Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia.
Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia.
Bioresour Technol. 2015 Aug;190:352-8. doi: 10.1016/j.biortech.2015.04.104. Epub 2015 May 1.
This study investigates the influence of key biomass parameters on specific oxygen uptake rate (SOUR) in a sponge submerged membrane bioreactor (SSMBR) to develop mathematical models of biomass viability. Extra-cellular polymeric substances (EPS) were considered as a lumped parameter of bound EPS (bEPS) and soluble microbial products (SMP). Statistical analyses of experimental results indicate that the bEPS, SMP, mixed liquor suspended solids and volatile suspended solids (MLSS and MLVSS) have functional relationships with SOUR and their relative influence on SOUR was in the order of EPS>bEPS>SMP>MLVSS/MLSS. Based on correlations among biomass parameters and SOUR, two independent empirical models of biomass viability were developed. The models were validated using results of the SSMBR. However, further validation of the models for different operating conditions is suggested.
本研究考察了关键生物质参数对海绵淹没式膜生物反应器（SSMBR）中比需氧速率（SOUR）的影响，以开发生物质可行性的数学模型。胞外聚合物物质（EPS）被视为结合 EPS（bEPS）和可溶微生物产物（SMP）的一个综合参数。对实验结果的统计分析表明，EPS、bEPS、混合液悬浮固体和挥发性悬浮固体（MLSS 和 MLVSS）与 SOUR 具有功能关系，它们对 SOUR 的相对影响顺序为 EPS＞bEPS＞SMP＞MLVSS/MLSS。基于生物质参数与 SOUR 之间的相关性，建立了两种独立的生物质可行性经验模型。使用 SSMBR 的结果对模型进行了验证。然而，建议进一步验证模型在不同操作条件下的适用性。
