| 一体化A/O生物膜反应器低温硝化研究 |
| 摘要点击 1522 全文点击 1566 投稿时间：2005-11-22 修订日期：2006-04-24 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 一体化生物膜反应器 硝化 短程硝化 温度 碱度 |
| 英文关键词 combined biofilm reactor nitrification short-cut nitrification temperature alkalinity |
|
| 中文摘要 |
| 采用自行设计制作的新型一体化A/O生物膜反应器，研究了温度、进水碱度对反应器硝化性能的影响.结果表明，当反应器温度控制在20，15和10℃时，硝化率分别为98%，90%和60%.此时进水COD和TN浓度分别为100～150 mg/L和65～78 mg/L.总氮去除率分别为50%，30%和20%.当反应器温度控制在8℃，进水中不加有机碳源，随着进水碱度的增加，硝化率从72%提高到95%，在低温下取得了良好的硝化效果.当进水碱度为280 mg/L时，反应器各区出现亚硝酸盐积累，亚硝化率达到80%.详细分析了形成亚硝酸盐积累的原因. |
| 英文摘要 |
| An experimental study was carried out to investigate the nitrification performance of a novel combined airlift biofilm reactor devised and made by our lab. The results showed that when the temperature of the reactor was maintained at 20,15 and 10℃,the nitrification efficiency was 98%,90% and 60% respectively with the influent COD ranging between 100～150 mg/L and TN being 65～78 mg/L. Under the above conditions the total nitrogen removal efficiency was 50%,30% and 20% as a result of the absence of organic carbon and low temperature. At 8℃,nitrification efficiency increased (from 72% to 95%) in evidence with the increasing influent alkalinity when no organic carbon was added to the influent. When the influent alkalinity was 280 mg/L,nitrite accumulation occurred in each zone of the reactor. The accumulation rate was as high as 80%. The reason of nitrite accumulation was analysed in detail. |
