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对反应堆配置和关键因素的评估,以加强基于anammox的去除

Divyesh Parde¹, Manaswini Behera¹, Rajesh Roshan Dash¹

¹School of Infrastructure, Indian Institute of Technology Bhubaneswar, Jatni, Argul, Odisha, 752050, India.

|December 18, 2024

概括

移动床生物膜反应器 (MBBR) 是使用anammox工艺去除的最有效方法,效率达到94%. 这项研究评估了MBBR,SBR和UASBR,优化了anammox细菌的条件.

科学领域:

环境科学环境科学
微生物学微生物学
化学工程是化学工程的重要组成部分.

背景情况:

污水处理在满足环境标准和优化成本方面面临着挑战.
对传统方法来说,anammox工艺在去除方面具有显著的优势.

研究的目的:

评估上游无氧泥毯反应堆 (UASBR),移动床生物膜反应堆 (MBBR) 和顺序批量反应堆 (SBR) 对于anammox细菌培养和去除的效率.
为了研究碳与 (C/N) 比率,酸盐与 (NO2−-N) 和铁 (Fe) 度对anammox性能的影响.

主要方法:

使用合成废水的三个反应堆配置 (UASBR,MBBR,SBR) 的比较.
在150天内监测去除效率.
对C/N比率,NO2−-N和Fe度的分析.
对MBBR污泥进行16S rRNA元基因组学分析.

主要成果:

MBBR实现了最高的总去除效率 (TNRE) 94% ± 3%,其次是SBR (85% ± 3%) 和UASBR (73% ± 3%).
从3增加到8增加的C/N比率降低了TNRE.
铁度在1-5mg/L之间增强了特定的anammox活性 (SAA),而更高的度则抑制了它.
150 mg/L以上的NO2−-N度显著降低了SAA.
在MBBR污泥中,Candidatus Brocadia细菌被确定为主要物种 (20.4%).

结论:

在废水处理中,MBBR在基于anammox的去除方面表现出卓越的性能.
优化C/N比率,Fe和NO2−-N度对于最大限度地提高anammox工艺效率至关重要.
候选虫 (Candidatus Brocadia) 的存在凸显了MBBR适用于培养有效的anammox社区的适用性.

关键词:

在Anammox的工艺过程中.生物废水处理生物废水处理微生物社区的微生物社区.移动床生物膜反应堆的移动床生物膜反应堆.污水处理污水处理污水处理

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