现了高的COD (>91%),氨 (>96%) 和总 (>76%) 的去除效率.
- 永久盛宴制度产生了具有优越物理化学特性,较短的适应期和较低的废水度的OPG.
结论:
- 在永久的盛宴制度下,光颗粒化是可行的.
- 永久盛宴制度为OPGs的水力动态种植提供了一种新且有利的方法.
- 在永久盛宴条件下种植的OPG显示出可持续废水处理的增强性能.
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