摘要
本实验考察两种接种污泥源———活性污泥和厌氧颗粒在培养好氧颗粒污泥过程中的理化特性的差异。实验结果表明,在颗粒化过程中接种污泥MLVSS的增殖率均呈现先为负值然后逐渐上升稳定在一定水平直到颗粒成熟以后基本保持不变的趋势;随着环境条件的改变,ECP含量呈现规律性变化,都经历了先增加后降低最后趋于稳定的趋势,厌氧颗粒ECP含量较少且在培养过程中变化幅度较小,可能与厌氧颗粒含有较多的惰性物质,向好氧颗粒污泥转化过程污泥形态不变种群结构逐渐转化的特征有很大关系;两种成熟的好氧颗粒的异养微生物和硝化菌的活性都没有明显差异。
Activated sludge and anaerobic granular sludge were used as seeding sludge to culture aerobic sludge granules in this paper. The specific oxygen uptake rate （SOUR）, ECP variation, and MLVSS reproduction rate in granulation were analyzed. The results indicated that, for both seeding sludge, the ECP varied in a way that rose first and decreased gradually till maintaining stable at a certain level. MLVSS reproduction rate appeared a negative value and then rose to positive gradually, at last maintained stable.The SOUR of matured aerobic granules had no difference for the two different seeding materials, and so the activity of mierodes in the granules had no significant difference.
出处
《中国沼气》
2006年第3期11-15,共5页
China Biogas
关键词
活性污泥
厌氧颗粒污泥
颗粒化
好氧颗粒污泥
activated sludge
anaerobic granular sludge
granulation
aerobic granular sludge
