【摘要】 从宏观角度提出了絮状污泥的传质物理模型,该模型指出:利用高分子有机药剂使形成的絮状颗粒污泥,在适当剪切条件下始终维持"包裹-破裂-再包裹"不断循环的过程,絮状颗粒污泥内部微生物与氧气、有机物等物质的接触、吸附和捕获的几率大大提高.并从絮体比表面积的更新频率的角度推导其生物降解的动力学模型.更多还原

【Abstract】 Physical model of the mass transfer for flocculent sludge was proposed macroscopically which indicted that the probability of kernel contact,absorption and trapping were increased greatly among the microorganism in the flocculent granular sludge and oxygen,organism and so on through keeping the flocculent granular sludge cycling constantly according to the order of "enwrap- fracture- enwrap" with the help of polymer organic reagent under appropriate shearing conditions. In addition,the dynamic model of biodegradation was derived from the update frequency of flcos specific surface area.更多还原