Both synthetic and real municipal wastewaters were used to verify the applicability of a novel AAO-SBSPR (Anaerobic-Anoxic-Oxic / Sequencing Batch Sidestream Phosphorus Recovery) process developed for the phosphorus (P) recovery and nutrients removal. P recovery strategy based on P mass balance of the process was employed where sludge retention time (SRT) of the systems was extended. Meanwhile, the anoxic/aerobic volume ratio was increased to enhance the activity of denitrifying P uptake. The results show that up to 59.8% and 75.2% of P from real and synthetic wastewaters were continuously recovered at the SRT of 35 d, respectively. The lower P recovery efficiency of the system fed with real wastewater was due to its lower influent P load and P content in activated sludge after P recovery was decreased from 0.059 mgP/mgVSS to 0.033 mgP/mgVSS. The analysis of the kinetic and stoichiometric parameters suggested that activities of the polyphosphate accumulating organisms (PAOs) in P recovery systems were retained under high P recovery efficiency, and more glycogen was degraded to provide energy for acetate uptake. This resulted in the highest average TP removal efficiency of 94.0% for the AAO-SBSPR process fed with real wastewater. Moreover, the enhancement of denitrifying P uptake activity was observed in P recovery systems. It was further improved by increasing the volume of the anoxic tank, which resulted in better TN removal performance. Meanwhile, the diversity of the microbial community was increased as the system was changed from the AAO process to the AAO-SBSPR process, and the relative abundances of the key functional bacteria such as nitrifiers, denitrifiers, PAOs and DPAOs were increased which strengthened the N-related metabolic pathways of the system remarkably.

合成废水和实际市政废水均用于验证开发用于磷（P）回收和养分去除的新型AAO-SBSPR（厌氧-缺氧-氧气/顺序分批侧流磷回收）工艺的适用性。采用了基于过程的P质量平衡的P回收策略，其中延长了系统的污泥保留时间（SRT）。同时，增加了缺氧/好氧体积比，以增强反硝化磷的吸收活性。结果表明，在35 d的SRT下，分别从真实和合成废水中分别回收了高达59.8％和75.2％的P。含真实废水的系统的P回收效率较低是因为其进水P负荷较低，并且P回收率从0.059 mgP / mgVSS降低到0.033 mgP / mgVSS后，活性污泥中的P含量降低了。动力学和化学计量参数的分析表明，在高磷回收效率下，磷回收系统中的聚磷酸盐累积生物（PAO）的活性得以保留，并且更多的糖原被降解以提供吸收乙酸盐的能量。这使得以真实废水为原料的AAO-SBSPR工艺的最高TP去除效率最高，为94.0％。此外，在磷回收系统中观察到反硝化磷吸收活性的增强。通过增加缺氧槽的容积进一步改善了此效果，从而提高了TN的去除性能。同时，随着系统从AAO流程向AAO-SBSPR流程的转变，微生物群落的多样性也随之增加，关键功能细菌（如硝化剂，反硝化剂，