| 硝化速率法用于活性污泥活性测试的研究 |
| |
| 引用本文： | 符成泽,李咏梅,顾国维.硝化速率法用于活性污泥活性测试的研究[J].环境污染与防治,2006,28(4):264-266,287. |
| |
| 作者姓名： | 符成泽 李咏梅 顾国维 |
| |
| 作者单位： | 同济大学环境科学与工程学院,污染控制与资源化研究国家重点实验室,上海,200092 |
| |
| 摘 要： | 以城市污水厂回流污泥中的硝化细菌(氨氧化细菌和亚硝酸盐氧化细菌)为受试生物,HgCl2为标准毒性物质,通过对两组实验--氨氧化速率实验(NH 4-N→NO-2-N)和亚硝酸盐氧化速率实验(NO-2-N→NO-3-N)的研究表明,氨氧化细菌对HgCl2的灵敏度(IC50=0.034 mmol/L)明显高于亚硝酸盐氧化细菌(IC50=0.20 mmol/L).氨氧化速率法测试活性污泥活性时,使用NH 4-N或NO-X-N指标需要120 min或更长的时间,但使用NO-2-N指标仅需30 min就可完成测试,而且结果重现性要比NH 4-N和NO-X-N好,其变异系数CV为5.9 %.
|
| 关 键 词： | 活性污泥活性 氨氧化细菌 亚硝酸盐氧化细菌 半数抑制浓度 |
| 修稿时间： | 2005-08-08 |
Study on nitrification inhibition for measuring of activity of activated sludge |
| |
| Fu Chengze,Li Yongmei,Gu Guowei.Study on nitrification inhibition for measuring of activity of activated sludge[J].Environmental Pollution & Control,2006,28(4):264-266,287. |
| |
| Authors: | Fu Chengze Li Yongmei Gu Guowei |
| |
| Institution: | College of Environmental Science and Engineering, Tongji University, State Key Laboratory of Pollution Con trol and Resource Reuse, Shanghai 200092 |
| |
| Abstract: | Nitrosomonas and Nitrobacter,which were contained in activated sludge,were used for measuring of activity of activated sludge,and HgCl_(2) was chosen as the standard toxicant.Two methods ammonia oxidation and nitrite oxidation were studied respectively,and higher sensitivity was found with Nitrosomonas than with Nitrobacter(IC_(50)=0.034 mmol/L for Nitrosomonas,IC_(50)=0.20 mmol/L for Nitrobacter).When using ammonia oxidation for measuring activity of activated sludge,NH~+_4-N or NO~-_X-N could be determined,but more than 120 min were needed for good results.While NO~-_2-N was determined,good results could be obtained within 30 min with the smaller standard deviation of the IC_(50)(CV=5.9 %). |
| |
| Keywords: | Activity of activated sludgeNitrosomonasNitrobacterMedian inhibition concentration(IC_(50)) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
