Simultaneous nitritation and denitritation in a multi-cycle SBR treating low-strength wastewater

Simultaneous nitritation and denitritation in a multi-cycle SBR treating low-strength wastewater
复制标题

多循环SBR处理低浓度废水的同时亚硝化和反亚硝化

DOI:
10.1016/j.biteb.2021.100816
复制
发表时间:
2021-09
影响因子:
--
通讯作者:
Zhang Zhihao
Zhang Zhihao
中科院分区:
--
文献类型:
--
作者:
Xu Guangjing;Zhang Qun;Sun Yucong;Zhang Zhihao

文献摘要

参考文献

相似文献

本研究提出了一种新的控制策略,以实现在多循环序批式反应器与固定生物膜和活性污泥集成的同时亚硝化和反硝化。在15 ℃ ~ 24 ℃的温度范围内,对模拟废水中总氮的去除率为86.0%,COD/N平均为3.3。批式试验和高通量测序结果表明,硝化螺旋菌属和亚硝化单胞菌属主要分布在生物膜中,因此曝气过程中亚硝化单胞菌产生的部分亚硝酸盐可同时被生物膜中的硝化细菌还原,从而导致硝酸盐的低积累。因此,亚硝酸盐可以通过在缺氧和好氧阶段的净化器去除,因此悬浮的硝化螺菌由于食物短缺而被完全抑制,并且在短的固体停留时间内容易被冲洗掉。
This study presents a novel control strategy to achieve simultaneous nitritation and denitritation in a multi-cycle sequencing batch reactor with integrated fixed-biofilm and activated sludge. 86.0% of total nitrogen was removed from synthetic wastewater with an average COD/N ratio of 3.3 at 15 ◦C–24 ◦C. Batch tests and high-throughput sequencing results showed that Nitrospira and Nitrosomonas genus mainly distributed in the biofilm, so some of the nitrite produced by Nitrosomonas could be simultaneously reduced by denitrifiers in the biofilm during aeration, leading to low nitrate accumulation. As such, nitrite could be removed by denitrifiers in both anoxic and oxic phases, and accordingly suspended Nitrospira was completely suppressed due to food shortage and easily washed out at a short solids retention time.
COD/N 比率和 DO 浓度对多循环 SBR 中 NOB 抑制的影响
DOI: 10.1016/j.jece.2021.105735
发表时间: 2021-08
影响因子: 7.7
作者:
Xu Guangjing;Zhang Zhihao;Gao Fan
通讯作者: Gao Fan
DOI: 10.1101/480780
发表时间: 2018-11
期刊: bioRxiv
影响因子: --
作者:
M. Laureni;D. Weissbrodt;K. Villez;O. Robin;N. de Jonge;A. Rosenthal;G. Wells;J. Nielsen;E. Morgenroth;A. Joss
通讯作者: M. Laureni;D. Weissbrodt;K. Villez;O. Robin;N. de Jonge;A. Rosenthal;G. Wells;J. Nielsen;E. Morgenroth;A. Joss
DOI: 10.1016/j.envpol.2020.114140
发表时间: 2020-02
影响因子: 8.9
作者:
Chenxiang Sun;Bing-Chang Zhang;Zhan Chen;Wentao Qin;X. Wen
通讯作者: Chenxiang Sun;Bing-Chang Zhang;Zhan Chen;Wentao Qin;X. Wen
DOI: 10.1016/j.chemosphere.2017.09.049
发表时间: 2017-12
期刊: Chemosphere
影响因子: 8.8
作者:
Guangjing Xu;Han Wang;Jun Gu;Nan Shen;Z. Qiu;Yan Zhou;Yu Liu
通讯作者: Guangjing Xu;Han Wang;Jun Gu;Nan Shen;Z. Qiu;Yan Zhou;Yu Liu
DOI: 10.1016/j.chemosphere.2019.125433
发表时间: 2020-03
期刊: Chemosphere
影响因子: 8.8
作者:
Wenru Liu;Fang-Fang Yin-Fang;Dianhai Yang
通讯作者: Wenru Liu;Fang-Fang Yin-Fang;Dianhai Yang