基于序批式悬浮生物膜反应器处理生活污水的新型藻菌共生系统的性能及机制。
Performance and mechanism of a novel algal-bacterial symbiosis system based on sequencing batch suspended biofilm reactor treating domestic wastewater.
机构信息
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
出版信息
Bioresour Technol. 2018 Oct;265:422-431. doi: 10.1016/j.biortech.2018.06.033. Epub 2018 Jun 14.
A novel algal-bacterial symbiosis system based on sequencing batch suspended biofilm reactor (A-SBSBR) was developed for simultaneously enhanced nitrogen (N) and phosphorus (P) removal from domestic wastewater. Results showed that the total N (TN) and P (TP) removal efficiencies in A-SBSBR increased to 69.91% and 94.78%, respectively. The mechanism analysis indicated that TN removal mainly occurred at non-aeration stage, and TP removal happened during the whole cycle in A-SBSBR. Compared to control SBSBR, TN removal by denitrification and anabolism and TP removal by anabolism in A-SBSBR increased by 12.70%, 7.64% and 50.13%, respectively. The Chlorophyll a accumulation in biofilm increased to 4.80 ± 0.08 mg/g. Algae related to Chlorella and Scenedesmus and bacteria related to Flavobacterium, Micropruina and Comamonadaceae were enriched in A-SBSBR and responsible for the enhanced nutrients removal effect. This study may provide a new solution to achieve nutrients removal enhancement from wastewater.
基于序批式悬浮生物膜反应器（A-SBSBR）开发了一种新型的藻菌共生系统，用于同时增强生活污水中氮（N）和磷（P）的去除效果。结果表明，A-SBSBR 中的总氮（TN）和总磷（TP）去除效率分别提高到 69.91%和 94.78%。机理分析表明，TN 的去除主要发生在非曝气阶段，而 TP 的去除则发生在 A-SBSBR 的整个周期内。与对照 SBSBR 相比，A-SBSBR 中反硝化和合成代谢的 TN 去除率分别增加了 12.70%和 7.64%，而合成代谢的 TP 去除率则增加了 50.13%。生物膜中的叶绿素 a 积累量增加到 4.80±0.08mg/g。A-SBSBR 中富集了与小球藻和栅藻有关的藻类以及与黄杆菌属、微单胞菌属和根瘤菌科有关的细菌，这些藻类和细菌对增强营养物质去除效果起作用。本研究可能为从废水中实现营养物质去除增强提供了一种新的解决方案。
Zotero 插件