This study aimed to investigate the performance of a sequencing batch moving bed biofilm reactor (SB-MBBR) for biological P removal (Bio-P) treating diluted municipal wastewater at 10 °C and 20 °C, with volatile fatty acid (VFA) dosing during weekdays and without VFA dosing during weekends to simulate an industrial influenced wastewater. The overall results revealed that phosphorus removal efficiency for weekdays reached 53 % and 81 % at cold and moderated temperatures respectively. However, phosphorus removal efficiency for the weekend was 49 % for cold temperature and 52 % for moderate temperature. It was concluded that low temperature and low VFA might have suppressed the phosphate accumulating organisms (PAOs) performance. Besides, high extracellular polymeric substance (EPS) production might have hampered the PAOs activity, which could be linked to the observed high consumption of soluble chemical oxygen demand (SCOD) to P release ratio and thick biomass growth in the cold system.

这项研究旨在调查测序间歇移动床生物膜反应器（SB-MBBR）的性能，该方法通过挥发性脂肪酸（VFA）定量处理生物P去除（Bio-P）在10°C和20°C下处理稀释的市政废水。在工作日期间使用，而在周末时不使用VFA来模拟受工业影响的废水。总体结果表明，在平日和低温下，工作日的除磷效率分别达到53％和81％。然而，周末的除磷效率在低温下为49％，在中等温度下为52％。结论是低温和低VFA可能抑制了磷酸盐累积生物（PAOs）的性能。此外，高细胞外聚合物（EPS）的产生可能会阻碍PAO的活性，