| 高温ASBR处理水热改性污泥的工艺特性 |
| 摘要点击 1254 全文点击 928 投稿时间：2009-12-19 修订日期：2010-01-21 |
| 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 水热改性污泥 厌氧序批式反应器 酸化 有机负荷 |
| 英文关键词 thermal-hydrolyzed sewage sludge anaerobic sequencing batch reactor (ASBR) acidification organic loading rate (OLR) |
|
| 中文摘要 |
| 采用高温ASBR处理水热改性污泥.结果表明，高温ASBR处理水热改性污泥的有机负荷(COD)由7.762 kg/(m3·d)提升到13.106 kg/(m3·d)后，会导致反应器内VFA的积累，pH和产气量的下降，反应器出现“酸化”现象.这种酸化现象属可恢复性酸化.系统恢复后，ASBR的有机负荷(COD)能达到10 kg/(m3·d).高温ASBR在有机负荷(COD)为2.523、 4.196、 7.762、 10.091 kg/(m3·d)时的产气率(CH4/COD投入)分别为250、 247、 219、 187 mL.高温ASBR的有机负荷OLR与产甲烷速率MPR和COD产气率之间都呈现良好的线性关系，随着OLR的增加，产甲烷速率增大，COD产气率减少. |
| 英文摘要 |
| The characteristics of thermophilic anaerobic sequencing batch reactor (ASBR) treating thermal-hydrolyzed sewage sludge were investigated. The results showed that increasing the OLRCOD of the thermophilic ASBR treating thermal-hydrolyzed sewage sludge from 7.762 kg/(m3·d) to 13.106 kg/(m3·d) lead to the “acidification” of the reactor with the accumulation of the volatile fatty acid (VFA) and the drop of the pH and gas production. This acidification is recoverability. The OLRCOD of the thermophilic ASBR treating thermal-hydrolyzed sewage sludge can reach to 10 kg/(m3·d) after the system was recovered. Under the OLRCOD of 2.523, 4.196, 7.762 and 10.091 kg/(m3·d), the methane yield (CH4/CODinput) of thermophilic ASBR were 250, 247, 219 and 187mL respectively. There are significant linear relationship among OLR and MPR, the methane yield. With the increase of the OLR, the methane production rate increased while the methane yield reduced. |
