连续流移动床生物膜反应器在微氧和好氧交替条件下同时进行硝化、反硝化和除磷。
Simultaneous nitrification, denitrification and phosphorus removal in a continuous-flow moving bed biofilm reactor alternating microaerobic and aerobic conditions.
机构信息
Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, via Gaetano di Biasio 43, 03043 Cassino, Italy.
Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples, Italy.
出版信息
Bioresour Technol. 2020 Aug;310:123453. doi: 10.1016/j.biortech.2020.123453. Epub 2020 Apr 27.
A continuous-flow moving bed biofilm reactor (IAMBBR) alternating microaerobic and aerobic conditions was used to remove carbon, nitrogen and phosphorus through simultaneous nitrification and denitrification coupled to phosphorus removal (SNDPR). The IAMBBR was operated under different dissolved oxygen (DO) ranges (0.2-2, 0.2-3 and 0.2-4 mg L) and feed C/N ratios (2.8, 3.6 and 4.2) at HRT of 1 day. At a DO range of 0.2-3 mg L and feed C/N ratio of 3.6, the IAMBBR achieved simultaneous removal of dissolved organic carbon (DOC), total inorganic nitrogen (TIN) and P-PO with average efficiencies of 100%, 62% and 75%, respectively. Illumina sequencing revealed the coexistence of nitrifiers and P-accumulating denitrifiers (e.g. Hydrogenophaga) in the IAMBBR biofilm. Batch activity tests showed that phosphorus uptake did not occur under stable anaerobic or anoxic conditions, nor under aerobic conditions in absence of nitrate.
采用连续流移动床生物膜反应器（IAMBR），交替微氧和有氧条件，通过同步硝化反硝化和除磷（SNDPR）去除碳、氮和磷。IAMBR 在不同溶解氧（DO）范围（0.2-2、0.2-3 和 0.2-4 mg/L）和进水 C/N 比（2.8、3.6 和 4.2）下运行，水力停留时间为 1 天。在 DO 范围为 0.2-3 mg/L 和进水 C/N 比为 3.6 的条件下，IAMBR 实现了溶解有机碳（DOC）、总无机氮（TIN）和 P-PO 的同步去除，平均去除率分别为 100%、62%和 75%。Illumina 测序结果表明，IAMBR 生物膜中同时存在硝化菌和聚磷反硝化菌（如 Hydrogenophaga）。批式活性测试表明，在稳定的厌氧或缺氧条件下，或在没有硝酸盐的有氧条件下，磷的吸收都不会发生。
Zotero 插件