Respirometric evaluation of side-stream treatment of reject water as a source of nitrifying bacteria for main-stream activated sludge bioreactors.
Respirometric evaluation of side-stream treatment of reject water as a source of nitrifying bacteria for main-stream activated sludge bioreactors.
复制标题
DOI：
10.2166/wst.2009.621
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Oerther DB
中科院分区：
文献类型：
--
作者：
Smith RC;Oerther DB
进行了一项实验室规模的生物反应器研究，以表征由于处理废水的侧流反应器的生物强化而导致的主流反应器硝化功能的差异。目的是评估悬浮生长侧流生物反应器的配置如何影响主流生物反应器中的硝化功能。在高温下运行的主流反应器中没有观察到生物强化效应。尽管在每种情况下都观察到亚硝酸盐积累，但在生物增强和控制主流反应器中观察到氨完全氧化成硝酸盐。此外，呼吸测量法并未显示出在高温下运行的生物增强反应器具有优异的动力学特性。在低温下，生物强化可以稳定主流反应器 B2 中由 PFR 侧流进行生物强化的氨氧化。在主流生物反应器 B2 的冷运行期间的大部分时间里观察到氨完全氧化。此外，呼吸测量显示与对照生物反应器相比，氨氧化速率更高，亚硝酸盐氧化更稳定。
A laboratory-scale bioreactor study was conducted to characterize differences in nitrification function in main-stream reactors due to bioaugmentation from side-stream reactors treating reject water. The objective was to evaluate how configuration of a suspended growth side-stream bioreactor impacts nitrification function in the main-stream bioreactor. A bioaugmentation effect was not observed in main-stream reactors operated at warm temperatures. Complete oxidation of ammonia to nitrate was observed in the bioaugmented and control main-stream reactors although nitrite accumulation was observed in each case. Furthermore, respirometry did not reveal superior kinetics in bioaugmented reactors operated at warm temperatures. At cold temperatures bioaugmentation may have stabilized ammonia oxidation in main-stream reactor B2 bioaugmented from a PFR side-stream. Complete ammonia oxidation was observed for most of cold period of operation in the main-stream bioreactor B2. Furthermore, respirometry revealed a higher rate of ammonia oxidation and more stable nitrite oxidation compared with the control bioreactor.
影响因子：
2.7
作者：
Hellinga, C;Schellen, AAJC;Heijnen, JJ
通讯作者：
Heijnen, JJ
影响因子：
3.1
作者：
Mossakowska, A;Reinius, LG;Hultman, B
通讯作者：
Hultman, B
影响因子：
3.8
作者：
Chandran, K;Smets, BF
通讯作者：
Smets, BF