群体感应
吩嗪
渗滤液
亚硝酸盐
活性污泥
化学
废水
微生物电解槽
铜绿假单胞菌
电解
污水处理
微生物燃料电池
废物管理
环境工程
细菌
环境化学
生物膜
阳极
硝酸盐
生物
生物化学
电极
有机化学
环境科学
物理化学
工程类
电解质
遗传学
作者
Hanbing Nie,Xinying Liu,Yan Dang,Dezhi Sun
标识
DOI:10.1016/j.biortech.2022.127394
摘要
In this study, a quorum sensing (QS) signal molecule, 3-oxo-C12-HSL, was supplied into ΔnosZ Pseudomonas microbial electrolysis cell system for strengthening the N2O recovery from incineration leachate. The resistance for high nitrite loading was strongly improved with nitrite removal efficiency of 80.35% compared to 67.07% from the control on day 13 due to the increasing biomass through early activated QS. Higher N2O proportion in biogas (85.85% on average) was achieved in the QS early activated reactor, which indicated the better potential for N2O recovery. Bacterial community analysis showed the purity of ΔnosZ strain with the abundance of 100% in the anode chamber at the end of the operation. This was plausibly related to the increased synthesis of phenazine derivatives by the early activated QS system. These results show a more promising way for N2O recovery by a single engineering bacteria from the high nitrogen contained actual wastewater.
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