通过固定 Comamonas sp. ZF-3 补充微生物群落,改善焦化废水处理并提高生物多样性。

IF 2.2 4区 生物学 Q3 MICROBIOLOGY
Ke Yuan, Yanbiao Ma, Qiuyu Li
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引用次数: 0

摘要

本研究旨在探讨焦化废水(CWW)处理过程中固定化微生物的污染物去除性能、微生物群落结构和潜在基因功能之间的关系。结果表明,与游离细胞(48%、7%)相比,含有 Comamonas sp. ZF-3 菌株的固定化生物质对焦化废水具有更强的抗性,对 COD、NH4+-N 的去除率(92%、60%)也更高;同时,气相色谱-质谱(GC-MS)结果表明,焦化废水中的主要有机污染物,包括酚类化合物、杂环化合物和多环芳烃,基本上都被固定化微生物所去除。在 123 天的降解实验中,对固定化载体的高通量 16S rRNA 基因测序分析表明,微生物群落更加稳定和多样化,这与载体实验中观察到的同时去除 COD 和 NH4+-N 的结果一致。其中,Comamonas sp. ZF-3 在固定化载体中持续保持最高比例(23.25%),同时还检测到 Nitrosomonas(1.47%)和 Nitrospira(1.90%)。此外,固定化载体微生物群落在膜转运和异种生物降解代谢方面的潜在功能相对丰度较高,这可能间接显示了固定化功能微生物的生物降解活性。这项工作说明了固定化微生物的存活状况和潜在基因功能,为固定化载体在化武处理中的实际应用提供了依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improved treatment of coking wastewater and higher biodiversity through immobilization of Comamonas sp. ZF-3 supplemented microbial community.

The aim of this study was to investigate the relationship among pollutant removal performance, microbial community structure, and potential gene function of immobilized microorganisms in coking wastewater (CWW) treatment process. The results showed that the immobilized biomass containing strain Comamonas sp. ZF-3 displayed greater resistance to CWW and higher COD, NH4+-N removal efficiency (92%, 60%) than free cells (48%, 7%), meanwhile, the results from GC-MS proved main organic pollutants in CWW including phenolic compounds, heterocyclic compounds, and polycyclic aromatic hydrocarbons were basically removed by immobilized microorganisms. During 123 days of degradation experiment, high-throughput 16S rRNA gene sequencing analysis of immobilized carriers showed more stable and diverse microbial community, which was consistent with simultaneous removal of COD and NH4+-N observed in carrier experiment. Among them, Comamonas sp. ZF-3 continuously remained at the highest proportion (23.25%) in immobilized carrier, while Nitrosomonas (1.47%) and Nitrospira (1.90%) were simultaneously detected. Moreover, microbial community of immobilized carriers showed higher relative abundance of potential function in membrane transport and xenobiotics biodegradation and metabolism, which may indirectly displayed biodegradation activity of immobilized functional microorganisms. This work illustrated the survival status and potential gene function of immobilized microorganisms, and provided basis for practical application of immobilized carriers in CWW treatment.

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来源期刊
Fems Microbiology Letters
Fems Microbiology Letters 生物-微生物学
CiteScore
4.30
自引率
0.00%
发文量
112
审稿时长
1.9 months
期刊介绍: FEMS Microbiology Letters gives priority to concise papers that merit rapid publication by virtue of their originality, general interest and contribution to new developments in microbiology. All aspects of microbiology, including virology, are covered. 2019 Impact Factor: 1.987, Journal Citation Reports (Source Clarivate, 2020) Ranking: 98/135 (Microbiology) The journal is divided into eight Sections: Physiology and Biochemistry (including genetics, molecular biology and ‘omic’ studies) Food Microbiology (from food production and biotechnology to spoilage and food borne pathogens) Biotechnology and Synthetic Biology Pathogens and Pathogenicity (including medical, veterinary, plant and insect pathogens – particularly those relating to food security – with the exception of viruses) Environmental Microbiology (including ecophysiology, ecogenomics and meta-omic studies) Virology (viruses infecting any organism, including Bacteria and Archaea) Taxonomy and Systematics (for publication of novel taxa, taxonomic reclassifications and reviews of a taxonomic nature) Professional Development (including education, training, CPD, research assessment frameworks, research and publication metrics, best-practice, careers and history of microbiology) If you are unsure which Section is most appropriate for your manuscript, for example in the case of transdisciplinary studies, we recommend that you contact the Editor-In-Chief by email prior to submission. Our scope includes any type of microorganism - all members of the Bacteria and the Archaea and microbial members of the Eukarya (yeasts, filamentous fungi, microbial algae, protozoa, oomycetes, myxomycetes, etc.) as well as all viruses.
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