Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, PR China.
Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, PR China; Key Laboratory of the Three Gorges Reservoir's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, PR China.
Bioresour Technol. 2016 Dec;222:309-316. doi: 10.1016/j.biortech.2016.09.132. Epub 2016 Oct 5.
In this study, a novel process combined simultaneous partial nitrification, anammox and denitrification (SNAD) with denitrifying phosphorus removal (DPR) was proposed for advanced nitrogen removal. Firstly simulating sewage was introduced to a sequencing batch reactor (SBR) for organic matter removal and anaerobic phosphorus release (stage 1). Then effluent of stage 1 with low COD was discharged to a sequencing biofilm batch reactor (SBBR) for partial nitrification, anammox and partial denitrification (stage 2). The nitrate produced in SBBR was fed into SBR again, in which the nitrate was removed by DPR process (stage 3). The performance of the SNAD-DPR process was investigated. And effects of carbon source addition during start-up period on microbial community were discussed based on 16S rRNA amplicon pyrosequencing.
在这项研究中，提出了一种新型的同时部分硝化、厌氧氨氧化和反硝化（SNAD）与反硝化除磷（DPR）相结合的工艺，用于深度脱氮。首先，模拟污水被引入序批式间歇反应器（SBR）进行有机物去除和厌氧释磷（阶段 1）。然后，将阶段 1 的低 COD 出水排放到序批式生物膜间歇反应器（SBBR）中进行部分硝化、厌氧氨氧化和部分反硝化（阶段 2）。在 SBBR 中产生的硝酸盐再次进入 SBR，其中硝酸盐通过 DPR 工艺去除（阶段 3）。考察了 SNAD-DPR 工艺的性能，并通过 16S rRNA 扩增子焦磷酸测序探讨了启动阶段添加碳源对微生物群落的影响。
