The University of Queensland, Advanced Water Management Centre (AWMC), QLD 4072, Australia.
Bioresour Technol. 2012 Jan;103(1):101-8. doi: 10.1016/j.biortech.2011.10.014. Epub 2011 Oct 10.
This study focuses on the enhancement of aerobic granulation and biological nutrient removal maintenance treating domestic wastewater. Two sequencing batch reactors (SBRs) were inoculated with either only floccular sludge (100%-floc SBR) or supplemented with 10% crushed granules (90%-floc SBR). Granules developed in both reactors. The 100%-floc SBR achieved 75% of nitrogen and 93% of phosphorus removal at the end of the performance, but some floccular sludge remained in the system. The 90%-floc SBR became fully granulated and finished with 84% and 99% of nitrogen and phosphorus removal, respectively. Regarding biological phosphorus removal, nitrite was identified as an inhibitor of the process. Nitrite levels lower than 5 mg N-NO2-L(-1) were used for anoxic phosphate uptake while higher concentrations inhibited the process.
本研究聚焦于强化好氧颗粒化和生物脱氮除磷以处理生活污水。两个序批式间歇反应器（SBR）分别接种絮状污泥（100%-floc SBR）或添加 10%破碎颗粒（90%-floc SBR）。两个反应器均形成了颗粒。在性能末期，100%-floc SBR 实现了 75%的氮去除和 93%的磷去除，但系统中仍存在一些絮状污泥。90%-floc SBR 完全颗粒化，分别实现了 84%和 99%的氮和磷去除。关于生物除磷，亚硝酸盐被鉴定为该过程的抑制剂。亚硝酸盐浓度低于 5mg N-NO2-L(-1) 时，用于缺氧吸磷，而较高浓度则抑制该过程。
