Dimethyl phthalate biodegradation by Dunaliella tertiolecta |
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作者姓名: | Yan Hai Liu Yun xia |
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作者单位: | Research Center for Eco Environmental Sciences;Chinese Academy of Sciences;Beijing 100085;China,Research Center for Eco Environmental Sciences;Chinese Academy of Sciences;Beijing 100085;China |
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基金项目: | the National Natural Science Foundation of China and the Foundation of State Key Lab. Of Environmental chemistry and Pollution Control, China |
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摘 要: | Dunaliella tertiolecta has an ability to biodegrade dimethyl phthalate(DMP) was found in this study, and the average of the biodegradation rates were 11.3 mg/(L·d) and 30.5 mg/(L·d), and the average of the phthalic acid (PA) production rates were 1.5 mg/(L·d) and 3.6 mg/(L·d), for initial 100 mg/L and 300 mg/L DMP, respectively. The larger amount of accumulation by D. tertiolecta under higher DMP concentration may be responsible for the increase of biodegradation rate, and one of products of DMP biodegradation by D. tertiolecta may be PA. By fitting the process of DMP biodegradation by D. tertiolecta with a kinetic equation newly suggested, the standard deviations between calculated and observed values were 2.5 mg/L and 5.7 mg/L, respectively.
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关 键 词: | dimethyl phthalate dunaliella tertiolecta biodegradation. |
收稿时间: | 1997-07-02 |
修稿时间: | 1997-10-22 |
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