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首页> 外文会议>Water Environment Federation 75th annual technical exhibition amp; conference (WEFTEC 2002) >Model-Based Evaluation of Competition between Polyphosphate- and Glycogen-Accumulating Organisms
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Model-Based Evaluation of Competition between Polyphosphate- and Glycogen-Accumulating Organisms

机译：基于模型的聚磷酸盐和糖原积累生物之间竞争的评估

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The competition between polyphosphate-accumulating organisms (PAOs) and glycogenaccumulatingrnnon-polyphosphate organisms (GAOs) were evaluated using mathematical modelrnsimulations. The models for PAOs and GAOs were calibrated and able to provide satisfactoryrnpredictions of acetate, ortho-phosphate, biomass glycogen, biomass polyhydroxyalkanoatesrn(PHAs), and biomass concentrations compared with experimental observations. It wasrndemonstrated that both anaerobic acetate uptake and aerobic distribution of stored PHAs arernimportant factors in determining the competition between PAOs and GAOs. At 30oC and 10-dayrnsludge age, the kinetic advantage of anaerobic acetate uptake for GAOs is one of the mostrnimportant factors in determining the competition between PAOs and GAOs. At 30oC and 3-dayrnsludge age, aerobic glycogen formation rate for GAOs ( GAOrngl q ), in addition to anaerobic acetaternuptake, was demonstrated to be an important factor in determining the dominance between PAOsrnand GAOs. In addition, the mathematical models were able to simulate the coexistence of PAOsrnand GAOs at 30oC and 5-day sludge age
机译：使用数学模型模拟评估了聚磷酸盐积累生物（PAO）和糖原积累非聚磷酸盐生物（GAO）之间的竞争。校准了PAO和GAO的模型，与实验观察结果相比，该模型能够提供令人满意的乙酸盐，正磷酸盐，生物质糖原，生物质聚羟基链烷酸酯（PHA）和生物质浓度的预测。结果表明，厌氧乙酸盐的摄取和所储存PHAs的好氧分布都是决定PAO和GAO之间竞争的重要因素。在30oC和10天污泥龄时，厌氧乙酸盐吸收GAO的动力学优势是决定PAO和GAO之间竞争的最重要因素之一。在30oC和3天污泥龄时，除厌氧乙酸酯吸收外，GAOs（GAOrngl q）的好氧糖原形成速率被证明是决定PAOsrn和GAOs之间优势的重要因素。此外，数学模型能够模拟30oC和5天污泥龄下PAOsrn和GAO的共存

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