| 假丝酵母对养殖水体中亚硝酸盐的降解特性 |
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| 引用本文： | 吴伟,余晓丽,李咏梅.假丝酵母对养殖水体中亚硝酸盐的降解特性[J].中国环境科学,2001,21(1):0-0. |
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| 作者姓名： | 吴伟 余晓丽 李咏梅 |
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| 作者单位： | 1. 中国水产科学研究院淡水渔业研究中心,
2. 广西壮族自治区水产研究所, |
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| 基金项目： | 广西壮族自治区科研基金资助项目（桂科金9916028） |
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| 摘 要： | 应用假丝酵母(Candida sp.)对影响亚硝酸盐降解的各种主要因素进行了研究,发现降解菌在25～30℃,pH值5.6～7.0及亚硝酸盐初始浓度0～1.0mg/L范围内保持高活性.当亚硝酸盐浓度大于1.5mg/L时,平均降解速率线性下降.当接种量(菌悬液/反应液)为2 mL/1000mL时亚硝酸盐的降解是高效与经济的.同时水体中有机物、微生物的含量及Ca2+与Mg2+的比例对降解率有一定的影响.
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| 关 键 词： | 假丝酵母 亚硝酸盐 降解 |
| 文章编号： | 1000-6923(2001)01-0008-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2000年6月5日 |
Studies on the degradation
characteristics of nitrite in the fishery water by Candida sp |
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| WU Wei,YU Xiao-li,LI Yong-mei.Studies on the degradation
characteristics of nitrite in the fishery water by Candida sp[J].China Environmental Science,2001,21(1):0-0. |
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| Authors: | WU Wei YU Xiao-li LI Yong-mei |
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| Institution: | WU Wei1,YU Xiao-li2,LI Yong-mei2 |
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| Abstract: | The main factors affecting the degradation of nitrite using Candida sp. were studied. The results indicated that the degradation maintained high activity with initial concentration of nitrite 0~1.0 mg/L at pH 5.6~7.2 and 25~30℃. The average degradation rate occurred linear decrease with the concentration of nitrite beyond 1.5 mg/L. The rate was effi-cient and economic with 2mL bacteria liquid to 1000mL reaction solution containing nitrite. At the same time, the or-ganic compounds, microorganisms and the ratio of Ca2+ to Mg2+ in water had definite effect on the degradation rate. |
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