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.
Physical model of the mass transfer for flocculent sludge was proposed macroseopically 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. 2figs.10refs.
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2009年第2期108-111,共4页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
国家自然科学基金资助项目(20876037)
湖南省自然科学基金资助项目(07JJ3088)
关键词
高浓度
絮状颗粒污泥
动力学
比表面积
更新频率
high concentration
flocculent granule sludge
dynamics model
specific surface area
update frequency
