| 1. | A problem related to nitrification is a drop in ph for the system due to the formation of nitric acid .
和硝化作用有关的一个问题就是由于生成硝酸而使系统内的PH值降低。 |
| 2. | The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decomposition, nitrification and denitrification .
土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。 |
| 3. | Study of factors influencing ammonia nitrification
氨氮生物硝化过程影响因素研究 |
| 4. | Acclimation in partial nitrification process of long mcrt
亚硝化系统的污泥适应性 |
| 5. | Effects of free ammonium and ph on partial nitrification process
污水生物亚硝化的影响 |
| 6. | The effect of temperature on short - cut nitrification denitrification
新工艺中生物脱氮及影响因素研究 |
| 7. | Thermo - lability ; nitrification ; low temperature ; biofilm activity
热不稳定性硝化反应低温生物膜活性 |
| 8. | Influence of do on nitrification of municipal wastewater with low c n ratio
比污水生物亚硝化的影响分析 |
| 9. | Mineralization and nitrification of soil ni trogen in calcareous soil profile
石灰性土壤剖面氮素的矿化和硝化作用 |
| 10. | Commissioning the bio - nitrification plant at the shenzhen reservoir in early 1999
深圳水库的生物硝化站已于一九九九年年初启用。 |
