Wang Zhi-jun, Wang Wei, Gao Dian-sen, Li Fen-fang
Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
Huan Jing Ke Xue. 2005 Mar;26(2):88-92.
Parallel laboratory experiments were conducted to investigate the performance of thermophilic and mesophilic anaerobic sequencing batch reactor (ASBR) for the digestion of thermo-hydrolyzed sewage sludge. The average total COD (TCOD) removal rates of thermophilic, mesophilic ASBR at 10-day HRT and 5.42 kg/(m3 x d) TCOD loading rate were 56.20% and 61.66%, and the biogas production rates of TCOD in feeding sludge were 199 and 219 mL/g, respectively. ASBR has the unique capability of maintaining high-solid content and keeping a high solid retention time (SRT). The average SRT of thermophilic, mesophilic ASBR were 30 and 37d, respectively. Compared to mesophilic ASBR, thermophilic ASBR show considerably fewer microbial morphologies and lower methane-production, which might result in a relatively lower treatment efficiency in thermophilic ASBR than that in mesophilic ASBR.
进行了平行实验室实验，以研究嗜热和中温厌氧序批式反应器（ASBR）对热水解污水污泥的消化性能。在10天的水力停留时间（HRT）和5.42 kg/(m3·d)的总化学需氧量（TCOD）负荷率下，嗜热、中温ASBR的平均总COD去除率分别为56.20%和61.66%，进料污泥中TCOD的沼气产率分别为199和219 mL/g。ASBR具有维持高固体含量和保持高固体停留时间（SRT）的独特能力。嗜热、中温ASBR的平均SRT分别为30天和37天。与中温ASBR相比，嗜热ASBR的微生物形态明显较少，产甲烷量较低，这可能导致嗜热ASBR的处理效率相对低于中温ASBR。
