| 底泥硝化菌群用于生物毒性测试的初步研究 |
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| 引用本文： | 董春宏,胡洪营,黄 霞,钱 易. 底泥硝化菌群用于生物毒性测试的初步研究[J]. 环境科学研究, 2002, 15(6): 45-48 |
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| 作者姓名： | 董春宏 胡洪营 黄 霞 钱 易 |
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| 作者单位： | 清华大学,环境科学与工程系,环境模拟与污染控制国家重点联合实验室,北京,100084 |
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| 基金项目： | 国家重点基础研究项目 (G19990 45 711) |
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| 摘 要： | 研究了铜离子对底泥和活性污泥硝化活性的抑制作用的差异.结果表明,与活性污泥相比,底泥中的硝化菌对铜离子的敏感性较高,底泥的铜离子半数抑制率IC50为12.43 μmol/L,活性污泥的IC50为46.90 μmol/L.这初步表明用污染物对底泥硝化活性的抑制程度评价污染物的生物毒性是可行的.
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| 关 键 词： | 生物毒性 生态功能效应 铜离子 底泥 活性污泥 硝化活性 |
| 文章编号： | 1001-6929(2002)06-0045-04 |
| 收稿时间： | 2002-07-16 |
Preliminary Study on Biotoxicity Test Using Nitrifying Bacteria in Sediment |
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| DONG Chun-hong,HU Hong-ying,HUANG Xia and QIAN Yi. Preliminary Study on Biotoxicity Test Using Nitrifying Bacteria in Sediment[J]. Research of Environmental Sciences, 2002, 15(6): 45-48 |
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| Authors: | DONG Chun-hong HU Hong-ying HUANG Xia QIAN Yi |
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| Affiliation: | State Key Joint laboratory of Environment Simulation and Pollution Control,Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | The inhibition of copper ion on nitrification activity of nitrifying bacteria in sediment and activated sludge were studied.The results showed that the inhibition of copper ion on nitrifying bacteria in sediment was stronger than that in activated sludge.The values of IC50 for sediment and activated sludge were 12.43 μmol/L and 46.90 μmol/L respectively.The experimental results demonstrated that the inhibition of pollutants on nitrification activity of sediment could be used for toxicity evaluation. |
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| Keywords: | biotoxicity eco|functional effect copper ion sediment activated sludge nitrification activity |
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