基于动力学计算分析污泥产量与污泥组分的影响因素

Analyzing the influencing factors of sludge production and sludge components by dynamic calculations

采用带有沉淀和回流的连续流反应器模型进行计算,讨论在原水基质(以BODL计)以O2作为电子受体的微生物降解过程中,分析污泥龄、水力停留时间、水温、进水浓度、惰性可挥发性固体和无机SS等因素对污泥产量和污泥组分的影响。分析结果表明:增长污泥龄可以减少污泥产量,但是存在极限最小值;上述除水力停留时间以外的其他因素均会影响污泥成分的组成。

Model of continuous-stirred reactor with settling and mixed sludge recycle were used to calculate,discussing the biodegraded process of substrate(by BODL)in raw water which is taken O2 as electron acceptor,and analyzing factors influence on sludge production and sludge components,specifically including SRT,HRT,reactor temperature,influent substrate concentration,influent inert volatile solids and influent inorganic SS.The results show that increasing SRT could reduce sludge production,but there was a minimum limit.All the above factors will affect the composition of sludge except HRT.