生物反应器
生物炭
硝酸盐
化学
反硝化
弹丸
镉
反硝化细菌
生物降解
生物量(生态学)
微生物
生物吸附
废水
核化学
环境化学
制浆造纸工业
氮气
环境工程
生物
有机化学
环境科学
生态学
农学
工程类
动物
热解
作者
Zhi-Jie Zheng,Amjad Ali,Junfeng Su,Shuai Zhang,Lindong Su,Zening Qi
出处
期刊:Chemosphere
[Elsevier]
日期:2022-02-01
卷期号:296: 134011-134011
被引量:4
标识
DOI:10.1016/j.chemosphere.2022.134011
摘要
To efficiently and simultaneously remove nitrate (NO3--N) and Cd(II) from aqueous solution, a novel type of biochar fungal pellet (BFP) immobilized denitrification bacteria (Cupriavidus sp. H29) composite was used in a bioreactor. The removal performance of the bioreactor R1 for the initial concentration of 27.7 mg L-1 nitrate and 10.0 mg L-1 Cd(II) reached 98.1 and 93.9% respectively, and the inoculation of strain H29 in bioreactor R1 significantly enhanced the removal efficiency of contaminants. The 3D-EEM spectra analysis showed that the activity of microorganisms in the bioreactor was higher at a lower concentration of Cd(II). FTIR indicated the effect of functional groups in BFP in bioadsorption of Cd(II). In addition, high-throughput analysis of species composition of the microbial community in the bioreactors at different levels demonstrated that strain H29 played a significant part in the bioreactor. This research provided a perspective for simultaneous restoration of nitrate and heavy metals in wastewater, and also enriched the application of fungal pellet (FP) in reactors.
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