论文部分内容阅读
研究了生物陶粒反应器处理微污染源水时，反应器内异养菌对有机物降解与硝化自养菌对氨氮氧化作用之间的相互关系。得出下列结论：①低有机物浓度（ＣＯＤ＜４０ｍｇ／Ｌ）时，进水有机物浓度变化对硝化自养菌去除氨氮的影响不大；高有机物浓度（ＣＯＤ＞４０ｍｇ／Ｌ）时，进水有机物浓度上升对氨氮的去除有抑制作用。②氨氮浓度上升将引起异养菌对有机物去除效率的上升，上升到一定程度后趋于稳定。
The relationship between biodegradation of heterotrophic bacteria in bioreactors and biodegradation of organic pollutants and nitrification autotrophic bacteria for ammonia oxidation was studied. The following conclusions are drawn: 1 Low organic matter concentration (COD<40mg/L), the change of influent organic matter concentration has little effect on the removal of ammonia nitrogen by nitrifying autotrophic bacteria; when the organic matter concentration (COD> 40mg/L) is high, the organic matter in the influent The increase in concentration has an inhibitory effect on the removal of ammonia nitrogen. 2 The increase of ammonia nitrogen concentration will cause the increase of organic matter removal efficiency by heterotrophic bacteria, and it will tend to stabilize after rising to a certain extent.