优化双流化/anammox过程的启动策略:对生物膜微生物群体组成的影响
Zulkarnaini Zulkarnaini1, Norihisa Matsuura2, Sui Kanazawa3
1Department of Environmental Engineering, Universitas Andalas, Pauh District, Padang, West Sumatra 25163, Indonesia; Graduate School of Natural Science & Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
概括
一种新的双流化/亚纳摩克斯工艺有效地从废水中去除. 逐步启动策略通过促进生物膜内的化细菌生长,显著提高了去除率.
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:
- 从富含氨的废水中去除低能量的是环境保护的关键.
- 化/亚纳摩克斯工艺为高效的去除提供了一个有前途的途径.
- 优化创业战略是实现这些过程中稳定和高绩效的关键.
研究的目的:
- 为了评估一阶段化/安纳莫克斯工艺的有效性,其中有两次流入以去除.
- 为了比较不同的启动策略来培养化和anammox微生物.
- 在不同的操作条件下调查微生物群体结构和性能.
主要方法:
- 实验室规模的反应堆使用双流化/anammox系统运行.
- 采用了两种不同的启动策略:立即化注射剂添加与逐步培养.
- 分析了去除速率,加载速率和微生物丰富度 (anammox和化细菌).
主要成果:
- 相比于立即添加策略 (0.171 kg N/m3·d),逐步种植启动策略实现了更高的去除率 (0.276 kg N/m3·d).
- 第二个启动策略导致生物膜中化细菌的丰富性显著增加 (10.5%),相比于第一个策略 (3.7%).
- 亚纳莫克斯细菌 (Candidatus Brocadia) 和化细菌 (Nitrosomonadaceae) 在生物膜内共存,表明成功的过程集成.
结论:
- 双输入化/安纳莫克斯工艺有效地从富含氨的废水中去除.
- 逐步启动策略促进了关键微生物群落的共存和丰富,提高了过程效率.
- 这种方法有效地诱导息地分离,优化通过一个成熟的微生物联盟提取.
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