膜生物反应器（MBR）和浸没式膜电生物反应器（SMEBR）中跨膜压力（TMP）与污泥特性的相关性。
Correlations between trans-membrane pressure (TMP) and sludge properties in submerged membrane electro-bioreactor (SMEBR) and conventional membrane bioreactor (MBR).
机构信息
Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Canada.
出版信息
Bioresour Technol. 2012 Sep;120:199-205. doi: 10.1016/j.biortech.2012.06.043. Epub 2012 Jun 21.
The influence of sludge properties in SMEBR and conventional MBR pilot systems on membrane fouling was investigated. Generated data were analyzed using statistical analysis Pearson's product momentum correlation coefficient (r(p)). Analysis showed that TMP had strong direct (r(p)=0.9182) and inverse (r(p)=-0.9205) correlations to mean particle size diameter in MBR and SMEBR, respectively. TMP in SMEBR had a strong direct correlation to the sludge mixed liquor suspended solids concentration (MLSS) (r(p)=0.7757) while a weak direct correlation (r(p)=0.1940) was observed in MBR. SMEBR showed a moderate inverse correlation (r(p)=-0.6118) between TMP and soluble carbohydrates (EPS(c)) and a very weak direct correlation (r(p)=0.3448) to soluble proteins (EPS(p)). Conversely, EPS(p) in MBR had more significant impact (r(p)=0.4856) on membrane fouling than EPS(c) (r(p)=0.3051). The results provide insight into optimization of operational conditions in SMEBR system to overcome membrane fouling.
研究了 SMEBR 和传统 MBR 中污泥特性对膜污染的影响。使用统计学分析 Pearson 乘积矩相关系数（r(p)）对生成的数据进行了分析。分析表明，TMP 与 SMEBR 和 MBR 中的平均颗粒粒径直径具有很强的直接（r(p)=0.9182）和间接（r(p)=-0.9205）相关性。SMEBR 中的 TMP 与污泥混合液悬浮固体浓度（MLSS）之间具有很强的直接相关性（r(p)=0.7757），而在 MBR 中则观察到较弱的直接相关性（r(p)=0.1940）。SMEBR 中 TMP 与可溶碳水化合物（EPS(c)）之间存在中度负相关（r(p)=-0.6118），而与可溶蛋白质（EPS(p)）之间存在较弱的直接相关性（r(p)=0.3448）。相反，MBR 中的 EPS(p)对膜污染的影响比 EPS(c)（r(p)=0.3051）更为显著（r(p)=0.4856）。研究结果为优化 SMEBR 系统的运行条件以克服膜污染提供了深入了解。
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