التفاصيل البيبلوغرافية
| العنوان: |
Biodegradation of phenanthrene and pyrene in compost-amended soil. |
| المؤلفون: |
Yuan, Shaw Y., Su, Lai M., Chang, Bea V. |
| المصدر: |
Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering; Jun2009, Vol. 44 Issue 7, p648-653, 6p, 1 Diagram, 5 Charts, 1 Graph |
| مصطلحات موضوعية: |
BIODEGRADATION of organic compounds, SOIL amendments, COMPOSTING, PHENANTHRENE, POLYCYCLIC aromatic compounds, PARTICLE size distribution, ARTHROBACTER |
| مستخلص: |
This study investigated the biodegradation of the polycyclic aromatic hydrocarbons (PAHs) phenanthrene and pyrene in compost and compost-amended soil. The degradation rates of the two PAHs were phenanthrene > pyrene. The degradation of PAH was enhanced when the two PAHs were present simultaneously in the soil. The addition of either of the two types of compost (straw and animal manure) individually enhanced PAH degradation. Compost samples were separated into fractions with various particle size ranges, which spanned 2-50 μ m, 50-105 μ m, 105-500 μ m, and 500-2000 μ m. We observed that the compost fractions with smaller particle sizes demonstrated higher PAH degradation rates. However, when the different compost fractions were added to soil, compost particle size had no significant effect on the rate of PAH degradation. Of the micro-organisms isolated from the soil-compost mixtures, strains S1, S2, and S8, which were identified as Arthrobacter nicotianae, Pseudomonas fluorescens, and Bordetella Petrii, respectively, demonstrated the best degradation ability. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
