| 包气带土层中石油污染物生物降解的温度效应 |
| 摘要点击 2407 全文点击 1690 投稿时间：2000-10-16 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 石油污染 包气带 温度 生物降解速率 半衰期 |
| 英文关键词 petroleum pollution aeration zone temperature biodegradation rates half life |
|
| 中文摘要 |
| 温度是影响包气带土层中石油污染物自然衰减的重要因素.通过室内模拟实验对油污土层微生物降解的温度效应进行研究,并预测不同温度下石油污染物的半衰期.结果表明,温度对生物反应速率常数的影响符合关系式K=3145exp(-5233/T).根据该式对石油污染物的半衰期进行预测,得出5℃、10℃、20℃和30℃时包气带土层中石油污染物的半衰期分别为1499 d、1075 d、572 d和317 d. |
| 英文摘要 |
| Temperature is a significant factor of the natural attenuation of the polluted soil The effect of the temperature on the biodegradation rates and the half life of the petrochemicals in contaminated soil were evaluated in this paper by the simulative experiments in laboratory The results showed that the relationship between the temperature and the biodegradation rates was consistent with the exponential equation: K =3145exp(-5233/ T ) According to the prediction of half life of the biodegradation rates by the equation, the half life at 5 ℃, 10 ℃, 20 ℃ and 30 ℃ were 1499 days, 1075 days, 572 days and 317 days respectively |
