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首页> 外文期刊>Environmental Pollution >Application of a microalga, Scenedesmus obliquus PF3, for the biological removal of nitric oxide (NO) and carbon dioxide
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Application of a microalga, Scenedesmus obliquus PF3, for the biological removal of nitric oxide (NO) and carbon dioxide

机译：微藻斜生藻PF3的应用，用于生物去除一氧化氮（NO）和二氧化碳

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摘要

Nitrogen oxide (NOx) emissions from flue gas lead to a series of environmental problems. Biological removal of Nitrogen oxide (NOx) from flue gas by microalgae is a potential approach for reducing the problems caused by these emissions. However, few microalgal strains are reported to remove NOx from flue gas. Here, a microalga strain PF3 (identified as Scenedesmus obliquus), which can remove NOx and fix CO2 from flue gas is isolated. The tolerance of Scenedesmus obliquus PF3 to CO2, NO, SO2 and its adapt abilities to environmental factors (pH and temperature), and its performance in the removal of NO and CO2 are investigated. Scenedesmus obliquus PF3 showed biomass accumulation when sparged with 15% CO2 or 500 ppm NO or 50 ppm SO2, and bisulfite less than 2 mM showed no toxicity to Scenedesmus obliquus PF3. Additionally, PF3 grew well in a wide range of pH and temperatures from 4.5 to 10.5 and 15 degrees C-30 degrees C, respectively. When sparged with simulated flue gas (100 ppm NO, 10% CO2, (N-2 as balance gas)), the microalgae culture system removed NO and CO2 at a rate of 2.86 +/- 0.23 mg L-1 d(-1) and 1.48 +/- 0.12 g L-1 d(-1), respectively, where up to 96.9 +/- 0.03% (2.77 +/- 0.08 mg L-1 d(-1)) and 87.7 +/- 6.22% (1.29 +/- 0.01 mg L-1 d(-1)) of the removed NO and CO2, respectively, were assimilated in algal biomass. These results suggest that Scenedesmus obliquus PF3 is a promising candidate for NOx removal and carbon fixation of flue gas. (C) 2019 Elsevier Ltd. All rights reserved.
机译：烟道气中的氮氧化物（NOx）排放导致一系列环境问题。微藻从烟气中生物去除氮氧化物（NOx）是减少由这些排放物引起的问题的潜在方法。但是，几乎没有微藻菌株能从烟气中去除NOx。在此，分离了一种微藻菌株PF3（标识为斜生藻），该菌株可以去除烟道气中的NOx并固定CO2。研究了斜生场面藻PF3对CO2，NO，SO2的耐受性及其对环境因素（pH和温度）的适应能力，以及其在去除NO和CO2方面的性能。当用15％CO2或500 ppm NO或50 ppm SO2鼓泡时，斜生scenedes PF3表现出生物量积累，而小于2 mM的亚硫酸氢盐对斜生scenedes PF3没有毒性。此外，PF3分别在4.5至10.5和15摄氏度至30摄氏度的宽pH和温度范围内生长良好。当用模拟烟道气（100 ppm NO，10％CO2，（N-2作为余量气体）喷射）时，微藻培养系统以2.86 +/- 0.23 mg L-1 d（-1）的速率去除NO和CO2 ）和1.48 +/- 0.12 g L-1 d（-1），分别高达96.9 +/- 0.03％（2.77 +/- 0.08 mg L-1 d（-1））和87.7 +/- 6.22藻类生物质中分别吸收了％（1.29 +/- 0.01 mg L-1 d（-1））去除的NO和CO2。这些结果表明，斜生栅藻PF3是烟气中NOx去除和碳固定的有前途的候选者。 （C）2019 Elsevier Ltd.保留所有权利。

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  • 来源
    《Environmental Pollution》 |2019年第1期|344-351|共8页
  • 作者

    Ma Shanshan; Li Da; Yu Yanling; Li Dianlin; Yadav Ravi S.; Feng Yujie;

  • 作者单位

    Harbin Inst Technol Sch Environm State Key Lab Urban Water Resource & Environm Harbin 150090 Heilongjiang Peoples R China;

    Harbin Inst Technol Sch Environm State Key Lab Urban Water Resource & Environm Harbin 150090 Heilongjiang Peoples R China|Harbin Inst Technol Sch Chem & Chem Engn Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Sch Chem & Chem Engn Harbin 150001 Heilongjiang Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Flue gas; DeNOx; CO2 fixation; Microalgae isolation; Scenedesmus obliquus;

    机译：烟气脱氮固定二氧化碳微藻分离;斜角场景;

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