Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Graduate School at Shenzhen, Tsinghua University, China; Environmental Engineering Research Centre, Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, China.
Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Graduate School at Shenzhen, Tsinghua University, China.
Bioresour Technol. 2018 Jul;260:248-255. doi: 10.1016/j.biortech.2018.03.100. Epub 2018 Mar 31.
An integrated membrane bioreactor (MBR) system was developed for enhanced nutrient (N and P) removal and effective P recovery in wastewater treatment. The system consisted of an iron-dosing MBR and side-stream fermentation for P removal and recovery and side-stream denitrification for N removal. Around 98.1% of the total phosphorus (TP) in wastewater was removed by ferric iron-induced precipitation and membrane filtration in the aerobic MBR, and nearly 53.4% of the TP could be recovered via anaerobic fermentation from the MBR sludge. In addition, the fermenter that allowed acidogenic co-fermentation with food waste provided sufficient soluble organics for biological denitrification, and an overall 91.8% total N removal was achieved through the side-stream denitrification. High-throughput sequencing was applied to analyse the microbial communities in the integrated system, and important functional bacteria were identified for nitrification, denitrification, acidogenic fermentation and dissimilatory iron reduction through the different components of the system.
开发了一种集成膜生物反应器（MBR）系统，用于强化废水中的营养物质（N 和 P）去除和有效磷回收。该系统由铁投加 MBR 和侧流发酵组成，用于去除和回收磷，以及侧流反硝化用于去除氮。在好氧 MBR 中，铁离子诱导沉淀和膜过滤去除了废水中约 98.1%的总磷（TP），并且近 53.4%的 TP 可以通过 MBR 污泥的厌氧发酵回收。此外，允许与食物垃圾进行产酸共发酵的发酵器为生物反硝化提供了足够的可溶性有机物，通过侧流反硝化实现了总氮去除率 91.8%。高通量测序用于分析集成系统中的微生物群落，并通过系统的不同组件鉴定了硝化、反硝化、产酸发酵和异化铁还原的重要功能细菌。
