Manav-Demir Neslihan
Yildiz Technical University, Davutpasa Campus, Environmental Engineering Department, 34220 Esenler, Istanbul Turkey.
J Environ Health Sci Eng. 2022 Dec 26;21(1):123-132. doi: 10.1007/s40201-022-00845-8. eCollection 2023 Jun.
Fractionation of active biomass in a five-stage Bardenpho process was accomplished using an MS Excel wastewater treatment plant modeling tool based on Activated Sludge Model No. 3 extended with a bio-P module. The biomass fractions within the treatment system were predicted as autotrophs, ordinary heterotrophs, and phosphorus accumulating organisms (PAOs). Several simulations were performed in a Bardenpho process using various C/N/P ratios in primary effluent. Biomass fractionation was obtained from steady-state simulation results. The results suggest that the mass percentage of autotrophs, heterotrophs, and PAOs in active biomass range from 1.7 to 7.8%, 5.7-69.0%, and 23.2-92.6%, respectively, depending on characteristics of primary effluent. Results of principal component analysis showed that TKN/COD ratio in primary effluent determines the population of autotrophs and ordinary heterotrophs whereas PAO population is mainly a function of TP/COD ratio.
利用基于活性污泥模型3并扩展了生物除磷模块的MS Excel污水处理厂建模工具，对五阶段巴登福工艺中的活性生物质进行了分级。处理系统内的生物质级分被预测为自养菌、普通异养菌和聚磷菌（PAO）。在巴登福工艺中使用不同的进水碳/氮/磷比进行了多次模拟。生物质分级是从稳态模拟结果中获得的。结果表明，活性生物质中自养菌、异养菌和聚磷菌的质量百分比分别为1.7%至7.8%、5.7%至69.0%和23.2%至92.6%，具体取决于进水的特性。主成分分析结果表明，进水总凯氏氮/化学需氧量（TKN/COD）比决定了自养菌和普通异养菌的数量，而聚磷菌数量主要是总磷/化学需氧量（TP/COD）比的函数。
