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安纳莫克斯和内源性脱过程的协同集成,同时去除碳,和

Jianyuan Zhen^1,2, Zhi-Bin Wang³, Bing-Jie Ni^2,4

¹School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, China.

Environmental science & technology

|May 31, 2024

概括

一个新的系统有效地从废水中去除碳,和,使用部分脱,去除和anammox过程. 这种无氧混反应堆技术为废水处理提供了可持续的解决方案.

科学领域:

环境工程环境工程
微生物学微生物学
生物技术是生物技术.

背景情况:

传统的废水处理方法难以同时去除碳,和.
现有的方法往往需要大量的能量投入 (通风) 和大面积的土地.
开发高效的营养物质去除综合系统对于环境可持续性至关重要.

研究的目的:

为了研究一种协同的内源性部分脱-去除合的anammox (SEPD-PR/A) 系统的可行性.
为了实现化学氧气需求 (COD),总 (TN) 和 (TP) 在改性无氧混反应堆 (mABR) 中的同步去除.
了解微生物群落结构和功能基因,涉及到在寡质化条件下的营养物质去除.

主要方法:

一个经过四个隔间改造的无氧混反应堆 (mABR) 的运行,该反应堆被注射了特定的微生物联合体.
在136天内监测流入水和废水质量参数 (COD,TN,TP).
基于网络的分析和转基因组测序,用于微生物社区分析和功能基因分析.

主要成果:

实现了高清除效率:COD为88.6%,TN为97.2%,TP为89.1%.
确定了关键的微生物参与者:非化积聚生物 (DPAO) 和非化糖原积聚生物 (DGAO) 主导了碳去除,而*Candidatus Brocadia*物种则负责通过anammox介导的去除.
在寡头形条件下,不同反应堆的不同功能作用和*hzs*基因的更高活性得到了证明.

结论:

在mABR中的SEPD-PR/A系统是一种可行且有效的方法,可以同时去除营养.
该系统在没有空气的寡质条件下高效运行,减少运营成本和土地足迹.
这种创新方法为处理低强度的市政废水和含酸盐的废水提供了有希望的解决方案.

关键词:

在 anammox 中使用.内源的部分脱-anammox 的部分脱.较低的C/N比率.甲基因组学分析的方法多种细菌的协作协作

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