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首页> 外文期刊>Soil & Sediment Contamination >Lab-scale experimental investigation concerning ex-situ bioremediation of petroleum hydrocarbons-contaminated soils
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Lab-scale experimental investigation concerning ex-situ bioremediation of petroleum hydrocarbons-contaminated soils

机译：关于石油烃污染土原位生物修复的实验室规模实验研究

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摘要

The bioremediation of petroleum hydrocarbons (PHCs)-polluted soils was studied by an ex-situ, lab-scale, biopile experiment with different parameters: aeration rate (1?h?day?1 and 2?h?day?1), soil moisture (44% and 60%), and microorganisms consortia addition (320 and 640?mL). The trial was conducted using eight treatment cells, each having different parameters, and one control cell for 18?weeks on soil containing 7600?±?400?mg?kg?1 total PHCs, taken from a former petroleum product warehouse in Sfantu Gheorghe, Covasna County (Romania). The microorganisms used for bioremediation were isolated from the native microflora of the polluted soil and grown in laboratory on culture media. A bioremediation yield up to 76% was obtained in the test cells, while in the control cell the reduction of PHCs content by 16% was attributed to natural attenuation. The results indicated that by addition of microorganisms the bioremediation is much more effective than natural attenuation. The results also revealed an accentuated decrease in PHC concentrations after 4?weeks of treatment, irrespective of the treatment conditions.
机译：通过出原位，实验室规模，具有不同参数的曝气率（1？H？日？1和2？日？1），土壤水分（44％和60％），和微生物组成（320和640？ml）。使用八个处理细胞进行试验，每个治疗细胞具有不同的参数，18个含有7600°的土壤（含有7600Ω·400？400？kg？1总Phcs，从索法杜Gheorghe的前石油产品仓库中获取， Covasna县（罗马尼亚）。用于生物化的微生物从污染土的天然微量群中分离出来，并在培养基上生长。在测试细胞中获得了高达76％的生物修复产率，而在对照细胞中，PHCs含量的降低归因于自然衰减。结果表明，通过添加微生物，生物化比自然衰减更有效。结果还揭示了在治疗的4周后的PHC浓度的突出率降低，而不管治疗条件如何。

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  • 来源
    《Soil & Sediment Contamination》 |2018年第8期|共14页
  • 作者

    Valer Micle; Ioana Monica Sur; Adriana Criste; Marin Senila; Erika Levei; Mariana Marinescu; Carmen Cristorean; George Calin Rogozan;

  • 作者单位

    Faculty of Materials and Environmental Engineering Department of Environment Engineering and Entrepreneurship of Sustainable Development Technical University of Cluj-Napoca;

    Faculty of Materials and Environmental Engineering Department of Environment Engineering and Entrepreneurship of Sustainable Development Technical University of Cluj-Napoca;

    Faculty of Animal Science and Biotechnologies Departament of Microbiology and Immunology University of Agricultural Sciences and Veterinary Medicine;

    INCDO-INOE 2000 Research Institute for Analytical Instrumentation;

    INCDO-INOE 2000 Research Institute for Analytical Instrumentation;

    Laboratory of physical and chemical analysis for soil science agrochemistry and environmental protection National Research and Development Institute for Soil Science Agro-Chemistry and Environment (ICPA);

    Faculty of Materials and Environmental Engineering Department of Environment Engineering and Entrepreneurship of Sustainable Development Technical University of Cluj-Napoca;

    Faculty of Materials and Environmental Engineering Department of Environment Engineering and Entrepreneurship of Sustainable Development Technical University of Cluj-Napoca;

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  • 正文语种 other
  • 中图分类 环境科学、安全科学;
  • 关键词

    Aeration; bioremediation; moisture; microorganism; petroleum hydrocarbons; soil;

    机译：曝气;生物修复;水分;微生物;石油碳氢化合物;土壤;

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