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快速丰富AnAOB,使用一种新的藻/藻修饰技术,用于增强的DEAMOX工艺

Qixiang Zhou¹, Dawen Gao¹, Ao Xu¹

¹Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China; Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China.

|June 8, 2024

概括

一种新型载体有效地丰富了用于DEnitrifying氧化 (DEAMOX) 过程的anammox细菌 (AnAOB). 这种方法通过增强生物膜的形成,显著改善了污染水中的去除.

科学领域:

环境科学环境科学
微生物学微生物学
水处理处理水的方法

背景情况:

脱氨氧化 (DEAMOX) 工艺在污染的地表水中治疗氨和酸盐方面显示出前景.
丰富缓慢生长的阿纳莫克斯细菌 (AnAOB) 是优化DEAMOX过程的一个关键挑战.

研究的目的:

开发一种新型载体,有效丰富AnAOB.
研究载体对生物膜结构和AnAOB生长的影响.
评估使用新型载体处理低污染水的DEAMOX工艺的性能.

主要方法:

开发了一种聚氨粘合性维米库利特/陀马林 (VTP) 改性载体.
扫描电子显微镜 (SEM) 用于分析生物膜结构.
量化了细胞外聚合物 (EPS) 含量和微生物群落 (特定细菌的相对丰度).
测量了去除效率和anammox的贡献.

主要成果:

维特普-1载体 (维米库利特:游 = 1:1) 显示出卓越的性能,达到87.6%的总去除效率.
亚纳莫克斯细菌对总去除有63%的贡献.
VTP-1载体促进了增强的生物膜形成和增加的EPS分泌 (85.34 mg/gVSS),促进了AnAOB聚合.
在VTP-1系统中,Candidatus Brocadia和Thauera的相对丰度显著增加.

结论:

开发的VTP-1载体有效地丰富了AnAOB,增强了生物膜形成和DEAMOX过程性能.
载体通过NH4+吸附和NO2-供应为AnAOB生长创造了一个有利的微环境.
这项研究提供了一种可行的方法,用于启动DEAMOX工艺处理低污染水.

关键词:

亚纳姆莫克斯 (Anammox) 是一个生物去除生物去除低氨的低氨的.修改后的航空公司部分脱化部分脱化

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