| 间歇曝气连续流反应器同步硝化反硝化除磷 |
| 摘要点击 3369 全文点击 1176 投稿时间：2018-07-13 修订日期：2018-08-14 |
| 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 连续流反应器 间歇曝气 反硝化聚磷菌 同步硝化反硝化除磷 生活污水 |
| 英文关键词 continuous flow reactor intermittent aeration denitrifying phosphorus accumulating organisms(DPAOs) simultaneous nitrification and denitrifying phosphorus removal domestic sewage |
|
| 中文摘要 |
| 采用连续流反应器处理生活污水，保持厌氧段格室为3格，将缺氧段格室从2格减少至0格，好氧段格室由5格逐渐增加至7格，Run1时对好氧段格室采用连续曝气，Run2~Run4时采用间歇曝气.曝/停比分别为：40 min/20 min、40 min/30 min、40 min/40 min，硝化液回流比从150%逐渐减少至0%.Run4时，平均进水COD、NH4+-N、TN、PO43--P浓度分别为259.34、60.26、64.42、6.10 mg·L-1，出水COD、NH4+-N、TN、PO43--P分别为26.40、1.03、5.84、0.30 mg·L-1.反应器对氮素的去除量从Run1时的192.30 mg·h-1逐渐增加至Run4时的244.00 mg·h-1，相应地去除率从65.40%逐渐增大至95.30%；从Run1~Run4，反硝化聚磷菌和聚磷菌的活性分别从36.05%和38.20%增大至140.50%和133.40%；通过间歇曝气在连续流反应器中实现了同步硝化反硝化除磷脱氮，为污水处理厂提标改造提供参考. |
| 英文摘要 |
| A continuous flow reactor (TCFR) with 10 compartments was used to treat domestic sewage. The anaerobic compartments of TCFR were kept at 3. The anoxic compartments of TCFR were reduced from 2 to 0. Therefore, the aerobic compartments of TCFR were increased gradually from 5 to 7. The aerobic compartments were set to continual aeration in Run1 and intermittent aeration from Run2 to Run4. The aeration/non-aeration ratios were 40 min/20 min,40 min/30 min, and 40 min/40 min, respectively. The nitrification liquid reflux ratios were reduced gradually from 150% to 0%. When the average influent concentrations of COD, NH4+-N, TN, and PO43--P were 259.34, 60.26, 64.42, and 6.10 mg·L-1, respectively, the corresponding effluent concentrations were 26.40, 1.03, 5.84, and 0.3 mg·L-1, respectively in Run4. The nitrogen removal amounts increased gradually from 192.30 mg·h-1 in Run1 to 244.00 mg·h-1 in Run4, and the corresponding removal rates increased from 65.40% to 95.30%. The activity of denitrifying phosphorus accumulating organisms (DPAOs) and phosphorus accumulating organisms (PAOs) increased from 36.05% and 38.20% in Run1 to 140.50% and 133.40% in Run4, respectively. Simultaneous nitrification and denitrifying phosphorus removal was achieved in TCFR by adopting intermittent aeration, which provided a reference for the reformation of sewage treatment plants. |
|
|
|
