文献类型：期刊文献

中文题名：高浓度氨氮废水的短程硝化研究

英文题名：A Research on Treatment of Wastewater with High Ammonia Concentration via Partial Nitrification

作者：王厦[1];冯晓西[1]

机构：[1]华东理工大学环境工程研究所,上海200237

年份：2006

卷号：25

期号：2

起止页码：74

中文期刊名：上海环境科学

外文期刊名：Shanghai Environmental Sciences

收录：CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：高浓度氨氮废水;短程硝化;生物降解

外文关键词：High ammonia concentration wastewater Partial nitrification Biodegradation

摘要：采用普通好氧活性污泥驯化培养启动亚硝化反应器,探索了在实验室条件下,亚硝化反应的最适宜条件。结果表明,在温度(T)为35℃、pH 值为7.5左右,初始污泥浓度0.7g/L 时,控制较高的初始进水氨氮浓度和较低的 DO 浓度,有利于亚硝化反应的启动:驯化后,反应器内氨氮处理效果良好,即使进水氨氮浓度高达2400mg/L 时,氨氮去除率也能达到95%以上;在实验中,亚硝化的最适宜条件为,温度:29～35℃、pH 值:7.0～8.0。同时,实验结果表明,在一定范围内,溶解氧浓度越高,亚硝化反应速率越快;C/N 比过高会严重抑制亚硝化反应。
Partial nitrification start-up and reactor condition were studied to treat the wastewater with high ammonia concentration. Results showed that partial nitrification could be started with conventional activated sludge. Higher influent ammonia concentration and lower DO content were found to be beneficial to the experiment start-up under conditions of temperature 35℃ and pH value around 7.5. This reactor could remove ammonia very efficiently and even an average ammonia removal rate could reach over 95% when the influent ammonia concentration was up to 2,400 mg/L. The temperature in a range of 29 - 35℃ and pH value between 7.0 - 8.0 would benefit partial nitrification process. The DO content had a positive effect while the C/N ratio had a negative effect on the partial nitrification process.