【摘要】 利用提高基质浓度的方式大幅度提高硝化细菌在活性污泥中的含量．研究结果表明，氨氮负荷及碳氮比对硝化速率及效率有重要影响．当温度为３０ ℃，ｐ Ｈ＝ ６ ．５ ～８ ．０ ，ρ（ Ｄ Ｏ） ＞ ２ ｍｇ· Ｌ－ １ 时，经过１２ ～１３ 周的富集培养，每克污泥中硝化菌数量达到２ ．０ ×１０８ Ｍ Ｐ Ｎ，是未经富集污泥中硝化菌浓度的１２ ．５ ～２０ 倍更多还原

【Abstract】 The purpose of this study is to improve the concentration of nitrifying bacteria in the active sludge through improving substrate concentration. The result showed that the concentration of ammonia nitrogen and the rate of ρ (CON)/ ρ (N) had effect on the nitrifying rate and the removal rate, under the condition of 30 ℃,pH=6.5～8.0 and ρ (DO)>2mg·L -1 ,the concentration of nitrobacteria achieved per gram sludge 2.0×10 8MPN after enriched and cultivated for 13 weeks.更多还原