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首页> 外文期刊>Polish Journal of Environmental Studies >Mixotrophic Denitrification Desulfurization Wastewater Treatment Process: Bioreactor Performance and Analysis of the Microbial Community
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Mixotrophic Denitrification Desulfurization Wastewater Treatment Process: Bioreactor Performance and Analysis of the Microbial Community

机译：混合营养反硝化脱硫废水处理工艺：生物反应器性能和微生物群落分析

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摘要

The mixotrophic denitrification desulfurization process was adopted in an upflow attached-growth bioreactor for wastewater treatment. The microorganisms in the system were acclimated to remove sulfide, nitrate, nitrite, and organics simultaneously while the contaminants were finally converted to element sulfur, nitrogen gas, and carbon dioxide. The 16S rDNA clone library technique was utilized to investigate the characteristics of the microbial community within this mixotrophic environment. The results showed that Azoarcus was the main sulfur-based denitrification desulfurization bacteria and had a relative abundance of 8.0% in this system. It used sulfide as electron donors, with both nitrate and nitrite as eletron acceptors. Thauera, Vulcanibacillus, and Paracoccus were the main heterotrophic denitrification bacteria and had the relative abundances of 29.5%, 9.82%, and 1.78%, respectively. They utilized arganics as electron donors, with nitrate or nitrite as electron acceptors. The high removal efficiencies of contaminants were attributed to the interaction of these two main species.
机译：上流附着式生物反应器采用混合营养脱氮脱硫工艺处理废水。系统中的微生物可以同时去除硫化物，硝酸盐，亚硝酸盐和有机物，同时污染物最终转化为元素硫，氮气和二氧化碳。利用16S rDNA克隆文库技术研究了这种混合营养环境中微生物群落的特征。结果表明，固氮菌是主要的基于硫的反硝化脱硫细菌，在该系统中相对丰度为8.0％。它使用硫化物作为电子给体，硝酸盐和亚硝酸盐都作为电子受体。 Thauera，Vulcanibacillus和Paracoccus是主要的异养反硝化细菌，相对丰度分别为29.5％，9.82％和1.78％。他们利用有机物作为电子供体，硝酸盐或亚硝酸盐作为电子受体。污染物的高去除效率归因于这两个主要物种的相互作用。

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  • 来源
    《Polish Journal of Environmental Studies》 |2016年第6期|2491-2497|共7页
  • 作者

    Li Wei; Lin Jianguo; Zhang Libo; Zhu Kunpeng; Liu Xinyi; Wang Zhen; Cao Binxia; Guo Ping;

  • 作者单位

    Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China;

    Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China;

    Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China;

    Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China;

    Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China;

    Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China;

    Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China;

    Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    microbial community; mixotrophic; sulfide; sulfur; nitrite;

    机译：微生物群落;混养;硫化物;硫;亚硝酸盐;

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