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Series Piezoelectric Quartz Crystal Response Kinetics for T.ferrooxidans Growth in the
Presence of Cu(Ⅱ) |
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| 作者姓名： | CHAI Li yuan WEI Wan zhi YAO Shou zhuo |
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| 作者单位： | 1. Department of Metallurgical Science and Engineering，Central South University of Technology，Changsha 410083，China; 2. College of Chemistry and Chemical Engineering，Hunan University，Changsha |
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| 基金项目： | TheNationalPostdoctoralFundinChina(No .4421) |
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| 摘 要： | Ｉｎｂｉｏｈｙｄｒｏｍｅｔａｌｌｕｒｇｙ ,Ｔ .ｆｅｒｒｏｏｘｉｄａｎｓｉｓｏｎｅｏｆｔｈｅｍｏｓｔｉｍｐｏｒｔａｎｔｍｉｃｒｏｏｒｇａｎｉｓｍｓ1]ｆｏｒｔｈｅｅｘｔｒａｃｔｉｏｎｏｆｂａｓｅｍｅｔａｌｓｉｎｃｌｕｄｉｎｇｃｏｐｐｅｒ2～ 4 ],ｎｉｃｋｅｌ5,6 ],ｚｉｎｃ7],ｌｅａｄ8]ｅｔｃ ,ａｎｄｔｈｅｐｒｅｔｒｅａｔｍｅｎｔｏｆａｒｓｅｎｉｃｒｅｆｒａｃｔｏｒｙｇｏｌｄｏｒｅｓ9～ 12 ].ＴｈｅｓｔｕｄｉｅｓｏｎｔｈｅｇｒｏｗｔｈｏｆＴ .ｆｅｒｒｏｏｘｉｄａｎｓｈａｖｅｂｅｅｎｃｏｎｄｕｃｔｅｄ…
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| 收稿时间： | 13 October 1999 |
A series piezoelectric quartz crystal response kinetics for T. ferrooxidans growth in the presence of Cu(II) |
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| CHAI Li yuan ,,WEI Wan zhi ,YAO Shou zhuo .A series piezoelectric quartz crystal response kinetics for T. ferrooxidans growth in the presence of Cu(II)[J].Journal of Central South University of Technology,2000,7(1):15-19. |
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| Authors: | Chai Li-yuan Wei Wan-zhi and Yao Shou-zhuo |
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| Affiliation: | (1) Department of Metallurgical Science and Engineering, Central South University of Technology, 410083 Changsha, China;(2) College of Chemistry and Chemical Engineering, Hunan University, 410082 Changsha, China |
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| Abstract: | The kinetics on the growth of T. ferroxidans in the presence of Cu(II) was studied using of series piezoelectric quartz crystal (SPQC). Arsenic ion inhibits the growth
of T. ferrooxidans, which is consistent with the previous results by other measuring methods. This further demonstrates that the SPQC can monitor
the chemical activity of T. ferrooxidans growth. Cupric ion accelerates the growth of T. ferrooxidans. The mechanism was discussed, i. e., copper promotes the protein enzyme of T. ferrooxidans, rusticyanin, to form over the range of cupric ion concentration studied. The reaction order of cupric ion in accelerating
the bacterial growth is 0.067. The growth of T. ferrooxidans is dependent on temperature, the apparent reaction activation energy decreases from 25.56 kJ/mol to 18.32 kJ/mol because
of the addition of 10 mg/L Cu(II) to the bacterial growth solution of pH 2.0 at initial inoculum of 10%.
Foundation item: The National Postdoctoral Fund in China(No. 4421)
Biography of the first author: CHAI Li-yuan, professor, born in 1966, obtained Doctor degree of Engineering in 1997. Interested research fields: Hydrometallurgy
or biohydrometallurgy, especially of gold; preparation of novel functional powders; recycling of nonferrous metals and environmental
protection. |
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| Keywords: | series piezoelectric quartz crystal T ferrooxidans growth kinetics sigmoid curve cupric ion |
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