Abstract:This activity recovery of aerobic granular was investigated in SBR with three different carbon sources including glucose, sodium acetate and a mixture of glucose-sodium acetate for 30 days. The results indicated that carbon sources greatly influenced the physical characteristics of aerobic granular sludge and TN,TP removal during the recovery period. Conversely, the removal efficiencies of COD and NH3-N had been little influenced by carbon sources in the whole activity recovery period. And aerobic granular sludge activity for COD and NH3-N removal was recoveried fully after 10 days.. After the aerobic granular sludge reached the steady state, the aerobic granular with sodium acetate showed the best effect on nitrogen and phosphorus removal, the removal efficiency of TN and TP increased from 45% and 42% to 74% and 81% respectively after 20 days. While COD specific degradation rate can reach to 10.74kgCOD/(kgMLSS?d) with glucose-sodium acetate, which was 112% than that before aerobic granular was disintegrated. The nitrification and denitrification ability of aerobic granular sludge got best recovery with sodium acetate, the specific degradation rate of NH3-N and TN reached to 0.335kgNH3-N/(kgMLSS?d) and 0.272kgTN/(kgMLSS?d) respectively and the reactivation resumed to 97% and 101% respectively.
刘剑梅, 杨昌柱, 濮文虹, 许杰, 罗应东. 碳源对解体后好氧颗粒活性恢复的影响[J]. 中国环境科学, 2010, 30(9): 1219-1225.
LIU Jian-Mei, YANG Chang-Zhu, PU Wen-Hong, XU Jie, LUO Ying-Dong. The effect of carbon source on disintegrated aerobic granular during activity recovery.. CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(9): 1219-1225.