使用无氧-无氧-有氧 (AAO) 工艺与颗粒性泥改善了海鲜加工废水的处理
Tran Minh Cuong1, Nguyen Hong Dan1, Tran Thi Thai Hang2
1Institute for Environment and Resources, National University of Ho Chi Minh City, Ho Chi Minh City, Vietnam.
概括
颗粒污泥使用无氧-无氧-有氧工艺有效处理海产废水,消除了超过93%的化学氧气需求. 微生物分析揭示了多样化的社区,尽管的去除是适度的.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理工程 废水处理工程
- 生物技术是生物技术.
背景情况:
- 海鲜加工废水对有机和营养污染造成了重大挑战.
- 有效的处理解决方案对于海鲜行业的环境可持续性至关重要.
- 颗粒式污泥技术为先进的废水处理提供了一个有前途的途径.
研究的目的:
- 通过无氧-无氧-有氧 (AAO) 工艺研究颗粒污泥在海鲜废水处理中的有效性.
- 在不同处理阶段,描述颗粒污泥中的微生物群体结构.
- 评估关键污染物的去除效率,包括化学氧气需求 (COD),总 (TN),和总 (TP).
主要方法:
- 从传统活性污泥来源培养颗粒型污泥.
- 无氧-无氧-有氧 (AAO) 生物反应器的运行用于海鲜废水处理.
- 对COD,TN,氨和TP去除的性能监测.
- 使用16S rRNA测序进行元基因组学分析,以分析微生物群落.
主要成果:
- 取得了成功的颗粒污泥的培养.
- 该AAO工艺显示了高的去除效率:COD>93%,TN 56.668.6%,8088.57%.
- 总 (TP) 去除效率中等,为47.36% ± 10.33%.
- 甲基因组分析揭示了多样化和均分布的微生物群落,在厌氧,无氧和有氧阶段具有明显的主导类 (Bacillota,Thermodesulfobacteriota,Pseudomonadota).
结论:
- 在AAO系统中的颗粒污泥是一种强大的技术,用于处理海鲜加工废水,特别是有机和化合物.
- 微生物社区结构在AAO过程的不同阶段是动态的,有助于治疗效率.
- 可能需要进一步优化,以增强该系统的总去除.
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